fix: typo SignersListSet

Due to rounding, the LPTokenBalance of the last LP might not match the LP's trustline balance. This was fixed for `AMMWithdraw` in `fixAMMv1_1` by adjusting the LPTokenBalance to be the same as the trustline balance. Since `AMMClawback` is also performing a withdrawal, we need to adjust LPTokenBalance as well in `AMMClawback.`

This change includes:
1. Refactored `verifyAndAdjustLPTokenBalance` function in `AMMUtils`, which both`AMMWithdraw` and `AMMClawback` call to adjust LPTokenBalance.
2. Added the unit test `testLastHolderLPTokenBalance` to test the scenario.
3. Modify the existing unit tests for `fixAMMClawbackRounding`.

.codecov.yml

@@ -0,0 +1,37 @@
+codecov:
+  require_ci_to_pass: true
+
+comment:
+  behavior: default
+  layout: reach,diff,flags,tree,reach
+  show_carryforward_flags: false
+
+coverage:
+  range: "60..80"
+  precision: 1
+  round: nearest
+  status:
+    project:
+      default:
+        target: 60%
+        threshold: 2%
+    patch:
+      default:
+        target: auto
+        threshold: 2%
+    changes: false
+
+github_checks:
+  annotations: true
+
+parsers:
+  cobertura:
+    partials_as_hits: true
+    handle_missing_conditions : true
+
+slack_app: false
+
+ignore:
+  - "src/test/"
+  - "include/xrpl/beast/test/"
+  - "include/xrpl/beast/unit_test/"

.git-blame-ignore-revs

@@ -1,8 +1,25 @@
 # This feature requires Git >= 2.24
 # To use it by default in git blame:
 # git config blame.ignoreRevsFile .git-blame-ignore-revs
+# Format first-party source according to .clang-format
 50760c693510894ca368e90369b0cc2dabfd07f3
-e2384885f5f630c8f0ffe4bf21a169b433a16858
-241b9ddde9e11beb7480600fd5ed90e1ef109b21
-760f16f56835663d9286bd29294d074de26a7ba6
-0eebe6a5f4246fced516d52b83ec4e7f47373edd
+# Reintroduce Clang-Format & Levelization
+da1d20d6d5d862716125d60899b80fab5302954a
+# Consolidate external libraries
+da1d20d6d5d862716125d60899b80fab5302954a
+# Rename .hpp to .h
+0345a2645d0f5ad900f4fbbcaff96040d3a887fc
+# Format formerly .hpp files
+5a227dc719016e10045e17c9396ad401118044f1
+# Rewrite includes
+e61880699997398f5a746e6c4034edc7632661f5
+# Move CMake directory (#4997)
+e47b1c1b3b97c3f6d11858ee02f463596e29e7f0
+# Rearrange sources (#4997)
+bfafa2bb39e562901736d656806bd700c3699a2f
+# Rewrite includes (#4997)
+e61880699997398f5a746e6c4034edc7632661f5
+# Recompute loops (#4997)
+d25b5dcd568bb96c18e347d55fac10fe901a1bfb
+# Reformat code with clang-format-18
+02749feea88ce61c1f7eeb2d61a57d8ecf07ab11

.githooks/pre-commit

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+# Pre-commit hook that runs the suspicious patterns check on staged files
+
+# Get the repository's root directory
+repo_root=$(git rev-parse --show-toplevel)
+
+# Run the suspicious patterns script in pre-commit mode
+"$repo_root/suspicious_patterns.sh" --pre-commit
+
+# Exit with the same code as the script
+exit $?

.githooks/setup.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+echo "Configuring git to use .githooks directory..."
+git config core.hooksPath .githooks

.github/actions/xahau-ga-build/action.yml

@@ -2,6 +2,14 @@ name: build
 description: 'Builds the project with ccache integration'
 
 inputs:
+  cmake-target:
+    description: 'CMake target to build'
+    required: false
+    default: all
+  cmake-args:
+    description: 'Additional CMake arguments'
+    required: false
+    default: null
   generator:
     description: 'CMake generator to use'
     required: true
@@ -20,6 +28,10 @@ inputs:
     description: 'C++ compiler to use'
     required: false
     default: ''
+  gcov:
+    description: 'Gcov to use'
+    required: false
+    default: ''
   compiler-id:
     description: 'Unique identifier: compiler-version-stdlib[-gccversion] (e.g. clang-14-libstdcxx-gcc11, gcc-13-libstdcxx)'
     required: false
@@ -41,10 +53,11 @@ inputs:
     required: false
     default: 'dev'
   stdlib:
-    description: 'C++ standard library to use'
+    description: 'C++ standard library to use (default = compiler default, e.g. GCC always uses libstdc++)'
     required: true
     type: choice
     options:
+      - default
       - libstdcxx
       - libcxx
   clang_gcc_toolchain:
@@ -87,11 +100,6 @@ runs:
         export CCACHE_CONFIGPATH="$HOME/.config/ccache/ccache.conf"
         echo "CCACHE_CONFIGPATH=$CCACHE_CONFIGPATH" >> $GITHUB_ENV
 
-        # Keep config separate from cache_dir so configs aren't swapped when CCACHE_DIR changes between steps
-        mkdir -p ~/.config/ccache
-        export CCACHE_CONFIGPATH="$HOME/.config/ccache/ccache.conf"
-        echo "CCACHE_CONFIGPATH=$CCACHE_CONFIGPATH" >> $GITHUB_ENV
-
         # Configure ccache settings AFTER cache restore (prevents stale cached config)
         ccache --set-config=max_size=${{ inputs.ccache_max_size }}
         ccache --set-config=hash_dir=${{ inputs.ccache_hash_dir }}
@@ -122,6 +130,10 @@ runs:
           export CXX="${{ inputs.cxx }}"
         fi
 
+        if [ -n "${{ inputs.gcov }}" ]; then
+          ln -sf /usr/bin/${{ inputs.gcov }} /usr/local/bin/gcov
+        fi
+
         # Create wrapper toolchain that overlays ccache on top of Conan's toolchain
         # This enables ccache for the main app build without affecting Conan dependency builds
         if [ "${{ inputs.ccache_enabled }}" = "true" ]; then
@@ -185,7 +197,8 @@ runs:
           -DCMAKE_TOOLCHAIN_FILE:FILEPATH=${TOOLCHAIN_FILE} \
           -DCMAKE_BUILD_TYPE=${{ inputs.configuration }} \
           -Dtests=TRUE \
-          -Dxrpld=TRUE
+          -Dxrpld=TRUE \
+          ${{ inputs.cmake-args }}
 
     - name: Show ccache config before build
       if: inputs.ccache_enabled == 'true'
@@ -209,7 +222,7 @@ runs:
           VERBOSE_FLAG="-- -v"
         fi
 
-        cmake --build . --config ${{ inputs.configuration }} --parallel $(nproc) ${VERBOSE_FLAG}
+        cmake --build . --config ${{ inputs.configuration }} --parallel $(nproc) --target ${{ inputs.cmake-target }} ${VERBOSE_FLAG}
 
     - name: Show ccache statistics
       if: inputs.ccache_enabled == 'true'

.github/workflows/check-genesis-hooks.yml

@@ -0,0 +1,107 @@
+name: Check Genesis Hooks
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  check-genesis-hooks:
+    runs-on: ubuntu-24.04
+    env:
+      CLANG_VERSION: 18
+    name: Verify xahau.h is in sync with genesis hooks
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      # Install binaryen from GitHub Releases (pinned to version 100)
+      - name: Install binaryen (version 100)
+        run: |
+          curl -LO https://github.com/WebAssembly/binaryen/releases/download/version_100/binaryen-version_100-x86_64-linux.tar.gz
+          tar -xzf binaryen-version_100-x86_64-linux.tar.gz
+          sudo cp binaryen-version_100/bin/* /usr/local/bin/
+          wasm-opt --version
+
+      - name: Install clang-format
+        run: |
+          codename=$( lsb_release --codename --short )
+          sudo tee /etc/apt/sources.list.d/llvm.list >/dev/null <<EOF
+          deb http://apt.llvm.org/${codename}/ llvm-toolchain-${codename}-${CLANG_VERSION} main
+          deb-src http://apt.llvm.org/${codename}/ llvm-toolchain-${codename}-${CLANG_VERSION} main
+          EOF
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add
+          sudo apt-get update
+          sudo apt-get install clang-format-${CLANG_VERSION}
+          clang-format --version
+
+      # Install wasienv (WebAssembly SDK)
+      - name: Install wasienv
+        run: |
+          # Download install.sh
+          curl -o /tmp/wasienv-install.sh https://raw.githubusercontent.com/wasienv/wasienv/master/install.sh
+          
+          # Replace /bin to /local/bin
+          sed -i 's|/bin|/local/bin|g' /tmp/wasienv-install.sh
+
+          # Execute the installed script
+          bash /tmp/wasienv-install.sh
+
+      # Add wasienv to PATH for subsequent steps
+      - name: Setup wasienv
+        run: |
+          echo "$HOME/.wasienv/bin" >> $GITHUB_PATH
+          wasmcc -v || true
+
+      # Build and install hook-cleaner tool
+      - name: Build and install hook-cleaner
+        run: |
+          git clone https://github.com/richardah/hook-cleaner-c.git /tmp/hook-cleaner
+          cd /tmp/hook-cleaner
+          make
+          cp hook-cleaner /usr/local/bin/
+          chmod +x /usr/local/bin/hook-cleaner
+
+      # Build and install guard_checker tool
+      - name: Build and install guard_checker
+        run: |
+          cd include/xrpl/hook
+          make
+          cp guard_checker /usr/local/bin/
+          chmod +x /usr/local/bin/guard_checker
+
+      # Verify all required tools are available
+      - name: Verify required tools
+        run: |
+          echo "Checking tool availability..."
+          command -v wasmcc || (echo "Error: wasmcc not found" && exit 1)
+          command -v wasm-opt || (echo "Error: wasm-opt not found" && exit 1)
+          command -v hook-cleaner || (echo "Error: hook-cleaner not found" && exit 1)
+          command -v guard_checker || (echo "Error: guard_checker not found" && exit 1)
+          command -v xxd || (echo "Error: xxd not found" && exit 1)
+          command -v clang-format || (echo "Error: clang-format not found" && exit 1)
+          echo "All tools verified successfully"
+
+      # Execute build script to regenerate xahau.h
+      - name: Run build_xahau_h.sh
+        run: |
+          cd hook/genesis
+          ./build_xahau_h.sh
+
+      # Check if xahau.h has changed (fail if out of sync)
+      - name: Verify xahau.h is in sync
+        run: |
+          if ! git diff --exit-code include/xrpl/hook/xahau.h; then
+            echo ""
+            echo "❌ ERROR: xahau.h is out of sync with genesis hooks"
+            echo ""
+            echo "The generated xahau.h differs from the committed version."
+            echo "Please run the following command and commit the changes:"
+            echo ""
+            echo "    cd hook/genesis && ./build_xahau_h.sh"
+            echo ""
+            echo "Diff:"
+            git diff include/xrpl/hook/xahau.h
+            exit 1
+          fi
+          echo "✅ xahau.h is in sync with genesis hooks"

.github/workflows/clang-format.yml

@@ -20,7 +20,7 @@ jobs:
         sudo apt-get update
         sudo apt-get install clang-format-${CLANG_VERSION}
     - name: Format first-party sources
-      run: find include src -type f \( -name '*.cpp' -o -name '*.hpp' -o -name '*.h' -o -name '*.ipp' \) -not -path "src/magic/magic_enum.h" -exec clang-format-${CLANG_VERSION} -i {} +
+      run: find include src -type f \( -name '*.cpp' -o -name '*.hpp' -o -name '*.h' -o -name '*.ipp' \) -exec clang-format-${CLANG_VERSION} -i {} +
     - name: Check for differences
       id: assert
       run: |

.github/workflows/levelization.yml

@@ -10,7 +10,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Check levelization
-      run: Builds/levelization/levelization.sh
+      run: python Builds/levelization/levelization.py
     - name: Check for differences
       id: assert
       run: |
@@ -40,7 +40,7 @@ jobs:
           To fix it, you can do one of two things:
           1. Download and apply the patch generated as an artifact of this
              job to your repo, commit, and push.
-          2. Run './Builds/levelization/levelization.sh' in your repo,
+          2. Run 'python Builds/levelization/levelization.py' in your repo,
              commit, and push.
 
           See Builds/levelization/README.md for more info.

.github/workflows/verify-generated-headers.yml

@@ -18,6 +18,10 @@ jobs:
             generator: bash ./hook/generate_sfcodes.sh
           - target: hook/tts.h
             generator: ./hook/generate_tts.sh
+          - target: hook/ls_flags.h
+            generator: ./hook/generate_lsflags.sh
+          - target: hook/tx_flags.h
+            generator: ./hook/generate_txflags.sh
     runs-on: ubuntu-24.04
     env:
       CLANG_VERSION: 18

.github/workflows/xahau-ga-macos.yml

@@ -4,7 +4,8 @@ on:
   push:
     branches: ["dev", "candidate", "release"]
   pull_request:
-    branches: ["dev", "candidate", "release"]
+    branches: ["**"]
+    types: [opened, synchronize, reopened, labeled, unlabeled]
   schedule:
     - cron: '0 0 * * *'
 
@@ -14,6 +15,10 @@ concurrency:
 
 jobs:
   test:
+    if: >
+      github.event_name != 'pull_request' ||
+      contains(fromJson('["dev","candidate","release"]'), github.base_ref) ||
+      contains(join(github.event.pull_request.labels.*.name, ','), 'ci-full-build')
     strategy:
       matrix:
         generator:

.github/workflows/xahau-ga-nix.yml

@@ -4,9 +4,16 @@ on:
   push:
     branches: ["dev", "candidate", "release"]
   pull_request:
-    branches: ["dev", "candidate", "release"]
+    branches: ["**"]
+    types: [opened, synchronize, reopened, labeled, unlabeled]
   schedule:
     - cron: '0 0 * * *'
+  workflow_dispatch:
+    inputs:
+      full_matrix:
+        description: "Force full matrix (6 configs)"
+        required: false
+        default: "false"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -14,6 +21,10 @@ concurrency:
 
 jobs:
   matrix-setup:
+    if: >
+      github.event_name != 'pull_request' ||
+      contains(fromJson('["dev","candidate","release"]'), github.base_ref) ||
+      contains(join(github.event.pull_request.labels.*.name, ','), 'ci-full-build')
     runs-on: [self-hosted, generic, 20.04]
     container: python:3-slim
     outputs:
@@ -46,8 +57,9 @@ jobs:
                   "cc": "gcc-11",
                   "cxx": "g++-11",
                   "compiler_version": 11,
-                  "stdlib": "libstdcxx",
-                  "configuration": "Debug"
+                  "stdlib": "default",
+                  "configuration": "Debug",
+                  "job_type": "build"
               },
               {
                   "compiler_id": "gcc-13-libstdcxx",
@@ -55,8 +67,20 @@ jobs:
                   "cc": "gcc-13",
                   "cxx": "g++-13",
                   "compiler_version": 13,
-                  "stdlib": "libstdcxx",
-                  "configuration": "Debug"
+                  "stdlib": "default",
+                  "configuration": "Debug",
+                  "job_type": "build"
+              },
+              {
+                  "compiler_id": "gcc-13-libstdcxx",
+                  "compiler": "gcc",
+                  "cc": "gcc-13",
+                  "cxx": "g++-13",
+                  "gcov": "gcov-13",
+                  "compiler_version": 13,
+                  "stdlib": "default",
+                  "configuration": "Debug",
+                  "job_type": "coverage"
               },
               {
                   "compiler_id": "clang-14-libstdcxx-gcc11",
@@ -66,7 +90,8 @@ jobs:
                   "compiler_version": 14,
                   "stdlib": "libstdcxx",
                   "clang_gcc_toolchain": 11,
-                  "configuration": "Debug"
+                  "configuration": "Debug",
+                  "job_type": "build"
               },
               {
                   "compiler_id": "clang-16-libstdcxx-gcc13",
@@ -76,7 +101,8 @@ jobs:
                   "compiler_version": 16,
                   "stdlib": "libstdcxx",
                   "clang_gcc_toolchain": 13,
-                  "configuration": "Debug"
+                  "configuration": "Debug",
+                  "job_type": "build"
               },
               {
                   "compiler_id": "clang-17-libcxx",
@@ -85,7 +111,8 @@ jobs:
                   "cxx": "clang++-17",
                   "compiler_version": 17,
                   "stdlib": "libcxx",
-                  "configuration": "Debug"
+                  "configuration": "Debug",
+                  "job_type": "build"
               },
               {
                   # Clang 18 - testing if it's faster than Clang 17 with libc++
@@ -96,14 +123,16 @@ jobs:
                   "cxx": "clang++-18",
                   "compiler_version": 18,
                   "stdlib": "libcxx",
-                  "configuration": "Debug"
+                  "configuration": "Debug",
+                  "job_type": "build"
               }
           ]
           
           # Minimal matrix for PRs and feature branches
           minimal_matrix = [
               full_matrix[1],  # gcc-13 (middle-ground gcc)
-              full_matrix[2]   # clang-14 (mature, stable clang)
+              full_matrix[2],  # gcc-13 coverage
+              full_matrix[3]   # clang-14 (mature, stable clang)
           ]
           
           # Determine which matrix to use based on the target branch
@@ -111,6 +140,7 @@ jobs:
           base_ref = "${{ github.base_ref }}"  # For PRs, this is the target branch
           event_name = "${{ github.event_name }}"
           pr_title = """${{ steps.escape.outputs.title }}"""
+          pr_labels = """${{ join(github.event.pull_request.labels.*.name, ',') }}"""
           pr_head_sha = "${{ github.event.pull_request.head.sha }}"
 
           # Get commit message - for PRs, fetch via API since head_commit.message is empty
@@ -136,11 +166,24 @@ jobs:
           print(f"Base ref: {base_ref}")
           print(f"PR head SHA: {pr_head_sha}")
           print(f"PR title: {pr_title}")
+          print(f"PR labels: {pr_labels}")
           print(f"Commit message: {commit_message}")
           
-          # Check for override tags in commit message or PR title
-          force_full = "[ci-nix-full-matrix]" in commit_message or "[ci-nix-full-matrix]" in pr_title
+          # Manual trigger input to force full matrix.
+          manual_full = "${{ github.event.inputs.full_matrix || 'false' }}" == "true"
+
+          # Label/manual overrides, while preserving existing title/commit behavior.
+          force_full = (
+              manual_full
+              or "[ci-nix-full-matrix]" in commit_message
+              or "[ci-nix-full-matrix]" in pr_title
+              or ("ci-full-build" in pr_labels and "ci-nix-full-matrix" in pr_labels)
+          )
+          force_min = (
+              "ci-full-build" in pr_labels
+          )
           print(f"Force full matrix: {force_full}")
+          print(f"Force min matrix: {force_min}")
           
           # Check if this is targeting a main branch
           # For PRs: check base_ref (target branch)
@@ -148,8 +191,11 @@ jobs:
           main_branches = ["refs/heads/dev", "refs/heads/release", "refs/heads/candidate"]
           
           if force_full:
-              # Override: always use full matrix if tag is present
+              # Override: always use full matrix if forced by manual input or label.
               use_full = True
+          elif force_min:
+              # Override: always use minimal matrix if ci-full-build label is present.
+              use_full = False
           elif event_name == "pull_request":
               # For PRs, base_ref is just the branch name (e.g., "dev", not "refs/heads/dev")
               # Check if the PR targets release or candidate (more critical branches)
@@ -161,14 +207,21 @@ jobs:
           # Select the appropriate matrix
           if use_full:
               if force_full:
-                  print(f"Using FULL matrix (6 configs) - forced by [ci-nix-full-matrix] tag")
+                  print(f"Using FULL matrix (7 configs) - forced by [ci-nix-full-matrix] tag")
               else:
-                  print(f"Using FULL matrix (6 configs) - targeting main branch")
+                  print(f"Using FULL matrix (7 configs) - targeting main branch")
               matrix = full_matrix
           else:
-              print(f"Using MINIMAL matrix (2 configs) - feature branch/PR")
+              print(f"Using MINIMAL matrix (3 configs) - feature branch/PR")
               matrix = minimal_matrix
-          
+
+          # Add runs_on based on job_type
+          for entry in matrix:
+              if entry.get("job_type") == "coverage":
+                  entry["runs_on"] = '["self-hosted", "generic", 24.04]'
+              else:
+                  entry["runs_on"] = '["self-hosted", "generic", 20.04]'
+
           # Output the matrix as JSON
           output = json.dumps({"include": matrix})
           with open(os.environ['GITHUB_OUTPUT'], 'a') as f:
@@ -176,7 +229,10 @@ jobs:
 
   build:
     needs: matrix-setup
-    runs-on: [self-hosted, generic, 20.04]
+    runs-on: ${{ fromJSON(matrix.runs_on) }}
+    permissions:
+      id-token: write
+      contents: read
     container:
       image: ubuntu:24.04
       volumes:
@@ -205,7 +261,7 @@ jobs:
           apt-get install -y software-properties-common
           add-apt-repository ppa:ubuntu-toolchain-r/test -y
           apt-get update
-          apt-get install -y python3 python-is-python3 pipx
+          apt-get install -y git python3 python-is-python3 pipx
           pipx ensurepath
           apt-get install -y cmake ninja-build ${{ matrix.cc }} ${{ matrix.cxx }} ccache
           apt-get install -y perl # for openssl build
@@ -276,6 +332,12 @@ jobs:
           pipx install "conan>=2.0,<3"
           echo "$HOME/.local/bin" >> $GITHUB_PATH
 
+          # Install gcovr for coverage jobs
+          if [ "${{ matrix.job_type }}" = "coverage" ]; then
+            pipx install "gcovr>=7,<9"
+            apt-get install -y curl lcov
+          fi
+
       - name: Check environment
         run: |
           echo "PATH:"
@@ -285,6 +347,13 @@ jobs:
           which ${{ matrix.cc }} && ${{ matrix.cc }} --version || echo "${{ matrix.cc }} not found"
           which ${{ matrix.cxx }} && ${{ matrix.cxx }} --version || echo "${{ matrix.cxx }} not found"
           which ccache && ccache --version || echo "ccache not found"
+
+          # Check gcovr for coverage jobs
+          if [ "${{ matrix.job_type }}" = "coverage" ]; then
+            which gcov && gcov --version || echo "gcov not found"
+            which gcovr && gcovr --version || echo "gcovr not found"
+          fi
+
           echo "---- Full Environment ----"
           env
 
@@ -312,6 +381,7 @@ jobs:
           gha_cache_enabled: 'false' # Disable caching for self hosted runner
 
       - name: Build
+        if: matrix.job_type == 'build'
         uses: ./.github/actions/xahau-ga-build
         with:
           generator: Ninja
@@ -326,7 +396,27 @@ jobs:
           clang_gcc_toolchain: ${{ matrix.clang_gcc_toolchain || '' }}
           ccache_max_size: '100G'
 
+      - name: Build (Coverage)
+        if: matrix.job_type == 'coverage'
+        uses: ./.github/actions/xahau-ga-build
+        with:
+          generator: Ninja
+          configuration: ${{ matrix.configuration }}
+          build_dir: ${{ env.build_dir }}
+          cc: ${{ matrix.cc }}
+          cxx: ${{ matrix.cxx }}
+          gcov: ${{ matrix.gcov }}
+          compiler-id: ${{ matrix.compiler_id }}
+          cache_version: ${{ env.CACHE_VERSION }}
+          main_branch: ${{ env.MAIN_BRANCH_NAME }}
+          stdlib: ${{ matrix.stdlib }}
+          # Coverage builds are slower due to instrumentation; use fewer parallel jobs to avoid flakiness
+          cmake-args: '-Dcoverage=ON -Dcoverage_format=xml -Dcoverage_test_parallelism=$(($(nproc)/2)) -DCODE_COVERAGE_VERBOSE=ON -DCMAKE_CXX_FLAGS="-O0" -DCMAKE_C_FLAGS="-O0"'
+          cmake-target: 'coverage'
+          ccache_max_size: '100G'
+
       - name: Set artifact name
+        if: matrix.job_type == 'build'
         id: set-artifact-name
         run: |
           ARTIFACT_NAME="build-output-nix-${{ github.run_id }}-${{ matrix.compiler }}-${{ matrix.configuration }}"
@@ -339,6 +429,7 @@ jobs:
           ls -la ${{ env.build_dir }} || echo "Build directory not found or empty"
 
       - name: Run tests
+        if: matrix.job_type == 'build'
         run: |
           # Ensure the binary exists before trying to run
           if [ -f "${{ env.build_dir }}/rippled" ]; then
@@ -347,3 +438,42 @@ jobs:
              echo "Error: rippled executable not found in ${{ env.build_dir }}"
              exit 1
           fi
+
+      # Coverage-specific steps
+      - name: Move coverage report
+        if: matrix.job_type == 'coverage'
+        shell: bash
+        run: |
+          mv "${{ env.build_dir }}/coverage.xml" ./
+
+      - name: Archive coverage report
+        if: matrix.job_type == 'coverage'
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage.xml
+          path: coverage.xml
+          retention-days: 30
+
+      - name: Upload coverage report
+        if: matrix.job_type == 'coverage'
+        uses: codecov/codecov-action@v5
+        with:
+          files: coverage.xml
+          fail_ci_if_error: true
+          disable_search: true
+          verbose: true
+          plugins: noop
+          use_oidc: true
+
+      - name: Export server definitions
+        if: matrix.job_type == 'build' && matrix.compiler_id == 'gcc-13-libstdcxx'
+        run: |
+          ${{ env.build_dir }}/rippled --definitions | python3 -m json.tool > server_definitions.json
+
+      - name: Upload server definitions
+        if: matrix.job_type == 'build' && matrix.compiler_id == 'gcc-13-libstdcxx'
+        uses: actions/upload-artifact@v7
+        with:
+          name: server-definitions
+          path: server_definitions.json
+          archive: false

.gitignore

@@ -53,6 +53,9 @@ Builds/levelization/results/paths.txt
 Builds/levelization/results/includes/
 Builds/levelization/results/includedby/
 
+# Python
+__pycache__
+
 # Ignore tmp directory.
 tmp
 
@@ -76,6 +79,7 @@ docs/html_doc
 # Xcode
 .DS_Store
 */build/*
+!/docs/build/
 *.pbxuser
 !default.pbxuser
 *.mode1v3

.mise.toml

@@ -1,2 +0,0 @@
-[tools]
-clang-format = "18"

BUILD.md

@@ -10,7 +10,7 @@
 ## Branches
 
 For a stable release, choose the `master` branch or one of the [tagged
-releases](https://github.com/ripple/rippled/releases).
+releases](https://github.com/Xahau/xahaud/releases).
 
 ```
 git checkout master
@@ -39,13 +39,7 @@ Building rippled generally requires git, Python, Conan, CMake, and a C++ compile
 - [Conan 2.x](https://conan.io/downloads)
 - [CMake 3.16](https://cmake.org/download/)
 
-[^1]: It is possible to build with Conan 2.x,
-but the instructions are significantly different,
-which is why we are not recommending it yet.
-Notably, the `conan profile update` command is removed in 2.x.
-Profiles must be edited by hand.
-
-`rippled` is written in the C++20 dialect and includes the `<concepts>` header.
+`xahaud` is written in the C++20 dialect and includes the `<concepts>` header.
 The [minimum compiler versions][2] required are:
 
 | Compiler    | Version |
@@ -64,17 +58,19 @@ Here are [sample instructions for setting up a C++ development environment on Li
 
 ### Mac
 
-Many rippled engineers use macOS for development.
+Many xahaud engineers use macOS for development.
 
 Here are [sample instructions for setting up a C++ development environment on macOS](./docs/build/environment.md#macos).
 
 ### Windows
 
-Windows is not recommended for production use at this time.
+We don't recommend Windows for `xahaud` production at this time. As of
+November 2025, Ubuntu has the highest level of quality assurance, testing,
+and support.
 
-- Additionally, 32-bit Windows development is not supported.
-
-[Boost]: https://www.boost.org/
+Windows developers should use Visual Studio 2019. `xahaud` isn't
+compatible with [Boost](https://www.boost.org/) 1.78 or 1.79, and Conan
+can't build earlier Boost versions.
 
 ## Steps
 
@@ -144,8 +140,8 @@ conan profile show default
 An easy way to do that is to run the shortcut "x64 Native Tools Command
 Prompt" for the version of Visual Studio that you have installed.
 
-   Windows developers must also build `rippled` and its dependencies for the x64
-   architecture:
+   Windows developers must also build `xahaud` and its dependencies for the x64
+   architecture.
 
    ```
    # In ~/.conan2/profiles/default, ensure:
@@ -153,10 +149,7 @@ Prompt" for the version of Visual Studio that you have installed.
    arch=x86_64
    ```
 
-3. (Optional) If you have multiple compilers installed on your platform,
-   make sure that Conan and CMake select the one you want to use.
-   This setting will set the correct variables (`CMAKE_<LANG>_COMPILER`)
-   in the generated CMake toolchain file.
+### Multiple compilers
 
    ```
    # In ~/.conan2/profiles/default, add under [conf] section:
@@ -173,9 +166,17 @@ Prompt" for the version of Visual Studio that you have installed.
    CXX=<path>
    ```
 
-4. Export our [Conan recipe for Snappy](./external/snappy).
-   It doesn't explicitly link the C++ standard library,
-   which allows you to statically link it with GCC, if you want.
+It should choose the compiler for dependencies as well,
+but not all of them have a Conan recipe that respects this setting (yet).
+For the rest, you can set these environment variables.
+Replace `<path>` with paths to the desired compilers:
+
+- `conan profile update env.CC=<path> default`
+- `conan profile update env.CXX=<path> default`
+
+Export our [Conan recipe for Snappy](./external/snappy).
+It does not explicitly link the C++ standard library,
+which allows you to statically link it with GCC, if you want.
 
    ```
    conan export external/snappy --version 1.1.10 --user xahaud --channel stable
@@ -184,6 +185,16 @@ Prompt" for the version of Visual Studio that you have installed.
 Export our [Conan recipe for RocksDB](./external/rocksdb).
 It does not override paths to dependencies when building with Visual Studio.
 
+   ```
+   # Conan 1.x
+   conan export external/rocksdb rocksdb/6.29.5@
+   # Conan 2.x
+   conan export --version 6.29.5 external/rocksdb
+   ```
+
+Export our [Conan recipe for SOCI](./external/soci).
+It patches their CMake to correctly import its dependencies.
+
    ```
    conan export external/soci --version 4.0.3 --user xahaud --channel stable
    ```
@@ -194,6 +205,17 @@ It does not override paths to dependencies when building with Visual Studio.
    conan export external/wasmedge --version 0.11.2 --user xahaud --channel stable
    ```
 
+Export our [Conan recipe for NuDB](./external/nudb).
+It fixes some source files to add missing `#include`s.
+
+
+   ```
+   # Conan 1.x
+   conan export external/nudb nudb/2.0.8@
+   # Conan 2.x
+   conan export --version 2.0.8 external/nudb
+   ```
+
 ### Build and Test
 
 1. Create a build directory and move into it.
@@ -267,13 +289,14 @@ It does not override paths to dependencies when building with Visual Studio.
     cmake -DCMAKE_TOOLCHAIN_FILE:FILEPATH=build/generators/conan_toolchain.cmake -Dxrpld=ON -Dtests=ON  ..
     ```
 
-    **Note:** You can pass build options for `rippled` in this step.
+    **Note:** You can pass build options for `xahaud` in this step.
 
-5. Build `rippled`.
+4. Build `xahaud`.
 
    For a single-configuration generator, it will build whatever configuration
    you passed for `CMAKE_BUILD_TYPE`. For a multi-configuration generator,
    you must pass the option `--config` to select the build configuration. 
+   The output file is currently named 'rippled'.
 
    Single-config generators:
 
@@ -288,7 +311,7 @@ It does not override paths to dependencies when building with Visual Studio.
    cmake --build . --config Debug
    ```
 
-6. Test rippled.
+5. Test xahaud.
 
    Single-config generators:
 
@@ -303,7 +326,7 @@ It does not override paths to dependencies when building with Visual Studio.
    ./Debug/rippled --unittest
    ```
 
-   The location of `rippled` in your build directory depends on your CMake
+   The location of `xahaud` in your build directory depends on your CMake
    generator. Pass `--help` to see the rest of the command line options.
 
 

Builds/levelization/README.md

@@ -50,7 +50,7 @@ that `test` code should *never* be included in `ripple` code.)
 
 ## Validation
 
-The [levelization.sh](levelization.sh) script takes no parameters,
+The [levelization.py](levelization.py) script takes no parameters,
 reads no environment variables, and can be run from any directory,
 as long as it is in the expected location in the rippled repo.
 It can be run at any time from within a checked out repo, and will
@@ -84,7 +84,7 @@ It generates many files of [results](results):
   Github Actions workflow to test that levelization loops haven't
   changed.  Unfortunately, if changes are detected, it can't tell if
   they are improvements or not, so if you have resolved any issues or
-  done anything else to improve levelization, run `levelization.sh`,
+  done anything else to improve levelization, run `levelization.py`,
   and commit the updated results.
 
 The  `loops.txt` and `ordering.txt` files relate the modules
@@ -108,7 +108,7 @@ The committed files hide the detailed values intentionally, to
 prevent false alarms and merging issues, and because it's easy to
 get those details locally.
 
-1. Run `levelization.sh`
+1. Run `levelization.py`
 2. Grep the modules in `paths.txt`.
    * For example, if a cycle is found `A ~= B`, simply `grep -w
      A Builds/levelization/results/paths.txt | grep -w B`

Builds/levelization/levelization.py

@@ -0,0 +1,283 @@
+#!/usr/bin/env python3
+
+"""
+Usage: levelization.py
+This script takes no parameters, and can be called from any directory in the file system.
+"""
+
+import os
+import re
+import sys
+from collections import defaultdict
+from pathlib import Path
+
+# Compile regex patterns once at module level
+INCLUDE_PATTERN = re.compile(r"^\s*#include.*/.*\.h")
+INCLUDE_PATH_PATTERN = re.compile(r'[<"]([^>"]+)[>"]')
+
+
+def dictionary_sort_key(s):
+    """
+    Create a sort key that mimics 'sort -d' (dictionary order).
+    Dictionary order only considers blanks and alphanumeric characters.
+    """
+    return "".join(c for c in s if c.isalnum() or c.isspace())
+
+
+def get_level(file_path):
+    """
+    Extract the level from a file path (second and third directory components).
+    Equivalent to bash: cut -d/ -f 2,3
+
+    Examples:
+        src/ripple/app/main.cpp -> ripple.app
+        src/test/app/Import_test.cpp -> test.app
+    """
+    parts = file_path.split("/")
+
+    if len(parts) >= 3:
+        level = f"{parts[1]}/{parts[2]}"
+    elif len(parts) >= 2:
+        level = f"{parts[1]}/toplevel"
+    else:
+        level = file_path
+
+    # If the "level" indicates a file, cut off the filename
+    if "." in level.split("/")[-1]:
+        # Use the "toplevel" label as a workaround for `sort`
+        # inconsistencies between different utility versions
+        level = level.rsplit("/", 1)[0] + "/toplevel"
+
+    return level.replace("/", ".")
+
+
+def extract_include_level(include_line):
+    """
+    Extract the include path from an #include directive.
+    Gets the first two directory components from the include path.
+    Equivalent to bash: cut -d/ -f 1,2
+
+    Examples:
+        #include <ripple/basics/base_uint.h> -> ripple.basics
+        #include "ripple/app/main/Application.h" -> ripple.app
+    """
+    match = INCLUDE_PATH_PATTERN.search(include_line)
+    if not match:
+        return None
+
+    include_path = match.group(1)
+    parts = include_path.split("/")
+
+    if len(parts) >= 2:
+        include_level = f"{parts[0]}/{parts[1]}"
+    else:
+        include_level = include_path
+
+    # If the "includelevel" indicates a file, cut off the filename
+    if "." in include_level.split("/")[-1]:
+        include_level = include_level.rsplit("/", 1)[0] + "/toplevel"
+
+    return include_level.replace("/", ".")
+
+
+def find_repository_directories(start_path, depth_limit=10):
+    """
+    Find the repository root by looking for src or include folders.
+    Walks up the directory tree from the start path.
+    """
+    current = start_path.resolve()
+
+    for _ in range(depth_limit):
+        src_path = current / "src"
+        include_path = current / "include"
+        has_src = src_path.exists()
+        has_include = include_path.exists()
+
+        if has_src or has_include:
+            dirs = []
+            if has_src:
+                dirs.append(src_path)
+            if has_include:
+                dirs.append(include_path)
+            return current, dirs
+
+        parent = current.parent
+        if parent == current:
+            break
+        current = parent
+
+    raise RuntimeError(
+        "Could not find repository root. "
+        "Expected to find a directory containing 'src' and/or 'include' folders."
+    )
+
+
+def main():
+    script_dir = Path(__file__).parent.resolve()
+    os.chdir(script_dir)
+
+    # Clean up and create results directory.
+    results_dir = script_dir / "results"
+    if results_dir.exists():
+        import shutil
+
+        shutil.rmtree(results_dir)
+    results_dir.mkdir()
+
+    # Find the repository root.
+    try:
+        repo_root, scan_dirs = find_repository_directories(script_dir)
+        print(f"Found repository root: {repo_root}")
+        for scan_dir in scan_dirs:
+            print(f"  Scanning: {scan_dir.relative_to(repo_root)}")
+    except RuntimeError as e:
+        print(f"Error: {e}", file=sys.stderr)
+        sys.exit(1)
+
+    # Find all #include directives.
+    print("\nScanning for raw includes...")
+    raw_includes = []
+    rawincludes_file = results_dir / "rawincludes.txt"
+
+    with open(rawincludes_file, "w", buffering=8192) as raw_f:
+        for dir_path in scan_dirs:
+            for file_path in dir_path.rglob("*"):
+                if not file_path.is_file():
+                    continue
+                try:
+                    rel_path_str = str(file_path.relative_to(repo_root))
+                    with open(
+                        file_path, "r", encoding="utf-8", errors="ignore", buffering=8192
+                    ) as f:
+                        for line in f:
+                            if "#include" not in line or "boost" in line:
+                                continue
+                            if INCLUDE_PATTERN.match(line):
+                                line_stripped = line.strip()
+                                entry = f"{rel_path_str}:{line_stripped}\n"
+                                print(entry, end="")
+                                raw_f.write(entry)
+                                raw_includes.append((rel_path_str, line_stripped))
+                except Exception as e:
+                    print(f"Error reading {file_path}: {e}", file=sys.stderr)
+
+    # Build levelization paths and count directly.
+    print("Build levelization paths")
+    path_counts = defaultdict(int)
+
+    for file_path, include_line in raw_includes:
+        include_level = extract_include_level(include_line)
+        if not include_level:
+            continue
+        level = get_level(file_path)
+        if level != include_level:
+            path_counts[(level, include_level)] += 1
+
+    # Sort and deduplicate paths.
+    print("Sort and deduplicate paths")
+    sorted_items = sorted(
+        path_counts.items(),
+        key=lambda x: (dictionary_sort_key(x[0][0]), dictionary_sort_key(x[0][1])),
+    )
+
+    paths_file = results_dir / "paths.txt"
+    with open(paths_file, "w") as f:
+        for (level, include_level), count in sorted_items:
+            line = f"{count:7} {level} {include_level}\n"
+            print(line.rstrip())
+            f.write(line)
+
+    # Split into flat-file database.
+    print("Split into flat-file database")
+    includes_dir = results_dir / "includes"
+    includedby_dir = results_dir / "includedby"
+    includes_dir.mkdir()
+    includedby_dir.mkdir()
+
+    includes_data = defaultdict(list)
+    includedby_data = defaultdict(list)
+
+    for (level, include_level), count in sorted_items:
+        includes_data[level].append((include_level, count))
+        includedby_data[include_level].append((level, count))
+
+    for level in sorted(includes_data.keys(), key=dictionary_sort_key):
+        with open(includes_dir / level, "w") as f:
+            for include_level, count in includes_data[level]:
+                line = f"{include_level} {count}\n"
+                print(line.rstrip())
+                f.write(line)
+
+    for include_level in sorted(includedby_data.keys(), key=dictionary_sort_key):
+        with open(includedby_dir / include_level, "w") as f:
+            for level, count in includedby_data[include_level]:
+                line = f"{level} {count}\n"
+                print(line.rstrip())
+                f.write(line)
+
+    # Search for loops.
+    print("Search for loops")
+    loops_file = results_dir / "loops.txt"
+    ordering_file = results_dir / "ordering.txt"
+
+    # Pre-load all include files into memory for fast lookup.
+    includes_cache = {}
+    includes_lookup = {}
+
+    for include_file in sorted(includes_dir.iterdir(), key=lambda p: p.name):
+        if not include_file.is_file():
+            continue
+        includes_cache[include_file.name] = []
+        includes_lookup[include_file.name] = {}
+        with open(include_file, "r") as f:
+            for line in f:
+                parts = line.strip().split()
+                if len(parts) >= 2:
+                    name, count = parts[0], int(parts[1])
+                    includes_cache[include_file.name].append((name, count))
+                    includes_lookup[include_file.name][name] = count
+
+    loops_found = set()
+
+    with open(loops_file, "w", buffering=8192) as loops_f, open(
+        ordering_file, "w", buffering=8192
+    ) as ordering_f:
+        for source in sorted(includes_cache.keys()):
+            for include, include_freq in includes_cache[source]:
+                if include not in includes_lookup:
+                    continue
+
+                source_freq = includes_lookup[include].get(source)
+
+                if source_freq is not None:
+                    loop_key = tuple(sorted([source, include]))
+                    if loop_key in loops_found:
+                        continue
+                    loops_found.add(loop_key)
+
+                    loops_f.write(f"Loop: {source} {include}\n")
+
+                    diff = include_freq - source_freq
+                    if diff > 3:
+                        loops_f.write(f"  {source} > {include}\n\n")
+                    elif diff < -3:
+                        loops_f.write(f"  {include} > {source}\n\n")
+                    elif source_freq == include_freq:
+                        loops_f.write(f"  {include} == {source}\n\n")
+                    else:
+                        loops_f.write(f"  {include} ~= {source}\n\n")
+                else:
+                    ordering_f.write(f"{source} > {include}\n")
+
+    # Print results.
+    print("\nOrdering:")
+    with open(ordering_file, "r") as f:
+        print(f.read(), end="")
+
+    print("\nLoops:")
+    with open(loops_file, "r") as f:
+        print(f.read(), end="")
+
+
+if __name__ == "__main__":
+    main()

Builds/levelization/levelization.sh

@@ -1,130 +0,0 @@
-#!/bin/bash
-
-# Usage: levelization.sh
-# This script takes no parameters, reads no environment variables,
-# and can be run from any directory, as long as it is in the expected
-# location in the repo.
-
-pushd $( dirname $0 )
-
-if [ -v PS1 ]
-then
-  # if the shell is interactive, clean up any flotsam before analyzing
-  git clean -ix
-fi
-
-# Ensure all sorting is ASCII-order consistently across platforms.
-export LANG=C
-
-rm -rfv results
-mkdir results
-includes="$( pwd )/results/rawincludes.txt"
-pushd ../..
-echo Raw includes:
-grep -r '^[ ]*#include.*/.*\.h' include src | \
-    grep -v boost | tee ${includes}
-popd
-pushd results
-
-oldifs=${IFS}
-IFS=:
-mkdir includes
-mkdir includedby
-echo Build levelization paths
-exec 3< ${includes} # open rawincludes.txt for input
-while read -r -u 3 file include
-do
-    level=$( echo ${file} | cut -d/ -f 2,3 )
-    # If the "level" indicates a file, cut off the filename
-    if [[ "${level##*.}" != "${level}" ]]
-    then
-        # Use the "toplevel" label as a workaround for `sort`
-        # inconsistencies between different utility versions
-        level="$( dirname ${level} )/toplevel"
-    fi
-    level=$( echo ${level} | tr '/' '.' )
-
-    includelevel=$( echo ${include} | sed 's/.*["<]//; s/[">].*//' | \
-        cut -d/ -f 1,2 )
-    if [[ "${includelevel##*.}" != "${includelevel}" ]]
-    then
-        # Use the "toplevel" label as a workaround for `sort`
-        # inconsistencies between different utility versions
-        includelevel="$( dirname ${includelevel} )/toplevel"
-    fi
-    includelevel=$( echo ${includelevel} | tr '/' '.' )
-
-    if [[ "$level" != "$includelevel" ]]
-    then
-        echo $level $includelevel | tee -a paths.txt
-    fi
-done
-echo Sort and dedup paths
-sort -ds paths.txt | uniq -c | tee sortedpaths.txt
-mv sortedpaths.txt paths.txt
-exec 3>&- #close fd 3
-IFS=${oldifs}
-unset oldifs
-
-echo Split into flat-file database
-exec 4<paths.txt # open paths.txt for input
-while read -r -u 4 count level include
-do
-    echo ${include} ${count} | tee -a includes/${level}
-    echo ${level} ${count} | tee -a includedby/${include}
-done
-exec 4>&- #close fd 4
-
-loops="$( pwd )/loops.txt"
-ordering="$( pwd )/ordering.txt"
-pushd includes
-echo Search for loops
-# Redirect stdout to a file
-exec 4>&1
-exec 1>"${loops}"
-for source in *
-do
-  if [[ -f "$source" ]]
-  then
-    exec 5<"${source}" # open for input
-    while read -r -u 5 include includefreq
-    do
-      if [[ -f $include ]]
-      then
-        if grep -q -w $source $include
-        then
-          if grep -q -w "Loop: $include $source" "${loops}"
-          then
-            continue
-          fi
-          sourcefreq=$( grep -w $source $include | cut -d\  -f2 )
-          echo "Loop: $source $include"
-          # If the counts are close, indicate that the two modules are
-          # on the same level, though they shouldn't be
-          if [[ $(( $includefreq - $sourcefreq )) -gt 3 ]]
-          then
-              echo -e "  $source > $include\n"
-          elif [[ $(( $sourcefreq - $includefreq )) -gt 3 ]]
-          then
-              echo -e "  $include > $source\n"
-          elif [[ $sourcefreq -eq $includefreq ]]
-          then
-              echo -e "  $include == $source\n"
-          else
-              echo -e "  $include ~= $source\n"
-          fi
-        else
-          echo "$source > $include" >> "${ordering}"
-        fi
-      fi
-    done
-    exec 5>&- #close fd 5
-  fi
-done
-exec 1>&4 #close fd 1
-exec 4>&- #close fd 4
-cat "${ordering}"
-cat "${loops}"
-popd
-popd
-popd

Builds/levelization/results/loops.txt

@@ -10,9 +10,6 @@ Loop: test.jtx test.toplevel
 Loop: test.jtx test.unit_test
   test.unit_test == test.jtx
 
-Loop: xrpl.hook xrpld.app
-  xrpld.app > xrpl.hook
-
 Loop: xrpl.protocol xrpld.app
   xrpld.app > xrpl.protocol
 

Builds/levelization/results/ordering.txt

@@ -77,6 +77,11 @@ test.ledger > xrpld.app
 test.ledger > xrpld.core
 test.ledger > xrpld.ledger
 test.ledger > xrpl.protocol
+test.net > test.toplevel
+test.net > xrpl.basics
+test.net > xrpld.core
+test.net > xrpld.net
+test.net > xrpl.json
 test.nodestore > test.jtx
 test.nodestore > test.toplevel
 test.nodestore > test.unit_test
@@ -84,6 +89,7 @@ test.nodestore > xrpl.basics
 test.nodestore > xrpld.core
 test.nodestore > xrpld.nodestore
 test.nodestore > xrpld.unity
+test.nodestore > xrpl.protocol
 test.overlay > test.jtx
 test.overlay > test.toplevel
 test.overlay > test.unit_test
@@ -118,6 +124,7 @@ test.rpc > xrpld.core
 test.rpc > xrpld.net
 test.rpc > xrpld.overlay
 test.rpc > xrpld.rpc
+test.rpc > xrpld.shamap
 test.rpc > xrpl.hook
 test.rpc > xrpl.json
 test.rpc > xrpl.protocol
@@ -155,6 +162,7 @@ xrpld.app > xrpl.basics
 xrpld.app > xrpld.conditions
 xrpld.app > xrpld.consensus
 xrpld.app > xrpld.perflog
+xrpld.app > xrpl.hook
 xrpld.app > xrpl.json
 xrpld.app > xrpl.resource
 xrpld.conditions > xrpl.basics
@@ -197,6 +205,7 @@ xrpld.rpc > xrpld.core
 xrpld.rpc > xrpld.ledger
 xrpld.rpc > xrpld.nodestore
 xrpld.rpc > xrpld.shamap
+xrpld.rpc > xrpl.hook
 xrpld.rpc > xrpl.json
 xrpld.rpc > xrpl.protocol
 xrpld.rpc > xrpl.resource

CMakeLists.txt

@@ -109,7 +109,7 @@ find_package(lz4 REQUIRED)
 find_package(LibArchive REQUIRED)
 find_package(SOCI REQUIRED)
 find_package(SQLite3 REQUIRED)
-include(deps/WasmEdge)
+
 option(rocksdb "Enable RocksDB" ON)
 if(rocksdb)
   find_package(RocksDB REQUIRED)
@@ -118,9 +118,13 @@ if(rocksdb)
   )
   target_link_libraries(ripple_libs INTERFACE RocksDB::rocksdb)
 endif()
+
 find_package(nudb REQUIRED)
 find_package(date REQUIRED)
 find_package(xxHash REQUIRED)
+find_package(magic_enum REQUIRED)
+
+include(deps/WasmEdge) 
   if(TARGET nudb::core)
   set(nudb nudb::core)
 elseif(TARGET NuDB::nudb)
@@ -132,11 +136,10 @@ target_link_libraries(ripple_libs INTERFACE ${nudb})
 
 target_link_libraries(ripple_libs INTERFACE
   ed25519::ed25519
+  LibArchive::LibArchive
   lz4::lz4
   OpenSSL::Crypto
   OpenSSL::SSL
-  # Ripple::grpc_pbufs
-  # Ripple::pbufs
   secp256k1::secp256k1
   soci::soci
   SQLite::SQLite3

CONTRIBUTING.md

@@ -57,12 +57,12 @@ Ensure that your code compiles according to the build instructions in the
 [`documentation`](https://docs.xahau.network/infrastructure/building-xahau).
 If you create new source files, they must go under `src/ripple`.
 You will need to add them to one of the
-[source lists](./cmake/RippledCore.cmake) in CMake.
+[source lists](./Builds/CMake/RippledCore.cmake) in CMake.
 
 Please write tests for your code.
 If you create new test source files, they must go under `src/test`.
 You will need to add them to one of the
-[source lists](./cmake/RippledCore.cmake) in CMake.
+[source lists](./Builds/CMake/RippledCore.cmake) in CMake.
 If your test can be run offline, in under 60 seconds, then it can be an
 automatic test run by `rippled --unittest`.
 Otherwise, it must be a manual test.

README.md

@@ -12,7 +12,7 @@ The server software that powers Xahau is called `xahaud` and is available in thi
 
 ### Build from Source
 
-* [Read the build instructions in our documentation](https://xahau.network/infrastructure/building-xahau)
+* [Read the build instructions in our documentation](https://xahau.network/docs/infrastructure/build-xahaud/)
 * If you encounter any issues, please [open an issue](https://github.com/xahau/xahaud/issues)
 
 ## Highlights of Xahau

bin/physical.sh

@@ -2,7 +2,7 @@
 
 set -o errexit
 
-marker_base=34be0ce4fef20c978df2923c29321ad6cc17facc
+marker_base=f62f74da10c5936c64bd16cd509a8b68f1464e41
 marker_commit=${1:-${marker_base}}
 
 if [ $(git merge-base ${marker_commit} ${marker_base}) != ${marker_base} ]; then

build-core.sh

@@ -51,10 +51,9 @@ export CMAKE_STATIC_LINKER_FLAGS="-static-libstdc++"
 
 git config --global --add safe.directory /io &&
 git checkout src/libxrpl/protocol/BuildInfo.cpp &&
-sed -i s/\"0.0.0\"/\"$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)$(if [ -n "$4" ]; then echo "+$4"; fi)\"/g src/libxrpl/protocol/BuildInfo.cpp &&
+sed -i s/\"0.0.0\"/\"$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)$(if [ -n "$4" ]; then echo "+$4"; fi)\"/g src/libxrpl/protocol/BuildInfo.cpp  &&
 conan export external/snappy --version 1.1.10 --user xahaud --channel stable &&
 conan export external/soci --version 4.0.3 --user xahaud --channel stable &&
-conan export external/wasmedge --version 0.11.2 --user xahaud --channel stable &&
 cd release-build &&
 # Install dependencies - tool_requires in conanfile.py handles glibc 2.28 compatibility
 # for build tools (protoc, grpc plugins, b2) in HBB environment
@@ -72,6 +71,7 @@ cmake .. -G Ninja \
   -Dxrpld=TRUE \
   -Dtests=TRUE &&
 ccache -z &&
+ccache -p &&
 ninja -j $3 && echo "=== Re-running final link with verbose output ===" && rm -f rippled && ninja -v rippled &&
 ccache -s &&
 strip -s rippled &&
@@ -95,8 +95,16 @@ if [[ "$4" == "" ]]; then
   echo "Non GH, local building, no Action runner magic"
 else
   # GH Action, runner
-  cp /io/release-build/xahaud /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
-  cp /io/release-build/release.info /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4.releaseinfo
+    if [[ "$(git rev-parse --abbrev-ref HEAD)" == "release" ]]; then
+        echo "building on the release branch... placing it in builds/candidate"
+        mkdir /data/builds/candidate
+        cp /io/release-build/xahaud /data/builds/candidate/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
+        cp /io/release-build/release.info /data/builds/candidate/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4.releaseinfo
+    else
+        echo "building non-release branch, placing it in builds root"
+        cp /io/release-build/xahaud /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
+        cp /io/release-build/release.info /data/builds/$(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4.releaseinfo
+    fi  
   echo "Published build to: http://build.xahau.tech/"
   echo $(date +%Y).$(date +%-m).$(date +%-d)-$(git rev-parse --abbrev-ref HEAD)+$4
 fi

build-full.sh

@@ -12,17 +12,16 @@ echo "-- GITHUB_REPOSITORY: $1"
 echo "-- GITHUB_SHA:        $2"
 echo "-- GITHUB_RUN_NUMBER: $4"
 
-umask 0000;
+umask 0000
 
 ####
 
-cd /io;
-mkdir -p src/certs;
-curl --silent -k https://raw.githubusercontent.com/RichardAH/rippled-release-builder/main/ca-bundle/certbundle.h -o src/certs/certbundle.h;
-if [ "`grep certbundle.h src/xrpld/net/detail/RegisterSSLCerts.cpp | wc -l`" -eq "0" ]
-then
-    cp src/xrpld/net/detail/RegisterSSLCerts.cpp src/xrpld/net/detail/RegisterSSLCerts.cpp.old
-    perl -i -pe "s/^{/{
+cd /io
+mkdir -p src/certs
+curl --silent -k https://raw.githubusercontent.com/RichardAH/rippled-release-builder/main/ca-bundle/certbundle.h -o src/certs/certbundle.h
+if [ "$(grep certbundle.h src/xrpld/net/detail/RegisterSSLCerts.cpp | wc -l)" -eq "0" ]; then
+  cp src/xrpld/net/detail/RegisterSSLCerts.cpp src/xrpld/net/detail/RegisterSSLCerts.cpp.old
+  perl -i -pe "s/^{/{
     #ifdef EMBEDDED_CA_BUNDLE
     BIO *cbio = BIO_new_mem_buf(ca_bundle.data(), ca_bundle.size());
     X509_STORE  *cts = SSL_CTX_get_cert_store(ctx.native_handle());
@@ -68,15 +67,14 @@ fi
 source /opt/rh/gcc-toolset-11/enable
 export PATH=/usr/local/bin:$PATH
 export CC='/usr/lib64/ccache/gcc' &&
-export CXX='/usr/lib64/ccache/g++' &&
-echo "-- Build Rippled --" &&
-pwd &&
+  export CXX='/usr/lib64/ccache/g++' &&
+  echo "-- Build Rippled --" &&
+  pwd &&
+  echo "MOVING TO [ build-core.sh ]"
 
-echo "MOVING TO [ build-core.sh ]";
-
-printenv > .env.temp;
-cat .env.temp | grep '=' | sed s/\\\(^[^=]\\+=\\\)/\\1\\\"/g|sed s/\$/\\\"/g > .env;
-rm .env.temp;
+printenv >.env.temp
+cat .env.temp | grep '=' | sed s/\\\(^[^=]\\+=\\\)/\\1\\\"/g | sed s/\$/\\\"/g >.env
+rm .env.temp
 
 echo "Persisting ENV:"
 cat .env

cfg/xahaud-example.cfg

@@ -394,7 +394,7 @@
 #   true - enables compression
 #   false - disables compression [default].
 #
-#   The xahaud server can save bandwidth by compressing its peer-to-peer communications, 
+#   The rippled server can save bandwidth by compressing its peer-to-peer communications, 
 #   at a cost of greater CPU usage. If you enable link compression, 
 #   the server automatically compresses communications with peer servers
 #   that also have link compression enabled.
@@ -477,11 +477,24 @@
 #
 #
 #
+# [sntp_servers]
+#
+#   IP address or domain of NTP servers to use for time synchronization.
+#
+#   These NTP servers are suitable for xahaud servers located in the United
+#   States:
+#      time.windows.com
+#      time.apple.com
+#      time.nist.gov
+#      pool.ntp.org
+#
+#
+#
 # [max_transactions]
 #
 #   Configure the maximum number of transactions to have in the job queue
 #
-#   Must be a number between 100 and 1000, defaults to 250
+#   Must be a number between 100 and 1000, defaults to 1000
 #
 #
 # [overlay]
@@ -580,7 +593,7 @@
 #       reaches or exceeds this number. After that the limit may still
 #       change, but will stay above the target. If consensus is not
 #       healthy, the limit will be clamped to this value or lower.
-#       Default: 50.
+#       Default: 1000.
 #
 #   maximum_txn_in_ledger = <number>
 #
@@ -941,6 +954,12 @@
 #
 #       path                Location to store the database
 #
+#   Required keys for RWDB:
+#
+#       online_delete       Required. RWDB stores data in memory and will
+#                           grow unbounded without online_delete. See the
+#                           online_delete section below.
+#
 #   Optional keys
 #
 #       cache_size          Size of cache for database records. Default is 16384.
@@ -1431,7 +1450,7 @@
 #
 #       ETL commands for Clio. We recommend setting secure_gateway
 #       in this section to a comma-separated list of the addresses
-#       of your Clio servers, in order to bypass xahaud's rate limiting.
+#       of your Clio servers, in order to bypass rippled's rate limiting.
 #
 #   This port is commented out but can be enabled by removing
 #   the '#' from each corresponding line including the entry under [server]
@@ -1505,10 +1524,13 @@ secure_gateway = 127.0.0.1
 #    when the node has approximately two times the "online_delete" value of
 #    ledgers. No external administrative command is required to initiate
 #    deletion.
+[ledger_history]
+256
+
 [node_db]
 type=NuDB
 path=/opt/xahaud/db/nudb
-online_delete=512
+online_delete=256
 advisory_delete=0
 
 [database_path]
@@ -1520,7 +1542,18 @@ advisory_delete=0
 [debug_logfile]
 /var/log/xahaud/debug.log
 
-# To use the Xahau test network
+[sntp_servers]
+time.windows.com
+time.apple.com
+time.nist.gov
+pool.ntp.org
+
+# Use the following [ips] section for the main network:
+[ips]
+bacab.alloy.ee 21337
+hubs.xahau.as16089.net 21337
+
+# To use the Xahau Test Network
 # (see https://xahau.network/docs/infrastructure/installing-xahaud),
 # use the following [ips] section:
 # [ips]
@@ -1546,3 +1579,10 @@ validators-xahau.txt
 # set to ssl_verify to 0.
 [ssl_verify]
 1
+
+# Define which network xahaud is connecting to
+# 21337 for the Main Xahau Network
+# 21338 for the Test Xahau Network
+[network_id]
+21337
+# 21338

cfg/xahaud-standalone.cfg

@@ -146,8 +146,6 @@ D686F2538F410C9D0D856788E98E3579595DAF7B38D38887F81ECAC934B06040 HooksUpdate1
 3C43D9A973AA4443EF3FC38E42DD306160FBFFDAB901CD8BAA15D09F2597EB87 NonFungibleTokensV1
 0285B7E5E08E1A8E4C15636F0591D87F73CB6A7B6452A932AD72BBC8E5D1CBE3 fixNFTokenDirV1
 36799EA497B1369B170805C078AEFE6188345F9B3E324C21E9CA3FF574E3C3D6 fixNFTokenNegOffer
-4C499D17719BB365B69010A436B64FD1A82AAB199FC1CEB06962EBD01059FB09 fixXahauV1
-215181D23BF5C173314B5FDB9C872C92DE6CC918483727DE037C0C13E7E6EE9D fixXahauV2
 0D8BF22FF7570D58598D1EF19EBB6E142AD46E59A223FD3816262FBB69345BEA Remit
 7CA0426E7F411D39BB014E57CD9E08F61DE1750F0D41FCD428D9FB80BB7596B0 ZeroB2M
 4B8466415FAB32FFA89D9DCBE166A42340115771DF611A7160F8D7439C87ECD8 fixNSDelete

cmake/CodeCoverage.cmake

@@ -95,6 +95,9 @@
 #     - replace both functions setup_target_for_coverage_gcovr_* with a single setup_target_for_coverage_gcovr
 #     - add support for all gcovr output formats
 #
+# 2024-04-03, Bronek Kozicki
+#     - add support for output formats: jacoco, clover, lcov
+#
 # USAGE:
 #
 # 1. Copy this file into your cmake modules path.
@@ -256,10 +259,10 @@ endif()
 #     BASE_DIRECTORY "../"                   # Base directory for report
 #                                            #  (defaults to PROJECT_SOURCE_DIR)
 #     FORMAT "cobertura"                     # Output format, one of:
-#                                            #  xml cobertura sonarqube json-summary
-#                                            #  json-details coveralls csv txt
-#                                            #  html-single html-nested html-details
-#                                            #  (xml is an alias to cobertura;
+#                                            #  xml cobertura sonarqube jacoco clover
+#                                            #  json-summary json-details coveralls csv
+#                                            #  txt html-single html-nested html-details
+#                                            #  lcov (xml is an alias to cobertura;
 #                                            #  if no format is set, defaults to xml)
 #     EXCLUDE "src/dir1/*" "src/dir2/*"      # Patterns to exclude (can be relative
 #                                            #  to BASE_DIRECTORY, with CMake 3.4+)
@@ -308,6 +311,8 @@ function(setup_target_for_coverage_gcovr)
             set(GCOVR_OUTPUT_FILE ${Coverage_NAME}.txt)
         elseif(Coverage_FORMAT STREQUAL "csv")
             set(GCOVR_OUTPUT_FILE ${Coverage_NAME}.csv)
+        elseif(Coverage_FORMAT STREQUAL "lcov")
+            set(GCOVR_OUTPUT_FILE ${Coverage_NAME}.lcov)
         else()
             set(GCOVR_OUTPUT_FILE ${Coverage_NAME}.xml)
         endif()
@@ -320,6 +325,14 @@ function(setup_target_for_coverage_gcovr)
         set(Coverage_FORMAT cobertura) # overwrite xml
     elseif(Coverage_FORMAT STREQUAL "sonarqube")
         list(APPEND GCOVR_ADDITIONAL_ARGS --sonarqube "${GCOVR_OUTPUT_FILE}" )
+    elseif(Coverage_FORMAT STREQUAL "jacoco")
+        list(APPEND GCOVR_ADDITIONAL_ARGS --jacoco "${GCOVR_OUTPUT_FILE}" )
+        list(APPEND GCOVR_ADDITIONAL_ARGS --jacoco-pretty )
+    elseif(Coverage_FORMAT STREQUAL "clover")
+        list(APPEND GCOVR_ADDITIONAL_ARGS --clover "${GCOVR_OUTPUT_FILE}" )
+        list(APPEND GCOVR_ADDITIONAL_ARGS --clover-pretty )
+    elseif(Coverage_FORMAT STREQUAL "lcov")
+        list(APPEND GCOVR_ADDITIONAL_ARGS --lcov "${GCOVR_OUTPUT_FILE}" )
     elseif(Coverage_FORMAT STREQUAL "json-summary")
         list(APPEND GCOVR_ADDITIONAL_ARGS --json-summary "${GCOVR_OUTPUT_FILE}" )
         list(APPEND GCOVR_ADDITIONAL_ARGS --json-summary-pretty)
@@ -380,6 +393,7 @@ function(setup_target_for_coverage_gcovr)
         ${GCOVR_PATH}
         --gcov-executable ${GCOV_TOOL}
         --gcov-ignore-parse-errors=negative_hits.warn_once_per_file
+        --gcov-ignore-parse-errors=suspicious_hits.warn_once_per_file
         -r ${BASEDIR}
         ${GCOVR_ADDITIONAL_ARGS}
         ${GCOVR_EXCLUDE_ARGS}

cmake/RippledCore.cmake

@@ -54,6 +54,7 @@ add_library(xrpl.imports.main INTERFACE)
 target_link_libraries(xrpl.imports.main
   INTERFACE
     LibArchive::LibArchive
+    magic_enum::magic_enum
     OpenSSL::Crypto
     Ripple::boost
     wasmedge::wasmedge
@@ -68,6 +69,17 @@ target_link_libraries(xrpl.imports.main
     $<$<BOOL:${voidstar}>:antithesis-sdk-cpp>
 )
 
+# date-tz for enhanced logging (always linked, code is #ifdef guarded)
+if(TARGET date::date-tz)
+  target_link_libraries(xrpl.imports.main INTERFACE date::date-tz)
+endif()
+
+# BEAST_ENHANCED_LOGGING: enable for Debug builds OR when explicitly requested
+# Uses generator expression so it works with multi-config generators (Xcode, VS, Ninja Multi-Config)
+target_compile_definitions(xrpl.imports.main INTERFACE
+  $<$<OR:$<CONFIG:Debug>,$<BOOL:${BEAST_ENHANCED_LOGGING}>>:BEAST_ENHANCED_LOGGING=1>
+)
+
 include(add_module)
 include(target_link_modules)
 
@@ -78,12 +90,6 @@ target_link_libraries(xrpl.libxrpl.beast PUBLIC
   xrpl.libpb
 )
 
-# Conditionally add enhanced logging source when BEAST_ENHANCED_LOGGING is enabled
-if(DEFINED BEAST_ENHANCED_LOGGING AND BEAST_ENHANCED_LOGGING)
-  target_sources(xrpl.libxrpl.beast PRIVATE
-    src/libxrpl/beast/utility/src/beast_EnhancedLogging.cpp)
-endif()
-
 # Level 02
 add_module(xrpl basics)
 target_link_libraries(xrpl.libxrpl.basics PUBLIC xrpl.libxrpl.beast)

cmake/deps/Boost.cmake

@@ -1,4 +1,4 @@
-find_package(Boost 1.83 REQUIRED
+find_package(Boost 1.86 REQUIRED
   COMPONENTS
     chrono
     container
@@ -7,6 +7,7 @@ find_package(Boost 1.83 REQUIRED
     date_time
     filesystem
     json
+    json
     program_options
     regex
     system
@@ -31,7 +32,6 @@ target_link_libraries(ripple_boost
     Boost::date_time
     Boost::filesystem
     Boost::json
-    Boost::iostreams
     Boost::program_options
     Boost::regex
     Boost::system

cmake/soci_patch.cmake

@@ -8,7 +8,7 @@
 # those warnings.
 if (RIPPLED_SOURCE)
   execute_process( COMMAND ${CMAKE_COMMAND} -E copy_if_different
-      ${RIPPLED_SOURCE}/cmake/SociConfig.cmake.patched
+      ${RIPPLED_SOURCE}/Builds/CMake/SociConfig.cmake.patched
       cmake/SociConfig.cmake )
 endif ()
 

conanfile.py

@@ -29,6 +29,7 @@ class Xrpl(ConanFile):
         'date/3.0.3',
         'grpc/1.50.1',
         'libarchive/3.7.6',
+        'magic_enum/0.9.5',
         'nudb/2.0.8',
         'openssl/3.6.0',
         'soci/4.0.3@xahaud/stable',
@@ -50,9 +51,9 @@ class Xrpl(ConanFile):
         'static': True,
         'tests': False,
         'unity': False,
+        'xrpld': False,
         'with_wasmedge': True,
         'tool_requires_b2': False,
-        'xrpld': False,
 
         'date/*:header_only': False,
         'grpc/*:shared': False,
@@ -99,6 +100,7 @@ class Xrpl(ConanFile):
             self.version = match.group(1)
 
     def build_requirements(self):
+        # These provide build tools (protoc, grpc plugins) that run during build
         self.tool_requires('grpc/1.50.1')
         # Explicitly require b2 (e.g. for building from source for glibc compatibility)
         if self.options.tool_requires_b2:
@@ -109,14 +111,13 @@ class Xrpl(ConanFile):
             self.options['boost/*'].visibility = 'global'
 
     def requirements(self):
-        # Force boost version for all dependencies to avoid conflicts
-        self.requires('boost/1.86.0', override=True)
-        self.requires('lz4/1.10.0', force=True)
-        self.requires('protobuf/3.21.9', force=True)
         # Force sqlite3 version to avoid conflicts with soci
         self.requires('sqlite3/3.47.0', override=True)
         # Force our custom snappy build for all dependencies
         self.requires('snappy/1.1.10@xahaud/stable', override=True)
+        # Force boost version for all dependencies to avoid conflicts
+        self.requires('boost/1.86.0', override=True)
+        self.requires('lz4/1.10.0', force=True)
 
         if self.options.with_wasmedge:
             self.requires('wasmedge/0.11.2@xahaud/stable')

docs/build/environment.md

@@ -11,11 +11,11 @@ platforms: Linux, macOS, or Windows.
 Package ecosystems vary across Linux distributions,
 so there is no one set of instructions that will work for every Linux user.
 These instructions are written for Ubuntu 22.04.
-They are largely copied from the [script][1] used to configure our Docker
+They are largely copied from the [script][1] used to configure a Docker
 container for continuous integration.
 That script handles many more responsibilities.
 These instructions are just the bare minimum to build one configuration of
-rippled.
+xahaud.
 You can check that codebase for other Linux distributions and versions.
 If you cannot find yours there,
 then we hope that these instructions can at least guide you in the right

docs/build/install.md

@@ -1,159 +1,30 @@
-This document contains instructions for installing rippled.
-The APT package manager is common on Debian-based Linux distributions like
-Ubuntu,
-while the YUM package manager is common on Red Hat-based Linux distributions
-like CentOS.
-Installing from source is an option for all platforms,
-and the only supported option for installing custom builds.
+Comprehensive instructions for installing and running xahaud are available on the [https://Xahau.Network](https://xahau.network/docs/infrastructure/installing-xahaud) documentation website.
 
+## Create the Runtime Environment
+xahaud can be [built from source](../../BUILD.md) or installed using the binary files available from [https://build.xahau.tech](https://build.xahau.tech/). After obtaining a working xahaud binary, users will need to provide a suitable runtime environment. The following setup can be used for Linux or Docker environments.
 
-## From source
-
-From a source build, you can install rippled and libxrpl using CMake's
-`--install` mode:
+1. Create or download two configuration files: the main xahaud.cfg configuration file and a second validators-xahau.txt file defining which validators or UNL list publishers are trusted. The default location for these files in this xahaud repository is `cfg/`.
+2. Provide a directory structure that is congruent with the contents of xahaud.cfg. This will include a location for logfiles, such as `/var/log/xahaud/`, as well as database files, `/opt/xahaud/db/`. Configuration files are, by default, sourced from `/etc/xahaud/`. It is possible to provide a symbolic link, if users wish to store configuration files elsewhere.
+3. If desired, created a xahaud user and group, and change ownership of the binary and directories. Servers used for validating nodes should use the most restrictive permissions possible for `xahaud.cfg`, as the validation token is stored therein.
+4. If desired, create a systemd service file: `/etc/systemd/system/xahaud.service`, enabling xahaud to run as a daemon. Alternately, run: `/path/to/binary/xahaud --conf=/path/to/xahaud.cfg`.
 
+## Example systemd Service File
 ```
-cmake --install . --prefix /opt/local
+[Unit]
+Description=Xahaud Daemon
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+ExecStart=/path/to/xahaud --silent --conf /path/to/xahaud.cfg
+Restart=on-failure
+User=xahaud
+Group=xahaud
+LimitNOFILE=65536
+
+[Install]
+WantedBy=multi-user.target
 ```
 
-The default [prefix][1] is typically `/usr/local` on Linux and macOS and
-`C:/Program Files/rippled` on Windows.
-
-[1]: https://cmake.org/cmake/help/latest/variable/CMAKE_INSTALL_PREFIX.html
-
-
-## With the APT package manager
-
-1. Update repositories:
-
-        sudo apt update -y
-
-2. Install utilities:
-
-        sudo apt install -y apt-transport-https ca-certificates wget gnupg
-
-3. Add Ripple's package-signing GPG key to your list of trusted keys:
-
-        sudo mkdir /usr/local/share/keyrings/
-        wget -q -O - "https://repos.ripple.com/repos/api/gpg/key/public" | gpg --dearmor > ripple-key.gpg
-        sudo mv ripple-key.gpg /usr/local/share/keyrings
-
-
-4. Check the fingerprint of the newly-added key:
-
-        gpg /usr/local/share/keyrings/ripple-key.gpg
-
-    The output should include an entry for Ripple such as the following:
-
-        gpg: WARNING: no command supplied.  Trying to guess what you mean ...
-        pub   rsa3072 2019-02-14 [SC] [expires: 2026-02-17]
-            C0010EC205B35A3310DC90DE395F97FFCCAFD9A2
-        uid           TechOps Team at Ripple <techops+rippled@ripple.com>
-        sub   rsa3072 2019-02-14 [E] [expires: 2026-02-17]
-
-
-    In particular, make sure that the fingerprint matches. (In the above example, the fingerprint is on the third line, starting with `C001`.)
-
-4. Add the appropriate Ripple repository for your operating system version:
-
-        echo "deb [signed-by=/usr/local/share/keyrings/ripple-key.gpg] https://repos.ripple.com/repos/rippled-deb focal stable" | \
-            sudo tee -a /etc/apt/sources.list.d/ripple.list
-
-    The above example is appropriate for **Ubuntu 20.04 Focal Fossa**. For other operating systems, replace the word `focal` with one of the following:
-
-    - `jammy` for **Ubuntu 22.04 Jammy Jellyfish**
-    - `bionic` for **Ubuntu 18.04 Bionic Beaver**
-    - `bullseye` for **Debian 11 Bullseye**
-    - `buster` for **Debian 10 Buster**
-
-    If you want access to development or pre-release versions of `rippled`, use one of the following instead of `stable`:
-
-    - `unstable` - Pre-release builds ([`release` branch](https://github.com/ripple/rippled/tree/release))
-    - `nightly` - Experimental/development builds ([`develop` branch](https://github.com/ripple/rippled/tree/develop))
-
-    **Warning:** Unstable and nightly builds may be broken at any time. Do not use these builds for production servers.
-
-5. Fetch the Ripple repository.
-
-        sudo apt -y update
-
-6. Install the `rippled` software package:
-
-        sudo apt -y install rippled
-
-7. Check the status of the `rippled` service:
-
-        systemctl status rippled.service
-
-    The `rippled` service should start automatically. If not, you can start it manually:
-
-        sudo systemctl start rippled.service
-
-8. Optional: allow `rippled` to bind to privileged ports.
-
-    This allows you to serve incoming API requests on port 80 or 443. (If you want to do so, you must also update the config file's port settings.)
-
-        sudo setcap 'cap_net_bind_service=+ep' /opt/ripple/bin/rippled
-
-
-## With the YUM package manager
-
-1. Install the Ripple RPM repository:
-
-    Choose the appropriate RPM repository for the stability of releases you want:
-
-    - `stable` for the latest production release (`master` branch)
-    - `unstable` for pre-release builds (`release` branch)
-    - `nightly` for experimental/development builds (`develop` branch)
-
-    *Stable*
-
-        cat << REPOFILE | sudo tee /etc/yum.repos.d/ripple.repo
-        [ripple-stable]
-        name=XRP Ledger Packages
-        enabled=1
-        gpgcheck=0
-        repo_gpgcheck=1
-        baseurl=https://repos.ripple.com/repos/rippled-rpm/stable/
-        gpgkey=https://repos.ripple.com/repos/rippled-rpm/stable/repodata/repomd.xml.key
-        REPOFILE
-
-    *Unstable*
-
-        cat << REPOFILE | sudo tee /etc/yum.repos.d/ripple.repo
-        [ripple-unstable]
-        name=XRP Ledger Packages
-        enabled=1
-        gpgcheck=0
-        repo_gpgcheck=1
-        baseurl=https://repos.ripple.com/repos/rippled-rpm/unstable/
-        gpgkey=https://repos.ripple.com/repos/rippled-rpm/unstable/repodata/repomd.xml.key
-        REPOFILE
-
-    *Nightly*
-
-        cat << REPOFILE | sudo tee /etc/yum.repos.d/ripple.repo
-        [ripple-nightly]
-        name=XRP Ledger Packages
-        enabled=1
-        gpgcheck=0
-        repo_gpgcheck=1
-        baseurl=https://repos.ripple.com/repos/rippled-rpm/nightly/
-        gpgkey=https://repos.ripple.com/repos/rippled-rpm/nightly/repodata/repomd.xml.key
-        REPOFILE
-
-2. Fetch the latest repo updates:
-
-        sudo yum -y update
-
-3. Install the new `rippled` package:
-
-        sudo yum install -y rippled
-
-4. Configure the `rippled` service to start on boot:
-
-        sudo systemctl enable rippled.service
-
-5. Start the `rippled` service:
-
-        sudo systemctl start rippled.service
+After the systemd service file is installed, it must be loaded with: `systemctl daemon-reload`. xahaud can then be enabled: `systemctl enable --now xahaud`.

hook/extern.h

@@ -2,6 +2,9 @@
 // Generated using generate_extern.sh
 #include <stdint.h>
 #ifndef HOOK_EXTERN
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 extern int32_t __attribute__((noduplicate))
 _g(uint32_t guard_id, uint32_t maxiter);
@@ -329,5 +332,15 @@ meta_slot(uint32_t slot_no);
 extern int64_t
 xpop_slot(uint32_t slot_no_tx, uint32_t slot_no_meta);
 
+extern int64_t
+prepare(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+#ifdef __cplusplus
+}
+#endif
 #define HOOK_EXTERN
 #endif  // HOOK_EXTERN

hook/generate_error.sh

@@ -9,7 +9,7 @@ ENUM_FILE="$SCRIPT_DIR/../include/xrpl/hook/Enum.h"
 echo '// For documentation please see: https://xrpl-hooks.readme.io/reference/'
 echo '// Generated using generate_error.sh'
 echo '#ifndef HOOK_ERROR_CODES'
-sed -n '/enum hook_return_code/,/};/p' "$ENUM_FILE" |
+sed -n '/enum class hook_return_code/,/};/p' "$ENUM_FILE" |
     awk '
         function ltrim(s) { sub(/^[[:space:]]+/, "", s); return s }
         function rtrim(s) { sub(/[[:space:]]+$/, "", s); return s }
@@ -31,7 +31,7 @@ sed -n '/enum hook_return_code/,/};/p' "$ENUM_FILE" |
 
         {
             line = $0
-            if (line ~ /enum[[:space:]]+hook_return_code/)
+            if (line ~ /enum[[:space:]]+class[[:space:]]+hook_return_code/)
                 next
             if (line ~ /^[[:space:]]*\{/)
                 next

hook/generate_extern.sh

@@ -11,6 +11,9 @@ APPLY_HOOK="$SCRIPT_DIR/../include/xrpl/hook/hook_api.macro"
     echo '// Generated using generate_extern.sh'
     echo '#include <stdint.h>'
     echo '#ifndef HOOK_EXTERN'
+    echo '#ifdef __cplusplus'
+    echo 'extern "C" {'
+    echo '#endif'
     echo
     awk '
         function trim(s) {
@@ -46,6 +49,9 @@ APPLY_HOOK="$SCRIPT_DIR/../include/xrpl/hook/hook_api.macro"
         }
     ' "$APPLY_HOOK"
 
+    echo '#ifdef __cplusplus'
+    echo '}'
+    echo '#endif'
     echo '#define HOOK_EXTERN'
     echo '#endif  // HOOK_EXTERN'
 } | (

hook/generate_lsflags.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+set -eu
+
+SCRIPT_DIR=$(dirname "$0")
+SCRIPT_DIR=$(cd "$SCRIPT_DIR" && pwd)
+
+RIPPLED_ROOT="$SCRIPT_DIR/../include/xrpl"
+LEDGER_FORMATS="$RIPPLED_ROOT/protocol/LedgerFormats.h"
+
+echo '// Generated using generate_lsflags.sh'
+echo ''
+echo '#ifndef HOOKLSFLAGS_INCLUDED'
+echo '#define HOOKLSFLAGS_INCLUDED 1'
+echo ''
+awk '
+    function ltrim(s) { sub(/^[[:space:]]+/, "", s); return s }
+    function rtrim(s) { sub(/[[:space:]]+$/, "", s); return s }
+    function trim(s) { return rtrim(ltrim(s)) }
+
+    function flush_group() {
+        if (entry_count > 0 && group != "") {
+            printf "enum %s {\n", group
+            for (i = 1; i <= entry_count; i++) {
+                printf "    %s,\n", entries[i]
+            }
+            printf "};\n"
+        }
+        delete entries
+        entry_count = 0
+    }
+
+    /enum LedgerSpecificFlags \{/ { inside = 1; next }
+    inside && /^\};/ { inside = 0; flush_group(); next }
+    !inside { next }
+
+    # Group header comments: // ltFOO or // remarks
+    /^[[:space:]]*\/\/[[:space:]]*(lt[A-Z_]+|remarks)[[:space:]]*$/ {
+        flush_group()
+        line = $0
+        sub(/.*\/\/[[:space:]]*/, "", line)
+        group = trim(line)
+        next
+    }
+
+    # Skip pure comment lines (not group headers)
+    /^[[:space:]]*\/\// { next }
+
+    # Skip blank lines
+    /^[[:space:]]*$/ { next }
+
+    # Accumulate flag lines (handle multi-line values)
+    {
+        line = $0
+        # Strip inline comments
+        sub(/\/\/.*/, "", line)
+        line = trim(line)
+        if (line == "") next
+
+        if (pending != "") {
+            pending = pending " " line
+        } else {
+            pending = line
+        }
+
+        # If line ends with comma, the entry is complete
+        if (pending ~ /,$/) {
+            # Remove trailing comma
+            sub(/,$/, "", pending)
+            entries[++entry_count] = pending
+            pending = ""
+        }
+    }
+
+    BEGIN {
+        inside = 0
+        group = ""
+        pending = ""
+        entry_count = 0
+    }
+' "$LEDGER_FORMATS"
+echo ''
+echo '#endif // HOOKLSFLAGS_INCLUDED'

hook/generate_txflags.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+set -eu
+
+SCRIPT_DIR=$(dirname "$0")
+SCRIPT_DIR=$(cd "$SCRIPT_DIR" && pwd)
+
+RIPPLED_ROOT="$SCRIPT_DIR/../include/xrpl"
+TX_FLAGS="$RIPPLED_ROOT/protocol/TxFlags.h"
+
+echo '// Generated using generate_txflags.sh'
+echo '#include "ls_flags.h"'
+echo '#include <stdint.h>'
+echo ''
+cat "$TX_FLAGS" |
+    awk '
+        /^[[:space:]]*enum / {
+            if (count > 0) print ""
+            inside = 1
+            count++
+        }
+        inside {
+            print
+            if (/};/) inside = 0
+        }
+    '

hook/genesis/build_xahau_h.sh

@@ -0,0 +1,203 @@
+#!/bin/bash
+
+# build_xahau_h.sh
+# Builds genesis hook WASMs and updates xahau.h with hex arrays
+
+set -euo pipefail
+
+# Color codes for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+# Script directory and path constants
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+XAHAU_H="${SCRIPT_DIR}/../../include/xrpl/hook/xahau.h"
+TEMP_DIR="${SCRIPT_DIR}/.temp"
+
+# Hook file mappings (space-separated: name:file)
+HOOK_FILES=(
+    "GovernanceHook:govern.wasm"
+    "RewardHook:reward.wasm"
+    # "MintHook:mint.wasm"
+)
+
+# Cleanup function
+cleanup() {
+    local exit_code=$?
+    if [ ${exit_code} -eq 0 ] && [ -d "${TEMP_DIR}" ]; then
+        rm -rf "${TEMP_DIR}"
+    elif [ ${exit_code} -ne 0 ]; then
+        echo -e "${RED}Error: Script failed with exit code ${exit_code}${NC}" >&2
+        if [ -d "${TEMP_DIR}" ]; then
+            echo -e "${YELLOW}Temp files preserved at: ${TEMP_DIR}${NC}" >&2
+        fi
+    fi
+    exit ${exit_code}
+}
+
+trap cleanup EXIT INT TERM
+
+# Tool verification
+echo -e "${BLUE}==> Checking required tools...${NC}"
+REQUIRED_TOOLS=("make" "xxd" "sed" "clang-format" "wasm-opt")
+for tool in "${REQUIRED_TOOLS[@]}"; do
+    if ! command -v "${tool}" &> /dev/null; then
+        echo -e "${RED}Error: Required tool '${tool}' not found${NC}" >&2
+        exit 1
+    fi
+    echo -e "${GREEN}    ✓ ${tool}${NC}"
+done
+
+# Verify wasm-opt version is exactly 100
+WASM_OPT_VERSION=$(wasm-opt --version | grep -oE '[0-9]+' | head -1)
+if [ "${WASM_OPT_VERSION}" != "100" ]; then
+    echo -e "${RED}Error: wasm-opt version must be 100, but found ${WASM_OPT_VERSION}${NC}" >&2
+    exit 1
+fi
+echo -e "${GREEN}    ✓ wasm-opt version 100${NC}"
+
+# Verify xahau.h exists
+if [ ! -f "${XAHAU_H}" ]; then
+    echo -e "${RED}Error: xahau.h not found at ${XAHAU_H}${NC}" >&2
+    exit 1
+fi
+
+# Create temp directory
+mkdir -p "${TEMP_DIR}"
+
+# Build all WASM files
+echo -e "${BLUE}==> Building WASM files with 'make all'...${NC}"
+cd "${SCRIPT_DIR}"
+make all
+echo -e "${GREEN}    Build completed successfully${NC}"
+
+# Function to convert WASM to hex array
+wasm_to_hex_array() {
+    local wasm_file="$1"
+    local indent="    "
+
+    if [ ! -f "${wasm_file}" ]; then
+        echo -e "${RED}Error: WASM file not found: ${wasm_file}${NC}" >&2
+        return 1
+    fi
+
+    # Convert to hex with xxd, format with sed
+    xxd -p -u -c 10 "${wasm_file}" | \
+        sed 's/../0x&U,/g' | \
+        sed "s/^/${indent}/g" | \
+        sed '$ s/,$//'
+}
+
+# Function to update hook array in xahau.h
+update_hook_array() {
+    local hook_name="$1"
+    local hex_array="$2"
+    local temp_file="${TEMP_DIR}/xahau.h.tmp"
+
+    echo -e "${BLUE}==> Updating ${hook_name}...${NC}"
+
+    # Check if hook already exists
+    if grep -q "static const std::vector<uint8_t> ${hook_name} = {" "${XAHAU_H}"; then
+        echo -e "${YELLOW}    Replacing existing ${hook_name}${NC}"
+
+        # Use awk to replace the array content
+        awk -v hook="${hook_name}" -v hex="${hex_array}" '
+        BEGIN { in_array=0 }
+        {
+            if ($0 ~ "static const std::vector<uint8_t> " hook " = {") {
+                print $0
+                print hex
+                in_array=1
+                next
+            }
+            if (in_array && $0 ~ /};/) {
+                print "};"
+                in_array=0
+                next
+            }
+            if (!in_array) {
+                print $0
+            }
+        }
+        ' "${XAHAU_H}" > "${temp_file}"
+
+        mv "${temp_file}" "${XAHAU_H}"
+    else
+        echo -e "${YELLOW}    Adding new ${hook_name}${NC}"
+
+        # Find the position before #endif and add the new hook
+        awk -v hook="${hook_name}" -v hex="${hex_array}" '
+        {
+            if ($0 ~ /#endif.*XAHAU_GENESIS_HOOKS/) {
+                print ""
+                print "static const std::vector<uint8_t> " hook " = {"
+                print hex
+                print "};"
+                print ""
+                print $0
+            } else {
+                print $0
+            }
+        }
+        ' "${XAHAU_H}" > "${temp_file}"
+
+        mv "${temp_file}" "${XAHAU_H}"
+    fi
+
+    echo -e "${GREEN}    ✓ ${hook_name} updated${NC}"
+}
+
+# Process each hook
+for hook_entry in "${HOOK_FILES[@]}"; do
+    hook_name="${hook_entry%%:*}"
+    wasm_file="${SCRIPT_DIR}/${hook_entry##*:}"
+
+    echo -e "${BLUE}==> Converting ${wasm_file} to hex array...${NC}"
+    hex_array=$(wasm_to_hex_array "${wasm_file}")
+
+    if [ $? -ne 0 ]; then
+        echo -e "${RED}Error: Failed to convert ${wasm_file}${NC}" >&2
+        exit 1
+    fi
+
+    echo -e "${GREEN}    Conversion successful ($(echo "${hex_array}" | wc -l) lines)${NC}"
+
+    update_hook_array "${hook_name}" "${hex_array}"
+done
+
+# Format with clang-format
+echo -e "${BLUE}==> Formatting with clang-format...${NC}"
+cp "${XAHAU_H}" "${TEMP_DIR}/xahau.h.before_format"
+clang-format -i "${XAHAU_H}"
+echo -e "${GREEN}    Formatting completed${NC}"
+
+# Verification
+echo -e "${BLUE}==> Verifying changes...${NC}"
+for hook_entry in "${HOOK_FILES[@]}"; do
+    hook_name="${hook_entry%%:*}"
+    if grep -q "static const std::vector<uint8_t> ${hook_name} = {" "${XAHAU_H}"; then
+        echo -e "${GREEN}    ✓ ${hook_name} found in xahau.h${NC}"
+    else
+        echo -e "${RED}    ✗ ${hook_name} NOT found in xahau.h${NC}" >&2
+        exit 1
+    fi
+done
+
+# Show summary
+echo ""
+echo -e "${GREEN}========================================${NC}"
+echo -e "${GREEN}Successfully updated xahau.h${NC}"
+echo -e "${GREEN}========================================${NC}"
+echo -e "Updated hooks:"
+for hook_entry in "${HOOK_FILES[@]}"; do
+    hook_name="${hook_entry%%:*}"
+    wasm_file="${SCRIPT_DIR}/${hook_entry##*:}"
+    size=$(wc -c < "${wasm_file}" | tr -d ' ')
+    echo -e "  - ${hook_name}: ${size} bytes"
+done
+echo ""
+echo -e "File location: ${XAHAU_H}"
+echo ""

hook/genesis/headers/error.h

@@ -0,0 +1,46 @@
+// For documentation please see: https://xrpl-hooks.readme.io/reference/
+// Generated using generate_error.sh
+#ifndef HOOK_ERROR_CODES
+#define SUCCESS 0
+#define OUT_OF_BOUNDS -1
+#define INTERNAL_ERROR -2
+#define TOO_BIG -3
+#define TOO_SMALL -4
+#define DOESNT_EXIST -5
+#define NO_FREE_SLOTS -6
+#define INVALID_ARGUMENT -7
+#define ALREADY_SET -8
+#define PREREQUISITE_NOT_MET -9
+#define FEE_TOO_LARGE -10
+#define EMISSION_FAILURE -11
+#define TOO_MANY_NONCES -12
+#define TOO_MANY_EMITTED_TXN -13
+#define NOT_IMPLEMENTED -14
+#define INVALID_ACCOUNT -15
+#define GUARD_VIOLATION -16
+#define INVALID_FIELD -17
+#define PARSE_ERROR -18
+#define RC_ROLLBACK -19
+#define RC_ACCEPT -20
+#define NO_SUCH_KEYLET -21
+#define NOT_AN_ARRAY -22
+#define NOT_AN_OBJECT -23
+#define INVALID_FLOAT -10024
+#define DIVISION_BY_ZERO -25
+#define MANTISSA_OVERSIZED -26
+#define MANTISSA_UNDERSIZED -27
+#define EXPONENT_OVERSIZED -28
+#define EXPONENT_UNDERSIZED -29
+#define OVERFLOW -30
+#define NOT_IOU_AMOUNT -31
+#define NOT_AN_AMOUNT -32
+#define CANT_RETURN_NEGATIVE -33
+#define NOT_AUTHORIZED -34
+#define PREVIOUS_FAILURE_PREVENTS_RETRY -35
+#define TOO_MANY_PARAMS -36
+#define INVALID_TXN -37
+#define RESERVE_INSUFFICIENT -38
+#define COMPLEX_NOT_SUPPORTED -39
+#define DOES_NOT_MATCH -40
+#define HOOK_ERROR_CODES
+#endif //HOOK_ERROR_CODES

hook/genesis/headers/extern.h

@@ -0,0 +1,352 @@
+// For documentation please see: https://xrpl-hooks.readme.io/reference/
+// Generated using generate_extern.sh
+#include <stdint.h>
+#ifndef HOOK_EXTERN
+
+extern int32_t __attribute__((noduplicate))
+_g(uint32_t guard_id, uint32_t maxiter);
+
+extern int64_t
+accept(uint32_t read_ptr, uint32_t read_len, int64_t error_code);
+
+extern int64_t
+emit(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+etxn_burden(void);
+
+extern int64_t
+etxn_details(uint32_t write_ptr, uint32_t write_len);
+
+extern int64_t
+etxn_fee_base(uint32_t read_ptr, uint32_t read_len);
+
+extern int64_t
+etxn_generation(void);
+
+extern int64_t
+etxn_nonce(uint32_t write_ptr, uint32_t write_len);
+
+extern int64_t
+etxn_reserve(uint32_t count);
+
+extern int64_t
+fee_base(void);
+
+extern int64_t
+float_compare(int64_t float1, int64_t float2, uint32_t mode);
+
+extern int64_t
+float_divide(int64_t float1, int64_t float2);
+
+extern int64_t
+float_exponent(int64_t float1);
+
+extern int64_t
+float_exponent_set(int64_t float1, int32_t exponent);
+
+extern int64_t
+float_int(int64_t float1, uint32_t decimal_places, uint32_t abs);
+
+extern int64_t
+float_invert(int64_t float1);
+
+extern int64_t
+float_log(int64_t float1);
+
+extern int64_t
+float_mantissa(int64_t float1);
+
+extern int64_t
+float_mantissa_set(int64_t float1, int64_t mantissa);
+
+extern int64_t
+float_mulratio(
+    int64_t float1,
+    uint32_t round_up,
+    uint32_t numerator,
+    uint32_t denominator);
+
+extern int64_t
+float_multiply(int64_t float1, int64_t float2);
+
+extern int64_t
+float_negate(int64_t float1);
+
+extern int64_t
+float_one(void);
+
+extern int64_t
+float_root(int64_t float1, uint32_t n);
+
+extern int64_t
+float_set(int32_t exponent, int64_t mantissa);
+
+extern int64_t
+float_sign(int64_t float1);
+
+extern int64_t
+float_sign_set(int64_t float1, uint32_t negative);
+
+extern int64_t
+float_sto(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t cread_ptr,
+    uint32_t cread_len,
+    uint32_t iread_ptr,
+    uint32_t iread_len,
+    int64_t float1,
+    uint32_t field_code);
+
+extern int64_t
+float_sto_set(uint32_t read_ptr, uint32_t read_len);
+
+extern int64_t
+float_sum(int64_t float1, int64_t float2);
+
+extern int64_t
+hook_account(uint32_t write_ptr, uint32_t write_len);
+
+extern int64_t
+hook_again(void);
+
+extern int64_t
+hook_hash(uint32_t write_ptr, uint32_t write_len, int32_t hook_no);
+
+extern int64_t
+hook_param(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+otxn_param(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+hook_param_set(
+    uint32_t read_ptr,
+    uint32_t read_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len,
+    uint32_t hread_ptr,
+    uint32_t hread_len);
+
+extern int64_t
+hook_pos(void);
+
+extern int64_t
+hook_skip(uint32_t read_ptr, uint32_t read_len, uint32_t flags);
+
+extern int64_t
+ledger_keylet(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t lread_ptr,
+    uint32_t lread_len,
+    uint32_t hread_ptr,
+    uint32_t hread_len);
+
+extern int64_t
+ledger_last_hash(uint32_t write_ptr, uint32_t write_len);
+
+extern int64_t
+ledger_last_time(void);
+
+extern int64_t
+ledger_nonce(uint32_t write_ptr, uint32_t write_len);
+
+extern int64_t
+ledger_seq(void);
+
+extern int64_t
+meta_slot(uint32_t slot_no);
+
+extern int64_t
+otxn_burden(void);
+
+extern int64_t
+otxn_field(uint32_t write_ptr, uint32_t write_len, uint32_t field_id);
+
+extern int64_t
+otxn_field_txt(uint32_t write_ptr, uint32_t write_len, uint32_t field_id);
+
+extern int64_t
+otxn_generation(void);
+
+extern int64_t
+otxn_id(uint32_t write_ptr, uint32_t write_len, uint32_t flags);
+
+extern int64_t
+otxn_slot(uint32_t slot_no);
+
+extern int64_t
+otxn_type(void);
+
+extern int64_t
+rollback(uint32_t read_ptr, uint32_t read_len, int64_t error_code);
+
+extern int64_t
+slot(uint32_t write_ptr, uint32_t write_len, uint32_t slot);
+
+extern int64_t
+slot_clear(uint32_t slot);
+
+extern int64_t
+slot_count(uint32_t slot);
+
+extern int64_t
+slot_float(uint32_t slot_no);
+
+extern int64_t
+slot_id(uint32_t write_ptr, uint32_t write_len, uint32_t slot);
+
+extern int64_t
+slot_set(uint32_t read_ptr, uint32_t read_len, uint32_t slot);
+
+extern int64_t
+slot_size(uint32_t slot);
+
+extern int64_t
+slot_subarray(uint32_t parent_slot, uint32_t array_id, uint32_t new_slot);
+
+extern int64_t
+slot_subfield(uint32_t parent_slot, uint32_t field_id, uint32_t new_slot);
+
+extern int64_t
+slot_type(uint32_t slot_no, uint32_t flags);
+
+extern int64_t
+state(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len);
+
+extern int64_t
+state_foreign(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len,
+    uint32_t nread_ptr,
+    uint32_t nread_len,
+    uint32_t aread_ptr,
+    uint32_t aread_len);
+
+extern int64_t
+state_foreign_set(
+    uint32_t read_ptr,
+    uint32_t read_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len,
+    uint32_t nread_ptr,
+    uint32_t nread_len,
+    uint32_t aread_ptr,
+    uint32_t aread_len);
+
+extern int64_t
+state_set(
+    uint32_t read_ptr,
+    uint32_t read_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len);
+
+extern int64_t
+sto_emplace(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t sread_ptr,
+    uint32_t sread_len,
+    uint32_t fread_ptr,
+    uint32_t fread_len,
+    uint32_t field_id);
+
+extern int64_t
+sto_erase(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len,
+    uint32_t field_id);
+
+extern int64_t
+sto_subarray(uint32_t read_ptr, uint32_t read_len, uint32_t array_id);
+
+extern int64_t
+sto_subfield(uint32_t read_ptr, uint32_t read_len, uint32_t field_id);
+
+extern int64_t
+sto_validate(uint32_t tread_ptr, uint32_t tread_len);
+
+extern int64_t
+trace(
+    uint32_t mread_ptr,
+    uint32_t mread_len,
+    uint32_t dread_ptr,
+    uint32_t dread_len,
+    uint32_t as_hex);
+
+extern int64_t
+trace_float(uint32_t read_ptr, uint32_t read_len, int64_t float1);
+
+extern int64_t
+trace_num(uint32_t read_ptr, uint32_t read_len, int64_t number);
+
+extern int64_t
+trace_slot(uint32_t read_ptr, uint32_t read_len, uint32_t slot);
+
+extern int64_t
+util_accid(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+util_keylet(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t keylet_type,
+    uint32_t a,
+    uint32_t b,
+    uint32_t c,
+    uint32_t d,
+    uint32_t e,
+    uint32_t f);
+
+extern int64_t
+util_raddr(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+util_sha512h(
+    uint32_t write_ptr,
+    uint32_t write_len,
+    uint32_t read_ptr,
+    uint32_t read_len);
+
+extern int64_t
+util_verify(
+    uint32_t dread_ptr,
+    uint32_t dread_len,
+    uint32_t sread_ptr,
+    uint32_t sread_len,
+    uint32_t kread_ptr,
+    uint32_t kread_len);
+
+extern int64_t xpop_slot(uint32_t, uint32_t);
+#define HOOK_EXTERN
+#endif  // HOOK_EXTERN

hook/genesis/headers/hookapi.h

@@ -0,0 +1,50 @@
+/**
+ * Hook API include file
+ *
+ * Note to the reader:
+ * This include defines two types of things: external functions and macros
+ * Functions are used sparingly because a non-inlining compiler may produce
+ * undesirable output.
+ *
+ * Find documentation here: https://xrpl-hooks.readme.io/reference/
+ */
+
+#ifndef HOOKAPI_INCLUDED
+#define HOOKAPI_INCLUDED 1
+
+#define KEYLET_HOOK 1
+#define KEYLET_HOOK_STATE 2
+#define KEYLET_ACCOUNT 3
+#define KEYLET_AMENDMENTS 4
+#define KEYLET_CHILD 5
+#define KEYLET_SKIP 6
+#define KEYLET_FEES 7
+#define KEYLET_NEGATIVE_UNL 8
+#define KEYLET_LINE 9
+#define KEYLET_OFFER 10
+#define KEYLET_QUALITY 11
+#define KEYLET_EMITTED_DIR 12
+#define KEYLET_TICKET 13
+#define KEYLET_SIGNERS 14
+#define KEYLET_CHECK 15
+#define KEYLET_DEPOSIT_PREAUTH 16
+#define KEYLET_UNCHECKED 17
+#define KEYLET_OWNER_DIR 18
+#define KEYLET_PAGE 19
+#define KEYLET_ESCROW 20
+#define KEYLET_PAYCHAN 21
+#define KEYLET_EMITTED 22
+#define KEYLET_NFT_OFFER 23
+#define KEYLET_HOOK_DEFINITION 24
+
+#define COMPARE_EQUAL 1U
+#define COMPARE_LESS 2U
+#define COMPARE_GREATER 4U
+
+#include "error.h"
+#include "extern.h"
+#include "sfcodes.h"
+#include "macro.h"
+#include "types.h"
+
+#endif

hook/genesis/headers/macro.h

@@ -0,0 +1,671 @@
+/**
+ * These are helper macros for writing hooks, all of them are optional as is including hookmacro.h at all
+ */
+
+#include <stdint.h>
+#include "hookapi.h"
+#include "sfcodes.h"
+
+#ifndef HOOKMACROS_INCLUDED
+#define HOOKMACROS_INCLUDED 1
+
+
+#ifdef NDEBUG
+#define DEBUG 0
+#else
+#define DEBUG 1
+#endif
+
+#define TRACEVAR(v) if (DEBUG) trace_num((uint32_t)(#v), (uint32_t)(sizeof(#v) - 1), (int64_t)v);
+#define TRACEHEX(v) if (DEBUG) trace((uint32_t)(#v), (uint32_t)(sizeof(#v) - 1), (uint32_t)(v), (uint32_t)(sizeof(v)), 1);
+#define TRACEXFL(v) if (DEBUG) trace_float((uint32_t)(#v), (uint32_t)(sizeof(#v) - 1), (int64_t)v);
+#define TRACESTR(v) if (DEBUG) trace((uint32_t)(#v), (uint32_t)(sizeof(#v) - 1), (uint32_t)(v), sizeof(v), 0);
+
+// hook developers should use this guard macro, simply GUARD(<maximum iterations>)
+#define GUARD(maxiter) _g((1ULL << 31U) + __LINE__, (maxiter)+1)
+#define GUARDM(maxiter, n) _g(( (1ULL << 31U) + (__LINE__ << 16) + n), (maxiter)+1)
+
+#define SBUF(str) (uint32_t)(str), sizeof(str)
+
+#define REQUIRE(cond, str)\
+{\
+    if (!(cond))\
+        rollback(SBUF(str), __LINE__);\
+}
+
+// make a report buffer as a c-string
+// provide a name for a buffer to declare (buf)
+// provide a static string
+// provide an integer to print after the string
+#define RBUF(buf, out_len, str, num)\
+unsigned char buf[sizeof(str) + 21];\
+int out_len = 0;\
+{\
+    int i = 0;\
+    for (; GUARDM(sizeof(str),1),i < sizeof(str); ++i)\
+        (buf)[i] = str[i];\
+    if ((buf)[sizeof(str)-1] == 0) i--;\
+    if ((num) < 0) (buf)[i++] = '-';\
+    uint64_t unsigned_num = (uint64_t)( (num) < 0 ? (num) * -1 : (num) );\
+    uint64_t j = 10000000000000000000ULL;\
+    int start = 1;\
+    for (; GUARDM(20,2), unsigned_num > 0 && j > 0; j /= 10)\
+    {\
+        unsigned char digit = ( unsigned_num / j ) % 10;\
+        if (digit == 0 && start)\
+            continue;\
+        start = 0;\
+        (buf)[i++] = '0' + digit;\
+    }\
+    (buf)[i] = '\0';\
+    out_len = i;\
+}
+
+#define RBUF2(buff, out_len, str, num, str2, num2)\
+unsigned char buff[sizeof(str) + sizeof(str2) + 42];\
+int out_len = 0;\
+{\
+    unsigned char* buf = buff;\
+    int i = 0;\
+    for (; GUARDM(sizeof(str),1),i < sizeof(str); ++i)\
+        (buf)[i] = str[i];\
+    if ((buf)[sizeof(str)-1] == 0) i--;\
+    if ((num) < 0) (buf)[i++] = '-';\
+    uint64_t unsigned_num = (uint64_t)( (num) < 0 ? (num) * -1 : (num) );\
+    uint64_t j = 10000000000000000000ULL;\
+    int start = 1;\
+    for (; GUARDM(20,2), unsigned_num > 0 && j > 0; j /= 10)\
+    {\
+        unsigned char digit = ( unsigned_num / j ) % 10;\
+        if (digit == 0 && start)\
+            continue;\
+        start = 0;\
+        (buf)[i++] = '0' + digit;\
+    }\
+    buf += i;\
+    out_len += i;\
+    i = 0;\
+    for (; GUARDM(sizeof(str2),3),i < sizeof(str2); ++i)\
+        (buf)[i] = str2[i];\
+    if ((buf)[sizeof(str2)-1] == 0) i--;\
+    if ((num2) < 0) (buf)[i++] = '-';\
+    unsigned_num = (uint64_t)( (num2) < 0 ? (num2) * -1 : (num2) );\
+    j = 10000000000000000000ULL;\
+    start = 1;\
+    for (; GUARDM(20,4), unsigned_num > 0 && j > 0; j /= 10)\
+    {\
+        unsigned char digit = ( unsigned_num / j ) % 10;\
+        if (digit == 0 && start)\
+            continue;\
+        start = 0;\
+        (buf)[i++] = '0' + digit;\
+    }\
+    (buf)[i] = '\0';\
+    out_len += i;\
+}
+
+#define CLEARBUF(b)\
+{\
+    for (int x = 0; GUARD(sizeof(b)), x < sizeof(b); ++x)\
+        b[x] = 0;\
+}
+
+// returns an in64_t, negative if error, non-negative if valid drops
+#define AMOUNT_TO_DROPS(amount_buffer)\
+     (((amount_buffer)[0] >> 7) ? -2 : (\
+     ((((uint64_t)((amount_buffer)[0])) & 0xb00111111) << 56) +\
+      (((uint64_t)((amount_buffer)[1])) << 48) +\
+      (((uint64_t)((amount_buffer)[2])) << 40) +\
+      (((uint64_t)((amount_buffer)[3])) << 32) +\
+      (((uint64_t)((amount_buffer)[4])) << 24) +\
+      (((uint64_t)((amount_buffer)[5])) << 16) +\
+      (((uint64_t)((amount_buffer)[6])) <<  8) +\
+      (((uint64_t)((amount_buffer)[7])))))
+
+#define SUB_OFFSET(x) ((int32_t)(x >> 32))
+#define SUB_LENGTH(x) ((int32_t)(x & 0xFFFFFFFFULL))
+
+#define BUFFER_EQUAL_20(buf1, buf2)\
+    (\
+        *(((uint64_t*)(buf1)) + 0) == *(((uint64_t*)(buf2)) + 0) &&\
+        *(((uint64_t*)(buf1)) + 1) == *(((uint64_t*)(buf2)) + 1) &&\
+        *(((uint32_t*)(buf1)) + 4) == *(((uint32_t*)(buf2)) + 4))
+
+#define BUFFER_EQUAL_32(buf1, buf2)\
+    (\
+        *(((uint64_t*)(buf1)) + 0) == *(((uint64_t*)(buf2)) + 0) &&\
+        *(((uint64_t*)(buf1)) + 1) == *(((uint64_t*)(buf2)) + 1) &&\
+        *(((uint64_t*)(buf1)) + 2) == *(((uint64_t*)(buf2)) + 2) &&\
+        *(((uint64_t*)(buf1)) + 3) == *(((uint64_t*)(buf2)) + 3))
+
+
+// when using this macro buf1len may be dynamic but buf2len must be static
+// provide n >= 1 to indicate how many times the macro will be hit on the line of code
+// e.g. if it is in a loop that loops 10 times n = 10
+
+#define BUFFER_EQUAL_GUARD(output, buf1, buf1len, buf2, buf2len, n)\
+{\
+    output = ((buf1len) == (buf2len) ? 1 : 0);\
+    for (int x = 0; GUARDM( (buf2len) * (n), 1 ), output && x < (buf2len);\
+         ++x)\
+        output = *(((uint8_t*)(buf1)) + x) == *(((uint8_t*)(buf2)) + x);\
+}
+
+#define BUFFER_SWAP(x,y)\
+{\
+    uint8_t* z = x;\
+    x = y;\
+    y = z;\
+}
+
+#define ACCOUNT_COMPARE(compare_result, buf1, buf2)\
+{\
+    compare_result = 0;\
+    for (int i = 0; GUARD(20), i < 20; ++i)\
+    {\
+        if (buf1[i] > buf2[i])\
+        {\
+            compare_result = 1;\
+            break;\
+        }\
+        else if (buf1[i] < buf2[i])\
+        {\
+            compare_result = -1;\
+            break;\
+        }\
+    }\
+}
+
+#define BUFFER_EQUAL_STR_GUARD(output, buf1, buf1len, str, n)\
+    BUFFER_EQUAL_GUARD(output, buf1, buf1len, str, (sizeof(str)-1), n)
+
+#define BUFFER_EQUAL_STR(output, buf1, buf1len, str)\
+    BUFFER_EQUAL_GUARD(output, buf1, buf1len, str, (sizeof(str)-1), 1)
+
+#define BUFFER_EQUAL(output, buf1, buf2, compare_len)\
+    BUFFER_EQUAL_GUARD(output, buf1, compare_len, buf2, compare_len, 1)
+
+#define UINT16_TO_BUF(buf_raw, i)\
+{\
+    unsigned char* buf = (unsigned char*)buf_raw;\
+    buf[0] = (((uint64_t)i) >> 8) & 0xFFUL;\
+    buf[1] = (((uint64_t)i) >> 0) & 0xFFUL;\
+}
+
+#define UINT16_FROM_BUF(buf)\
+    (((uint64_t)((buf)[0]) <<  8) +\
+     ((uint64_t)((buf)[1]) <<  0))
+
+#define UINT32_TO_BUF(buf_raw, i)\
+{\
+    unsigned char* buf = (unsigned char*)buf_raw;\
+    buf[0] = (((uint64_t)i) >> 24) & 0xFFUL;\
+    buf[1] = (((uint64_t)i) >> 16) & 0xFFUL;\
+    buf[2] = (((uint64_t)i) >>  8) & 0xFFUL;\
+    buf[3] = (((uint64_t)i) >>  0) & 0xFFUL;\
+}
+
+
+#define UINT32_FROM_BUF(buf)\
+    (((uint64_t)((buf)[0]) << 24) +\
+     ((uint64_t)((buf)[1]) << 16) +\
+     ((uint64_t)((buf)[2]) <<  8) +\
+     ((uint64_t)((buf)[3]) <<  0))
+
+#define UINT64_TO_BUF(buf_raw, i)\
+{\
+    unsigned char* buf = (unsigned char*)buf_raw;\
+    buf[0] = (((uint64_t)i) >> 56) & 0xFFUL;\
+    buf[1] = (((uint64_t)i) >> 48) & 0xFFUL;\
+    buf[2] = (((uint64_t)i) >> 40) & 0xFFUL;\
+    buf[3] = (((uint64_t)i) >> 32) & 0xFFUL;\
+    buf[4] = (((uint64_t)i) >> 24) & 0xFFUL;\
+    buf[5] = (((uint64_t)i) >> 16) & 0xFFUL;\
+    buf[6] = (((uint64_t)i) >>  8) & 0xFFUL;\
+    buf[7] = (((uint64_t)i) >>  0) & 0xFFUL;\
+}
+
+
+#define UINT64_FROM_BUF(buf)\
+    (((uint64_t)((buf)[0]) << 56) +\
+     ((uint64_t)((buf)[1]) << 48) +\
+     ((uint64_t)((buf)[2]) << 40) +\
+     ((uint64_t)((buf)[3]) << 32) +\
+     ((uint64_t)((buf)[4]) << 24) +\
+     ((uint64_t)((buf)[5]) << 16) +\
+     ((uint64_t)((buf)[6]) <<  8) +\
+     ((uint64_t)((buf)[7]) <<  0))
+
+
+#define INT64_FROM_BUF(buf)\
+   ((((uint64_t)((buf)[0] & 0x7FU) << 56) +\
+     ((uint64_t)((buf)[1]) << 48) +\
+     ((uint64_t)((buf)[2]) << 40) +\
+     ((uint64_t)((buf)[3]) << 32) +\
+     ((uint64_t)((buf)[4]) << 24) +\
+     ((uint64_t)((buf)[5]) << 16) +\
+     ((uint64_t)((buf)[6]) <<  8) +\
+     ((uint64_t)((buf)[7]) <<  0)) * (buf[0] & 0x80U ? -1 : 1))
+
+#define INT64_TO_BUF(buf_raw, i)\
+{\
+    unsigned char* buf = (unsigned char*)buf_raw;\
+    buf[0] = (((uint64_t)i) >> 56) & 0x7FUL;\
+    buf[1] = (((uint64_t)i) >> 48) & 0xFFUL;\
+    buf[2] = (((uint64_t)i) >> 40) & 0xFFUL;\
+    buf[3] = (((uint64_t)i) >> 32) & 0xFFUL;\
+    buf[4] = (((uint64_t)i) >> 24) & 0xFFUL;\
+    buf[5] = (((uint64_t)i) >> 16) & 0xFFUL;\
+    buf[6] = (((uint64_t)i) >>  8) & 0xFFUL;\
+    buf[7] = (((uint64_t)i) >>  0) & 0xFFUL;\
+    if (i < 0) buf[0] |= 0x80U;\
+}
+
+#define ttPAYMENT 0
+#define ttESCROW_CREATE 1
+#define ttESCROW_FINISH 2
+#define ttACCOUNT_SET 3
+#define ttESCROW_CANCEL 4
+#define ttREGULAR_KEY_SET 5
+#define ttOFFER_CREATE 7
+#define ttOFFER_CANCEL 8
+#define ttTICKET_CREATE 10
+#define ttSIGNER_LIST_SET 12
+#define ttPAYCHAN_CREATE 13
+#define ttPAYCHAN_FUND 14
+#define ttPAYCHAN_CLAIM 15
+#define ttCHECK_CREATE 16
+#define ttCHECK_CASH 17
+#define ttCHECK_CANCEL 18
+#define ttDEPOSIT_PREAUTH 19
+#define ttTRUST_SET 20
+#define ttACCOUNT_DELETE 21
+#define ttHOOK_SET 22
+#define ttNFTOKEN_MINT 25
+#define ttNFTOKEN_BURN 26
+#define ttNFTOKEN_CREATE_OFFER 27
+#define ttNFTOKEN_CANCEL_OFFER 28
+#define ttNFTOKEN_ACCEPT_OFFER 29
+#define ttURITOKEN_MINT 45
+#define ttURITOKEN_BURN 46
+#define ttURITOKEN_BUY 47
+#define ttURITOKEN_CREATE_SELL_OFFER 48
+#define ttURITOKEN_CANCEL_SELL_OFFER 49
+#define ttCLAIM_REWARD 98
+#define ttINVOKE 99
+#define ttAMENDMENT 100
+#define ttFEE 101
+#define ttUNL_MODIFY 102
+#define ttEMIT_FAILURE 103
+#define tfCANONICAL 0x80000000UL
+
+#define atACCOUNT 1U
+#define atOWNER 2U
+#define atDESTINATION 3U
+#define atISSUER 4U
+#define atAUTHORIZE 5U
+#define atUNAUTHORIZE 6U
+#define atTARGET 7U
+#define atREGULARKEY 8U
+#define atPSEUDOCALLBACK 9U
+
+#define amAMOUNT 1U
+#define amBALANCE 2U
+#define amLIMITAMOUNT 3U
+#define amTAKERPAYS 4U
+#define amTAKERGETS 5U
+#define amLOWLIMIT 6U
+#define amHIGHLIMIT 7U
+#define amFEE 8U
+#define amSENDMAX 9U
+#define amDELIVERMIN 10U
+#define amMINIMUMOFFER 16U
+#define amRIPPLEESCROW 17U
+#define amDELIVEREDAMOUNT 18U
+
+/**
+ * RH NOTE -- PAY ATTENTION
+ *
+ * ALL 'ENCODE' MACROS INCREMENT BUF_OUT
+ * THIS IS TO MAKE CHAINING EASY
+ * BUF_OUT IS A SACRIFICIAL POINTER
+ *
+ * 'ENCODE' MACROS WITH CONSTANTS HAVE
+ * ALIASING TO ASSIST YOU WITH ORDER
+ * _TYPECODE_FIELDCODE_ENCODE_MACRO
+ * TO PRODUCE A SERIALIZED OBJECT
+ * IN CANONICAL FORMAT YOU MUST ORDER
+ * FIRST BY TYPE CODE THEN BY FIELD CODE
+ *
+ * ALL 'PREPARE' MACROS PRESERVE POINTERS
+ *
+ **/
+
+
+#define ENCODE_TL_SIZE 49
+#define ENCODE_TL(buf_out, tlamt, amount_type)\
+{\
+        uint8_t uat = amount_type; \
+        buf_out[0] = 0x60U +(uat & 0x0FU ); \
+        for (int i = 1; GUARDM(48, 1), i < 49; ++i)\
+            buf_out[i] = tlamt[i-1];\
+        buf_out += ENCODE_TL_SIZE;\
+}
+#define _06_XX_ENCODE_TL(buf_out, drops, amount_type )\
+    ENCODE_TL(buf_out, drops, amount_type );
+#define ENCODE_TL_AMOUNT(buf_out, drops )\
+    ENCODE_TL(buf_out, drops, amAMOUNT );
+#define _06_01_ENCODE_TL_AMOUNT(buf_out, drops )\
+    ENCODE_TL_AMOUNT(buf_out, drops );
+
+
+// Encode drops to serialization format
+// consumes 9 bytes
+#define ENCODE_DROPS_SIZE 9
+#define ENCODE_DROPS(buf_out, drops, amount_type ) \
+    {\
+        uint8_t uat = amount_type; \
+        uint64_t udrops = drops; \
+        buf_out[0] = 0x60U +(uat & 0x0FU ); \
+        buf_out[1] = 0b01000000 + (( udrops >> 56 ) & 0b00111111 ); \
+        buf_out[2] = (udrops >> 48) & 0xFFU; \
+        buf_out[3] = (udrops >> 40) & 0xFFU; \
+        buf_out[4] = (udrops >> 32) & 0xFFU; \
+        buf_out[5] = (udrops >> 24) & 0xFFU; \
+        buf_out[6] = (udrops >> 16) & 0xFFU; \
+        buf_out[7] = (udrops >>  8) & 0xFFU; \
+        buf_out[8] = (udrops >>  0) & 0xFFU; \
+        buf_out += ENCODE_DROPS_SIZE; \
+    }
+
+#define _06_XX_ENCODE_DROPS(buf_out, drops, amount_type )\
+    ENCODE_DROPS(buf_out, drops, amount_type );
+
+#define ENCODE_DROPS_AMOUNT(buf_out, drops )\
+    ENCODE_DROPS(buf_out, drops, amAMOUNT );
+#define _06_01_ENCODE_DROPS_AMOUNT(buf_out, drops )\
+    ENCODE_DROPS_AMOUNT(buf_out, drops );
+
+#define ENCODE_DROPS_FEE(buf_out, drops )\
+    ENCODE_DROPS(buf_out, drops, amFEE );
+#define _06_08_ENCODE_DROPS_FEE(buf_out, drops )\
+    ENCODE_DROPS_FEE(buf_out, drops );
+
+#define ENCODE_TT_SIZE 3
+#define ENCODE_TT(buf_out, tt )\
+    {\
+        uint8_t utt = tt;\
+        buf_out[0] = 0x12U;\
+        buf_out[1] =(utt >> 8 ) & 0xFFU;\
+        buf_out[2] =(utt >> 0 ) & 0xFFU;\
+        buf_out += ENCODE_TT_SIZE; \
+    }
+#define _01_02_ENCODE_TT(buf_out, tt)\
+    ENCODE_TT(buf_out, tt);
+
+
+#define ENCODE_ACCOUNT_SIZE 22
+#define ENCODE_ACCOUNT(buf_out, account_id, account_type)\
+    {\
+        uint8_t uat = account_type;\
+        buf_out[0] = 0x80U + uat;\
+        buf_out[1] = 0x14U;\
+        *(uint64_t*)(buf_out +  2) = *(uint64_t*)(account_id +  0);\
+        *(uint64_t*)(buf_out + 10) = *(uint64_t*)(account_id +  8);\
+        *(uint32_t*)(buf_out + 18) = *(uint32_t*)(account_id + 16);\
+        buf_out += ENCODE_ACCOUNT_SIZE;\
+    }
+#define _08_XX_ENCODE_ACCOUNT(buf_out, account_id, account_type)\
+    ENCODE_ACCOUNT(buf_out, account_id, account_type);
+
+#define ENCODE_ACCOUNT_SRC_SIZE 22
+#define ENCODE_ACCOUNT_SRC(buf_out, account_id)\
+    ENCODE_ACCOUNT(buf_out, account_id, atACCOUNT);
+#define _08_01_ENCODE_ACCOUNT_SRC(buf_out, account_id)\
+    ENCODE_ACCOUNT_SRC(buf_out, account_id);
+
+#define ENCODE_ACCOUNT_DST_SIZE 22
+#define ENCODE_ACCOUNT_DST(buf_out, account_id)\
+    ENCODE_ACCOUNT(buf_out, account_id, atDESTINATION);
+#define _08_03_ENCODE_ACCOUNT_DST(buf_out, account_id)\
+    ENCODE_ACCOUNT_DST(buf_out, account_id);
+
+#define ENCODE_ACCOUNT_OWNER_SIZE 22
+#define ENCODE_ACCOUNT_OWNER(buf_out, account_id) \
+    ENCODE_ACCOUNT(buf_out, account_id, atOWNER);
+#define _08_02_ENCODE_ACCOUNT_OWNER(buf_out, account_id) \
+    ENCODE_ACCOUNT_OWNER(buf_out, account_id);
+
+#define ENCODE_UINT32_COMMON_SIZE 5U
+#define ENCODE_UINT32_COMMON(buf_out, i, field)\
+    {\
+        uint32_t ui = i; \
+        uint8_t uf = field; \
+        buf_out[0] = 0x20U +(uf & 0x0FU); \
+        buf_out[1] =(ui >> 24 ) & 0xFFU; \
+        buf_out[2] =(ui >> 16 ) & 0xFFU; \
+        buf_out[3] =(ui >>  8 ) & 0xFFU; \
+        buf_out[4] =(ui >>  0 ) & 0xFFU; \
+        buf_out += ENCODE_UINT32_COMMON_SIZE; \
+    }
+#define _02_XX_ENCODE_UINT32_COMMON(buf_out, i, field)\
+    ENCODE_UINT32_COMMON(buf_out, i, field)\
+
+#define ENCODE_UINT32_UNCOMMON_SIZE 6U
+#define ENCODE_UINT32_UNCOMMON(buf_out, i, field)\
+    {\
+        uint32_t ui = i; \
+        uint8_t uf = field; \
+        buf_out[0] = 0x20U; \
+        buf_out[1] = uf; \
+        buf_out[2] =(ui >> 24 ) & 0xFFU; \
+        buf_out[3] =(ui >> 16 ) & 0xFFU; \
+        buf_out[4] =(ui >>  8 ) & 0xFFU; \
+        buf_out[5] =(ui >>  0 ) & 0xFFU; \
+        buf_out += ENCODE_UINT32_UNCOMMON_SIZE; \
+    }
+#define _02_XX_ENCODE_UINT32_UNCOMMON(buf_out, i, field)\
+    ENCODE_UINT32_UNCOMMON(buf_out, i, field)\
+
+#define ENCODE_LLS_SIZE 6U
+#define ENCODE_LLS(buf_out, lls )\
+    ENCODE_UINT32_UNCOMMON(buf_out, lls, 0x1B );
+#define _02_27_ENCODE_LLS(buf_out, lls )\
+    ENCODE_LLS(buf_out, lls );
+
+#define ENCODE_FLS_SIZE 6U
+#define ENCODE_FLS(buf_out, fls )\
+    ENCODE_UINT32_UNCOMMON(buf_out, fls, 0x1A );
+#define _02_26_ENCODE_FLS(buf_out, fls )\
+    ENCODE_FLS(buf_out, fls );
+
+#define ENCODE_TAG_SRC_SIZE 5
+#define ENCODE_TAG_SRC(buf_out, tag )\
+    ENCODE_UINT32_COMMON(buf_out, tag, 0x3U );
+#define _02_03_ENCODE_TAG_SRC(buf_out, tag )\
+    ENCODE_TAG_SRC(buf_out, tag );
+
+#define ENCODE_TAG_DST_SIZE 5
+#define ENCODE_TAG_DST(buf_out, tag )\
+    ENCODE_UINT32_COMMON(buf_out, tag, 0xEU );
+#define _02_14_ENCODE_TAG_DST(buf_out, tag )\
+    ENCODE_TAG_DST(buf_out, tag );
+
+#define ENCODE_SEQUENCE_SIZE 5
+#define ENCODE_SEQUENCE(buf_out, sequence )\
+    ENCODE_UINT32_COMMON(buf_out, sequence, 0x4U );
+#define _02_04_ENCODE_SEQUENCE(buf_out, sequence )\
+    ENCODE_SEQUENCE(buf_out, sequence );
+
+#define ENCODE_FLAGS_SIZE 5
+#define ENCODE_FLAGS(buf_out, tag )\
+    ENCODE_UINT32_COMMON(buf_out, tag, 0x2U );
+#define _02_02_ENCODE_FLAGS(buf_out, tag )\
+    ENCODE_FLAGS(buf_out, tag );
+
+#define ENCODE_SIGNING_PUBKEY_SIZE 35
+#define ENCODE_SIGNING_PUBKEY(buf_out, pkey )\
+    {\
+        buf_out[0] = 0x73U;\
+        buf_out[1] = 0x21U;\
+        *(uint64_t*)(buf_out +  2) = *(uint64_t*)(pkey +  0);\
+        *(uint64_t*)(buf_out + 10) = *(uint64_t*)(pkey +  8);\
+        *(uint64_t*)(buf_out + 18) = *(uint64_t*)(pkey + 16);\
+        *(uint64_t*)(buf_out + 26) = *(uint64_t*)(pkey + 24);\
+        buf[34] = pkey[32];\
+        buf_out += ENCODE_SIGNING_PUBKEY_SIZE;\
+    }
+
+#define _07_03_ENCODE_SIGNING_PUBKEY(buf_out, pkey )\
+    ENCODE_SIGNING_PUBKEY(buf_out, pkey );
+
+#define ENCODE_SIGNING_PUBKEY_NULL_SIZE 2
+#define ENCODE_SIGNING_PUBKEY_NULL(buf_out )\
+    {\
+        *buf_out++ = 0x73U;\
+        *buf_out++ = 0x00U;\
+    }
+
+#define _07_03_ENCODE_SIGNING_PUBKEY_NULL(buf_out )\
+    ENCODE_SIGNING_PUBKEY_NULL(buf_out );
+
+
+#define _0E_0E_ENCODE_HOOKOBJ(buf_out, hhash)\
+{\
+        uint8_t* hook0 = (hhash);\
+        *buf_out++ = 0xEEU;   /* hook obj start */ \
+        if (hook0 == 0) /* noop */\
+        {\
+            /* do nothing */ \
+        }\
+        else\
+        {\
+            *buf_out++ = 0x22U; /* flags = override */\
+            *buf_out++ = 0x00U;\
+            *buf_out++ = 0x00U;\
+            *buf_out++ = 0x00U;\
+            *buf_out++ = 0x01U;\
+            if (hook0 == 0xFFFFFFFFUL) /* delete operation */ \
+            {\
+                *buf_out++ = 0x7BU; /* empty createcode */ \
+                *buf_out++ = 0x00U;\
+            }\
+            else\
+            {\
+                *buf_out++ = 0x50U; /* HookHash */\
+                *buf_out++ = 0x1FU;\
+                uint64_t* d = (uint64_t*)buf_out;\
+                uint64_t* s = (uint64_t*)hook0;\
+                *d++ = *s++;\
+                *d++ = *s++;\
+                *d++ = *s++;\
+                *d++ = *s++;\
+                buf_out+=32;\
+            }\
+        }\
+        *buf_out++ = 0xE1U;\
+}
+
+#define PREPARE_HOOKSET(buf_out_master, maxlen, h, sizeout)\
+    {\
+        uint8_t* buf_out = (buf_out_master);                                            \
+        uint8_t acc[20];                                                                \
+        uint32_t cls = (uint32_t)ledger_seq();                                          \
+        hook_account(SBUF(acc));                                                        \
+        _01_02_ENCODE_TT                   (buf_out, ttHOOK_SET                     );  \
+        _02_02_ENCODE_FLAGS                (buf_out, tfCANONICAL                    );  \
+        _02_04_ENCODE_SEQUENCE             (buf_out, 0                              );  \
+        _02_26_ENCODE_FLS                  (buf_out, cls + 1                        );  \
+        _02_27_ENCODE_LLS                  (buf_out, cls + 5                        );  \
+        uint8_t* fee_ptr = buf_out;                                                     \
+        _06_08_ENCODE_DROPS_FEE            (buf_out, 0                              );  \
+        _07_03_ENCODE_SIGNING_PUBKEY_NULL  (buf_out                                 );  \
+        _08_01_ENCODE_ACCOUNT_SRC          (buf_out, acc                            );  \
+        uint32_t remaining_size = (maxlen) - (buf_out - (buf_out_master));              \
+        int64_t edlen = etxn_details((uint32_t)buf_out, remaining_size);                \
+        buf_out += edlen;                                                               \
+        *buf_out++ = 0xFBU;   /* hook array start */                                    \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[0]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[1]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[2]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[3]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[4]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[5]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[6]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[7]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[8]);                           \
+        _0E_0E_ENCODE_HOOKOBJ               (buf_out, h[9]);                           \
+        *buf_out++ = 0xF1U;  /* hook array end */                                       \
+        sizeout = (buf_out - (buf_out_master));                                         \
+        int64_t fee = etxn_fee_base(buf_out_master, sizeout);                           \
+        _06_08_ENCODE_DROPS_FEE            (fee_ptr, fee                            );  \
+    }
+
+#ifdef HAS_CALLBACK
+#define PREPARE_PAYMENT_SIMPLE_SIZE 270U
+#else
+#define PREPARE_PAYMENT_SIMPLE_SIZE 248U
+#endif
+
+#define PREPARE_PAYMENT_SIMPLE(buf_out_master, drops_amount_raw, to_address, dest_tag_raw, src_tag_raw)\
+    {\
+        uint8_t* buf_out = buf_out_master;\
+        uint8_t acc[20];\
+        uint64_t drops_amount = (drops_amount_raw);\
+        uint32_t dest_tag = (dest_tag_raw);\
+        uint32_t src_tag = (src_tag_raw);\
+        uint32_t cls = (uint32_t)ledger_seq();\
+        hook_account(SBUF(acc));\
+        _01_02_ENCODE_TT                   (buf_out, ttPAYMENT                      );      /* uint16  | size   3 */ \
+        _02_02_ENCODE_FLAGS                (buf_out, tfCANONICAL                    );      /* uint32  | size   5 */ \
+        _02_03_ENCODE_TAG_SRC              (buf_out, src_tag                        );      /* uint32  | size   5 */ \
+        _02_04_ENCODE_SEQUENCE             (buf_out, 0                              );      /* uint32  | size   5 */ \
+        _02_14_ENCODE_TAG_DST              (buf_out, dest_tag                       );      /* uint32  | size   5 */ \
+        _02_26_ENCODE_FLS                  (buf_out, cls + 1                        );      /* uint32  | size   6 */ \
+        _02_27_ENCODE_LLS                  (buf_out, cls + 5                        );      /* uint32  | size   6 */ \
+        _06_01_ENCODE_DROPS_AMOUNT         (buf_out, drops_amount                   );      /* amount  | size   9 */ \
+        uint8_t* fee_ptr = buf_out;\
+        _06_08_ENCODE_DROPS_FEE            (buf_out, 0                              );      /* amount  | size   9 */ \
+        _07_03_ENCODE_SIGNING_PUBKEY_NULL  (buf_out                                 );      /* pk      | size  35 */ \
+        _08_01_ENCODE_ACCOUNT_SRC          (buf_out, acc                            );      /* account | size  22 */ \
+        _08_03_ENCODE_ACCOUNT_DST          (buf_out, to_address                     );      /* account | size  22 */ \
+        int64_t edlen = etxn_details((uint32_t)buf_out, PREPARE_PAYMENT_SIMPLE_SIZE);       /* emitdet | size 1?? */ \
+        int64_t fee = etxn_fee_base(buf_out_master, PREPARE_PAYMENT_SIMPLE_SIZE);                                    \ 
+        _06_08_ENCODE_DROPS_FEE            (fee_ptr, fee                            );                               \
+    }
+
+#ifdef HAS_CALLBACK
+#define PREPARE_PAYMENT_SIMPLE_TRUSTLINE_SIZE 309
+#else
+#define PREPARE_PAYMENT_SIMPLE_TRUSTLINE_SIZE 287
+#endif
+#define PREPARE_PAYMENT_SIMPLE_TRUSTLINE(buf_out_master, tlamt, to_address, dest_tag_raw, src_tag_raw)\
+    {\
+        uint8_t* buf_out = buf_out_master;\
+        uint8_t acc[20];\
+        uint32_t dest_tag = (dest_tag_raw);\
+        uint32_t src_tag = (src_tag_raw);\
+        uint32_t cls = (uint32_t)ledger_seq();\
+        hook_account(SBUF(acc));\
+        _01_02_ENCODE_TT                   (buf_out, ttPAYMENT                      );      /* uint16  | size   3 */ \
+        _02_02_ENCODE_FLAGS                (buf_out, tfCANONICAL                    );      /* uint32  | size   5 */ \
+        _02_03_ENCODE_TAG_SRC              (buf_out, src_tag                        );      /* uint32  | size   5 */ \
+        _02_04_ENCODE_SEQUENCE             (buf_out, 0                              );      /* uint32  | size   5 */ \
+        _02_14_ENCODE_TAG_DST              (buf_out, dest_tag                       );      /* uint32  | size   5 */ \
+        _02_26_ENCODE_FLS                  (buf_out, cls + 1                        );      /* uint32  | size   6 */ \
+        _02_27_ENCODE_LLS                  (buf_out, cls + 5                        );      /* uint32  | size   6 */ \
+        _06_01_ENCODE_TL_AMOUNT            (buf_out, tlamt                          );      /* amount  | size  48 */ \
+        uint8_t* fee_ptr = buf_out;\
+        _06_08_ENCODE_DROPS_FEE            (buf_out, 0                              );      /* amount  | size   9 */ \
+        _07_03_ENCODE_SIGNING_PUBKEY_NULL  (buf_out                                 );      /* pk      | size  35 */ \
+        _08_01_ENCODE_ACCOUNT_SRC          (buf_out, acc                            );      /* account | size  22 */ \
+        _08_03_ENCODE_ACCOUNT_DST          (buf_out, to_address                     );      /* account | size  22 */ \
+        etxn_details((uint32_t)buf_out, PREPARE_PAYMENT_SIMPLE_TRUSTLINE_SIZE);             /* emitdet | size 1?? */  \
+        int64_t fee = etxn_fee_base(buf_out_master, PREPARE_PAYMENT_SIMPLE_TRUSTLINE_SIZE);                          \ 
+        _06_08_ENCODE_DROPS_FEE            (fee_ptr, fee                            );                               \
+    }
+
+
+
+#endif
+

hook/genesis/headers/sfcodes.h

@@ -0,0 +1,215 @@
+// For documentation please see: https://xrpl-hooks.readme.io/reference/
+// Generated using generate_sfcodes.sh
+#define sfCloseResolution ((16U << 16U) + 1U)
+#define sfMethod ((16U << 16U) + 2U)
+#define sfTransactionResult ((16U << 16U) + 3U)
+#define sfTickSize ((16U << 16U) + 16U)
+#define sfUNLModifyDisabling ((16U << 16U) + 17U)
+#define sfHookResult ((16U << 16U) + 18U)
+#define sfLedgerEntryType ((1U << 16U) + 1U)
+#define sfTransactionType ((1U << 16U) + 2U)
+#define sfSignerWeight ((1U << 16U) + 3U)
+#define sfTransferFee ((1U << 16U) + 4U)
+#define sfVersion ((1U << 16U) + 16U)
+#define sfHookStateChangeCount ((1U << 16U) + 17U)
+#define sfHookEmitCount ((1U << 16U) + 18U)
+#define sfHookExecutionIndex ((1U << 16U) + 19U)
+#define sfHookApiVersion ((1U << 16U) + 20U)
+#define sfNetworkID ((2U << 16U) + 1U)
+#define sfFlags ((2U << 16U) + 2U)
+#define sfSourceTag ((2U << 16U) + 3U)
+#define sfSequence ((2U << 16U) + 4U)
+#define sfPreviousTxnLgrSeq ((2U << 16U) + 5U)
+#define sfLedgerSequence ((2U << 16U) + 6U)
+#define sfCloseTime ((2U << 16U) + 7U)
+#define sfParentCloseTime ((2U << 16U) + 8U)
+#define sfSigningTime ((2U << 16U) + 9U)
+#define sfExpiration ((2U << 16U) + 10U)
+#define sfTransferRate ((2U << 16U) + 11U)
+#define sfWalletSize ((2U << 16U) + 12U)
+#define sfOwnerCount ((2U << 16U) + 13U)
+#define sfDestinationTag ((2U << 16U) + 14U)
+#define sfHighQualityIn ((2U << 16U) + 16U)
+#define sfHighQualityOut ((2U << 16U) + 17U)
+#define sfLowQualityIn ((2U << 16U) + 18U)
+#define sfLowQualityOut ((2U << 16U) + 19U)
+#define sfQualityIn ((2U << 16U) + 20U)
+#define sfQualityOut ((2U << 16U) + 21U)
+#define sfStampEscrow ((2U << 16U) + 22U)
+#define sfBondAmount ((2U << 16U) + 23U)
+#define sfLoadFee ((2U << 16U) + 24U)
+#define sfOfferSequence ((2U << 16U) + 25U)
+#define sfFirstLedgerSequence ((2U << 16U) + 26U)
+#define sfLastLedgerSequence ((2U << 16U) + 27U)
+#define sfTransactionIndex ((2U << 16U) + 28U)
+#define sfOperationLimit ((2U << 16U) + 29U)
+#define sfReferenceFeeUnits ((2U << 16U) + 30U)
+#define sfReserveBase ((2U << 16U) + 31U)
+#define sfReserveIncrement ((2U << 16U) + 32U)
+#define sfSetFlag ((2U << 16U) + 33U)
+#define sfClearFlag ((2U << 16U) + 34U)
+#define sfSignerQuorum ((2U << 16U) + 35U)
+#define sfCancelAfter ((2U << 16U) + 36U)
+#define sfFinishAfter ((2U << 16U) + 37U)
+#define sfSignerListID ((2U << 16U) + 38U)
+#define sfSettleDelay ((2U << 16U) + 39U)
+#define sfTicketCount ((2U << 16U) + 40U)
+#define sfTicketSequence ((2U << 16U) + 41U)
+#define sfNFTokenTaxon ((2U << 16U) + 42U)
+#define sfMintedNFTokens ((2U << 16U) + 43U)
+#define sfBurnedNFTokens ((2U << 16U) + 44U)
+#define sfHookStateCount ((2U << 16U) + 45U)
+#define sfEmitGeneration ((2U << 16U) + 46U)
+#define sfLockCount ((2U << 16U) + 47U)
+#define sfRewardTime ((2U << 16U) + 98U)
+#define sfRewardLgrFirst ((2U << 16U) + 99U)
+#define sfRewardLgrLast ((2U << 16U) + 100U)
+#define sfIndexNext ((3U << 16U) + 1U)
+#define sfIndexPrevious ((3U << 16U) + 2U)
+#define sfBookNode ((3U << 16U) + 3U)
+#define sfOwnerNode ((3U << 16U) + 4U)
+#define sfBaseFee ((3U << 16U) + 5U)
+#define sfExchangeRate ((3U << 16U) + 6U)
+#define sfLowNode ((3U << 16U) + 7U)
+#define sfHighNode ((3U << 16U) + 8U)
+#define sfDestinationNode ((3U << 16U) + 9U)
+#define sfCookie ((3U << 16U) + 10U)
+#define sfServerVersion ((3U << 16U) + 11U)
+#define sfNFTokenOfferNode ((3U << 16U) + 12U)
+#define sfEmitBurden ((3U << 16U) + 13U)
+#define sfHookInstructionCount ((3U << 16U) + 17U)
+#define sfHookReturnCode ((3U << 16U) + 18U)
+#define sfReferenceCount ((3U << 16U) + 19U)
+#define sfRewardAccumulator ((3U << 16U) + 100U)
+#define sfEmailHash ((4U << 16U) + 1U)
+#define sfTakerPaysCurrency ((10U << 16U) + 1U)
+#define sfTakerPaysIssuer ((10U << 16U) + 2U)
+#define sfTakerGetsCurrency ((10U << 16U) + 3U)
+#define sfTakerGetsIssuer ((10U << 16U) + 4U)
+#define sfLedgerHash ((5U << 16U) + 1U)
+#define sfParentHash ((5U << 16U) + 2U)
+#define sfTransactionHash ((5U << 16U) + 3U)
+#define sfAccountHash ((5U << 16U) + 4U)
+#define sfPreviousTxnID ((5U << 16U) + 5U)
+#define sfLedgerIndex ((5U << 16U) + 6U)
+#define sfWalletLocator ((5U << 16U) + 7U)
+#define sfRootIndex ((5U << 16U) + 8U)
+#define sfAccountTxnID ((5U << 16U) + 9U)
+#define sfNFTokenID ((5U << 16U) + 10U)
+#define sfEmitParentTxnID ((5U << 16U) + 11U)
+#define sfEmitNonce ((5U << 16U) + 12U)
+#define sfEmitHookHash ((5U << 16U) + 13U)
+#define sfBookDirectory ((5U << 16U) + 16U)
+#define sfInvoiceID ((5U << 16U) + 17U)
+#define sfNickname ((5U << 16U) + 18U)
+#define sfAmendment ((5U << 16U) + 19U)
+#define sfHookOn ((5U << 16U) + 20U)
+#define sfDigest ((5U << 16U) + 21U)
+#define sfChannel ((5U << 16U) + 22U)
+#define sfConsensusHash ((5U << 16U) + 23U)
+#define sfCheckID ((5U << 16U) + 24U)
+#define sfValidatedHash ((5U << 16U) + 25U)
+#define sfPreviousPageMin ((5U << 16U) + 26U)
+#define sfNextPageMin ((5U << 16U) + 27U)
+#define sfNFTokenBuyOffer ((5U << 16U) + 28U)
+#define sfNFTokenSellOffer ((5U << 16U) + 29U)
+#define sfHookStateKey ((5U << 16U) + 30U)
+#define sfHookHash ((5U << 16U) + 31U)
+#define sfHookNamespace ((5U << 16U) + 32U)
+#define sfHookSetTxnID ((5U << 16U) + 33U)
+#define sfOfferID ((5U << 16U) + 34U)
+#define sfEscrowID ((5U << 16U) + 35U)
+#define sfURITokenID ((5U << 16U) + 36U)
+#define sfAmount ((6U << 16U) + 1U)
+#define sfBalance ((6U << 16U) + 2U)
+#define sfLimitAmount ((6U << 16U) + 3U)
+#define sfTakerPays ((6U << 16U) + 4U)
+#define sfTakerGets ((6U << 16U) + 5U)
+#define sfLowLimit ((6U << 16U) + 6U)
+#define sfHighLimit ((6U << 16U) + 7U)
+#define sfFee ((6U << 16U) + 8U)
+#define sfSendMax ((6U << 16U) + 9U)
+#define sfDeliverMin ((6U << 16U) + 10U)
+#define sfMinimumOffer ((6U << 16U) + 16U)
+#define sfRippleEscrow ((6U << 16U) + 17U)
+#define sfDeliveredAmount ((6U << 16U) + 18U)
+#define sfNFTokenBrokerFee ((6U << 16U) + 19U)
+#define sfHookCallbackFee ((6U << 16U) + 20U)
+#define sfLockedBalance ((6U << 16U) + 21U)
+#define sfPublicKey ((7U << 16U) + 1U)
+#define sfMessageKey ((7U << 16U) + 2U)
+#define sfSigningPubKey ((7U << 16U) + 3U)
+#define sfTxnSignature ((7U << 16U) + 4U)
+#define sfURI ((7U << 16U) + 5U)
+#define sfSignature ((7U << 16U) + 6U)
+#define sfDomain ((7U << 16U) + 7U)
+#define sfFundCode ((7U << 16U) + 8U)
+#define sfRemoveCode ((7U << 16U) + 9U)
+#define sfExpireCode ((7U << 16U) + 10U)
+#define sfCreateCode ((7U << 16U) + 11U)
+#define sfMemoType ((7U << 16U) + 12U)
+#define sfMemoData ((7U << 16U) + 13U)
+#define sfMemoFormat ((7U << 16U) + 14U)
+#define sfFulfillment ((7U << 16U) + 16U)
+#define sfCondition ((7U << 16U) + 17U)
+#define sfMasterSignature ((7U << 16U) + 18U)
+#define sfUNLModifyValidator ((7U << 16U) + 19U)
+#define sfValidatorToDisable ((7U << 16U) + 20U)
+#define sfValidatorToReEnable ((7U << 16U) + 21U)
+#define sfHookStateData ((7U << 16U) + 22U)
+#define sfHookReturnString ((7U << 16U) + 23U)
+#define sfHookParameterName ((7U << 16U) + 24U)
+#define sfHookParameterValue ((7U << 16U) + 25U)
+#define sfBlob ((7U << 16U) + 26U)
+#define sfAccount ((8U << 16U) + 1U)
+#define sfOwner ((8U << 16U) + 2U)
+#define sfDestination ((8U << 16U) + 3U)
+#define sfIssuer ((8U << 16U) + 4U)
+#define sfAuthorize ((8U << 16U) + 5U)
+#define sfUnauthorize ((8U << 16U) + 6U)
+#define sfRegularKey ((8U << 16U) + 8U)
+#define sfNFTokenMinter ((8U << 16U) + 9U)
+#define sfEmitCallback ((8U << 16U) + 10U)
+#define sfHookAccount ((8U << 16U) + 16U)
+#define sfIndexes ((19U << 16U) + 1U)
+#define sfHashes ((19U << 16U) + 2U)
+#define sfAmendments ((19U << 16U) + 3U)
+#define sfNFTokenOffers ((19U << 16U) + 4U)
+#define sfHookNamespaces ((19U << 16U) + 5U)
+#define sfPaths ((18U << 16U) + 1U)
+#define sfTransactionMetaData ((14U << 16U) + 2U)
+#define sfCreatedNode ((14U << 16U) + 3U)
+#define sfDeletedNode ((14U << 16U) + 4U)
+#define sfModifiedNode ((14U << 16U) + 5U)
+#define sfPreviousFields ((14U << 16U) + 6U)
+#define sfFinalFields ((14U << 16U) + 7U)
+#define sfNewFields ((14U << 16U) + 8U)
+#define sfTemplateEntry ((14U << 16U) + 9U)
+#define sfMemo ((14U << 16U) + 10U)
+#define sfSignerEntry ((14U << 16U) + 11U)
+#define sfNFToken ((14U << 16U) + 12U)
+#define sfEmitDetails ((14U << 16U) + 13U)
+#define sfHook ((14U << 16U) + 14U)
+#define sfSigner ((14U << 16U) + 16U)
+#define sfMajority ((14U << 16U) + 18U)
+#define sfDisabledValidator ((14U << 16U) + 19U)
+#define sfEmittedTxn ((14U << 16U) + 20U)
+#define sfHookExecution ((14U << 16U) + 21U)
+#define sfHookDefinition ((14U << 16U) + 22U)
+#define sfHookParameter ((14U << 16U) + 23U)
+#define sfHookGrant ((14U << 16U) + 24U)
+#define sfSigners ((15U << 16U) + 3U)
+#define sfSignerEntries ((15U << 16U) + 4U)
+#define sfTemplate ((15U << 16U) + 5U)
+#define sfNecessary ((15U << 16U) + 6U)
+#define sfSufficient ((15U << 16U) + 7U)
+#define sfAffectedNodes ((15U << 16U) + 8U)
+#define sfMemos ((15U << 16U) + 9U)
+#define sfNFTokens ((15U << 16U) + 10U)
+#define sfHooks ((15U << 16U) + 11U)
+#define sfMajorities ((15U << 16U) + 16U)
+#define sfDisabledValidators ((15U << 16U) + 17U)
+#define sfHookExecutions ((15U << 16U) + 18U)
+#define sfHookParameters ((15U << 16U) + 19U)
+#define sfHookGrants ((15U << 16U) + 20U)
+#define sfActiveValidators ((15U << 16U) + 95U)

hook/genesis/headers/types.h

@@ -0,0 +1,239 @@
+#include <stdint.h>
+
+// 8 byte-int = 1 bytes
+#define SFL_CLOSERESOLUTION 1
+#define SFL_METHOD 1
+#define SFL_TRANSACTIONRESULT 1
+#define SFL_TICKSIZE 1
+#define SFL_UNLMODIFYDISABLING 1
+#define SFL_HOOKRESULT 1
+// 16 byte-int = 2 bytes
+#define SFL_LEDGERENTRYTYPE 2
+#define SFL_TRANSACTIONTYPE 2
+#define SFL_SIGNERWEIGHT 2
+#define SFL_TRANSFERFEE 2
+#define SFL_VERSION 2
+#define SFL_HOOKSTATECHANGECOUNT 2
+#define SFL_HOOKEMITCOUNT 2
+#define SFL_HOOKEXECUTIONINDEX 2
+#define SFL_HOOKAPIVERSION 2
+// 32 byte-int = 4 bytes
+#define SFL_NETWORKID 4
+#define SFL_FLAGS 4
+#define SFL_SOURCETAG 4
+#define SFL_SEQUENCE 4
+#define SFL_PREVIOUSTXNLGRSEQ 4
+#define SFL_LEDGERSEQUENCE 4
+#define SFL_CLOSETIME 4
+#define SFL_PARENTCLOSETIME 4
+#define SFL_SIGNINGTIME 4
+#define SFL_EXPIRATION 4
+#define SFL_TRANSFERRATE 4
+#define SFL_WALLETSIZE 4
+#define SFL_OWNERCOUNT 4
+#define SFL_DESTINATIONTAG 4
+#define SFL_HIGHQUALITYIN 4
+#define SFL_HIGHQUALITYOUT 4
+#define SFL_LOWQUALITYIN 4
+#define SFL_LOWQUALITYOUT 4
+#define SFL_QUALITYIN 4
+#define SFL_QUALITYOUT 4
+#define SFL_STAMPESCROW 4
+#define SFL_BONDAMOUNT 4
+#define SFL_LOADFEE 4
+#define SFL_OFFERSEQUENCE 4
+#define SFL_FIRSTLEDGERSEQUENCE 4
+#define SFL_LASTLEDGERSEQUENCE 4
+#define SFL_TRANSACTIONINDEX 4
+#define SFL_OPERATIONLIMIT 4
+#define SFL_REFERENCEFEEUNITS 4
+#define SFL_RESERVEBASE 4
+#define SFL_RESERVEINCREMENT 4
+#define SFL_SETFLAG 4
+#define SFL_CLEARFLAG 4
+#define SFL_SIGNERQUORUM 4
+#define SFL_CANCELAFTER 4
+#define SFL_FINISHAFTER 4
+#define SFL_SIGNERLISTID 4
+#define SFL_SETTLEDELAY 4
+#define SFL_TICKETCOUNT 4
+#define SFL_TICKETSEQUENCE 4
+#define SFL_NFTOKENTAXON 4
+#define SFL_MINTEDNFTOKENS 4
+#define SFL_BURNEDNFTOKENS 4
+#define SFL_HOOKSTATECOUNT 4
+#define SFL_EMITGENERATION 4
+#define SFL_LOCKCOUNT 4
+#define SFL_REWARDTIME 4
+#define SFL_REWARDLGRFIRST 4
+#define SFL_REWARDLGRLAST 4
+#define SFL_FIRSTNFTOKENSEQUENCE 4
+// 64 byte-int = 8 bytes
+#define SFL_INDEX_NEXT 8
+#define SFL_INDEX_PREVIOUS 8
+#define SFL_BOOK_NODE 8
+#define SFL_OWNER_NODE 8
+#define SFL_BASE_FEE 8
+#define SFL_EXCHANGE_RATE 8
+#define SFL_LOW_NODE 8
+#define SFL_HIGH_NODE 8
+#define SFL_DESTINATION_NODE 8
+#define SFL_COOKIE 8
+#define SFL_SERVER_VERSION 8
+#define SFL_EMIT_BURDEN 8
+#define SFL_NFTOKEN_OFFER_NODE 8
+#define SFL_HOOK_INSTRUCTION_COUNT 8
+#define SFL_HOOK_RETURN_CODE 8
+#define SFL_REFERENCE_COUNT 8
+#define SFL_REWARD_ACCUMULATOR 8
+// 128 byte-int = 4 bytes
+#define SFL_EMAIL_HASH 128
+// 160 byte-int = 4 bytes
+#define SFL_TAKER_PAYS_CURRENCY 160
+#define SFL_TAKER_PAYS_ISSUER 160
+#define SFL_TAKER_GETS_CURRENCY 160
+#define SFL_TAKER_GETS_ISSUER 160
+// 256 byte-int = ??? bytes
+#define SFL_LEDGER_HASH 256
+#define SFL_PARENT_HASH 256
+#define SFL_TRANSACTION_HASH 256
+#define SFL_ACCOUNT_HASH 256
+#define SFL_HOOK_ON 256
+#define SFL_PREVIOUS_TXN_ID 256
+#define SFL_LEDGER_INDEX 256
+#define SFL_WALLET_LOCATOR 256
+#define SFL_ROOT_INDEX 256
+#define SFL_ACCOUNT_TXN_ID 256
+#define SFL_NFTOKEN_ID 256
+#define SFL_EMIT_PARENT_TXN_ID 256
+#define SFL_EMIT_NONCE 256
+#define SFL_EMIT_HOOK_HASH 256
+// 256 byte-int = ??? bytes
+#define SFL_BOOK_DIRECTORY 256
+#define SFL_INVOICE_ID 256
+#define SFL_NICKNAME 256
+#define SFL_AMENDMENT 256
+#define SFL_DIGEST 256
+#define SFL_CHANNEL 256
+#define SFL_CONSENSUS_HASH 256
+#define SFL_CHECK_ID 256
+#define SFL_VALIDATED_HASH 256
+#define SFL_PREVIOUS_PAGE_MIN 256
+#define SFL_NEXT_PAGE_MIN 256
+#define SFL_NFTOKEN_BUY_OFFER 256
+#define SFL_NFTOKEN_SELL_OFFER 256
+#define SFL_HOOK_STATE_KEY 256
+#define SFL_HOOK_HASH 256
+#define SFL_HOOK_NAMESPACE 256
+#define SFL_HOOK_SET_TXN_ID 256
+#define SFL_OFFER_ID 256
+#define SFL_ESCROW_ID 256
+#define SFL_URITOKEN_ID 256
+// 20 bytes
+#define SFL_AMOUNT 20
+#define SFL_BALANCE 20
+#define SFL_LIMIT_AMOUNT 20
+#define SFL_TAKER_PAYS 20
+#define SFL_TAKER_GETS 20
+#define SFL_LOW_LIMIT 20
+#define SFL_HIGH_LIMIT 20
+#define SFL_FEE 20
+#define SFL_SEND_MAX 20
+#define SFL_DELIVER_MIN 20
+#define SFL_LOCKED_BALANCE 20
+// Unimplemented
+#define SFL_AMOUNT_MINIMUM_OFFER 8
+#define SFL_AMOUNT_RIPPLE_ESCROW 8
+#define SFL_AMOUNT_DELIVERED_AMOUNT 8
+#define SFL_AMOUNT_NFTOKEN_BROKER_FEE 8
+#define SFL_AMOUNT_HOOK_CALLBACK_FEE 8
+#define SFL_AMOUNT_BASE_FEE_DROPS 8
+#define SFL_AMOUNT_RESERVE_BASE_DROPS 8
+#define SFL_AMOUNT_RESERVE_INCREMENT_DROPS 8
+// Unimplemented
+#define SFL_VL_PUBLIC_KEY 64
+#define SFL_VL_MESSAGE_KEY 64
+#define SFL_VL_SIGNING_PUB_KEY 64
+// Unimplemented
+#define SFL_VL_TXN_SIGNATURE 96
+// Unimplemented
+#define SFL_VL_URI 256
+// Unimplemented
+#define SFL_VL_SIGNATURE 96
+// Unimplemented
+#define SFL_VL_DOMAIN 256
+#define SFL_VL_FUND_CODE 256
+#define SFL_VL_REMOVE_CODE 256
+#define SFL_VL_EXPIRE_CODE 256
+#define SFL_VL_CREATE_CODE 256
+#define SFL_VL_MEMO_TYPE 256
+#define SFL_VL_MEMO_DATA 256
+#define SFL_VL_MEMO_FORMAT 256
+#define SFL_VL_FULFILLMENT 256
+#define SFL_VL_CONDITION 256
+// Unimplemented
+#define SFL_VL_MASTER_SIGNATURE 96
+// Unimplemented
+#define SFL_VL_UNL_MODIFY_VALIDATOR 256
+#define SFL_VL_VALIDATOR_TO_DISABLE 256
+#define SFL_VL_VALIDATOR_TO_RE_ENABLE 256
+#define SFL_VL_HOOK_STATE_DATA 256
+#define SFL_VL_HOOK_RETURN_STRING 256
+#define SFL_VL_HOOK_PARAMETER_NAME 256
+#define SFL_VL_HOOK_PARAMETER_VALUE 256
+#define SFL_VL_BLOB 256
+// 20 bytes
+#define SFL_ACCOUNT 20
+#define SFL_OWNER 20
+#define SFL_DESTINATION 20
+#define SFL_ISSUER 20
+#define SFL_AUTHORIZE 20
+#define SFL_UNAUTHORIZE 20
+#define SFL_REGULAR_KEY 20
+#define SFL_NFTOKEN_MINTER 20
+#define SFL_EMIT_CALLBACK 20
+#define SFL_HOOK_ACCOUNT 20
+#define SFL_NFTOKEN_MINTER 20
+// Unimplemented
+#define SFL_PATHS 1
+// Unimplemented
+#define SFL_VECTOR256_INDEXES 32
+#define SFL_VECTOR256_HASHES 32
+#define SFL_VECTOR256_AMENDMENTS 32
+#define SFL_VECTOR256_NFTOKEN_OFFERS 32
+#define SFL_VECTOR256_HOOK_NAMESPACES 32
+// Unimplemented
+#define SFL_TRANSACTION_META_DATA 1
+#define SFL_CREATED_NODE 1
+#define SFL_DELETED_NODE 1
+#define SFL_MODIFIED_NODE 1
+#define SFL_PREVIOUS_FIELDS 1
+#define SFL_FINAL_FIELDS 1
+#define SFL_NEW_FIELDS 1
+#define SFL_TEMPLATE_ENTRY 1
+#define SFL_MEMO 1
+#define SFL_SIGNER_ENTRY 1
+#define SFL_NFTOKEN 1
+#define SFL_EMIT_DETAILS 1
+#define SFL_HOOK 1
+#define SFL_SIGNER 1
+#define SFL_MAJORITY 1
+#define SFL_DISABLED_VALIDATOR 1
+#define SFL_EMITTED_TXN 1
+#define SFL_HOOK_EXECUTION 1
+#define SFL_HOOK_DEFINITION 1
+#define SFL_HOOK_PARAMETER 1
+#define SFL_HOOK_GRANT 1
+#define SFL_SIGNERS 1
+#define SFL_SIGNER_ENTRIES 1
+#define SFL_TEMPLATE 1
+#define SFL_NECESSARY 1
+#define SFL_SUFFICIENT 1
+#define SFL_AFFECTED_NODES 1
+#define SFL_MEMOS 1
+#define SFL_NFTOKENS 1
+#define SFL_HOOKS 1
+#define SFL_MAJORITIES 1
+#define SFL_DISABLED_VALIDATORS 1
+#define SFL_HOOK_EXECUTIONS 1
+#define SFL_HOOK_EXECUTION 1

hook/genesis/makefile

@@ -1,9 +1,9 @@
 all: reward govern mint
 accept:
-	wasmcc accept.c -o accept.wasm -Oz -Wl,--allow-undefined  -I../
+	wasmcc accept.c -o accept.wasm -Oz -Wl,--allow-undefined  -I./headers
 	hook-cleaner accept.wasm
 reward:
-	wasmcc reward.c -o reward.wasm -Oz -Wl,--allow-undefined  -I../
+	wasmcc reward.c -o reward.wasm -Oz -Wl,--allow-undefined  -I./headers
 	wasm-opt reward.wasm -o reward.wasm \
 		--shrink-level=100000000 \
 		--coalesce-locals-learning \
@@ -58,7 +58,7 @@ reward:
 	hook-cleaner reward.wasm
 	guard_checker reward.wasm
 govern:
-	wasmcc govern.c -o govern.wasm -Oz -Wl,--allow-undefined  -I../
+	wasmcc govern.c -o govern.wasm -Oz -Wl,--allow-undefined  -I./headers
 	wasm-opt govern.wasm -o govern.wasm \
 		--shrink-level=100000000 \
 		--coalesce-locals-learning \
@@ -113,7 +113,7 @@ govern:
 	hook-cleaner govern.wasm
 	guard_checker govern.wasm
 mint:
-	wasmcc mint.c -o mint.wasm -Oz -Wl,--allow-undefined  -I../
+	wasmcc mint.c -o mint.wasm -Oz -Wl,--allow-undefined  -I./headers
 	wasm-opt mint.wasm -o mint.wasm \
 		--shrink-level=100000000 \
 		--coalesce-locals-learning \
@@ -142,5 +142,5 @@ mint:
 	hook-cleaner mint.wasm
 	guard_checker mint.wasm
 nftoken:
-	wasmcc nftoken.c -o nftoken.wasm -Oz -Wl,--allow-undefined  -I../
+	wasmcc nftoken.c -o nftoken.wasm -Oz -Wl,--allow-undefined  -I./headers
 	hook-cleaner nftoken.wasm

hook/hookapi.h

@@ -49,4 +49,7 @@
 #include "macro.h"
 #include "tts.h"
 
+#include "ls_flags.h"
+#include "tx_flags.h"
+
 #endif

hook/ls_flags.h

@@ -0,0 +1,75 @@
+// Generated using generate_lsflags.sh
+
+#ifndef HOOKLSFLAGS_INCLUDED
+#define HOOKLSFLAGS_INCLUDED 1
+
+enum ltACCOUNT_ROOT {
+    lsfPasswordSpent = 0x00010000,
+    lsfRequireDestTag = 0x00020000,
+    lsfRequireAuth = 0x00040000,
+    lsfDisallowXRP = 0x00080000,
+    lsfDisableMaster = 0x00100000,
+    lsfNoFreeze = 0x00200000,
+    lsfGlobalFreeze = 0x00400000,
+    lsfDefaultRipple = 0x00800000,
+    lsfDepositAuth = 0x01000000,
+    lsfTshCollect = 0x02000000,
+    lsfDisallowIncomingNFTokenOffer = 0x04000000,
+    lsfDisallowIncomingCheck = 0x08000000,
+    lsfDisallowIncomingPayChan = 0x10000000,
+    lsfDisallowIncomingTrustline = 0x20000000,
+    lsfURITokenIssuer = 0x40000000,
+    lsfDisallowIncomingRemit = 0x80000000,
+    lsfAllowTrustLineClawback = 0x00001000,
+};
+enum ltOFFER {
+    lsfPassive = 0x00010000,
+    lsfSell = 0x00020000,
+};
+enum ltRIPPLE_STATE {
+    lsfLowReserve = 0x00010000,
+    lsfHighReserve = 0x00020000,
+    lsfLowAuth = 0x00040000,
+    lsfHighAuth = 0x00080000,
+    lsfLowNoRipple = 0x00100000,
+    lsfHighNoRipple = 0x00200000,
+    lsfLowFreeze = 0x00400000,
+    lsfHighFreeze = 0x00800000,
+    lsfLowDeepFreeze = 0x02000000,
+    lsfHighDeepFreeze = 0x04000000,
+    lsfAMMNode = 0x01000000,
+};
+enum ltSIGNER_LIST {
+    lsfOneOwnerCount = 0x00010000,
+};
+enum ltDIR_NODE {
+    lsfNFTokenBuyOffers = 0x00000001,
+    lsfNFTokenSellOffers = 0x00000002,
+    lsfEmittedDir = 0x00000004,
+};
+enum ltNFTOKEN_OFFER {
+    lsfSellNFToken = 0x00000001,
+};
+enum ltURI_TOKEN {
+    lsfBurnable = 0x00000001,
+};
+enum remarks {
+    lsfImmutable = 1,
+};
+enum ltMPTOKEN_ISSUANCE {
+    lsfMPTLocked = 0x00000001,
+    lsfMPTCanLock = 0x00000002,
+    lsfMPTRequireAuth = 0x00000004,
+    lsfMPTCanEscrow = 0x00000008,
+    lsfMPTCanTrade = 0x00000010,
+    lsfMPTCanTransfer = 0x00000020,
+    lsfMPTCanClawback = 0x00000040,
+};
+enum ltMPTOKEN {
+    lsfMPTAuthorized = 0x00000002,
+};
+enum ltCREDENTIAL {
+    lsfAccepted = 0x00010000,
+};
+
+#endif // HOOKLSFLAGS_INCLUDED

hook/sfcodes.h

@@ -152,11 +152,14 @@
 #define sfEscrowID ((5U << 16U) + 35U)
 #define sfURITokenID ((5U << 16U) + 36U)
 #define sfDomainID ((5U << 16U) + 37U)
-#define sfGovernanceFlags ((5U << 16U) + 99U)
-#define sfGovernanceMarks ((5U << 16U) + 98U)
-#define sfEmittedTxnID ((5U << 16U) + 97U)
-#define sfHookCanEmit ((5U << 16U) + 96U)
+#define sfManifestID ((5U << 16U) + 91U)
+#define sfHookOnOutgoing ((5U << 16U) + 93U)
+#define sfHookOnIncoming ((5U << 16U) + 94U)
 #define sfCron ((5U << 16U) + 95U)
+#define sfHookCanEmit ((5U << 16U) + 96U)
+#define sfEmittedTxnID ((5U << 16U) + 97U)
+#define sfGovernanceMarks ((5U << 16U) + 98U)
+#define sfGovernanceFlags ((5U << 16U) + 99U)
 #define sfNumber ((9U << 16U) + 1U)
 #define sfAmount ((6U << 16U) + 1U)
 #define sfBalance ((6U << 16U) + 2U)
@@ -187,6 +190,7 @@
 #define sfSignatureReward ((6U << 16U) + 29U)
 #define sfMinAccountCreateAmount ((6U << 16U) + 30U)
 #define sfLPTokenBalance ((6U << 16U) + 31U)
+#define sfTrustLineRewardAccumulator ((6U << 16U) + 99U)
 #define sfPublicKey ((7U << 16U) + 1U)
 #define sfMessageKey ((7U << 16U) + 2U)
 #define sfSigningPubKey ((7U << 16U) + 3U)
@@ -218,6 +222,7 @@
 #define sfProvider ((7U << 16U) + 30U)
 #define sfMPTokenMetadata ((7U << 16U) + 31U)
 #define sfCredentialType ((7U << 16U) + 32U)
+#define sfHookName ((7U << 16U) + 97U)
 #define sfRemarkValue ((7U << 16U) + 98U)
 #define sfRemarkName ((7U << 16U) + 99U)
 #define sfAccount ((8U << 16U) + 1U)
@@ -253,6 +258,7 @@
 #define sfIssuingChainIssue ((24U << 16U) + 2U)
 #define sfAsset ((24U << 16U) + 3U)
 #define sfAsset2 ((24U << 16U) + 4U)
+#define sfClaimCurrency ((24U << 16U) + 5U)
 #define sfXChainBridge ((25U << 16U) + 1U)
 #define sfTransactionMetaData ((14U << 16U) + 2U)
 #define sfCreatedNode ((14U << 16U) + 3U)
@@ -272,7 +278,6 @@
 #define sfDisabledValidator ((14U << 16U) + 19U)
 #define sfEmittedTxn ((14U << 16U) + 20U)
 #define sfHookExecution ((14U << 16U) + 21U)
-#define sfHookDefinition ((14U << 16U) + 22U)
 #define sfHookParameter ((14U << 16U) + 23U)
 #define sfHookGrant ((14U << 16U) + 24U)
 #define sfVoteEntry ((14U << 16U) + 25U)
@@ -284,6 +289,7 @@
 #define sfXChainCreateAccountAttestationCollectionElement ((14U << 16U) + 31U)
 #define sfPriceData ((14U << 16U) + 32U)
 #define sfCredential ((14U << 16U) + 33U)
+#define sfManifest ((14U << 16U) + 90U)
 #define sfAmountEntry ((14U << 16U) + 91U)
 #define sfMintURIToken ((14U << 16U) + 92U)
 #define sfHookEmission ((14U << 16U) + 93U)
@@ -291,6 +297,8 @@
 #define sfActiveValidator ((14U << 16U) + 95U)
 #define sfGenesisMint ((14U << 16U) + 96U)
 #define sfRemark ((14U << 16U) + 97U)
+#define sfHighReward ((14U << 16U) + 98U)
+#define sfLowReward ((14U << 16U) + 99U)
 #define sfSigners ((15U << 16U) + 3U)
 #define sfSignerEntries ((15U << 16U) + 4U)
 #define sfTemplate ((15U << 16U) + 5U)
@@ -313,9 +321,9 @@
 #define sfAuthorizeCredentials ((15U << 16U) + 26U)
 #define sfUnauthorizeCredentials ((15U << 16U) + 27U)
 #define sfAcceptedCredentials ((15U << 16U) + 28U)
-#define sfRemarks ((15U << 16U) + 97U)
-#define sfGenesisMints ((15U << 16U) + 96U)
-#define sfActiveValidators ((15U << 16U) + 95U)
-#define sfImportVLKeys ((15U << 16U) + 94U)
-#define sfHookEmissions ((15U << 16U) + 93U)
 #define sfAmounts ((15U << 16U) + 92U)
+#define sfHookEmissions ((15U << 16U) + 93U)
+#define sfImportVLKeys ((15U << 16U) + 94U)
+#define sfActiveValidators ((15U << 16U) + 95U)
+#define sfGenesisMints ((15U << 16U) + 96U)
+#define sfRemarks ((15U << 16U) + 97U)

hook/tts.h

@@ -61,6 +61,7 @@
 #define ttNFTOKEN_MODIFY 70
 #define ttPERMISSIONED_DOMAIN_SET 71
 #define ttPERMISSIONED_DOMAIN_DELETE 72
+#define ttMANIFEST_SET 91
 #define ttCRON 92
 #define ttCRON_SET 93
 #define ttREMARKS_SET 94

hook/tx_flags.h

@@ -0,0 +1,117 @@
+// Generated using generate_txflags.sh
+#include "ls_flags.h"
+#include <stdint.h>
+
+enum UniversalFlags : uint32_t {
+    tfFullyCanonicalSig = 0x80000000,
+};
+
+enum AccountSetFlags : uint32_t {
+    tfRequireDestTag = 0x00010000,
+    tfOptionalDestTag = 0x00020000,
+    tfRequireAuth = 0x00040000,
+    tfOptionalAuth = 0x00080000,
+    tfDisallowXRP = 0x00100000,
+    tfAllowXRP = 0x00200000,
+};
+
+enum AccountFlags : uint32_t {
+    asfRequireDest = 1,
+    asfRequireAuth = 2,
+    asfDisallowXRP = 3,
+    asfDisableMaster = 4,
+    asfAccountTxnID = 5,
+    asfNoFreeze = 6,
+    asfGlobalFreeze = 7,
+    asfDefaultRipple = 8,
+    asfDepositAuth = 9,
+    asfAuthorizedNFTokenMinter = 10,
+    asfTshCollect = 11,
+    asfDisallowIncomingNFTokenOffer = 12,
+    asfDisallowIncomingCheck = 13,
+    asfDisallowIncomingPayChan = 14,
+    asfDisallowIncomingTrustline = 15,
+    asfDisallowIncomingRemit = 16,
+    asfAllowTrustLineClawback = 17,
+};
+
+enum OfferCreateFlags : uint32_t {
+    tfPassive = 0x00010000,
+    tfImmediateOrCancel = 0x00020000,
+    tfFillOrKill = 0x00040000,
+    tfSell = 0x00080000,
+};
+
+enum PaymentFlags : uint32_t {
+    tfNoRippleDirect = 0x00010000,
+    tfPartialPayment = 0x00020000,
+    tfLimitQuality = 0x00040000,
+};
+
+enum TrustSetFlags : uint32_t {
+    tfSetfAuth = 0x00010000,
+    tfSetNoRipple = 0x00020000,
+    tfClearNoRipple = 0x00040000,
+    tfSetFreeze = 0x00100000,
+    tfClearFreeze = 0x00200000,
+    tfSetDeepFreeze = 0x00400000,
+    tfClearDeepFreeze = 0x00800000
+};
+
+enum EnableAmendmentFlags : uint32_t {
+    tfGotMajority = 0x00010000,
+    tfLostMajority = 0x00020000,
+    tfTestSuite = 0x80000000,
+};
+
+enum PaymentChannelClaimFlags : uint32_t {
+    tfRenew = 0x00010000,
+    tfClose = 0x00020000,
+};
+
+enum NFTokenMintFlags : uint32_t {
+    tfBurnable = 0x00000001,
+    tfOnlyXRP = 0x00000002,
+    tfTrustLine = 0x00000004,
+    tfTransferable = 0x00000008,
+    tfMutable = 0x00000010,
+    tfStrongTSH = 0x00008000,
+};
+
+enum MPTokenIssuanceCreateFlags : uint32_t {
+    tfMPTCanLock = lsfMPTCanLock,
+    tfMPTRequireAuth = lsfMPTRequireAuth,
+    tfMPTCanEscrow = lsfMPTCanEscrow,
+    tfMPTCanTrade = lsfMPTCanTrade,
+    tfMPTCanTransfer = lsfMPTCanTransfer,
+    tfMPTCanClawback = lsfMPTCanClawback,
+};
+
+enum MPTokenAuthorizeFlags : uint32_t {
+    tfMPTUnauthorize = 0x00000001,
+};
+
+enum MPTokenIssuanceSetFlags : uint32_t {
+    tfMPTLock = 0x00000001,
+    tfMPTUnlock = 0x00000002,
+};
+
+enum NFTokenCreateOfferFlags : uint32_t {
+    tfSellNFToken = 0x00000001,
+};
+
+enum ClaimRewardFlags : uint32_t {
+    tfOptOut = 0x00000001,
+};
+
+enum CronSetFlags : uint32_t {
+    tfCronUnset = 0x00000001,
+};
+
+enum AMMClawbackFlags : uint32_t {
+    tfClawTwoAssets = 0x00000001,
+};
+
+enum BridgeModifyFlags : uint32_t {
+    tfClearAccountCreateAmount = 0x00010000,
+};

include/xrpl/basics/CountedObject.h

@@ -1,75 +1,31 @@
-//------------------------------------------------------------------------------
-/*
-    This file is part of rippled: https://github.com/ripple/rippled
-    Copyright (c) 2012, 2013 Ripple Labs Inc.
-
-    Permission to use, copy, modify, and/or distribute this software for any
-    purpose  with  or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
-
-    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
-    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-//==============================================================================
-
 #ifndef RIPPLE_BASICS_COUNTEDOBJECT_H_INCLUDED
 #define RIPPLE_BASICS_COUNTEDOBJECT_H_INCLUDED
 
 #include <xrpl/beast/type_name.h>
 #include <atomic>
+#include <cstddef>
+#include <iterator>
 #include <string>
-#include <utility>
-#include <vector>
 
 namespace ripple {
 
-/** Manages all counted object types. */
 class CountedObjects
 {
 public:
-    static CountedObjects&
-    getInstance() noexcept;
-
-    using Entry = std::pair<std::string, int>;
-    using List = std::vector<Entry>;
-
-    List
-    getCounts(int minimumThreshold) const;
-
-public:
-    /** Implementation for @ref CountedObject.
-
-        @internal
-    */
     class Counter
     {
     public:
-        Counter(std::string name) noexcept : name_(std::move(name)), count_(0)
-        {
-            // Insert ourselves at the front of the lock-free linked list
-            CountedObjects& instance = CountedObjects::getInstance();
-            Counter* head;
-
-            do
-            {
-                head = instance.m_head.load();
-                next_ = head;
-            } while (instance.m_head.exchange(this) != head);
-
-            ++instance.m_count;
-        }
-
-        ~Counter() noexcept = default;
+        Counter(std::string name) noexcept;
 
         int
         increment() noexcept
         {
-            return ++count_;
+            auto const newCount = ++count_;
+
+            if (auto maxCount = maxCount_.load(); newCount > maxCount)
+                maxCount_.compare_exchange_strong(maxCount, newCount);
+
+            return newCount;
         }
 
         int
@@ -79,78 +35,136 @@ public:
         }
 
         int
-        getCount() const noexcept
+        count() const noexcept
         {
             return count_.load();
         }
 
-        Counter*
-        getNext() const noexcept
+        int
+        max() const noexcept
         {
-            return next_;
+            return std::max(count_.load(), maxCount_.load());
         }
 
         std::string const&
-        getName() const noexcept
+        name() const noexcept
         {
             return name_;
         }
 
     private:
-        std::string const name_;
-        std::atomic<int> count_;
+        friend class CountedObjects;
+
         Counter* next_;
+        std::atomic<std::uint32_t> count_ = 0;
+        std::atomic<std::uint32_t> maxCount_ = 0;
+        std::string const name_;
     };
 
-private:
-    CountedObjects() noexcept;
-    ~CountedObjects() noexcept = default;
+    class Iterator
+    {
+    public:
+        using value_type = Counter const;
+        using reference = value_type&;
+        using pointer = value_type*;
+        using difference_type = std::ptrdiff_t;
+        using iterator_category = std::forward_iterator_tag;
+
+        explicit Iterator(Counter* c = nullptr) noexcept : current_(c)
+        {
+        }
+
+        reference
+        operator*() const noexcept
+        {
+            return *current_;
+        }
+        pointer
+        operator->() const noexcept
+        {
+            return current_;
+        }
+
+        Iterator&
+        operator++() noexcept
+        {
+            current_ = current_->next_;
+            return *this;
+        }
+
+        Iterator
+        operator++(int) noexcept
+        {
+            auto tmp = *this;
+            ++*this;
+            return tmp;
+        }
+
+        bool
+        operator==(Iterator const&) const noexcept = default;
+
+    private:
+        Counter* current_;
+    };
+
+    constexpr CountedObjects() noexcept = default;
+
+    auto
+    begin() const noexcept
+    {
+        return Iterator{head_.load()};
+    }
+    auto
+    end() const noexcept
+    {
+        return Iterator{};
+    }
 
 private:
-    std::atomic<int> m_count;
-    std::atomic<Counter*> m_head;
+    friend class Counter;
+
+    std::atomic<Counter*> head_ = nullptr;
 };
 
+inline constinit CountedObjects countedObjects;
+
+inline CountedObjects::Counter::Counter(std::string name) noexcept
+    : name_(std::move(name))
+{
+    do
+        next_ = countedObjects.head_.load();
+    while (!countedObjects.head_.compare_exchange_weak(next_, this));
+}
+
 //------------------------------------------------------------------------------
 
-/** Tracks the number of instances of an object.
-
-    Derived classes have their instances counted automatically. This is used
-    for reporting purposes.
-
-    @ingroup ripple_basics
-*/
 template <class Object>
 class CountedObject
 {
-private:
-    static auto&
-    getCounter() noexcept
-    {
-        static CountedObjects::Counter c{beast::type_name<Object>()};
-        return c;
-    }
+    static CountedObjects::Counter counter_;
 
 public:
     CountedObject() noexcept
     {
-        getCounter().increment();
+        counter_.increment();
     }
-
     CountedObject(CountedObject const&) noexcept
     {
-        getCounter().increment();
+        counter_.increment();
     }
-
     CountedObject&
     operator=(CountedObject const&) noexcept = default;
-
     ~CountedObject() noexcept
     {
-        getCounter().decrement();
+        counter_.decrement();
     }
 };
 
+// Instantiation of the static CountedObject<T>::counter_
+template <class Object>
+CountedObjects::Counter CountedObject<Object>::counter_{
+    beast::type_name<Object>()};
+
 }  // namespace ripple
 
 #endif

include/xrpl/basics/Expected.h

@@ -138,14 +138,14 @@ public:
     template <typename U>
         requires std::convertible_to<U, T>
     constexpr Expected(U&& r)
-        : Base(boost::outcome_v2::success(T(std::forward<U>(r))))
+        : Base(boost::outcome_v2::in_place_type_t<T>{}, std::forward<U>(r))
     {
     }
 
     template <typename U>
         requires std::convertible_to<U, E> && (!std::is_reference_v<U>)
     constexpr Expected(Unexpected<U> e)
-        : Base(boost::outcome_v2::failure(E(std::move(e.value()))))
+        : Base(boost::outcome_v2::in_place_type_t<E>{}, std::move(e.value()))
     {
     }
 

include/xrpl/basics/SHAMapHash.h

@@ -113,7 +113,7 @@ template <>
 inline std::size_t
 extract(SHAMapHash const& key)
 {
-    return *reinterpret_cast<std::size_t const*>(key.as_uint256().data());
+    return extract(key.as_uint256());
 }
 
 }  // namespace ripple

include/xrpl/basics/SlabAllocator.h

@@ -21,283 +21,481 @@
 #define RIPPLE_BASICS_SLABALLOCATOR_H_INCLUDED
 
 #include <xrpl/basics/ByteUtilities.h>
-#include <xrpl/beast/type_name.h>
+#include <xrpl/basics/spinlock.h>
 #include <xrpl/beast/utility/instrumentation.h>
 
 #include <boost/align.hpp>
-#include <boost/container/static_vector.hpp>
-#include <boost/predef.h>
+#include <boost/predef/os.h>
 
-#include <algorithm>
+#include <array>
 #include <atomic>
-#include <cstdint>
-#include <cstring>
-#include <mutex>
-#include <vector>
+#include <bit>
 
-#if BOOST_OS_LINUX
+#include <limits>
+#include <new>
+
+#ifdef BOOST_OS_LINUX
 #include <sys/mman.h>
 #endif
 
 namespace ripple {
+namespace slab {
+namespace detail {
 
-template <typename Type>
-class SlabAllocator
+/// Alignment for hugepage support.
+inline constexpr std::size_t pageSize = megabytes(std::size_t(2));
+
+/** Allocate a new 2MB-aligned data buffer.
+
+    @param size Size of the buffer to allocate in bytes.
+    @return Pointer to allocated memory, or nullptr on failure.
+
+    @note On Linux, advises the kernel to back the allocation with
+          transparent huge pages if available.
+ */
+[[nodiscard, gnu::malloc]] inline std::uint8_t*
+allocateBuffer(std::size_t size) noexcept
 {
-    static_assert(
-        sizeof(Type) >= sizeof(std::uint8_t*),
-        "SlabAllocator: the requested object must be larger than a pointer.");
+    auto ptr = reinterpret_cast<std::uint8_t*>(
+        boost::alignment::aligned_alloc(pageSize, size));
 
-    static_assert(alignof(Type) == 8 || alignof(Type) == 4);
+#if BOOST_OS_LINUX
+    if (ptr != nullptr) [[likely]]
+        madvise(ptr, size, MADV_HUGEPAGE);
+#endif
 
-    /** A block of memory that is owned by a slab allocator */
-    struct SlabBlock
+    return ptr;
+}
+
+/** Deallocate a buffer previously allocated by allocateBuffer.
+
+    @param ptr Pointer to buffer, or nullptr (no-op).
+ */
+inline void
+deallocateBuffer(std::uint8_t* ptr) noexcept
+{
+    boost::alignment::aligned_free(ptr);
+}
+
+//------------------------------------------------------------------------------
+
+/** A block of memory metadata for slab allocators.
+
+    Each block manages a single slab buffer and its associated free list.
+    Blocks are linked together to form a list of slabs per allocator.
+
+    @note slab_t instances are intentionally never destroyed or reclaimed
+          once allocated, to support lock-free iteration of lists of slabs
+          without introducing ABA hazards. The data buffer the class holds
+          can be released independently.
+ */
+struct slab_t
+{
+    /** A node in the intrusive free list.
+
+        Constructed in-place within free memory blocks. The next pointer
+        is const because nodes are never modified after construction;
+        they are simply constructed anew when reused.
+     */
+    struct item_t
     {
-        // A mutex to protect the freelist for this block:
-        std::mutex m_;
+        item_t* const next;
 
-        // A linked list of appropriately sized free buffers:
-        std::uint8_t* l_ = nullptr;
-
-        // The next memory block
-        SlabBlock* next_;
-
-        // The underlying memory block:
-        std::uint8_t const* const p_ = nullptr;
-
-        // The extent of the underlying memory block:
-        std::size_t const size_;
-
-        SlabBlock(
-            SlabBlock* next,
-            std::uint8_t* data,
-            std::size_t size,
-            std::size_t item)
-            : next_(next), p_(data), size_(size)
+        constexpr explicit item_t(item_t* n) noexcept : next(n)
         {
-            // We don't need to grab the mutex here, since we're the only
-            // ones with access at this moment.
-
-            while (data + item <= p_ + size_)
-            {
-                // Use memcpy to avoid unaligned UB
-                // (will optimize to equivalent code)
-                std::memcpy(data, &l_, sizeof(std::uint8_t*));
-                l_ = data;
-                data += item;
-            }
-        }
-
-        ~SlabBlock()
-        {
-            // Calling this destructor will release the allocated memory but
-            // will not properly destroy any objects that are constructed in
-            // the block itself.
-        }
-
-        SlabBlock(SlabBlock const& other) = delete;
-        SlabBlock&
-        operator=(SlabBlock const& other) = delete;
-
-        SlabBlock(SlabBlock&& other) = delete;
-        SlabBlock&
-        operator=(SlabBlock&& other) = delete;
-
-        /** Determines whether the given pointer belongs to this allocator */
-        bool
-        own(std::uint8_t const* p) const noexcept
-        {
-            return (p >= p_) && (p < p_ + size_);
-        }
-
-        std::uint8_t*
-        allocate() noexcept
-        {
-            std::uint8_t* ret;
-
-            {
-                std::lock_guard l(m_);
-
-                ret = l_;
-
-                if (ret)
-                {
-                    // Use memcpy to avoid unaligned UB
-                    // (will optimize to equivalent code)
-                    std::memcpy(&l_, ret, sizeof(std::uint8_t*));
-                }
-            }
-
-            return ret;
-        }
-
-        /** Return an item to this allocator's freelist.
-
-            @param ptr The pointer to the chunk of memory being deallocated.
-
-            @note This is a dangerous, private interface; the item being
-                  returned should belong to this allocator. Debug builds
-                  will check and assert if this is not the case. Release
-                  builds will not.
-         */
-        void
-        deallocate(std::uint8_t* ptr) noexcept
-        {
-            XRPL_ASSERT(
-                own(ptr),
-                "ripple::SlabAllocator::SlabBlock::deallocate : own input");
-
-            std::lock_guard l(m_);
-
-            // Use memcpy to avoid unaligned UB
-            // (will optimize to equivalent code)
-            std::memcpy(ptr, &l_, sizeof(std::uint8_t*));
-            l_ = ptr;
         }
     };
 
-private:
-    // A linked list of slabs
-    std::atomic<SlabBlock*> slabs_ = nullptr;
+    // We need this to be trivially destructible so that we do not
+    // have to explicitly invoke the destructor when popping items
+    // from the free list or when deallocating the slab buffer.
+    static_assert(std::is_trivially_destructible_v<item_t>);
 
-    // The alignment requirements of the item we're allocating:
-    std::size_t const itemAlignment_;
+    item_t* head_ = nullptr;
+    slab_t* const next_ = nullptr;
+    std::atomic<std::uint8_t*> data_{nullptr};
+    std::atomic<std::uint8_t> lock_{0};
+    std::uint16_t cycles_ = 0;
+    std::uint32_t outstanding_ = 0;
 
-    // The size of an item, including the extra bytes requested and
-    // any padding needed for alignment purposes:
-    std::size_t const itemSize_;
+    /** Construct a block that is unlinked. */
+    constexpr slab_t() noexcept = default;
 
-    // The size of each individual slab:
-    std::size_t const slabSize_;
+    /** Construct a block with a link to the next block in the chain.
+
+        @param next Pointer to the next block, or nullptr for the tail.
+     */
+    constexpr explicit slab_t(slab_t* next) noexcept : next_(next)
+    {
+    }
+
+    ~slab_t() = default;
+
+    slab_t(slab_t const&) = delete;
+    slab_t&
+    operator=(slab_t const&) = delete;
+    slab_t(slab_t&&) = delete;
+    slab_t&
+    operator=(slab_t&&) = delete;
+
+    /** Attempt to acquire the block's spinlock.
+
+        @return true if lock was acquired, false if already held.
+     */
+    [[nodiscard]] bool
+    try_lock() noexcept
+    {
+        return spin_try_lock(lock_);
+    }
+
+    /** Acquire the block's spinlock, blocking until available. */
+    void
+    lock() noexcept
+    {
+        spin_lock(lock_);
+    }
+
+    /** Release the block's spinlock. */
+    void
+    unlock() noexcept
+    {
+        spin_unlock(lock_);
+    }
+
+    /** Attempt to assign a buffer to this block.
+
+        If the block has no buffer, takes ownership and initializes
+        the free list.
+
+        @param buffer Pointer to the buffer to assign.
+        @param slabSize Size of the buffer in bytes.
+        @param itemSize Size of each item in bytes.
+        @return Pointer to first item if assigned, nullptr if block already
+                has a buffer.
+     */
+    [[nodiscard]] std::uint8_t*
+    try_assign(
+        std::uint8_t* buffer,
+        std::size_t slabSize,
+        std::size_t itemSize) noexcept
+    {
+        std::uint8_t* expected = nullptr;
+
+        if (!data_.compare_exchange_strong(
+                expected, buffer, std::memory_order::acquire))
+            return nullptr;
+
+        spin_lock(lock_);
+
+        head_ = nullptr;
+        outstanding_ = 1;
+
+        auto p = buffer;
+
+        for (std::size_t n = (slabSize / itemSize) - 1; n--; p += itemSize)
+            head_ = std::construct_at(reinterpret_cast<item_t*>(p), head_);
+
+        spin_unlock(lock_);
+
+        return p;
+    }
+
+    /** Attempt to allocate from this block.
+
+        @return Pointer to allocated memory, or nullptr if block is empty.
+     */
+    [[nodiscard]] std::uint8_t*
+    try_allocate() noexcept
+    {
+        spin_lock(lock_);
+
+        auto ret = head_;
+
+        if (ret)
+        {
+            head_ = ret->next;
+            ++outstanding_;
+        }
+
+        spin_unlock(lock_);
+
+        return reinterpret_cast<std::uint8_t*>(ret);
+    }
+
+    /** Attempt to return a pointer to this block.
+
+        @param ptr Pointer to memory block.
+        @param slabSize Size of the slab's data buffer.
+        @param releaseBuffer Callback invoked with a pointer to the block's
+                             buffer so that it can be released.
+        @return true if ptr belonged to this block and was freed,
+                false otherwise.
+     */
+    template <typename ReleaseFunc>
+    [[nodiscard]] bool
+    try_deallocate(
+        std::uint8_t* ptr,
+        std::size_t slabSize,
+        ReleaseFunc&& releaseBuffer) noexcept
+    {
+        auto data = data_.load(std::memory_order::acquire);
+
+        if (!data || ptr < data || ptr >= data + slabSize)
+            return false;
+
+        std::uint8_t* buf = nullptr;
+
+        spin_lock(lock_);
+
+        assert(ptr != nullptr);
+        assert(outstanding_ > 0);
+
+        head_ = std::construct_at(reinterpret_cast<item_t*>(ptr), head_);
+
+        // If this block became empty and it is not the first block, we
+        // release its buffer. The first block (at the tail of the list
+        // with next_ == nullptr) is exempt to keep one block ready.
+        if (--outstanding_ == 0 && next_ != nullptr)
+        {
+            head_ = nullptr;
+            buf = data_.exchange(buf, std::memory_order::relaxed);
+            cycles_ += (cycles_ < std::numeric_limits<std::uint16_t>::max());
+        }
+
+        spin_unlock(lock_);
+
+        if (buf != nullptr)
+            releaseBuffer(buf);
+
+        return true;
+    }
+};
+
+//------------------------------------------------------------------------------
+
+/** Global pool of slab_t objects shared by all slab allocators.
+
+    Provides a fixed-size array of pre-allocated slabs with fallback
+    to heap allocation if exhausted.
+ */
+class slab_pool_t
+{
+    std::array<slab_t, 32768> blocks_{};
+    std::atomic<std::size_t> count_{0};
 
 public:
-    /** Constructs a slab allocator able to allocate objects of a fixed size
+    constexpr slab_pool_t() = default;
 
-        @param count the number of items the slab allocator can allocate; note
-                     that a count of 0 is valid and means that the allocator
-                     is, effectively, disabled. This can be very useful in some
-                     contexts (e.g. when mimimal memory usage is needed) and
-                     allows for graceful failure.
+    slab_pool_t(slab_pool_t const&) = delete;
+    slab_pool_t&
+    operator=(slab_pool_t const&) = delete;
+    slab_pool_t(slab_pool_t&&) = delete;
+    slab_pool_t&
+    operator=(slab_pool_t&&) = delete;
+
+    /** Acquire a slab from the pool.
+
+        @param next Pointer to link as the slab's next pointer.
+        @return Pointer to acquired block, or nullptr if allocation failed.
      */
-    constexpr explicit SlabAllocator(
+    [[nodiscard]] slab_t*
+    acquire(slab_t* next) noexcept
+    {
+        auto idx = count_.load(std::memory_order::relaxed);
+
+        while (idx < blocks_.size())
+        {
+            if (count_.compare_exchange_weak(
+                    idx, idx + 1, std::memory_order::relaxed))
+            {
+                return std::construct_at(&blocks_[idx], next);
+            }
+        }
+
+        // Pool exhausted (unlikely!) so fall back to heap
+        return new (std::nothrow) slab_t(next);
+    }
+};
+
+/// Single global block pool for all slab allocators.
+inline constinit slab_pool_t globalSlabPool;
+
+}  // namespace detail
+
+//------------------------------------------------------------------------------
+
+/** A slab allocator for fixed-size memory blocks.
+
+    Allocates memory in large slabs (multiples of 2MB) and sub-allocates
+    fixed-size blocks from them. Provides fast allocation with minimal
+    fragmentation for objects of uniform size.
+
+    @tparam Type The type used to determine minimum block size and alignment.
+    @tparam Align Alignment for allocated blocks (must be >= alignof(Type)).
+ */
+template <typename Type, std::size_t Align = alignof(Type)>
+    requires(
+        sizeof(Type) >= sizeof(void*) && Align >= alignof(Type) &&
+        std::has_single_bit(Align))
+class sized_allocator_t
+{
+    /// Linked list of slabs for this allocator.
+    std::atomic<detail::slab_t*> slabs_{nullptr};
+
+    /// Cached buffer to avoid thrashing when oscillating around block
+    /// boundaries.
+    std::atomic<std::uint8_t*> cachedBuffer_{nullptr};
+
+    /// Spinlock to serialize the slow allocation path.
+    std::atomic<std::uint8_t> blockLock_{0};
+
+    /// Item size (sizeof(Type) + extra, rounded up for alignment).
+    std::size_t itemSize_;
+
+    /// Size of each slab's data buffer (multiple of 2 MB).
+    std::size_t slabSize_;
+
+    /** Allocate a memory block from the existing slabs.
+
+        Fast path allocation that doesn't acquire the global lock.
+
+        @return Pointer to allocated memory, or nullptr if all slabs are full.
+     */
+    [[nodiscard]] std::uint8_t*
+    fast_allocate() noexcept
+    {
+        for (auto slab = slabs_.load(std::memory_order::acquire); slab;
+             slab = slab->next_)
+        {
+            if (auto ret = slab->try_allocate())
+                return ret;
+        }
+
+        return nullptr;
+    }
+
+    /** Allocate a memory block, potentially creating new capacity.
+
+        Slow path allocation that may allocate a new buffer or slab.
+        Must be called with blockLock_ held.
+
+        @return Pointer to allocated memory, or nullptr on failure.
+     */
+    [[nodiscard]] std::uint8_t*
+    slow_allocate() noexcept
+    {
+        if (auto ret = fast_allocate())
+            return ret;
+
+        // Use a cached buffer first, if we have one, or allocate memory
+        // from the operating system.
+        auto buf = cachedBuffer_.exchange(nullptr, std::memory_order::acquire);
+
+        if (!buf)
+            buf = detail::allocateBuffer(slabSize_);
+
+        if (!buf) [[unlikely]]
+            return nullptr;
+
+        // Try to give buffer to an existing empty slab
+        for (auto slab = slabs_.load(std::memory_order::acquire); slab;
+             slab = slab->next_)
+        {
+            if (auto ret = slab->try_assign(buf, slabSize_, itemSize_))
+                return ret;
+        }
+
+        // Create new slab from global pool
+        auto* slab = detail::globalSlabPool.acquire(
+            slabs_.load(std::memory_order::relaxed));
+
+        if (!slab) [[unlikely]]
+        {
+            detail::deallocateBuffer(buf);
+            return nullptr;
+        }
+
+        auto ret = slab->try_assign(buf, slabSize_, itemSize_);
+        assert(ret);
+
+        // Link the new slab. Since we hold the lock, we can just do a
+        // direct assignment here.
+        slabs_.store(slab, std::memory_order::release);
+
+        return ret;
+    }
+
+public:
+    /** Construct a slab allocator.
+
+        @param extra Extra bytes per item beyond sizeof(Type).
+        @param minItems Minimum number of items per slab (rounded up to 2MB).
+     */
+    constexpr explicit sized_allocator_t(
         std::size_t extra,
-        std::size_t alloc = 0,
-        std::size_t align = 0)
-        : itemAlignment_(align ? align : alignof(Type))
-        , itemSize_(
-              boost::alignment::align_up(sizeof(Type) + extra, itemAlignment_))
-        , slabSize_(alloc)
+        std::size_t minItems)
+        : itemSize_(boost::alignment::align_up(sizeof(Type) + extra, Align))
+        , slabSize_(
+              boost::alignment::align_up(
+                  itemSize_ * minItems,
+                  detail::pageSize))
     {
-        XRPL_ASSERT(
-            (itemAlignment_ & (itemAlignment_ - 1)) == 0,
-            "ripple::SlabAllocator::SlabAllocator : valid alignment");
     }
 
-    SlabAllocator(SlabAllocator const& other) = delete;
-    SlabAllocator&
-    operator=(SlabAllocator const& other) = delete;
+    // Data buffers are intentionally not released. C++ destruction order
+    // does not guarantee that all items allocated from this allocator
+    // have been freed by the time this destructor runs.
+    ~sized_allocator_t() = default;
 
-    SlabAllocator(SlabAllocator&& other) = delete;
-    SlabAllocator&
-    operator=(SlabAllocator&& other) = delete;
+    sized_allocator_t(sized_allocator_t const&) = delete;
+    sized_allocator_t&
+    operator=(sized_allocator_t const&) = delete;
+    sized_allocator_t(sized_allocator_t&&) = delete;
+    sized_allocator_t&
+    operator=(sized_allocator_t&&) = delete;
 
-    ~SlabAllocator()
-    {
-        // FIXME: We can't destroy the memory blocks we've allocated, because
-        //        we can't be sure that they are not being used. Cleaning the
-        //        shutdown process up could make this possible.
-    }
+    /** Returns the size of memory blocks returned by this allocator.
 
-    /** Returns the size of the memory block this allocator returns. */
-    constexpr std::size_t
+        @return Size of each allocated block in bytes.
+     */
+    [[nodiscard]] constexpr std::size_t
     size() const noexcept
     {
         return itemSize_;
     }
 
-    /** Returns a suitably aligned pointer, if one is available.
+    /** Allocate a memory block.
 
-        @return a pointer to a block of memory from the allocator, or
-                nullptr if the allocator can't satisfy this request.
+        @return Pointer to allocated memory, or nullptr on failure.
+
+        @note The gnu::malloc attribute is an optimization hint that can
+              be leveraged by GCC and Clang.
      */
-    std::uint8_t*
+    [[nodiscard, gnu::malloc]] std::uint8_t*
     allocate() noexcept
     {
-        auto slab = slabs_.load();
+        // Fast path: try existing slabs
+        auto ret = fast_allocate();
 
-        while (slab != nullptr)
+        if (ret == nullptr)
         {
-            if (auto ret = slab->allocate())
-                return ret;
-
-            slab = slab->next_;
+            // Slow path: need new capacity. Grab the lock to serialize access
+            // to this code path because it is expensive. Then re-check in case
+            // another thread added capacity while we waited.
+            spin_lock(blockLock_);
+            ret = slow_allocate();
+            spin_unlock(blockLock_);
         }
 
-        // No slab can satisfy our request, so we attempt to allocate a new
-        // one here:
-        std::size_t size = slabSize_;
-
-        // We want to allocate the memory at a 2 MiB boundary, to make it
-        // possible to use hugepage mappings on Linux:
-        auto buf =
-            boost::alignment::aligned_alloc(megabytes(std::size_t(2)), size);
-
-        // clang-format off
-        if (!buf) [[unlikely]]
-            return nullptr;
-            // clang-format on
-
-#if BOOST_OS_LINUX
-        // When allocating large blocks, attempt to leverage Linux's
-        // transparent hugepage support. It is unclear and difficult
-        // to accurately determine if doing this impacts performance
-        // enough to justify using platform-specific tricks.
-        if (size >= megabytes(std::size_t(4)))
-            madvise(buf, size, MADV_HUGEPAGE);
-#endif
-
-        // We need to carve out a bit of memory for the slab header
-        // and then align the rest appropriately:
-        auto slabData = reinterpret_cast<void*>(
-            reinterpret_cast<std::uint8_t*>(buf) + sizeof(SlabBlock));
-        auto slabSize = size - sizeof(SlabBlock);
-
-        // This operation is essentially guaranteed not to fail but
-        // let's be careful anyways.
-        if (!boost::alignment::align(
-                itemAlignment_, itemSize_, slabData, slabSize))
-        {
-            boost::alignment::aligned_free(buf);
-            return nullptr;
-        }
-
-        slab = new (buf) SlabBlock(
-            slabs_.load(),
-            reinterpret_cast<std::uint8_t*>(slabData),
-            slabSize,
-            itemSize_);
-
-        // Link the new slab
-        while (!slabs_.compare_exchange_weak(
-            slab->next_,
-            slab,
-            std::memory_order_release,
-            std::memory_order_relaxed))
-        {
-            ;  // Nothing to do
-        }
-
-        return slab->allocate();
+        return ret;
     }
 
-    /** Returns the memory block to the allocator.
+    /** Return a memory block to the allocator.
 
-        @param ptr A pointer to a memory block.
-        @param size If non-zero, a hint as to the size of the block.
-        @return true if this memory block belonged to the allocator and has
-                     been released; false otherwise.
+        @param ptr Pointer to memory block.
+        @return true if the block belonged to this allocator and was freed.
      */
-    bool
+    [[nodiscard]] bool
     deallocate(std::uint8_t* ptr) noexcept
     {
         XRPL_ASSERT(
@@ -305,125 +503,146 @@ public:
             "ripple::SlabAllocator::SlabAllocator::deallocate : non-null "
             "input");
 
-        for (auto slab = slabs_.load(); slab != nullptr; slab = slab->next_)
+        auto release = [this](std::uint8_t* buf) {
+            std::uint8_t* expected = nullptr;
+
+            if (buf != nullptr &&
+                !cachedBuffer_.compare_exchange_strong(
+                    expected, buf, std::memory_order::release))
+                detail::deallocateBuffer(buf);
+        };
+
+        for (auto slab = slabs_.load(std::memory_order::acquire); slab;
+             slab = slab->next_)
         {
-            if (slab->own(ptr))
-            {
-                slab->deallocate(ptr);
+            if (slab->try_deallocate(ptr, slabSize_, release))
                 return true;
-            }
         }
 
         return false;
     }
 };
 
-/** A collection of slab allocators of various sizes for a given type. */
-template <typename Type>
-class SlabAllocatorSet
+//------------------------------------------------------------------------------
+
+/** Configuration for a single slab allocator.
+
+    @tparam MinItems Minimum number of items per slab (must be > 0).
+    @tparam Extra Extra bytes per item beyond sizeof(Type).
+ */
+template <std::size_t MinItems, std::size_t Extra = 0>
+    requires(MinItems > 0)
+struct config
 {
-private:
-    // The list of allocators that belong to this set
-    boost::container::static_vector<SlabAllocator<Type>, 64> allocators_;
+    static constexpr std::size_t minItems = MinItems;
+    static constexpr std::size_t extra = Extra;
+};
 
-    std::size_t maxSize_ = 0;
+/** Concept for valid slab configuration types. */
+template <typename T>
+concept SlabConfig = requires {
+    { T::minItems } -> std::convertible_to<std::size_t>;
+    { T::extra } -> std::convertible_to<std::size_t>;
+    requires T::minItems > 0;
+};
 
-public:
-    class SlabConfig
-    {
-        friend class SlabAllocatorSet;
+/** Validate slab configurations at compile time.
 
-    private:
-        std::size_t extra;
-        std::size_t alloc;
-        std::size_t align;
+    Checks that configurations produce strictly increasing sizes after
+    alignment. This catches both unsorted configs and configs that
+    collapse to the same size after alignment.
 
-    public:
-        constexpr SlabConfig(
-            std::size_t extra_,
-            std::size_t alloc_ = 0,
-            std::size_t align_ = alignof(Type))
-            : extra(extra_), alloc(alloc_), align(align_)
-        {
-        }
+    @tparam Type The type used to determine base size.
+    @tparam Align Alignment for allocated blocks.
+    @tparam Configs Configuration types to validate.
+    @return true if configurations are valid, false otherwise.
+ */
+template <typename Type, std::size_t Align, SlabConfig... Configs>
+consteval bool
+validate_slab_config()
+{
+    constexpr auto align_up = [](std::size_t n, std::size_t a) {
+        return (n + a - 1) & ~(a - 1);
     };
 
-    constexpr SlabAllocatorSet(std::vector<SlabConfig> cfg)
-    {
-        // Ensure that the specified allocators are sorted from smallest to
-        // largest by size:
-        std::sort(
-            std::begin(cfg),
-            std::end(cfg),
-            [](SlabConfig const& a, SlabConfig const& b) {
-                return a.extra < b.extra;
-            });
+    constexpr std::array<std::size_t, sizeof...(Configs)> sizes{
+        align_up(sizeof(Type) + Configs::extra, Align)...};
 
-        // We should never have two slabs of the same size
-        if (std::adjacent_find(
-                std::begin(cfg),
-                std::end(cfg),
-                [](SlabConfig const& a, SlabConfig const& b) {
-                    return a.extra == b.extra;
-                }) != cfg.end())
-        {
-            throw std::runtime_error(
-                "SlabAllocatorSet<" + beast::type_name<Type>() +
-                ">: duplicate slab size");
-        }
+    for (std::size_t i = 1; i < sizes.size(); ++i)
+        if (sizes[i - 1] >= sizes[i])
+            return false;
 
-        for (auto const& c : cfg)
-        {
-            auto& a = allocators_.emplace_back(c.extra, c.alloc, c.align);
+    return true;
+}
 
-            if (a.size() > maxSize_)
-                maxSize_ = a.size();
-        }
-    }
+//------------------------------------------------------------------------------
 
-    SlabAllocatorSet(SlabAllocatorSet const& other) = delete;
-    SlabAllocatorSet&
-    operator=(SlabAllocatorSet const& other) = delete;
+/** A collection of slab allocators for different sizes.
 
-    SlabAllocatorSet(SlabAllocatorSet&& other) = delete;
-    SlabAllocatorSet&
-    operator=(SlabAllocatorSet&& other) = delete;
+    Manages multiple sized_allocator_t instances, each configured for a
+    different block size. Allocations are routed to the smallest allocator
+    that can satisfy the request.
 
-    ~SlabAllocatorSet()
+    @tparam Type The type used to determine minimum block size and alignment.
+    @tparam Align Alignment for allocated blocks (must be >= alignof(Type)).
+    @tparam Configs Configuration types specifying each size class.
+ */
+template <typename Type, std::size_t Align, SlabConfig... Configs>
+    requires(
+        sizeof(Type) >= sizeof(void*) && Align >= alignof(Type) &&
+        std::has_single_bit(Align) && sizeof...(Configs) > 0 &&
+        validate_slab_config<Type, Align, Configs...>())
+class aligned_allocator_t
+{
+    std::array<sized_allocator_t<Type, Align>, sizeof...(Configs)> allocators_;
+
+public:
+    /** Construct an allocator set. */
+    constexpr aligned_allocator_t()
+        : allocators_{sized_allocator_t<Type, Align>(
+              Configs::extra,
+              Configs::minItems)...}
     {
     }
 
-    /** Returns a suitably aligned pointer, if one is available.
+    ~aligned_allocator_t() = default;
 
-        @param extra The number of extra bytes, above and beyond the size of
-                     the object, that should be returned by the allocator.
+    aligned_allocator_t(aligned_allocator_t const&) = delete;
+    aligned_allocator_t&
+    operator=(aligned_allocator_t const&) = delete;
+    aligned_allocator_t(aligned_allocator_t&&) = delete;
+    aligned_allocator_t&
+    operator=(aligned_allocator_t&&) = delete;
 
-        @return a pointer to a block of memory, or nullptr if the allocator
-                can't satisfy this request.
+    /** Allocate memory for an object with extra bytes.
+
+        @param extra Extra bytes needed beyond sizeof(Type).
+        @return Pointer to memory, or nullptr if no suitable allocator
+                or allocation failed.
+
+        @note The gnu::malloc attribute is an optimization hint that can
+              be leveraged by GCC and Clang.
      */
-    std::uint8_t*
+    [[nodiscard, gnu::malloc]] std::uint8_t*
     allocate(std::size_t extra) noexcept
     {
-        if (auto const size = sizeof(Type) + extra; size <= maxSize_)
+        auto const size = sizeof(Type) + extra;
+
+        for (auto& a : allocators_)
         {
-            for (auto& a : allocators_)
-            {
-                if (a.size() >= size)
-                    return a.allocate();
-            }
+            if (a.size() >= size)
+                return a.allocate();
         }
 
         return nullptr;
     }
 
-    /** Returns the memory block to the allocator.
+    /** Return memory to the allocator set.
 
-        @param ptr A pointer to a memory block.
-
-        @return true if this memory block belonged to one of the allocators
-                     in this set and has been released; false otherwise.
+        @param ptr Pointer to memory block.
+        @return true if memory belonged to this set and was freed.
      */
-    bool
+    [[nodiscard]] bool
     deallocate(std::uint8_t* ptr) noexcept
     {
         for (auto& a : allocators_)
@@ -431,11 +650,16 @@ public:
             if (a.deallocate(ptr))
                 return true;
         }
-
         return false;
     }
 };
 
+/** Alias for aligned_allocator_t with default alignment. */
+template <typename Type, SlabConfig... Configs>
+using allocator_t = aligned_allocator_t<Type, alignof(Type), Configs...>;
+
+}  // namespace slab
+
 }  // namespace ripple
 
 #endif  // RIPPLE_BASICS_SLABALLOCATOR_H_INCLUDED

include/xrpl/basics/Slice.h

@@ -28,6 +28,7 @@
 #include <cstdint>
 #include <cstring>
 #include <limits>
+#include <span>
 #include <stdexcept>
 #include <string>
 #include <type_traits>
@@ -200,34 +201,26 @@ hash_append(Hasher& h, Slice const& v)
     h(v.data(), v.size());
 }
 
+inline std::strong_ordering
+operator<=>(Slice const& lhs, Slice const& rhs) noexcept
+{
+    return std::lexicographical_compare_three_way(
+        lhs.data(),
+        lhs.data() + lhs.size(),
+        rhs.data(),
+        rhs.data() + rhs.size());
+    ;
+}
+
 inline bool
 operator==(Slice const& lhs, Slice const& rhs) noexcept
 {
-    if (lhs.size() != rhs.size())
-        return false;
-
-    if (lhs.size() == 0)
-        return true;
-
-    return std::memcmp(lhs.data(), rhs.data(), lhs.size()) == 0;
-}
-
-inline bool
-operator!=(Slice const& lhs, Slice const& rhs) noexcept
-{
-    return !(lhs == rhs);
-}
-
-inline bool
-operator<(Slice const& lhs, Slice const& rhs) noexcept
-{
-    return std::lexicographical_compare(
+    return std::equal(
         lhs.data(),
         lhs.data() + lhs.size(),
         rhs.data(),
         rhs.data() + rhs.size());
 }
-
 template <class Stream>
 Stream&
 operator<<(Stream& s, Slice const& v)
@@ -245,6 +238,15 @@ makeSlice(std::array<T, N> const& a)
     return Slice(a.data(), a.size());
 }
 
+template <class T, std::size_t N>
+std::enable_if_t<
+    std::is_same<T, char>::value || std::is_same<T, unsigned char>::value,
+    Slice>
+makeSlice(std::span<T, N> const& a)
+{
+    return Slice(a.data(), a.size());
+}
+
 template <class T, class Alloc>
 std::enable_if_t<
     std::is_same<T, char>::value || std::is_same<T, unsigned char>::value,

include/xrpl/basics/contract.h

@@ -22,54 +22,54 @@
 
 #include <xrpl/beast/type_name.h>
 #include <exception>
-#include <string>
-#include <typeinfo>
+#include <string_view>
+#include <type_traits>
 #include <utility>
 
 namespace ripple {
 
-/*  Programming By Contract
+namespace detail {
 
-    This routines are used when checking
-    preconditions, postconditions, and invariants.
-*/
-
-/** Generates and logs a call stack */
+/** Throws an exception, logging its type and message before doing so. */
 void
-LogThrow(std::string const& title);
+LogThrow(std::string_view type, std::string_view what);
 
-/** Rethrow the exception currently being handled.
+}  // namespace detail
+/** Throws an exception, logging its type and message before doing so.
 
-    When called from within a catch block, it will pass
-    control to the next matching exception handler, if any.
-    Otherwise, std::terminate will be called.
-*/
-[[noreturn]] inline void
-Rethrow()
-{
-    LogThrow("Re-throwing exception");
-    throw;
-}
+    @tparam E    The exception type. Must derive from std::exception.
+    @tparam Args Constructor argument types for E.
 
+    @param args  Arguments forwarded to the constructor of E.
+ */
 template <class E, class... Args>
-[[noreturn]] inline void
+[[noreturn]] constexpr void
 Throw(Args&&... args)
 {
     static_assert(
-        std::is_convertible<E*, std::exception*>::value,
+        std::derived_from<E, std::exception>,
         "Exception must derive from std::exception.");
 
-    E e(std::forward<Args>(args)...);
-    LogThrow(
-        std::string(
-            "Throwing exception of type " + beast::type_name<E>() + ": ") +
-        e.what());
+    E e{std::forward<Args>(args)...};
+
+    // This will avoid the logging call when we the call is being evaluated at
+    // compile time and logging would not be possible or helpful. This enables
+    // `Throw` to be called at from constexpr/consteval functions.
+    if (!std::is_constant_evaluated())
+        detail::LogThrow(beast::type_name<E>().c_str(), e.what());
+
     throw e;
 }
 
-/** Called when faulty logic causes a broken invariant. */
+/** Logs a fatal message and terminates the process unconditionally.
+
+    This should be called when code detects a broken invariant
+    or a condition from which recovery is not possible.
+
+    @param msg A description of the error.
+ */
 [[noreturn]] void
-LogicError(std::string const& how) noexcept;
+LogicError(std::string_view msg) noexcept;
 
 }  // namespace ripple
 

include/xrpl/basics/spinlock.h

@@ -20,6 +20,7 @@
 
 #include <xrpl/beast/utility/instrumentation.h>
 #include <atomic>
+#include <concepts>
 #include <limits>
 #include <type_traits>
 
@@ -30,6 +31,7 @@
 namespace ripple {
 
 namespace detail {
+
 /** Inform the processor that we are in a tight spin-wait loop.
 
     Spinlocks caught in tight loops can result in the processor's pipeline
@@ -52,11 +54,132 @@ spin_pause() noexcept
 
 }  // namespace detail
 
-/** @{ */
-/** Classes to handle arrays of spinlocks packed into a single atomic integer:
+//------------------------------------------------------------------------------
 
-    Packed spinlocks allow for tremendously space-efficient lock-sharding
-    but they come at a cost.
+/** Attempt to acquire a spinlock without blocking.
+
+    @tparam T An unsigned integral type.
+    @param lock The atomic variable used as the lock.
+    @return true if the lock was acquired, false if it was already held.
+ */
+template <typename T>
+    requires(std::is_unsigned_v<T> && std::atomic<T>::is_always_lock_free)
+[[nodiscard]] bool
+spin_try_lock(std::atomic<T>& lock) noexcept
+{
+    T expected = 0;
+
+    return lock.compare_exchange_strong(
+        expected,
+        std::numeric_limits<T>::max(),
+        std::memory_order::acquire,
+        std::memory_order::relaxed);
+}
+
+/** Acquire a spinlock, blocking until available.
+
+    Uses a TTAS (test-and-test-and-set) pattern to reduce cache coherency
+    traffic during contention.
+
+    @tparam T An unsigned integral type.
+    @param lock The atomic variable used as the lock.
+ */
+template <typename T>
+    requires(std::is_unsigned_v<T> && std::atomic<T>::is_always_lock_free)
+void
+spin_lock(std::atomic<T>& lock) noexcept
+{
+    T expected = 0;
+
+    while (!lock.compare_exchange_weak(
+        expected,
+        std::numeric_limits<T>::max(),
+        std::memory_order::acquire,
+        std::memory_order::relaxed))
+    {
+        expected = 0;
+
+        while (lock.load(std::memory_order::relaxed) != 0)
+            detail::spin_pause();
+    }
+}
+
+/** Release a spinlock.
+
+    @tparam T An unsigned integral type.
+    @param lock The atomic variable used as the lock.
+ */
+template <typename T>
+    requires(std::is_unsigned_v<T> && std::atomic<T>::is_always_lock_free)
+void
+spin_unlock(std::atomic<T>& lock) noexcept
+{
+    lock.store(0, std::memory_order::release);
+}
+
+//------------------------------------------------------------------------------
+
+/** A Lockable interface to a spinlock implemented on top of an atomic.
+
+    @tparam T An unsigned integral type.
+
+    @note Using `packed_spinlock` and `spinlock` against the same underlying
+          atomic integer can result in `spinlock` not being able to actually
+          acquire the lock during periods of high contention, because of how
+          the two locks operate: `spinlock` will spin trying to grab all the
+          bits at once, whereas any given `packed_spinlock` will only try to
+          grab one bit at a time. Caveat emptor.
+
+    This class meets the requirements of Lockable:
+        https://en.cppreference.com/w/cpp/named_req/Lockable
+ */
+template <typename T>
+    requires(std::is_unsigned_v<T> && std::atomic<T>::is_always_lock_free)
+class spinlock
+{
+    std::atomic<T>& lock_;
+
+public:
+    spinlock(spinlock const&) = delete;
+    spinlock&
+    operator=(spinlock const&) = delete;
+
+    /** Construct a spinlock handle.
+
+        @param lock The atomic integer to spin against.
+
+        @note For performance reasons, you should strive to have `lock` be
+              on a cacheline by itself.
+     */
+    explicit spinlock(std::atomic<T>& lock) noexcept : lock_(lock)
+    {
+    }
+
+    [[nodiscard]] bool
+    try_lock() noexcept
+    {
+        return spin_try_lock(lock_);
+    }
+
+    void
+    lock() noexcept
+    {
+        spin_lock(lock_);
+    }
+
+    void
+    unlock() noexcept
+    {
+        spin_unlock(lock_);
+    }
+};
+
+//------------------------------------------------------------------------------
+
+/** A Lockable interface to a packed spinlock implemented on top of an atomic.
+
+    Packed spinlocks offer tremendous space-efficient lock-sharding but
+    they come at a cost.
 
     First, the implementation is necessarily low-level and uses advanced
     features like memory ordering and highly platform-specific tricks to
@@ -78,26 +201,19 @@ spin_pause() noexcept
     that it can, usually, outperform spinlocks.
 
     @tparam T An unsigned integral type (e.g. std::uint16_t)
- */
-
-/** A class that grabs a single packed spinlock from an atomic integer.
 
     This class meets the requirements of Lockable:
         https://en.cppreference.com/w/cpp/named_req/Lockable
  */
-template <class T>
+template <typename T>
+    requires(
+        std::is_unsigned_v<T> && std::atomic<T>::is_always_lock_free &&
+        requires(std::atomic<T>& a, T v) {
+            { a.fetch_or(v) } -> std::same_as<T>;
+            { a.fetch_and(v) } -> std::same_as<T>;
+        })
 class packed_spinlock
 {
-    // clang-format off
-    static_assert(std::is_unsigned_v<T>);
-    static_assert(std::atomic<T>::is_always_lock_free);
-    static_assert(
-        std::is_same_v<decltype(std::declval<std::atomic<T>&>().fetch_or(0)), T> &&
-        std::is_same_v<decltype(std::declval<std::atomic<T>&>().fetch_and(0)), T>,
-        "std::atomic<T>::fetch_and(T) and std::atomic<T>::fetch_and(T) are required by packed_spinlock");
-    // clang-format on
-
-private:
     std::atomic<T>& bits_;
     T const mask_;
 
@@ -106,7 +222,7 @@ public:
     packed_spinlock&
     operator=(packed_spinlock const&) = delete;
 
-    /** A single spinlock packed inside the specified atomic
+    /** Construct a packed spinlock handle for a single bit.
 
         @param lock The atomic integer inside which the spinlock is packed.
         @param index The index of the spinlock this object acquires.
@@ -114,7 +230,7 @@ public:
         @note For performance reasons, you should strive to have `lock` be
               on a cacheline by itself.
      */
-    packed_spinlock(std::atomic<T>& lock, int index)
+    packed_spinlock(std::atomic<T>& lock, int index) noexcept
         : bits_(lock), mask_(static_cast<T>(1) << index)
     {
         XRPL_ASSERT(
@@ -123,13 +239,13 @@ public:
     }
 
     [[nodiscard]] bool
-    try_lock()
+    try_lock() noexcept
     {
-        return (bits_.fetch_or(mask_, std::memory_order_acquire) & mask_) == 0;
+        return (bits_.fetch_or(mask_, std::memory_order::acquire) & mask_) == 0;
     }
 
     void
-    lock()
+    lock() noexcept
     {
         while (!try_lock())
         {
@@ -137,89 +253,18 @@ public:
             // serves to help reduce cache coherency traffic during times
             // of contention by avoiding writes that would definitely not
             // result in the lock being acquired.
-            while ((bits_.load(std::memory_order_relaxed) & mask_) != 0)
+            while ((bits_.load(std::memory_order::relaxed) & mask_) != 0)
                 detail::spin_pause();
         }
     }
 
     void
-    unlock()
+    unlock() noexcept
     {
-        bits_.fetch_and(~mask_, std::memory_order_release);
+        bits_.fetch_and(~mask_, std::memory_order::release);
     }
 };
 
-/** A spinlock implemented on top of an atomic integer.
-
-    @note Using `packed_spinlock` and `spinlock` against the same underlying
-          atomic integer can result in `spinlock` not being able to actually
-          acquire the lock during periods of high contention, because of how
-          the two locks operate: `spinlock` will spin trying to grab all the
-          bits at once, whereas any given `packed_spinlock` will only try to
-          grab one bit at a time. Caveat emptor.
-
-    This class meets the requirements of Lockable:
-        https://en.cppreference.com/w/cpp/named_req/Lockable
- */
-template <class T>
-class spinlock
-{
-    static_assert(std::is_unsigned_v<T>);
-    static_assert(std::atomic<T>::is_always_lock_free);
-
-private:
-    std::atomic<T>& lock_;
-
-public:
-    spinlock(spinlock const&) = delete;
-    spinlock&
-    operator=(spinlock const&) = delete;
-
-    /** Grabs the
-
-        @param lock The atomic integer to spin against.
-
-        @note For performance reasons, you should strive to have `lock` be
-              on a cacheline by itself.
-     */
-    spinlock(std::atomic<T>& lock) : lock_(lock)
-    {
-    }
-
-    [[nodiscard]] bool
-    try_lock()
-    {
-        T expected = 0;
-
-        return lock_.compare_exchange_weak(
-            expected,
-            std::numeric_limits<T>::max(),
-            std::memory_order_acquire,
-            std::memory_order_relaxed);
-    }
-
-    void
-    lock()
-    {
-        while (!try_lock())
-        {
-            // The use of relaxed memory ordering here is intentional and
-            // serves to help reduce cache coherency traffic during times
-            // of contention by avoiding writes that would definitely not
-            // result in the lock being acquired.
-            while (lock_.load(std::memory_order_relaxed) != 0)
-                detail::spin_pause();
-        }
-    }
-
-    void
-    unlock()
-    {
-        lock_.store(0, std::memory_order_release);
-    }
-};
-/** @} */
-
 }  // namespace ripple
 
 #endif

include/xrpl/beast/core/LexicalCast.h

@@ -20,187 +20,161 @@
 #ifndef BEAST_MODULE_CORE_TEXT_LEXICALCAST_H_INCLUDED
 #define BEAST_MODULE_CORE_TEXT_LEXICALCAST_H_INCLUDED
 
-#include <xrpl/beast/utility/instrumentation.h>
+#include <xrpl/beast/type_name.h>
 
+#include <boost/beast/core/string_type.hpp>
 #include <boost/core/detail/string_view.hpp>
+#include <boost/utility/string_view.hpp>
+
 #include <algorithm>
-#include <cerrno>
+#include <array>
 #include <charconv>
-#include <cstdlib>
 #include <iterator>
 #include <limits>
 #include <string>
+#include <string_view>
 #include <type_traits>
 #include <typeinfo>
-#include <utility>
 
 namespace beast {
 
-namespace detail {
-
-// These specializatons get called by the non-member functions to do the work
-template <class Out, class In>
-struct LexicalCast;
-
-// conversion to std::string
-template <class In>
-struct LexicalCast<std::string, In>
-{
-    explicit LexicalCast() = default;
-
-    template <class Arithmetic = In>
-    std::enable_if_t<std::is_arithmetic_v<Arithmetic>, bool>
-    operator()(std::string& out, Arithmetic in)
-    {
-        out = std::to_string(in);
-        return true;
-    }
-
-    template <class Enumeration = In>
-    std::enable_if_t<std::is_enum_v<Enumeration>, bool>
-    operator()(std::string& out, Enumeration in)
-    {
-        out = std::to_string(
-            static_cast<std::underlying_type_t<Enumeration>>(in));
-        return true;
-    }
-};
-
-// Parse a std::string_view into a number
-template <typename Out>
-struct LexicalCast<Out, std::string_view>
-{
-    explicit LexicalCast() = default;
-
-    static_assert(
-        std::is_integral_v<Out>,
-        "beast::LexicalCast can only be used with integral types");
-
-    template <class Integral = Out>
-    std::enable_if_t<
-        std::is_integral_v<Integral> && !std::is_same_v<Integral, bool>,
-        bool>
-    operator()(Integral& out, std::string_view in) const
-    {
-        auto first = in.data();
-        auto last = in.data() + in.size();
-
-        if (first != last && *first == '+')
-            ++first;
-
-        auto ret = std::from_chars(first, last, out);
-
-        return ret.ec == std::errc() && ret.ptr == last;
-    }
-
-    bool
-    operator()(bool& out, std::string_view in) const
-    {
-        std::string result;
-
-        // Convert the input to lowercase
-        std::transform(
-            in.begin(), in.end(), std::back_inserter(result), [](auto c) {
-                return std::tolower(static_cast<unsigned char>(c));
-            });
-
-        if (result == "1" || result == "true")
-        {
-            out = true;
-            return true;
-        }
-
-        if (result == "0" || result == "false")
-        {
-            out = false;
-            return true;
-        }
-
-        return false;
-    }
-};
-//------------------------------------------------------------------------------
-
-// Parse boost library's string_view to number or boolean value
-// Note: As of Jan 2024, Boost contains three different types of string_view
-// (boost::core::basic_string_view<char>, boost::string_ref and
-// boost::string_view). The below template specialization is included because
-// it is used in the handshake.cpp file
-template <class Out>
-struct LexicalCast<Out, boost::core::basic_string_view<char>>
-{
-    explicit LexicalCast() = default;
-
-    bool
-    operator()(Out& out, boost::core::basic_string_view<char> in) const
-    {
-        return LexicalCast<Out, std::string_view>()(out, in);
-    }
-};
-
-// Parse std::string to number or boolean value
-template <class Out>
-struct LexicalCast<Out, std::string>
-{
-    explicit LexicalCast() = default;
-
-    bool
-    operator()(Out& out, std::string in) const
-    {
-        return LexicalCast<Out, std::string_view>()(out, in);
-    }
-};
-
-// Conversion from null terminated char const*
-template <class Out>
-struct LexicalCast<Out, char const*>
-{
-    explicit LexicalCast() = default;
-
-    bool
-    operator()(Out& out, char const* in) const
-    {
-        XRPL_ASSERT(
-            in, "beast::detail::LexicalCast(char const*) : non-null input");
-        return LexicalCast<Out, std::string_view>()(out, in);
-    }
-};
-
-// Conversion from null terminated char*
-// The string is not modified.
-template <class Out>
-struct LexicalCast<Out, char*>
-{
-    explicit LexicalCast() = default;
-
-    bool
-    operator()(Out& out, char* in) const
-    {
-        XRPL_ASSERT(in, "beast::detail::LexicalCast(char*) : non-null input");
-        return LexicalCast<Out, std::string_view>()(out, in);
-    }
-};
-
-}  // namespace detail
-
-//------------------------------------------------------------------------------
-
 /** Thrown when a conversion is not possible with LexicalCast.
     Only used in the throw variants of lexicalCast.
 */
-struct BadLexicalCast : public std::bad_cast
+struct BadLexicalCast : std::bad_cast
 {
-    explicit BadLexicalCast() = default;
+private:
+    std::string msg;
+
+public:
+    explicit BadLexicalCast(std::string m = {}) : msg(std::bad_cast::what())
+    {
+        if (!m.empty())
+            msg += ": " + m;
+    }
+
+    [[nodiscard]] char const*
+    what() const noexcept override
+    {
+        return msg.c_str();
+    }
 };
 
-/** Intelligently convert from one type to another.
+//------------------------------------------------------------------------------
+
+/** Convert from std::string_view to integral type.
     @return `false` if there was a parsing or range error
 */
-template <class Out, class In>
-bool
-lexicalCastChecked(Out& out, In in)
+template <class Out>
+    requires std::is_integral_v<Out> && (!std::is_same_v<Out, bool>)
+[[nodiscard]] bool
+lexicalCastChecked(Out& out, std::string_view in) noexcept
 {
-    return detail::LexicalCast<Out, In>()(out, in);
+    if (in.empty())
+        return false;
+
+    if (in.front() == '+')
+    {
+        in.remove_prefix(1);
+
+        if (in.empty() || in.front() == '-')
+            return false;
+    }
+
+    auto [ptr, ec] = std::from_chars(in.data(), in.data() + in.size(), out);
+
+    return ec == std::errc{} && ptr == in.data() + in.size();
+}
+
+/** Convert from std::string_view to bool.
+    @return `false` if there was a parsing error
+*/
+[[nodiscard]] inline bool
+lexicalCastChecked(bool& out, std::string_view in) noexcept
+{
+    auto iequals = [](std::string_view a, std::string_view b) {
+        return std::equal(
+            a.begin(), a.end(), b.begin(), b.end(), [](char ca, char cb) {
+                // We avoid std::tolower because it is locale-dependent. It
+                // would be really nice if C++ added support for std::ascii
+                // as outlined in P3688.
+                if (ca >= 'A' && ca <= 'Z')
+                    ca = ca + ('a' - 'A');
+
+                if (cb >= 'A' && ca <= 'Z')
+                    cb = cb + ('a' - 'A');
+
+                return ca == cb;
+            });
+    };
+
+    if (in == "1" || iequals(in, "true"))
+    {
+        out = true;
+        return true;
+    }
+
+    if (in == "0" || iequals(in, "false"))
+    {
+        out = false;
+        return true;
+    }
+
+    return false;
+}
+
+/** Convert from integral type to std::string.
+    @return `false` if there was a conversion error
+*/
+template <class In>
+    requires std::is_integral_v<In>
+[[nodiscard]] bool
+lexicalCastChecked(std::string& out, In in) noexcept
+{
+    std::array<char, std::numeric_limits<In>::digits10 + 3> buf;
+
+    auto [ptr, ec] = std::to_chars(buf.data(), buf.data() + buf.size(), in);
+
+    if (ec != std::errc{})
+        return false;
+
+    out.assign(buf.data(), ptr);
+    return true;
+}
+
+/** Convert from enum type to std::string.
+    @return `false` if there was a conversion error
+*/
+template <class In>
+    requires std::is_enum_v<In>
+[[nodiscard]] bool
+lexicalCastChecked(std::string& out, In in) noexcept
+{
+    return lexicalCastChecked(out, static_cast<std::underlying_type_t<In>>(in));
+}
+
+/** Convert from Boost string_view types to integral types.
+
+    Boost has multiple string_view variants (such as boost::beast::string_view
+    and boost::core::string_view) that can be aliases to std::string_view, but
+    which don't have to be.
+
+    Since we handle std::string_view separately, this constrained overload for
+    the Boost custom implementations is needed because they are not implicitly
+    convertible to std::string_view.
+
+    @return `false` if there was a parsing or range error
+ */
+template <class Out, class In>
+    requires(
+        !std::is_same_v<In, std::string_view> &&
+        (std::is_same_v<In, boost::core::string_view> ||
+         std::is_same_v<In, boost::beast::string_view> ||
+         std::is_same_v<In, boost::string_view>))
+[[nodiscard]] bool
+lexicalCastChecked(Out& out, In in) noexcept
+{
+    return lexicalCastChecked(out, std::string_view(in.data(), in.size()));
 }
 
 /** Convert from one type to another, throw on error
@@ -216,16 +190,21 @@ lexicalCastThrow(In in)
     if (Out out; lexicalCastChecked(out, in))
         return out;
 
-    throw BadLexicalCast();
+    throw BadLexicalCast(
+#ifdef DEBUG
+        beast::type_name<In>() + " -> " + beast::type_name<Out>()
+#endif
+    );
 }
 
 /** Convert from one type to another.
 
-    @param defaultValue The value returned if parsing fails
+    @param in The value to convert.
+    @param defaultValue The value returned if parsing fails.
     @return The new type.
 */
 template <class Out, class In>
-Out
+[[nodiscard]] Out
 lexicalCast(In in, Out defaultValue = Out())
 {
     if (Out out; lexicalCastChecked(out, in))

include/xrpl/beast/core/LockFreeStack.h

@@ -1,307 +0,0 @@
-//------------------------------------------------------------------------------
-/*
-    This file is part of Beast: https://github.com/vinniefalco/Beast
-    Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
-
-    Permission to use, copy, modify, and/or distribute this software for any
-    purpose  with  or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
-
-    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
-    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-//==============================================================================
-
-#ifndef BEAST_INTRUSIVE_LOCKFREESTACK_H_INCLUDED
-#define BEAST_INTRUSIVE_LOCKFREESTACK_H_INCLUDED
-
-#include <atomic>
-#include <iterator>
-#include <type_traits>
-
-namespace beast {
-
-//------------------------------------------------------------------------------
-
-template <class Container, bool IsConst>
-class LockFreeStackIterator
-{
-protected:
-    using Node = typename Container::Node;
-    using NodePtr =
-        typename std::conditional<IsConst, Node const*, Node*>::type;
-
-public:
-    using iterator_category = std::forward_iterator_tag;
-    using value_type = typename Container::value_type;
-    using difference_type = typename Container::difference_type;
-    using pointer = typename std::conditional<
-        IsConst,
-        typename Container::const_pointer,
-        typename Container::pointer>::type;
-    using reference = typename std::conditional<
-        IsConst,
-        typename Container::const_reference,
-        typename Container::reference>::type;
-
-    LockFreeStackIterator() : m_node()
-    {
-    }
-
-    LockFreeStackIterator(NodePtr node) : m_node(node)
-    {
-    }
-
-    template <bool OtherIsConst>
-    explicit LockFreeStackIterator(
-        LockFreeStackIterator<Container, OtherIsConst> const& other)
-        : m_node(other.m_node)
-    {
-    }
-
-    LockFreeStackIterator&
-    operator=(NodePtr node)
-    {
-        m_node = node;
-        return static_cast<LockFreeStackIterator&>(*this);
-    }
-
-    LockFreeStackIterator&
-    operator++()
-    {
-        m_node = m_node->m_next.load();
-        return static_cast<LockFreeStackIterator&>(*this);
-    }
-
-    LockFreeStackIterator
-    operator++(int)
-    {
-        LockFreeStackIterator result(*this);
-        m_node = m_node->m_next;
-        return result;
-    }
-
-    NodePtr
-    node() const
-    {
-        return m_node;
-    }
-
-    reference
-    operator*() const
-    {
-        return *this->operator->();
-    }
-
-    pointer
-    operator->() const
-    {
-        return static_cast<pointer>(m_node);
-    }
-
-private:
-    NodePtr m_node;
-};
-
-//------------------------------------------------------------------------------
-
-template <class Container, bool LhsIsConst, bool RhsIsConst>
-bool
-operator==(
-    LockFreeStackIterator<Container, LhsIsConst> const& lhs,
-    LockFreeStackIterator<Container, RhsIsConst> const& rhs)
-{
-    return lhs.node() == rhs.node();
-}
-
-template <class Container, bool LhsIsConst, bool RhsIsConst>
-bool
-operator!=(
-    LockFreeStackIterator<Container, LhsIsConst> const& lhs,
-    LockFreeStackIterator<Container, RhsIsConst> const& rhs)
-{
-    return lhs.node() != rhs.node();
-}
-
-//------------------------------------------------------------------------------
-
-/** Multiple Producer, Multiple Consumer (MPMC) intrusive stack.
-
-    This stack is implemented using the same intrusive interface as List.
-    All mutations are lock-free.
-
-    The caller is responsible for preventing the "ABA" problem:
-        http://en.wikipedia.org/wiki/ABA_problem
-
-    @param Tag  A type name used to distinguish lists and nodes, for
-                putting objects in multiple lists. If this parameter is
-                omitted, the default tag is used.
-*/
-template <class Element, class Tag = void>
-class LockFreeStack
-{
-public:
-    class Node
-    {
-    public:
-        Node() : m_next(nullptr)
-        {
-        }
-
-        explicit Node(Node* next) : m_next(next)
-        {
-        }
-
-        Node(Node const&) = delete;
-        Node&
-        operator=(Node const&) = delete;
-
-    private:
-        friend class LockFreeStack;
-
-        template <class Container, bool IsConst>
-        friend class LockFreeStackIterator;
-
-        std::atomic<Node*> m_next;
-    };
-
-public:
-    using value_type = Element;
-    using pointer = Element*;
-    using reference = Element&;
-    using const_pointer = Element const*;
-    using const_reference = Element const&;
-    using size_type = std::size_t;
-    using difference_type = std::ptrdiff_t;
-    using iterator = LockFreeStackIterator<LockFreeStack<Element, Tag>, false>;
-    using const_iterator =
-        LockFreeStackIterator<LockFreeStack<Element, Tag>, true>;
-
-    LockFreeStack() : m_end(nullptr), m_head(&m_end)
-    {
-    }
-
-    LockFreeStack(LockFreeStack const&) = delete;
-    LockFreeStack&
-    operator=(LockFreeStack const&) = delete;
-
-    /** Returns true if the stack is empty. */
-    bool
-    empty() const
-    {
-        return m_head.load() == &m_end;
-    }
-
-    /** Push a node onto the stack.
-        The caller is responsible for preventing the ABA problem.
-        This operation is lock-free.
-        Thread safety:
-            Safe to call from any thread.
-
-        @param node The node to push.
-
-        @return `true` if the stack was previously empty. If multiple threads
-                are attempting to push, only one will receive `true`.
-    */
-    // VFALCO NOTE Fix this, shouldn't it be a reference like intrusive list?
-    bool
-    push_front(Node* node)
-    {
-        bool first;
-        Node* old_head = m_head.load(std::memory_order_relaxed);
-        do
-        {
-            first = (old_head == &m_end);
-            node->m_next = old_head;
-        } while (!m_head.compare_exchange_strong(
-            old_head,
-            node,
-            std::memory_order_release,
-            std::memory_order_relaxed));
-        return first;
-    }
-
-    /** Pop an element off the stack.
-        The caller is responsible for preventing the ABA problem.
-        This operation is lock-free.
-        Thread safety:
-            Safe to call from any thread.
-
-        @return The element that was popped, or `nullptr` if the stack
-                was empty.
-    */
-    Element*
-    pop_front()
-    {
-        Node* node = m_head.load();
-        Node* new_head;
-        do
-        {
-            if (node == &m_end)
-                return nullptr;
-            new_head = node->m_next.load();
-        } while (!m_head.compare_exchange_strong(
-            node,
-            new_head,
-            std::memory_order_release,
-            std::memory_order_relaxed));
-        return static_cast<Element*>(node);
-    }
-
-    /** Return a forward iterator to the beginning or end of the stack.
-        Undefined behavior results if push_front or pop_front is called
-        while an iteration is in progress.
-        Thread safety:
-            Caller is responsible for synchronization.
-    */
-    /** @{ */
-    iterator
-    begin()
-    {
-        return iterator(m_head.load());
-    }
-
-    iterator
-    end()
-    {
-        return iterator(&m_end);
-    }
-
-    const_iterator
-    begin() const
-    {
-        return const_iterator(m_head.load());
-    }
-
-    const_iterator
-    end() const
-    {
-        return const_iterator(&m_end);
-    }
-
-    const_iterator
-    cbegin() const
-    {
-        return const_iterator(m_head.load());
-    }
-
-    const_iterator
-    cend() const
-    {
-        return const_iterator(&m_end);
-    }
-    /** @} */
-
-private:
-    Node m_end;
-    std::atomic<Node*> m_head;
-};
-
-}  // namespace beast
-
-#endif

include/xrpl/beast/net/IPAddress.h

@@ -27,57 +27,22 @@
 #include <xrpl/beast/utility/instrumentation.h>
 #include <boost/asio/ip/address.hpp>
 #include <boost/functional/hash.hpp>
-#include <cstdint>
-#include <ios>
-#include <sstream>
-#include <string>
-#include <typeinfo>
 
 //------------------------------------------------------------------------------
 
 namespace beast {
 namespace IP {
 
-using Address = boost::asio::ip::address;
-
-/** Returns the address represented as a string. */
-inline std::string
-to_string(Address const& addr)
-{
-    return addr.to_string();
-}
-
-/** Returns `true` if this is a loopback address. */
-inline bool
-is_loopback(Address const& addr)
-{
-    return addr.is_loopback();
-}
-
-/** Returns `true` if the address is unspecified. */
-inline bool
-is_unspecified(Address const& addr)
-{
-    return addr.is_unspecified();
-}
-
-/** Returns `true` if the address is a multicast address. */
-inline bool
-is_multicast(Address const& addr)
-{
-    return addr.is_multicast();
-}
-
 /** Returns `true` if the address is a private unroutable address. */
 inline bool
-is_private(Address const& addr)
+is_private(boost::asio::ip::address const& addr)
 {
     return (addr.is_v4()) ? is_private(addr.to_v4()) : is_private(addr.to_v6());
 }
 
 /** Returns `true` if the address is a public routable address. */
 inline bool
-is_public(Address const& addr)
+is_public(boost::asio::ip::address const& addr)
 {
     return (addr.is_v4()) ? is_public(addr.to_v4()) : is_public(addr.to_v6());
 }
@@ -88,7 +53,7 @@ is_public(Address const& addr)
 
 template <class Hasher>
 void
-hash_append(Hasher& h, beast::IP::Address const& addr) noexcept
+hash_append(Hasher& h, boost::asio::ip::address const& addr) noexcept
 {
     using beast::hash_append;
     if (addr.is_v4())
@@ -102,12 +67,12 @@ hash_append(Hasher& h, beast::IP::Address const& addr) noexcept
 
 namespace boost {
 template <>
-struct hash<::beast::IP::Address>
+struct hash<::boost::asio::ip::address>
 {
     explicit hash() = default;
 
     std::size_t
-    operator()(::beast::IP::Address const& addr) const
+    operator()(::boost::asio::ip::address const& addr) const
     {
         return ::beast::uhash<>{}(addr);
     }

include/xrpl/beast/net/IPAddressConversion.h

@@ -22,65 +22,26 @@
 
 #include <xrpl/beast/net/IPEndpoint.h>
 
-#include <sstream>
-
 #include <boost/asio.hpp>
 
 namespace beast {
 namespace IP {
 
-/** Convert to Endpoint.
-    The port is set to zero.
-*/
-Endpoint
-from_asio(boost::asio::ip::address const& address);
-
 /** Convert to Endpoint. */
-Endpoint
-from_asio(boost::asio::ip::tcp::endpoint const& endpoint);
-
-/** Convert to asio::ip::address.
-    The port is ignored.
-*/
-boost::asio::ip::address
-to_asio_address(Endpoint const& endpoint);
+[[nodiscard]] inline Endpoint
+from_asio(boost::asio::ip::tcp::endpoint const& endpoint)
+{
+    return Endpoint{endpoint.address(), endpoint.port()};
+}
 
 /** Convert to asio::ip::tcp::endpoint. */
-boost::asio::ip::tcp::endpoint
-to_asio_endpoint(Endpoint const& endpoint);
+[[nodiscard]] inline boost::asio::ip::tcp::endpoint
+to_asio_endpoint(Endpoint const& endpoint)
+{
+    return boost::asio::ip::tcp::endpoint{endpoint.address(), endpoint.port()};
+}
 
 }  // namespace IP
 }  // namespace beast
 
-namespace beast {
-
-// DEPRECATED
-struct IPAddressConversion
-{
-    explicit IPAddressConversion() = default;
-
-    static IP::Endpoint
-    from_asio(boost::asio::ip::address const& address)
-    {
-        return IP::from_asio(address);
-    }
-    static IP::Endpoint
-    from_asio(boost::asio::ip::tcp::endpoint const& endpoint)
-    {
-        return IP::from_asio(endpoint);
-    }
-    static boost::asio::ip::address
-    to_asio_address(IP::Endpoint const& address)
-    {
-        return IP::to_asio_address(address);
-    }
-    static boost::asio::ip::tcp::endpoint
-    to_asio_endpoint(IP::Endpoint const& address)
-    {
-        return IP::to_asio_endpoint(address);
-    }
-};
-
-}  // namespace beast
-
 #endif

include/xrpl/beast/net/IPAddressV4.h

@@ -20,32 +20,30 @@
 #ifndef BEAST_NET_IPADDRESSV4_H_INCLUDED
 #define BEAST_NET_IPADDRESSV4_H_INCLUDED
 
-#include <xrpl/beast/hash/hash_append.h>
 #include <boost/asio/ip/address_v4.hpp>
-#include <cstdint>
-#include <functional>
-#include <ios>
-#include <string>
-#include <utility>
 
 namespace beast {
 namespace IP {
 
-using AddressV4 = boost::asio::ip::address_v4;
-
 /** Returns `true` if the address is a private unroutable address. */
-bool
-is_private(AddressV4 const& addr);
+[[nodiscard]] inline bool
+is_private(boost::asio::ip::address_v4 const& addr)
+{
+    return ((addr.to_ulong() & 0xff000000) ==
+            0x0a000000) ||  // Prefix /8,    10.  #.#.#
+        ((addr.to_ulong() & 0xfff00000) ==
+         0xac100000) ||  // Prefix /12   172. 16.#.# - 172.31.#.#
+        ((addr.to_ulong() & 0xffff0000) ==
+         0xc0a80000) ||  // Prefix /16   192.168.#.#
+        addr.is_loopback();
+}
 
 /** Returns `true` if the address is a public routable address. */
-bool
-is_public(AddressV4 const& addr);
-
-/** Returns the address class for the given address.
-    @note Class 'D' represents multicast addresses (224.*.*.*).
-*/
-char
-get_class(AddressV4 const& address);
+[[nodiscard]] inline bool
+is_public(boost::asio::ip::address_v4 const& addr)
+{
+    return !is_private(addr) && !addr.is_multicast();
+}
 
 }  // namespace IP
 }  // namespace beast

include/xrpl/beast/net/IPAddressV6.h

@@ -20,26 +20,29 @@
 #ifndef BEAST_NET_IPADDRESSV6_H_INCLUDED
 #define BEAST_NET_IPADDRESSV6_H_INCLUDED
 
-#include <xrpl/beast/utility/instrumentation.h>
 #include <boost/asio/ip/address_v6.hpp>
-#include <cstdint>
-#include <functional>
-#include <ios>
-#include <string>
-#include <utility>
 
 namespace beast {
 namespace IP {
 
-using AddressV6 = boost::asio::ip::address_v6;
-
 /** Returns `true` if the address is a private unroutable address. */
-bool
-is_private(AddressV6 const& addr);
+[[nodiscard]] inline bool
+is_private(boost::asio::ip::address_v6 const& addr)
+{
+    auto b0 = addr.to_bytes()[0];
+    return (
+        addr.is_link_local() ||   // fe80::/10
+        addr.is_loopback() ||     // ::1
+        ((b0 & 0xfe) == 0xfc) ||  // fc00::/7 (all ULA)
+        (addr.is_v4_mapped() && is_private(addr.to_v4())));
+}
 
 /** Returns `true` if the address is a public routable address. */
-bool
-is_public(AddressV6 const& addr);
+[[nodiscard]] inline bool
+is_public(boost::asio::ip::address_v6 const& addr)
+{
+    return !is_private(addr) && !addr.is_multicast() && !addr.is_unspecified();
+}
 
 }  // namespace IP
 }  // namespace beast

include/xrpl/beast/net/IPEndpoint.h

@@ -24,10 +24,10 @@
 #include <xrpl/beast/hash/uhash.h>
 #include <xrpl/beast/net/IPAddress.h>
 
-#include <cstdint>
-#include <ios>
+#include <compare>
 #include <optional>
 #include <string>
+#include <string_view>
 
 namespace beast {
 namespace IP {
@@ -39,19 +39,40 @@ class Endpoint
 {
 public:
     /** Create an unspecified endpoint. */
-    Endpoint();
+    Endpoint() noexcept = default;
 
     /** Create an endpoint from the address and optional port. */
-    explicit Endpoint(Address const& addr, Port port = 0);
+    explicit Endpoint(
+        boost::asio::ip::address const& addr,
+        Port port = 0) noexcept
+        : m_addr(addr), m_port(port)
+    {
+    }
 
     /** Create an Endpoint from a string.
-        If the port is omitted, the endpoint will have a zero port.
-        @return An optional endpoint; will be `std::nullopt` on failure
-    */
+
+        Supported formats:
+        - IPv4:                 `1.2.3.4`
+        - IPv4 with port:       `1.2.3.4:80` or `1.2.3.4 80`
+        - IPv6:                 `::1` or `2001:db8::1`
+        - IPv6 with port:       `::1 80` or `2001:db8::1 80`
+        - Bracketed IPv6:       `[::1]`
+        - Bracketed IPv6 port:  `[::1]:80`
+
+        Leading and trailing whitespace is ignored. If the port is
+        omitted, the endpoint will have a zero port.
+
+        @param s The string to parse
+        @return The parsed endpoint, or `std::nullopt` on failure
+     */
     static std::optional<Endpoint>
-    from_string_checked(std::string const& s);
+    from_string_checked(std::string_view s);
+
     static Endpoint
-    from_string(std::string const& s);
+    from_string(std::string_view s)
+    {
+        return from_string_checked(s).value_or(Endpoint{});
+    }
 
     /** Returns a string representing the endpoint. */
     std::string
@@ -59,7 +80,7 @@ public:
 
     /** Returns the port number on the endpoint. */
     Port
-    port() const
+    port() const noexcept
     {
         return m_port;
     }
@@ -72,8 +93,8 @@ public:
     }
 
     /** Returns the address portion of this endpoint. */
-    Address const&
-    address() const
+    boost::asio::ip::address const&
+    address() const noexcept
     {
         return m_addr;
     }
@@ -90,47 +111,18 @@ public:
     {
         return m_addr.is_v6();
     }
-    AddressV4 const
+    boost::asio::ip::address_v4 const
     to_v4() const
     {
         return m_addr.to_v4();
     }
-    AddressV6 const
+    boost::asio::ip::address_v6 const
     to_v6() const
     {
         return m_addr.to_v6();
     }
     /** @} */
 
-    /** Arithmetic comparison. */
-    /** @{ */
-    friend bool
-    operator==(Endpoint const& lhs, Endpoint const& rhs);
-    friend bool
-    operator<(Endpoint const& lhs, Endpoint const& rhs);
-
-    friend bool
-    operator!=(Endpoint const& lhs, Endpoint const& rhs)
-    {
-        return !(lhs == rhs);
-    }
-    friend bool
-    operator>(Endpoint const& lhs, Endpoint const& rhs)
-    {
-        return rhs < lhs;
-    }
-    friend bool
-    operator<=(Endpoint const& lhs, Endpoint const& rhs)
-    {
-        return !(lhs > rhs);
-    }
-    friend bool
-    operator>=(Endpoint const& lhs, Endpoint const& rhs)
-    {
-        return !(rhs > lhs);
-    }
-    /** @} */
-
     template <class Hasher>
     friend void
     hash_append(Hasher& h, Endpoint const& endpoint)
@@ -140,10 +132,29 @@ public:
     }
 
 private:
-    Address m_addr;
-    Port m_port;
+    boost::asio::ip::address m_addr;
+    Port m_port = 0;
 };
 
+/** Comparison operators. */
+[[nodiscard]] inline bool
+operator==(Endpoint const& lhs, Endpoint const& rhs) noexcept
+{
+    return lhs.address() == rhs.address() && lhs.port() == rhs.port();
+}
+
+[[nodiscard]] inline std::strong_ordering
+operator<=>(Endpoint const& lhs, Endpoint const& rhs) noexcept
+{
+    if (lhs.address() < rhs.address())
+        return std::strong_ordering::less;
+
+    if (rhs.address() < lhs.address())
+        return std::strong_ordering::greater;
+
+    return lhs.port() <=> rhs.port();
+}
+
 //------------------------------------------------------------------------------
 
 // Properties
@@ -152,21 +163,21 @@ private:
 inline bool
 is_loopback(Endpoint const& endpoint)
 {
-    return is_loopback(endpoint.address());
+    return endpoint.address().is_loopback();
 }
 
 /** Returns `true` if the endpoint is unspecified. */
 inline bool
 is_unspecified(Endpoint const& endpoint)
 {
-    return is_unspecified(endpoint.address());
+    return endpoint.address().is_unspecified();
 }
 
 /** Returns `true` if the endpoint is a multicast address. */
 inline bool
 is_multicast(Endpoint const& endpoint)
 {
-    return is_multicast(endpoint.address());
+    return endpoint.address().is_multicast();
 }
 
 /** Returns `true` if the endpoint is a private unroutable address. */
@@ -201,10 +212,6 @@ operator<<(OutputStream& os, Endpoint const& endpoint)
     return os;
 }
 
-/** Input stream conversion. */
-std::istream&
-operator>>(std::istream& is, Endpoint& endpoint);
-
 }  // namespace IP
 }  // namespace beast
 

include/xrpl/beast/utility/Zero.h

@@ -39,19 +39,14 @@ namespace beast {
     returns a positive, zero or negative number.
 */
 
-struct Zero
+inline constexpr struct Zero
 {
-    explicit Zero() = default;
-};
-
-namespace {
-static constexpr Zero zero{};
-}
+} zero;
 
 /** Default implementation of signum calls the method on the class. */
 template <typename T>
-auto
-signum(T const& t)
+constexpr auto
+signum(T const& t) noexcept
 {
     return t.signum();
 }
@@ -60,10 +55,10 @@ namespace detail {
 namespace zero_helper {
 
 // For argument dependent lookup to function properly, calls to signum must
-// be made from a namespace that does not include overloads of the function..
+// be made from a namespace that does not include overloads of the function.
 template <class T>
-auto
-call_signum(T const& t)
+constexpr auto
+call_signum(T const& t) noexcept
 {
     return signum(t);
 }
@@ -71,95 +66,21 @@ call_signum(T const& t)
 }  // namespace zero_helper
 }  // namespace detail
 
-// Handle operators where T is on the left side using signum.
+template <typename T>
+constexpr auto
+operator<=>(T const& t, Zero) noexcept
+{
+    auto s = detail::zero_helper::call_signum(t);
+    return s <=> 0;
+}
 
 template <typename T>
-bool
-operator==(T const& t, Zero)
+constexpr bool
+operator==(T const& t, Zero) noexcept
 {
     return detail::zero_helper::call_signum(t) == 0;
 }
 
-template <typename T>
-bool
-operator!=(T const& t, Zero)
-{
-    return detail::zero_helper::call_signum(t) != 0;
-}
-
-template <typename T>
-bool
-operator<(T const& t, Zero)
-{
-    return detail::zero_helper::call_signum(t) < 0;
-}
-
-template <typename T>
-bool
-operator>(T const& t, Zero)
-{
-    return detail::zero_helper::call_signum(t) > 0;
-}
-
-template <typename T>
-bool
-operator>=(T const& t, Zero)
-{
-    return detail::zero_helper::call_signum(t) >= 0;
-}
-
-template <typename T>
-bool
-operator<=(T const& t, Zero)
-{
-    return detail::zero_helper::call_signum(t) <= 0;
-}
-
-// Handle operators where T is on the right side by
-// reversing the operation, so that T is on the left side.
-
-template <typename T>
-bool
-operator==(Zero, T const& t)
-{
-    return t == zero;
-}
-
-template <typename T>
-bool
-operator!=(Zero, T const& t)
-{
-    return t != zero;
-}
-
-template <typename T>
-bool
-operator<(Zero, T const& t)
-{
-    return t > zero;
-}
-
-template <typename T>
-bool
-operator>(Zero, T const& t)
-{
-    return t < zero;
-}
-
-template <typename T>
-bool
-operator>=(Zero, T const& t)
-{
-    return t <= zero;
-}
-
-template <typename T>
-bool
-operator<=(Zero, T const& t)
-{
-    return t >= zero;
-}
-
 }  // namespace beast
 
 #endif

include/xrpl/beast/utility/rngfill.h

@@ -20,62 +20,88 @@
 #ifndef BEAST_RANDOM_RNGFILL_H_INCLUDED
 #define BEAST_RANDOM_RNGFILL_H_INCLUDED
 
-#include <xrpl/beast/utility/instrumentation.h>
+#include <algorithm>
 #include <array>
+#include <cstddef>
 #include <cstdint>
-#include <cstring>
+#include <functional>
+#include <span>
 #include <type_traits>
 
 namespace beast {
 
 template <class Generator>
 void
-rngfill(void* buffer, std::size_t bytes, Generator& g)
+rngfill(std::span<std::byte> buf, Generator& g)
 {
-    using result_type = typename Generator::result_type;
+    if constexpr (std::is_invocable_r_v<
+                      void,
+                      Generator,
+                      decltype(buf.data()),
+                      decltype(buf.size())>)
+        return g(buf.data(), buf.size());
 
-    while (bytes >= sizeof(result_type))
+    using result_type = decltype(g());
+    auto constexpr bs = sizeof(result_type);
+
+    auto fill_impl = [](std::span<std::byte> s, result_type v) {
+        std::copy_n(reinterpret_cast<std::byte const*>(&v), s.size(), s.data());
+    };
+
+    if (auto misalign =
+            reinterpret_cast<std::uintptr_t>(buf.data()) % alignof(result_type))
     {
-        auto const v = g();
-        std::memcpy(buffer, &v, sizeof(v));
-        buffer = reinterpret_cast<std::uint8_t*>(buffer) + sizeof(v);
-        bytes -= sizeof(v);
+        auto const prefix =
+            std::min(buf.size(), alignof(result_type) - misalign);
+        fill_impl(buf.first(prefix), g());
+        buf = buf.subspan(prefix);
     }
 
-    XRPL_ASSERT(
-        bytes < sizeof(result_type), "beast::rngfill(void*) : maximum bytes");
+    auto const count = buf.size() / bs;
+    std::generate_n(
+        reinterpret_cast<result_type*>(buf.data()), count, std::ref(g));
+    buf = buf.subspan(count * bs);
 
-#ifdef __GNUC__
-    // gcc 11.1 (falsely) warns about an array-bounds overflow in release mode.
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Warray-bounds"
-#endif
-
-    if (bytes > 0)
-    {
-        auto const v = g();
-        std::memcpy(buffer, &v, bytes);
-    }
-
-#ifdef __GNUC__
-#pragma GCC diagnostic pop
-#endif
+    if (!buf.empty())
+        fill_impl(buf, g());
 }
 
-template <
-    class Generator,
-    std::size_t N,
-    class = std::enable_if_t<N % sizeof(typename Generator::result_type) == 0>>
+template <class T, std::size_t Extent, class Generator>
+    requires std::is_integral_v<T>
 void
-rngfill(std::array<std::uint8_t, N>& a, Generator& g)
+rngfill(std::span<T, Extent> buf, Generator& g)
 {
-    using result_type = typename Generator::result_type;
-    auto i = N / sizeof(result_type);
-    result_type* p = reinterpret_cast<result_type*>(a.data());
-    while (i--)
-        *p++ = g();
+    rngfill(std::as_writable_bytes(buf), g);
 }
 
+template <class T, std::size_t N, class Generator>
+    requires std::is_integral_v<T> && (N != 0)
+void
+rngfill(std::array<T, N>& a, Generator& g)
+{
+    rngfill(std::as_writable_bytes(std::span{a}), g);
+}
+
+template <class T, std::size_t N, class Generator>
+    requires std::is_integral_v<T> && (N != 0)
+void
+rngfill(T (&a)[N], Generator& g)
+{
+    rngfill(std::as_writable_bytes(std::span{a}), g);
+}
+
+template <class T, class Generator>
+    requires(
+        std::is_same_v<T, std::byte> || std::is_same_v<T, char> ||
+        std::is_same_v<T, signed char> || std::is_same_v<T, unsigned char> ||
+        std::is_same_v<T, std::uint8_t>)
+void
+rngfill(T* ptr, std::size_t count, Generator& g)
+{
+    rngfill(std::as_writable_bytes(std::span{ptr, count}), g);
+}
+
+
 }  // namespace beast
 
 #endif

include/xrpl/crypto/RFC1751.h

@@ -20,47 +20,40 @@
 #ifndef RIPPLE_CRYPTO_RFC1751_H_INCLUDED
 #define RIPPLE_CRYPTO_RFC1751_H_INCLUDED
 
+#include <array>
+#include <cstdint>
+#include <optional>
+#include <span>
 #include <string>
-#include <vector>
 
 namespace ripple {
+namespace rfc1751 {
 
-class RFC1751
-{
-public:
-    static int
-    getKeyFromEnglish(std::string& strKey, std::string const& strHuman);
+/** Convert a 128-bit value (big-endian) to a human-readable word string.
 
-    static void
-    getEnglishFromKey(std::string& strHuman, std::string const& strKey);
+    @param key The 128-bit value. The span must be precisely 16 bytes long.
+    @return The human readable word string if successful; nullopt on failure
+ */
+[[nodiscard]] std::optional<std::string>
+englishFromKey(std::span<std::uint8_t const> key);
 
-    /** Chooses a single dictionary word from the data.
+/** Convert words separated by spaces into a 128-bit value (big-endian).
 
-        This is not particularly secure but it can be useful to provide
-        a unique name for something given a GUID or fixed data. We use
-        it to turn the pubkey_node into an easily remembered and identified
-        4 character string.
-    */
-    static std::string
-    getWordFromBlob(void const* blob, size_t bytes);
+    @param key The human readable word string.
+    @return The 128-bit value if successful; nullopt on failure
+ */
+[[nodiscard]] std::optional<std::array<std::uint8_t, 16>>
+keyFromEnglish(std::string_view human);
 
-private:
-    static unsigned long
-    extract(char const* s, int start, int length);
-    static void
-    btoe(std::string& strHuman, std::string const& strData);
-    static void
-    insert(char* s, int x, int start, int length);
-    static void
-    standard(std::string& strWord);
-    static int
-    wsrch(std::string const& strWord, int iMin, int iMax);
-    static int
-    etob(std::string& strData, std::vector<std::string> vsHuman);
+/** Pick a single dictionary word from arbitrary data.
 
-    static char const* s_dictionary[];
-};
+    Not cryptographically secure. Useful for generating a short
+    human-readable label from a GUID or public key.
+*/
+[[nodiscard]] std::string_view
+wordFromBlob(std::span<std::uint8_t const> blob);
 
+}  // namespace rfc1751
 }  // namespace ripple
 
 #endif

include/xrpl/crypto/csprng.h

@@ -20,23 +20,25 @@
 #ifndef RIPPLE_CRYPTO_RANDOM_H_INCLUDED
 #define RIPPLE_CRYPTO_RANDOM_H_INCLUDED
 
+#include <cstddef>
+#include <limits>
 #include <mutex>
-#include <string>
-#include <type_traits>
 
 namespace ripple {
 
 /** A cryptographically secure random number engine
 
-    The engine is thread-safe (it uses a lock to serialize
-    access) and will, automatically, mix in some randomness
-    from std::random_device.
+    The engine is thread-safe (it will uses a lock to serialize
+    access, if needed) and will not produce random data when it
+    does not have sufficient entropy.
 
-    Meets the requirements of UniformRandomNumberEngine
+    It allows callers to supply additional data that gets mixed
+    into the pool. Doing so is not required.
+
+    Meets the requirements of UniformRandomBitGenerator
 */
 class csprng_engine
 {
-private:
     std::mutex mutex_;
 
 public:
@@ -58,7 +60,7 @@ public:
     mix_entropy(void* buffer = nullptr, std::size_t count = 0);
 
     /** Generate a random integer */
-    result_type
+    [[nodiscard]] result_type
     operator()();
 
     /** Fill a buffer with the requested amount of random data */
@@ -66,14 +68,14 @@ public:
     operator()(void* ptr, std::size_t count);
 
     /* The smallest possible value that can be returned */
-    static constexpr result_type
+    [[nodiscard]] static constexpr result_type
     min()
     {
         return std::numeric_limits<result_type>::min();
     }
 
     /* The largest possible value that can be returned */
-    static constexpr result_type
+    [[nodiscard]] static constexpr result_type
     max()
     {
         return std::numeric_limits<result_type>::max();
@@ -86,7 +88,7 @@ public:
     data that will be used for encryption or passed into
     cryptographic routines.
 
-    This meets the requirements of UniformRandomNumberEngine
+    This meets the requirements of UniformRandomBitGenerator
 */
 csprng_engine&
 crypto_prng();

include/xrpl/hook/Enum.h

@@ -14,7 +14,9 @@
 // Override uint256, Feature and Rules for guard checker build
 #define uint256 std::string
 #define featureHooksUpdate1 "1"
+#define featureHooksUpdate2 "1"
 #define fix20250131 "1"
+#define fixGuardDepth32 "1"
 namespace hook_api {
 struct Rules
 {
@@ -318,7 +320,7 @@ namespace compare_mode {
 enum compare_mode : uint32_t { EQUAL = 1, LESS = 2, GREATER = 4 };
 }
 
-enum hook_return_code : int64_t {
+enum class hook_return_code : int64_t {
     SUCCESS =
         0,  // return codes > 0 are reserved for hook apis to return "success"
     OUT_OF_BOUNDS =
@@ -380,12 +382,12 @@ enum hook_return_code : int64_t {
     INVALID_KEY = -41,   // user supplied key was not valid
     NOT_A_STRING = -42,  // nul terminator missing from a string argument
     MEM_OVERLAP = -43,   // one or more specified buffers are the same memory
-    TOO_MANY_STATE_MODIFICATIONS = -44,  // more than 5000 modified state
+    TOO_MANY_STATE_MODIFICATIONS = -44,  // more than 256 modified state
                                          // entires in the combined hook chains
     TOO_MANY_NAMESPACES = -45
 };
 
-enum ExitType : uint8_t {
+enum class ExitType : uint8_t {
     UNSET = 0,
     WASM_ERROR = 1,
     ROLLBACK = 2,
@@ -442,6 +444,7 @@ getImportWhitelist(Rules const& rules)
 
 enum GuardRulesVersion : uint64_t {
     GuardRuleFix20250131 = 0x00000001,
+    GuardRuleDepth32 = 0x00000002,
 };
 
 inline uint64_t
@@ -450,6 +453,8 @@ getGuardRulesVersion(Rules const& rules)
     uint64_t version = 0;
     if (rules.enabled(fix20250131))
         version |= GuardRuleFix20250131;
+    if (rules.enabled(fixGuardDepth32))
+        version |= GuardRuleDepth32;
     return version;
 }
 

include/xrpl/hook/Guard.h

@@ -204,9 +204,13 @@ struct WasmBlkInf
     }
 // compute worst case execution time
 inline uint64_t
-compute_wce(const WasmBlkInf* blk, int level, bool* recursion_limit_reached)
+compute_wce(
+    const WasmBlkInf* blk,
+    int level,
+    int max_level,
+    bool* recursion_limit_reached)
 {
-    if (level > 16)
+    if (level > max_level)
     {
         *recursion_limit_reached = true;
         return 0;
@@ -233,8 +237,8 @@ compute_wce(const WasmBlkInf* blk, int level, bool* recursion_limit_reached)
 
     if (blk->children.size() > 0)
         for (auto const& child : blk->children)
-            worst_case_execution +=
-                compute_wce(child, level + 1, recursion_limit_reached);
+            worst_case_execution += compute_wce(
+                child, level + 1, max_level, recursion_limit_reached);
 
     if (parent == 0 ||
         parent->iteration_bound ==
@@ -788,12 +792,17 @@ check_guard(
     }
 
     bool recursion_limit_reached = false;
-    uint64_t wce = compute_wce(&(*root), 0, &recursion_limit_reached);
+    int max_level = 16;
+    if (rulesVersion & hook_api::GuardRuleDepth32)
+        max_level = 32;
+    uint64_t wce =
+        compute_wce(&(*root), 0, max_level, &recursion_limit_reached);
     if (recursion_limit_reached)
     {
         GUARDLOG(hook::log::NESTING_LIMIT)
             << "GuardCheck "
-            << "Maximum allowable depth of blocks reached (16 levels). Flatten "
+            << "Maximum allowable depth of blocks reached (" << max_level
+            << " levels). Flatten "
                "your loops and conditions!.\n";
         return {};
     }

include/xrpl/hook/Macro.h

@@ -89,58 +89,69 @@
 
 #define WASM_VAL_TYPE(T, b) CAT2(TYP_, T)
 
-#define DECLARE_HOOK_FUNCTION(R, F, ...)                         \
-    R F(hook::HookContext& hookCtx,                              \
-        WasmEdge_CallingFrameContext const& frameCtx __VA_OPT__( \
-            COMMA __VA_ARGS__));                                 \
-    extern WasmEdge_Result WasmFunction##F(                      \
-        void* data_ptr,                                          \
-        const WasmEdge_CallingFrameContext* frameCtx,            \
-        const WasmEdge_Value* in,                                \
-        WasmEdge_Value* out);                                    \
-    extern WasmEdge_ValType WasmFunctionParams##F[];             \
-    extern WasmEdge_ValType WasmFunctionResult##F[];             \
-    extern WasmEdge_FunctionTypeContext* WasmFunctionType##F;    \
+#define UNSIGNED_TYPE(T) std::make_unsigned_t<T>
+
+#define DECLARE_HOOK_FUNCTION(R, F, ...)                          \
+    std::variant<UNSIGNED_TYPE(R), hook_api::hook_return_code> F( \
+        hook::HookContext& hookCtx,                               \
+        WasmEdge_CallingFrameContext const& frameCtx __VA_OPT__(  \
+            COMMA __VA_ARGS__));                                  \
+    extern WasmEdge_Result WasmFunction##F(                       \
+        void* data_ptr,                                           \
+        const WasmEdge_CallingFrameContext* frameCtx,             \
+        const WasmEdge_Value* in,                                 \
+        WasmEdge_Value* out);                                     \
+    extern WasmEdge_ValType WasmFunctionParams##F[];              \
+    extern WasmEdge_ValType WasmFunctionResult##F[];              \
+    extern WasmEdge_FunctionTypeContext* WasmFunctionType##F;     \
     extern WasmEdge_String WasmFunctionName##F;
 
-#define DEFINE_HOOK_FUNCTION(R, F, ...)                             \
-    WasmEdge_Result hook_api::WasmFunction##F(                      \
-        void* data_ptr,                                             \
-        const WasmEdge_CallingFrameContext* frameCtx,               \
-        const WasmEdge_Value* in,                                   \
-        WasmEdge_Value* out)                                        \
-    {                                                               \
-        __VA_OPT__(int _stack = 0;)                                 \
-        __VA_OPT__(FOR_VARS(VAR_ASSIGN, 2, __VA_ARGS__);)           \
-        hook::HookContext* hookCtx =                                \
-            reinterpret_cast<hook::HookContext*>(data_ptr);         \
-        R return_code = hook_api::F(                                \
-            *hookCtx,                                               \
-            *const_cast<WasmEdge_CallingFrameContext*>(frameCtx)    \
-                __VA_OPT__(COMMA STRIP_TYPES(__VA_ARGS__)));        \
-        if (return_code == RC_ROLLBACK || return_code == RC_ACCEPT) \
-            return WasmEdge_Result_Terminate;                       \
-        out[0] = RET_ASSIGN(R, return_code);                        \
-        return WasmEdge_Result_Success;                             \
-    };                                                              \
-    WasmEdge_ValType hook_api::WasmFunctionParams##F[] = {          \
-        __VA_OPT__(FOR_VARS(WASM_VAL_TYPE, 0, __VA_ARGS__))};       \
-    WasmEdge_ValType hook_api::WasmFunctionResult##F[1] = {         \
-        WASM_VAL_TYPE(R, dummy)};                                   \
-    WasmEdge_FunctionTypeContext* hook_api::WasmFunctionType##F =   \
-        WasmEdge_FunctionTypeCreate(                                \
-            WasmFunctionParams##F,                                  \
-            VA_NARGS(NULL __VA_OPT__(, __VA_ARGS__)),               \
-            WasmFunctionResult##F,                                  \
-            1);                                                     \
-    WasmEdge_String hook_api::WasmFunctionName##F =                 \
-        WasmEdge_StringCreateByCString(#F);                         \
-    R hook_api::F(                                                  \
-        hook::HookContext& hookCtx,                                 \
-        WasmEdge_CallingFrameContext const& frameCtx __VA_OPT__(    \
+#define DEFINE_HOOK_FUNCTION(R, F, ...)                                        \
+    WasmEdge_Result hook_api::WasmFunction##F(                                 \
+        void* data_ptr,                                                        \
+        const WasmEdge_CallingFrameContext* frameCtx,                          \
+        const WasmEdge_Value* in,                                              \
+        WasmEdge_Value* out)                                                   \
+    {                                                                          \
+        __VA_OPT__(int _stack = 0;)                                            \
+        __VA_OPT__(FOR_VARS(VAR_ASSIGN, 2, __VA_ARGS__);)                      \
+        hook::HookContext* hookCtx =                                           \
+            reinterpret_cast<hook::HookContext*>(data_ptr);                    \
+        auto const& return_code = hook_api::F(                                 \
+            *hookCtx,                                                          \
+            *const_cast<WasmEdge_CallingFrameContext*>(frameCtx)               \
+                __VA_OPT__(COMMA STRIP_TYPES(__VA_ARGS__)));                   \
+        if (std::holds_alternative<hook_api::hook_return_code>(return_code) && \
+            (std::get<hook_api::hook_return_code>(return_code) ==              \
+                 RC_ROLLBACK ||                                                \
+             std::get<hook_api::hook_return_code>(return_code) == RC_ACCEPT))  \
+            return WasmEdge_Result_Terminate;                                  \
+        out[0] = RET_ASSIGN(                                                   \
+            R,                                                                 \
+            std::holds_alternative<UNSIGNED_TYPE(R)>(return_code)              \
+                ? std::get<UNSIGNED_TYPE(R)>(return_code)                      \
+                : R(std::get<hook_api::hook_return_code>(return_code)));       \
+        return WasmEdge_Result_Success;                                        \
+    };                                                                         \
+    WasmEdge_ValType hook_api::WasmFunctionParams##F[] = {                     \
+        __VA_OPT__(FOR_VARS(WASM_VAL_TYPE, 0, __VA_ARGS__))};                  \
+    WasmEdge_ValType hook_api::WasmFunctionResult##F[1] = {                    \
+        WASM_VAL_TYPE(R, dummy)};                                              \
+    WasmEdge_FunctionTypeContext* hook_api::WasmFunctionType##F =              \
+        WasmEdge_FunctionTypeCreate(                                           \
+            WasmFunctionParams##F,                                             \
+            VA_NARGS(NULL __VA_OPT__(, __VA_ARGS__)),                          \
+            WasmFunctionResult##F,                                             \
+            1);                                                                \
+    WasmEdge_String hook_api::WasmFunctionName##F =                            \
+        WasmEdge_StringCreateByCString(#F);                                    \
+    std::variant<UNSIGNED_TYPE(R), hook_api::hook_return_code> hook_api::F(    \
+        hook::HookContext& hookCtx,                                            \
+        WasmEdge_CallingFrameContext const& frameCtx __VA_OPT__(               \
             COMMA __VA_ARGS__))
 
 #define HOOK_SETUP()                                                 \
+    using enum hook_api::hook_return_code;                           \
     try                                                              \
     {                                                                \
         [[maybe_unused]] ApplyContext& applyCtx = hookCtx.applyCtx;  \
@@ -203,7 +214,7 @@
     host_memory_ptr,                  \
     guest_memory_length)              \
     {                                 \
-        int64_t bytes_written = 0;    \
+        uint64_t bytes_written = 0;   \
         WRITE_WASM_MEMORY(            \
             bytes_written,            \
             guest_dst_ptr,            \
@@ -272,7 +283,7 @@
             data_ptr < (data_ptr_in))                                    \
             return INTERNAL_ERROR;                                       \
         if (data_len == 0)                                               \
-            return 0;                                                    \
+            return 0ULL;                                                 \
         if ((write_ptr_in) == 0)                                         \
             return data_as_int64(data_ptr, data_len);                    \
         if (data_len > (write_len_in))                                   \

include/xrpl/hook/Misc.h

@@ -1,523 +0,0 @@
-
-#ifndef HOOKMISC_INCLUDED
-#define HOOKMISC_INCLUDED 1
-#include <xrpl/basics/base_uint.h>
-namespace ripple {
-// RH TODO: there's definitely a mucher nicer way to do this, but it involves
-// modifying the base_uint class and we don't want to do that yet.
-
-static const std::array<ripple::uint256, 256> UINT256_BIT = {
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000001"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000002"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000004"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000008"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000010"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000020"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000040"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000080"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000100"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000200"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000400"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000000800"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000001000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000002000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000004000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000008000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000010000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000020000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000040000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000080000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000100000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000200000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000400000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000000800000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000001000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000002000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000004000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000008000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000010000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000020000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000040000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000080000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000100000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000200000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000400000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000000800000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000001000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000002000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000004000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000008000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000010000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000020000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000040000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000080000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000100000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000200000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000400000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000000800000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000001000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000002000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000004000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000008000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000010000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000020000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000040000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000080000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000100000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000200000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000400000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000000800000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000001000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000002000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000004000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000008000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000010000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000020000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000040000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000080000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000100000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000200000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000400000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000000800000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000001000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000002000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000004000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000008000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000010000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000020000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000040000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000080000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000100000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000200000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000400000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000000800000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000001000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000002000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000004000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000008000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000010000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000020000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000040000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000080000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000100000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000200000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000400000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000000800000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000001000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000002000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000004000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000008000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000010000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000020000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000040000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000080000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000100000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000200000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000400000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000000800000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000001000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000002000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000004000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000008000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000010000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000020000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000040000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000080000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000100000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000200000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000400000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000000800000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000001000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000002000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000004000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000008000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000010000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000020000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000040000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000080000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000100000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000200000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000400000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000000800000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000001000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000002000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000004000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000008000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000010000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000020000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000040000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000080000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000100000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000200000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000400000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000000800000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000001000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000002000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000004000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000008000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000010000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000020000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000040000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000080000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000100000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000200000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000400000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000000800000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000001000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000002000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000004000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000008000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000010000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000020000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000040000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000080000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000100000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000200000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000400000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000000800000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000001000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000002000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000004000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000008000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000010000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000020000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000040000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000080000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000100000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000200000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000400000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000000800000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000001000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000002000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000004000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000008000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000010000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000020000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000040000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000080000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000100000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000200000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000400000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000000800000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000001000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000002000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000004000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000008000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000010000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000020000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000040000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000080000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000100000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000200000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000400000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000000800000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000001000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000002000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000004000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000008000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000010000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000020000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000040000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000080000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000100000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000200000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000400000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000000800000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000001000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000002000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000004000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000008000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000010000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000020000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000040000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000080000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000100000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000200000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000400000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000000800000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000001000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000002000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000004000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000008000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000010000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000020000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000040000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000080000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000100000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000200000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000400000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0000800000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0001000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0002000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0004000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0008000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0010000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0020000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0040000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0080000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0100000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0200000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0400000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "0800000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "1000000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "2000000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "4000000000000000000000000000000000000000000000000000000000000000"),
-    ripple::uint256(
-        "8000000000000000000000000000000000000000000000000000000000000000")};
-}  // namespace ripple
-#endif

include/xrpl/hook/hook_api.macro

@@ -367,3 +367,8 @@ HOOK_API_DEFINITION(
 HOOK_API_DEFINITION(
   int64_t, xpop_slot, (uint32_t, uint32_t),
   featureHooksUpdate1)
+
+// int64_t prepare(uint32_t write_ptr, uint32_t write_len, uint32_t read_ptr, uint32_t read_len);
+HOOK_API_DEFINITION(
+  int64_t, prepare, (uint32_t, uint32_t, uint32_t, uint32_t),
+  featureHooksUpdate2)

include/xrpl/json/detail/json_assert.h

@@ -20,6 +20,8 @@
 #ifndef RIPPLE_JSON_JSON_ASSERT_H_INCLUDED
 #define RIPPLE_JSON_JSON_ASSERT_H_INCLUDED
 
+#include <xrpl/beast/utility/instrumentation.h>
+
 #include <xrpl/json/json_errors.h>
 
 #define JSON_ASSERT_MESSAGE(condition, message) \

include/xrpl/json/json_value.h

@@ -24,6 +24,7 @@
 #include <cstring>
 #include <map>
 #include <string>
+#include <string_view>
 #include <vector>
 
 /** \brief JSON (JavaScript Object Notation).
@@ -76,6 +77,12 @@ public:
         return str_;
     }
 
+    constexpr
+    operator std::string_view() const
+    {
+        return std::string_view(str_);
+    }
+
 private:
     const char* str_;
 };
@@ -214,7 +221,13 @@ public:
     Value(Int value);
     Value(UInt value);
     Value(double value);
-    Value(const char* value);
+    Value(std::string_view value);
+    Value(std::string const& value) : Value(std::string_view(value))
+    {
+    }
+    Value(char const* value) : Value(std::string_view(value))
+    {
+    }
     /** \brief Constructs a value from a static string.
 
      * Like other value string constructor but do not duplicate the string for
@@ -227,7 +240,6 @@ public:
      * \endcode
      */
     Value(const StaticString& value);
-    Value(std::string const& value);
     Value(bool value);
     Value(const Value& other);
     ~Value();
@@ -336,19 +348,13 @@ public:
     /// Access an object value by name, create a null member if it does not
     /// exist.
     Value&
-    operator[](const char* key);
+    operator[](std::string_view key);
+
     /// Access an object value by name, returns null if there is no member with
     /// that name.
-    const Value&
-    operator[](const char* key) const;
-    /// Access an object value by name, create a null member if it does not
-    /// exist.
-    Value&
-    operator[](std::string const& key);
-    /// Access an object value by name, returns null if there is no member with
-    /// that name.
-    const Value&
-    operator[](std::string const& key) const;
+    Value const&
+    operator[](std::string_view key) const;
+
     /** \brief Access an object value by name, create a null member if it does
      not exist.
 

include/xrpl/protocol/Feature.h

@@ -80,7 +80,7 @@ namespace detail {
 // Feature.cpp. Because it's only used to reserve storage, and determine how
 // large to make the FeatureBitset, it MAY be larger. It MUST NOT be less than
 // the actual number of amendments. A LogicError on startup will verify this.
-static constexpr std::size_t numFeatures = 111;
+static constexpr std::size_t numFeatures = 114;
 
 /** Amendments that this server supports and the default voting behavior.
    Whether they are enabled depends on the Rules defined in the validated

include/xrpl/protocol/IOUAmount.h

@@ -97,6 +97,12 @@ public:
 
     static IOUAmount
     minPositiveAmount();
+
+    friend std::ostream&
+    operator<<(std::ostream& os, IOUAmount const& x)
+    {
+        return os << to_string(x);
+    }
 };
 
 inline IOUAmount::IOUAmount(beast::Zero)

include/xrpl/protocol/Import.h

@@ -20,8 +20,8 @@
 #ifndef RIPPLE_PROTOCOL_IMPORT_H_INCLUDED
 #define RIPPLE_PROTOCOL_IMPORT_H_INCLUDED
 
-// #include <ripple/basics/Log.h>
 #include <xrpld/app/misc/Manifest.h>
+#include <xrpl/basics/Log.h>
 #include <xrpl/basics/StringUtilities.h>
 #include <xrpl/basics/base64.h>
 #include <xrpl/json/json_reader.h>

include/xrpl/protocol/Indexes.h

@@ -372,6 +372,10 @@ permissionedDomain(AccountID const& account, std::uint32_t seq) noexcept;
 
 Keylet
 permissionedDomain(uint256 const& domainID) noexcept;
+
+Keylet
+manifest(PublicKey const& pk) noexcept;
+
 }  // namespace keylet
 
 // Everything below is deprecated and should be removed in favor of keylets:

include/xrpl/protocol/LedgerFormats.h

@@ -147,8 +147,9 @@ enum LedgerSpecificFlags {
         0x40000000,               // True, has minted tokens in the past
     lsfDisallowIncomingRemit =    // True, no remits allowed to this account
         0x80000000,
-    lsfAllowTrustLineClawback = 
-        0x00001000,               // True, enable clawback 
+    // 0x0004000 is available
+    lsfAllowTrustLineClawback =
+        0x00001000,               // True, enable clawback
 
     // ltOFFER
     lsfPassive = 0x00010000,
@@ -163,10 +164,10 @@ enum LedgerSpecificFlags {
     lsfHighNoRipple = 0x00200000,
     lsfLowFreeze = 0x00400000,      // True, low side has set freeze flag
     lsfHighFreeze = 0x00800000,     // True, high side has set freeze flag
-    lsfAMMNode = 0x01000000,        // True, trust line to AMM. Used by client
-                                    // apps to identify payments via AMM.
     lsfLowDeepFreeze = 0x02000000,  // True, low side has set deep freeze flag
     lsfHighDeepFreeze = 0x04000000, // True, high side has set deep freeze flag
+    lsfAMMNode = 0x01000000,     // True, trust line to AMM. Used by client
+                                 // apps to identify payments via AMM.
 
     // ltSIGNER_LIST
     lsfOneOwnerCount = 0x00010000,  // True, uses only one OwnerCount

include/xrpl/protocol/PublicKey.h

@@ -24,6 +24,7 @@
 #include <xrpl/protocol/KeyType.h>
 #include <xrpl/protocol/STExchange.h>
 #include <xrpl/protocol/UintTypes.h>
+#include <xrpl/protocol/detail/KeyBase.h>
 #include <xrpl/protocol/json_get_or_throw.h>
 #include <xrpl/protocol/tokens.h>
 
@@ -36,6 +37,26 @@
 
 namespace ripple {
 
+/** Returns the type of public key.
+
+    @return std::nullopt If the public key does not
+            represent a known type.
+*/
+[[nodiscard]] inline std::optional<KeyType>
+publicKeyType(Slice const& slice)
+{
+    if (slice.size() == 33)
+    {
+        if (slice[0] == 0xED)
+            return KeyType::ed25519;
+
+        if (slice[0] == 0x02 || slice[0] == 0x03)
+            return KeyType::secp256k1;
+    }
+
+    return std::nullopt;
+}
+
 /** A public key.
 
     Public keys are used in the public-key cryptography
@@ -58,77 +79,47 @@ namespace ripple {
     prefix constant 0xED, followed by 32 bytes of
     public key data.
 */
-class PublicKey
+class PublicKey : public detail::KeyBase<PublicKey, 33>
 {
-protected:
-    // All the constructed public keys are valid, non-empty and contain 33
-    // bytes of data.
-    static constexpr std::size_t size_ = 33;
-    std::uint8_t buf_[size_];  // should be large enough
-
-public:
-    using const_iterator = std::uint8_t const*;
-
 public:
     PublicKey() = delete;
 
-    PublicKey(PublicKey const& other);
+    PublicKey(PublicKey const&) = default;
     PublicKey&
-    operator=(PublicKey const& other);
+    operator=(PublicKey const&) = default;
 
-    /** Create a public key.
-
-        Preconditions:
-            publicKeyType(slice) != std::nullopt
-    */
-    explicit PublicKey(Slice const& slice);
-
-    std::uint8_t const*
-    data() const noexcept
+    explicit PublicKey(Slice const& slice) noexcept
     {
-        return buf_;
+        if (slice.size() < buf_.size())
+            LogicError("PublicKey::PublicKey: undersized buffer");
+
+        if (!publicKeyType(slice))
+            LogicError("PublicKey::PublicKey: invalid type");
+
+        std::copy_n(slice.data(), buf_.size(), buf_.data());
     }
 
-    std::size_t
-    size() const noexcept
+    explicit PublicKey(value_t const& data) noexcept
+        : PublicKey(makeSlice(data))
     {
-        return size_;
     }
 
-    const_iterator
-    begin() const noexcept
-    {
-        return buf_;
-    }
-
-    const_iterator
-    cbegin() const noexcept
-    {
-        return buf_;
-    }
-
-    const_iterator
-    end() const noexcept
-    {
-        return buf_ + size_;
-    }
-
-    const_iterator
-    cend() const noexcept
-    {
-        return buf_ + size_;
-    }
-
-    Slice
+    [[nodiscard]] Slice
     slice() const noexcept
     {
-        return {buf_, size_};
+        return {buf_.data(), buf_.size()};
     }
 
     operator Slice() const noexcept
     {
         return slice();
     }
+
+    [[nodiscard]] auto
+    operator<=>(PublicKey const& rhs) const
+    {
+        return buf_ <=> rhs.buf_;
+    }
 };
 
 /** Print the public key to a stream.
@@ -136,22 +127,6 @@ public:
 std::ostream&
 operator<<(std::ostream& os, PublicKey const& pk);
 
-inline bool
-operator==(PublicKey const& lhs, PublicKey const& rhs)
-{
-    return std::memcmp(lhs.data(), rhs.data(), rhs.size()) == 0;
-}
-
-inline bool
-operator<(PublicKey const& lhs, PublicKey const& rhs)
-{
-    return std::lexicographical_compare(
-        lhs.data(),
-        lhs.data() + lhs.size(),
-        rhs.data(),
-        rhs.data() + rhs.size());
-}
-
 template <class Hasher>
 void
 hash_append(Hasher& h, PublicKey const& pk)
@@ -221,22 +196,6 @@ enum class ECDSACanonicality { canonical, fullyCanonical };
 std::optional<ECDSACanonicality>
 ecdsaCanonicality(Slice const& sig);
 
-/** Returns the type of public key.
-
-    @return std::nullopt If the public key does not
-            represent a known type.
-*/
-/** @{ */
-[[nodiscard]] std::optional<KeyType>
-publicKeyType(Slice const& slice);
-
-[[nodiscard]] inline std::optional<KeyType>
-publicKeyType(PublicKey const& publicKey)
-{
-    return publicKeyType(publicKey.slice());
-}
-/** @} */
-
 /** Verify a secp256k1 signature on the digest of a message. */
 [[nodiscard]] bool
 verifyDigest(

include/xrpl/protocol/RippleLedgerHash.h

@@ -1,31 +0,0 @@
-//------------------------------------------------------------------------------
-/*
-    This file is part of rippled: https://github.com/ripple/rippled
-    Copyright (c) 2012, 2013 Ripple Labs Inc.
-
-    Permission to use, copy, modify, and/or distribute this software for any
-    purpose  with  or without fee is hereby granted, provided that the above
-    copyright notice and this permission notice appear in all copies.
-
-    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
-    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
-    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-//==============================================================================
-
-#ifndef RIPPLE_PROTOCOL_RIPPLELEDGERHASH_H_INCLUDED
-#define RIPPLE_PROTOCOL_RIPPLELEDGERHASH_H_INCLUDED
-
-#include <xrpl/basics/base_uint.h>
-
-namespace ripple {
-
-using LedgerHash = uint256;
-
-}
-
-#endif

include/xrpl/protocol/Rules.h

@@ -28,6 +28,9 @@
 
 namespace ripple {
 
+bool
+isFeatureEnabled(uint256 const& feature);
+
 class DigestAwareReadView;
 
 /** Rules controlling protocol behavior. */

include/xrpl/protocol/SecretKey.h

@@ -25,90 +25,39 @@
 #include <xrpl/protocol/KeyType.h>
 #include <xrpl/protocol/PublicKey.h>
 #include <xrpl/protocol/Seed.h>
+#include <xrpl/protocol/detail/KeyBase.h>
 #include <xrpl/protocol/tokens.h>
 #include <array>
-#include <cstring>
 #include <string>
 
 namespace ripple {
 
 /** A secret key. */
-class SecretKey
+class SecretKey : public detail::KeyBase<SecretKey, 32>
 {
-private:
-    std::uint8_t buf_[32];
-
 public:
-    using const_iterator = std::uint8_t const*;
-
     SecretKey() = delete;
+
     SecretKey(SecretKey const&) = default;
     SecretKey&
     operator=(SecretKey const&) = default;
 
+    /** Destroy the secret key. This will try to securely erase the buffer. */
     ~SecretKey();
 
-    SecretKey(std::array<std::uint8_t, 32> const& data);
-    SecretKey(Slice const& slice);
-
-    std::uint8_t const*
-    data() const
+    SecretKey(Slice const& slice)
     {
-        return buf_;
+        if (slice.size() != buf_.size())
+            LogicError("SecretKey::SecretKey: invalid size");
+
+        std::copy_n(slice.data(), buf_.size(), buf_.data());
     }
 
-    std::size_t
-    size() const
+    explicit SecretKey(span_t const& data) noexcept : KeyBase(data)
     {
-        return sizeof(buf_);
-    }
-
-    /** Convert the secret key to a hexadecimal string.
-
-        @note The operator<< function is deliberately omitted
-        to avoid accidental exposure of secret key material.
-    */
-    std::string
-    to_string() const;
-
-    const_iterator
-    begin() const noexcept
-    {
-        return buf_;
-    }
-
-    const_iterator
-    cbegin() const noexcept
-    {
-        return buf_;
-    }
-
-    const_iterator
-    end() const noexcept
-    {
-        return buf_ + sizeof(buf_);
-    }
-
-    const_iterator
-    cend() const noexcept
-    {
-        return buf_ + sizeof(buf_);
     }
 };
 
-inline bool
-operator==(SecretKey const& lhs, SecretKey const& rhs)
-{
-    return lhs.size() == rhs.size() &&
-        std::memcmp(lhs.data(), rhs.data(), rhs.size()) == 0;
-}
-
-inline bool
-operator!=(SecretKey const& lhs, SecretKey const& rhs)
-{
-    return !(lhs == rhs);
-}
-
 //------------------------------------------------------------------------------
 
 /** Parse a secret key */

include/xrpl/protocol/Seed.h

@@ -22,72 +22,37 @@
 
 #include <xrpl/basics/Slice.h>
 #include <xrpl/basics/base_uint.h>
+#include <xrpl/protocol/detail/KeyBase.h>
 #include <xrpl/protocol/tokens.h>
+
+#include <algorithm>
 #include <array>
 #include <optional>
 
 namespace ripple {
 
 /** Seeds are used to generate deterministic secret keys. */
-class Seed
+class Seed : public detail::KeyBase<Seed, 16>
 {
-private:
-    std::array<uint8_t, 16> buf_;
-
 public:
-    using const_iterator = std::array<uint8_t, 16>::const_iterator;
-
     Seed() = delete;
-
     Seed(Seed const&) = default;
     Seed&
     operator=(Seed const&) = default;
 
-    /** Destroy the seed.
-        The buffer will first be securely erased.
-    */
+    /** Destroy the seed. This will attempt to securely erase the buffer. */
     ~Seed();
 
-    /** Construct a seed */
-    /** @{ */
-    explicit Seed(Slice const& slice);
-    explicit Seed(uint128 const& seed);
-    /** @} */
-
-    std::uint8_t const*
-    data() const
+    explicit Seed(Slice const& slice)
     {
-        return buf_.data();
+        if (slice.size() != buf_.size())
+            LogicError("Seed::Seed: invalid size");
+
+        std::copy_n(slice.data(), buf_.size(), buf_.data());
     }
 
-    std::size_t
-    size() const
+    explicit Seed(span_t seed) noexcept : KeyBase(seed)
     {
-        return buf_.size();
-    }
-
-    const_iterator
-    begin() const noexcept
-    {
-        return buf_.begin();
-    }
-
-    const_iterator
-    cbegin() const noexcept
-    {
-        return buf_.cbegin();
-    }
-
-    const_iterator
-    end() const noexcept
-    {
-        return buf_.end();
-    }
-
-    const_iterator
-    cend() const noexcept
-    {
-        return buf_.cend();
     }
 };
 

include/xrpl/protocol/Serializer.h

@@ -458,18 +458,18 @@ template <std::size_t Bits, class Tag>
 base_uint<Bits, Tag>
 SerialIter::getBitString()
 {
-    auto const n = Bits / 8;
+    auto constexpr N = base_uint<Bits, Tag>::bytes;
 
-    if (remain_ < n)
+    if (remain_ < N)
         Throw<std::runtime_error>("invalid SerialIter getBitString");
 
     auto const x = p_;
 
-    p_ += n;
-    used_ += n;
-    remain_ -= n;
+    p_ += N;
+    used_ += N;
+    remain_ -= N;
 
-    return base_uint<Bits, Tag>::fromVoid(x);
+    return base_uint<Bits, Tag>(std::span<uint8_t const, N>{x, N});
 }
 
 }  // namespace ripple

include/xrpl/protocol/SystemParameters.h

@@ -22,29 +22,26 @@
 
 #include <xrpl/basics/chrono.h>
 #include <xrpl/protocol/XRPAmount.h>
+
 #include <cstdint>
-#include <string>
+#include <string_view>
 
 namespace ripple {
 
 // Various protocol and system specific constant globals.
 
 /* The name of the system. */
-static inline std::string const&
-systemName()
-{
-    static std::string const name = "xahau";
-    return name;
-}
+inline constexpr std::string_view systemName = "xahau";
 
-/** Configure the native currency. */
+/* The currency code for the native currency. */
+inline constexpr std::string_view systemCurrencyCode = "XAH";
 
 /** Number of drops in the genesis account. */
-constexpr XRPAmount INITIAL_XRP{100'000'000'000 * DROPS_PER_XRP};
+inline constexpr XRPAmount INITIAL_XRP{100'000'000'000 * DROPS_PER_XRP};
 
 /** Returns true if the amount does not exceed the initial XRP in existence. */
 inline bool
-isLegalAmount(XRPAmount const& amount)
+isLegalAmount(XRPAmount const& amount) noexcept
 {
     return amount <= INITIAL_XRP;
 }
@@ -52,30 +49,22 @@ isLegalAmount(XRPAmount const& amount)
 /** Returns true if the absolute value of the amount does not exceed the initial
  * XRP in existence. */
 inline bool
-isLegalAmountSigned(XRPAmount const& amount)
+isLegalAmountSigned(XRPAmount const& amount) noexcept
 {
     return amount >= -INITIAL_XRP && amount <= INITIAL_XRP;
 }
 
-/* The currency code for the native currency. */
-static inline std::string const&
-systemCurrencyCode()
-{
-    static std::string const code = "XAH";
-    return code;
-}
-
 /** The XRP ledger network's earliest allowed sequence */
-static constexpr std::uint32_t XRP_LEDGER_EARLIEST_SEQ{1U};
+inline constexpr std::uint32_t XRP_LEDGER_EARLIEST_SEQ{1U};
 
 /** The minimum amount of support an amendment should have.
 
     @note This value is used by legacy code and will become obsolete
           once the fixAmendmentMajorityCalc amendment activates.
 */
-constexpr std::ratio<204, 256> preFixAmendmentMajorityCalcThreshold;
+inline constexpr std::ratio<204, 256> preFixAmendmentMajorityCalcThreshold;
 
-constexpr std::ratio<80, 100> postFixAmendmentMajorityCalcThreshold;
+inline constexpr std::ratio<80, 100> postFixAmendmentMajorityCalcThreshold;
 
 /** The minimum amount of time an amendment must hold a majority */
 constexpr std::chrono::seconds const defaultAmendmentMajorityTime =

include/xrpl/protocol/TER.h

@@ -137,6 +137,7 @@ enum TEMcodes : TERUnderlyingType {
     temXCHAIN_BRIDGE_NONDOOR_OWNER,
     temXCHAIN_BRIDGE_BAD_MIN_ACCOUNT_CREATE_AMOUNT,
     temXCHAIN_BRIDGE_BAD_REWARD_AMOUNT,
+    temXCHAIN_TOO_MANY_ATTESTATIONS,  // RESERVED - not used
 
     temHOOK_DATA_TOO_LARGE,
     temEMPTY_DID,
@@ -193,6 +194,8 @@ enum TEFcodes : TERUnderlyingType {
     tefNONDIR_EMIT,
     tefIMPORT_BLACKHOLED,
     tefINVALID_LEDGER_FIX_TYPE,
+    tefPAST_MANIFEST_SEQ,
+    tefREVOKED_MANIFEST,
 };
 
 //------------------------------------------------------------------------------

include/xrpl/protocol/TxFlags.h

@@ -125,14 +125,14 @@ enum TrustSetFlags : uint32_t {
     tfSetFreeze = 0x00100000,
     tfClearFreeze = 0x00200000,
     tfSetDeepFreeze = 0x00400000,
-    tfClearDeepFreeze = 0x00800000,
+    tfClearDeepFreeze = 0x00800000
 };
 constexpr std::uint32_t tfTrustSetMask =
     ~(tfUniversal | tfSetfAuth | tfSetNoRipple | tfClearNoRipple | tfSetFreeze |
       tfClearFreeze | tfSetDeepFreeze | tfClearDeepFreeze);
 
 // EnableAmendment flags:
-enum EnableAmendmentFlags : std::uint32_t {
+enum EnableAmendmentFlags : uint32_t {
     tfGotMajority = 0x00010000,
     tfLostMajority = 0x00020000,
     tfTestSuite = 0x80000000,

include/xrpl/protocol/UintTypes.h

@@ -24,84 +24,163 @@
 #include <xrpl/basics/base_uint.h>
 #include <xrpl/beast/utility/Zero.h>
 #include <xrpl/protocol/AccountID.h>
+#include <xrpl/protocol/SystemParameters.h>
 
 namespace ripple {
-namespace detail {
 
-class CurrencyTag
-{
-public:
-    explicit CurrencyTag() = default;
-};
-
-class DirectoryTag
-{
-public:
-    explicit DirectoryTag() = default;
-};
-
-class NodeIDTag
-{
-public:
-    explicit NodeIDTag() = default;
-};
-
-}  // namespace detail
+using LedgerHash = uint256;
 
 /** Directory is an index into the directory of offer books.
     The last 64 bits of this are the quality. */
-using Directory = base_uint<256, detail::DirectoryTag>;
+using Directory = base_uint<256, struct DirectoryTag>;
 
 /** Currency is a hash representing a specific currency. */
-using Currency = base_uint<160, detail::CurrencyTag>;
+using Currency = base_uint<160, struct CurrencyTag>;
 
 /** NodeID is a 160-bit hash representing one node. */
-using NodeID = base_uint<160, detail::NodeIDTag>;
+using NodeID = base_uint<160, struct NodeIDTag>;
 
-/** MPTID is a 192-bit value representing MPT Issuance ID,
- * which is a concatenation of a 32-bit sequence (big endian)
- * and a 160-bit account */
+/** A Multi-Purpose Token Issuance ID,
+
+    The ID is the a concatenation of a 32-bit sequence number,
+    in big endian, and a 160-bit account.
+
+    @note This type is, unfortunately, untagged because the authors
+          of the original code used a deserialization APIs that did
+          not support tags. It should be fixed.
+ */
 using MPTID = base_uint<192>;
 
+namespace detail {
+
+// A table mapping which characters we are willing to allow in the ASCII
+// representation of a three-letter currency code.
+inline constexpr auto validIsoChars = []() consteval {
+    std::string_view isoCharSet =
+        "abcdefghijklmnopqrstuvwxyz"
+        "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+        "0123456789"
+        "<>(){}[]|?!@#$%^&*";
+
+    std::array<bool, 256> table{};
+
+    for (unsigned char c : isoCharSet)
+        table[c] = true;
+
+    return table;
+}();
+
+// Determines if the given code is composed entirely of letters valid in
+// ISO 4217 codes.
+[[nodiscard]] inline constexpr bool
+isIsoCode(std::string_view code) noexcept
+{
+    return std::all_of(code.begin(), code.end(), [](char c) {
+        return validIsoChars[static_cast<unsigned char>(c)];
+    });
+}
+
+// The location (in bytes) of the 3 digit currency inside a 160-bit value
+inline constexpr std::size_t isoCodeOffset = 12;
+
+// The length of an ISO-4217 like code
+inline constexpr std::size_t isoCodeLength = 3;
+
+inline constexpr Currency isoMaskBits = ~Currency(0xFFFFFF0000000000);
+
+// The special currency identifier for the system currency: all-zero
+inline constexpr Currency xrpCurrency{0x0000000000000000};
+
+// The special currency identifier meaning "no currency"
+inline constexpr Currency noCurrency{0x0000000000000001};
+
+// The system currency identifier in "ISO4217 format" which is reserved.
+// We derive this value dynamically from the system currency code.
+inline constexpr Currency badCurrency = []() consteval {
+    if (systemCurrencyCode.size() != isoCodeLength)
+        throw "Incorrect systemCurrencyCode size (must be 3 digits)";
+
+    std::array<std::uint8_t, Currency::bytes> bytes{};
+
+    for (std::size_t i = 0; i < isoCodeLength; ++i)
+        bytes[isoCodeOffset + i] =
+            static_cast<std::uint8_t>(systemCurrencyCode[i]);
+
+    return Currency(bytes);
+}();
+
+// We take advantage of the fact that an ASCII value in the [a-z] range
+// transforms into the equivalent character in the [A-Z] range when you
+// AND it with 0xDF, so we can compare against all possible variants of
+// "XAH" in one go:
+inline constexpr Currency badCurrencyCodeMask{0xDFDFDF0000000000};
+
+}  // namespace detail
+
 /** XRP currency. */
-Currency const&
-xrpCurrency();
+[[nodiscard]] constexpr Currency const&
+xrpCurrency() noexcept
+{
+    return detail::xrpCurrency;
+}
+
+[[nodiscard]] constexpr bool
+isXRP(Currency const& c) noexcept
+{
+    return c == detail::xrpCurrency;
+}
 
 /** A placeholder for empty currencies. */
-Currency const&
-noCurrency();
+[[nodiscard]] constexpr Currency const&
+noCurrency() noexcept
+{
+    return detail::noCurrency;
+}
 
 /** We deliberately disallow the currency that looks like "XAH" because too
     many people were using it instead of the correct XAH currency. */
-Currency const&
-badCurrency();
-
-inline bool
-isXRP(Currency const& c)
+[[nodiscard]] constexpr Currency const&
+badCurrency() noexcept
 {
-    return c == beast::zero;
+    return detail::badCurrency;
 }
 
-inline bool
-isBadCurrency(Currency const& c)
+[[nodiscard]] constexpr bool
+isBadCurrency(Currency const& c) noexcept
 {
-    static const std::set<Currency> badCurrencies{
-        Currency(0x7861680000000000),  // xah
-        Currency(0x7861480000000000),  // xaH
-        Currency(0x7841680000000000),  // xAh
-        Currency(0x7841480000000000),  // xAH
-        Currency(0x5861680000000000),  // Xah
-        Currency(0x5861480000000000),  // XaH
-        Currency(0x5841680000000000),  // XAh
-        Currency(0x5841480000000000)   // XAH
-    };
-
-    return badCurrencies.find(c) != badCurrencies.end();
+    // We take advantage of the fact that an ASCII value in the [a-z] range
+    // transforms into the equivalent character in the [A-Z] range when you
+    // AND it with 0xDF, so we can compare against all possible variants of
+    // the bad currency code in one go:
+    return (c & detail::badCurrencyCodeMask) == badCurrency();
 }
 
-/** Returns "", "XAH", or three letter ISO code. */
-std::string
-to_string(Currency const& c);
+/** Returns "", "XAH", three letter ISO code or the hex representation. */
+[[nodiscard]] inline std::string
+to_string(Currency const& currency)
+{
+    if (currency == xrpCurrency())
+        return std::string{systemCurrencyCode};
+
+    if (currency == noCurrency())
+        return "1";
+
+    if ((currency & detail::isoMaskBits) == beast::zero)
+    {
+        std::string_view const iso(
+            reinterpret_cast<char const*>(currency.data()) +
+                detail::isoCodeOffset,
+            detail::isoCodeLength);
+
+        // Specifying the system currency code using ISO-style representation
+        // is not allowed. Note that the check is case-sensitive; yet another
+        // instance of legacy code smell.
+        if (detail::isIsoCode(iso) && iso != systemCurrencyCode)
+            return std::string{iso};
+    }
+
+    return strHex(currency);
+}
 
 /** Tries to convert a string to a Currency, returns true on success.
 
@@ -110,8 +189,29 @@ to_string(Currency const& c);
           will require very careful checking everywhere and may mean having
           to rewrite some unit test code.
 */
-bool
-to_currency(Currency&, std::string const&);
+[[nodiscard]] constexpr bool
+to_currency(Currency& currency, std::string_view code) noexcept
+{
+    if (code.empty() || code == systemCurrencyCode)
+    {
+        currency = xrpCurrency();
+        return true;
+    }
+
+    // Handle ISO-4217-like 3-digit character codes.
+    if (code.size() != detail::isoCodeLength)
+        return currency.parseHex(code);
+
+    if (!detail::isIsoCode(code))
+        return false;
+
+    currency = beast::zero;
+
+    std::copy_n(
+        code.data(), code.size(), currency.begin() + detail::isoCodeOffset);
+
+    return true;
+}
 
 /** Tries to convert a string to a Currency, returns noCurrency() on failure.
 
@@ -119,8 +219,14 @@ to_currency(Currency&, std::string const&);
           unfortunate; changing this will require very careful checking
           everywhere and may mean having to rewrite some unit test code.
 */
-Currency
-to_currency(std::string const&);
+[[nodiscard]] constexpr Currency
+to_currency(std::string_view code) noexcept
+{
+    if (Currency currency; to_currency(currency, code))
+        return currency;
+
+    return noCurrency();
+}
 
 inline std::ostream&
 operator<<(std::ostream& os, Currency const& x)

include/xrpl/protocol/detail/KeyBase.h

@@ -0,0 +1,112 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of xahaud: https://github.com/xahau/xahaud
+    Copyright (c) 2026, the Xahaud developers.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef XAHAU_PROTOCOL_KEYBASE_H_INCLUDED
+#define XAHAU_PROTOCOL_KEYBASE_H_INCLUDED
+
+#include <algorithm>
+#include <cstdint>
+
+namespace ripple {
+namespace detail {
+
+/** Common base for fixed-size key and seed types.
+
+    This CRTP base provides storage, accessors, and equality comparison
+    for types like seeds and secret/public keys, whichwrap a fixed-size
+    byte array. The Derived parameter ensures that unrelated types with
+    the same size do not implicitly interoperate with one another.
+
+    Equality comparison is provided automatically. Derived classes that
+    want to can opt in to ordering by declaring operator<=> as a
+    hidden friend.
+
+    @tparam Derived The concrete type inheriting from this base (CRTP).
+    @tparam N       The size of the underlying byte array.
+ */
+template <class Derived, std::size_t N>
+class KeyBase
+{
+public:
+    /** The type we use to store the data. */
+    using value_t = std::array<std::uint8_t, N>;
+
+    /** The span type corresponding to the type we use to store the data. */
+    using span_t = std::span<std::uint8_t, N>;
+
+protected:
+    value_t buf_;
+
+    KeyBase() noexcept = default;
+
+    explicit KeyBase(span_t data) noexcept
+    {
+        std::copy_n(data.data(), N, buf_.data());
+    }
+
+public:
+    [[nodiscard]] std::uint8_t const*
+    data() const
+    {
+        return buf_.data();
+    }
+
+    [[nodiscard]] std::size_t
+    size() const
+    {
+        return buf_.size();
+    }
+
+    [[nodiscard]] auto
+    begin() const noexcept
+    {
+        return buf_.begin();
+    }
+
+    [[nodiscard]] auto
+    cbegin() const noexcept
+    {
+        return buf_.cbegin();
+    }
+
+    [[nodiscard]] auto
+    end() const noexcept
+    {
+        return buf_.end();
+    }
+
+    [[nodiscard]] auto
+    cend() const noexcept
+    {
+        return buf_.cend();
+    }
+
+    [[nodiscard]] friend bool
+    operator==(Derived const& lhs, Derived const& rhs)
+    {
+        // This is not a constant time comparison. This is probably OK
+        // for the xahaud codebase.
+        return lhs.buf_ == rhs.buf_;
+    }
+};
+
+}  // namespace detail
+}  // namespace ripple
+
+#endif

include/xrpl/protocol/detail/features.macro

@@ -24,11 +24,14 @@
 #error "undefined macro: XRPL_FIX"
 #endif
 
+// clang-format off
+
 // Add new amendments to the top of this list.
 // Keep it sorted in reverse chronological order.
 // If you add an amendment here, then do not forget to increment `numFeatures`
 // in include/xrpl/protocol/Feature.h.
 
+XRPL_FIX    (AMMClawbackRounding,        Supported::no,  VoteBehavior::DefaultNo)
 XRPL_FEATURE(HookAPISerializedType240,   Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(PermissionedDomains,        Supported::no,  VoteBehavior::DefaultNo)
 XRPL_FEATURE(DynamicNFT,                 Supported::no,  VoteBehavior::DefaultNo)
@@ -51,16 +54,18 @@ XRPL_FEATURE(DID,                        Supported::no,  VoteBehavior::DefaultNo
 XRPL_FIX    (DisallowIncomingV1,         Supported::yes, VoteBehavior::DefaultYes)
 XRPL_FEATURE(XChainBridge,               Supported::no,  VoteBehavior::DefaultNo)
 XRPL_FEATURE(AMM,                        Supported::yes, VoteBehavior::DefaultNo)
-XRPL_FIX    (HookAPI20251128,            Supported::yes, VoteBehavior::DefaultYes)
-XRPL_FIX    (CronStacking,               Supported::yes, VoteBehavior::DefaultYes)
-XRPL_FEATURE(ExtendedHookState,          Supported::yes, VoteBehavior::DefaultNo)
-XRPL_FEATURE(Cron,                       Supported::yes, VoteBehavior::DefaultNo)
-XRPL_FIX    (InvalidTxFlags,             Supported::yes, VoteBehavior::DefaultYes)
-XRPL_FEATURE(IOUIssuerWeakTSH,           Supported::yes, VoteBehavior::DefaultNo)
-XRPL_FEATURE(DeepFreeze,                 Supported::yes, VoteBehavior::DefaultNo)
-XRPL_FEATURE(Clawback,                   Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FIX    (ReducedOffersV1,            Supported::yes, VoteBehavior::DefaultYes)
-XRPL_FIX    (ProvisionalDoubleThreading, Supported::yes, VoteBehavior::DefaultYes)
+XRPL_FEATURE(HooksUpdate2,               Supported::yes, VoteBehavior::DefaultNo);
+XRPL_FEATURE(HookOnV2,                   Supported::yes, VoteBehavior::DefaultNo);
+XRPL_FIX    (HookAPI20251128,            Supported::yes, VoteBehavior::DefaultYes);
+XRPL_FIX    (CronStacking,               Supported::yes, VoteBehavior::DefaultYes);
+XRPL_FEATURE(ExtendedHookState,          Supported::yes, VoteBehavior::DefaultNo);
+XRPL_FIX    (InvalidTxFlags,             Supported::yes, VoteBehavior::DefaultYes);
+XRPL_FEATURE(Cron,                       Supported::yes, VoteBehavior::DefaultNo);
+XRPL_FEATURE(IOUIssuerWeakTSH,           Supported::yes, VoteBehavior::DefaultNo);
+XRPL_FEATURE(DeepFreeze,                 Supported::yes, VoteBehavior::DefaultNo);
+XRPL_FIX    (ProvisionalDoubleThreading, Supported::yes, VoteBehavior::DefaultYes);
+XRPL_FEATURE(Clawback,                   Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FIX    (RewardClaimFlags,           Supported::yes, VoteBehavior::DefaultYes)
 XRPL_FEATURE(HookCanEmit,                Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FIX    (20250131,                   Supported::yes, VoteBehavior::DefaultYes)
@@ -143,3 +148,4 @@ XRPL_FIX    (NFTokenDirV1,          Supported::yes, VoteBehavior::Obsolete)
 XRPL_FEATURE(NonFungibleTokensV1,   Supported::yes, VoteBehavior::Obsolete)
 XRPL_FEATURE(CryptoConditionsSuite, Supported::yes, VoteBehavior::Obsolete)
 
+// clang-format on

include/xrpl/protocol/detail/ledger_entries.macro

@@ -65,7 +65,7 @@ LEDGER_ENTRY_DUPLICATE(ltCRON, 0x0041, Cron, cron, ({
     {sfRepeatCount,          soeREQUIRED},
     {sfOwnerNode,            soeREQUIRED},
     {sfPreviousTxnID,        soeREQUIRED},
-    {sfPreviousTxnLgrSeq,    soeREQUIRED}
+    {sfPreviousTxnLgrSeq,    soeREQUIRED},
 }))
 
 /** A ledger object which describes a check.
@@ -93,7 +93,9 @@ LEDGER_ENTRY(ltCHECK, 0x0043, Check, check, ({
 */
 LEDGER_ENTRY(ltHOOK_DEFINITION, 'D', HookDefinition, hook_definition, ({
     {sfHookHash,             soeREQUIRED},
-    {sfHookOn,               soeREQUIRED},
+    {sfHookOn,               soeOPTIONAL},
+    {sfHookOnIncoming,       soeOPTIONAL},
+    {sfHookOnOutgoing,       soeOPTIONAL},
     {sfHookCanEmit,          soeOPTIONAL},
     {sfHookNamespace,        soeREQUIRED},
     {sfHookParameters,       soeREQUIRED},
@@ -130,6 +132,8 @@ LEDGER_ENTRY(ltHOOK, 'H', Hook, hook, ({
 
 /** The ledger object which records the last (and largest) sequence for a validator list key
   * as used in the Import amendment
+  
+  \sa keylet::import_vlseq
   */
 LEDGER_ENTRY(ltIMPORT_VLSEQ, 0x0049, ImportVLSequence, import_vlseq, ({
     {sfPublicKey,            soeREQUIRED},
@@ -258,6 +262,7 @@ LEDGER_ENTRY(ltACCOUNT_ROOT, 0x0061, AccountRoot, account, ({
     {sfHookStateScale,       soeOPTIONAL},
     {sfCron,                 soeOPTIONAL},
     {sfAMMID,                soeOPTIONAL},
+    {sfManifestID,           soeOPTIONAL},
 }))
 
 /** A ledger object which contains a list of object identifiers.
@@ -392,6 +397,8 @@ LEDGER_ENTRY(ltRIPPLE_STATE, 0x0072, RippleState, state, ({
     {sfHighQualityOut,       soeOPTIONAL},
     {sfLockedBalance,        soeOPTIONAL},
     {sfLockCount,            soeOPTIONAL},
+    {sfHighReward,           soeOPTIONAL},
+    {sfLowReward,            soeOPTIONAL},
 }))
 
 /** The ledger object which lists the network's fee settings.
@@ -586,6 +593,26 @@ LEDGER_ENTRY(ltDID, 0x008D, DID, did, ({
     {sfPreviousTxnLgrSeq,    soeREQUIRED},
 }))
 
+LEDGER_ENTRY(ltMANIFEST, 0x004D, Manifest, manifest_entry, ({
+    {sfAccount,             soeREQUIRED},
+    {sfPublicKey,           soeREQUIRED},
+    {sfSigningPubKey,       soeOPTIONAL}, /* may be absent if the master is revoked */
+    {sfSequence,            soeREQUIRED},
+    /* sfVersion defaults to 0 and is omitted from the signed payload when
+       absent. Storing it unconditionally would change the bytes and break
+       signature verification when the manifest is reconstructed. */
+    {sfVersion,             soeOPTIONAL},
+    {sfDomain,              soeOPTIONAL},
+    /* The signatures are mirrored so the object is a lossless copy of the
+       manifest and can be independently verified, and re-served to peers,
+       by any node reading it (see ManifestCache::applyLedger). */
+    {sfMasterSignature,     soeREQUIRED},
+    {sfSignature,           soeOPTIONAL}, /* absent if the master is revoked */
+    {sfManifestID,          soeOPTIONAL}, /* pointer to the identical other copy on the other key */
+    {sfPreviousTxnID,       soeREQUIRED},
+    {sfPreviousTxnLgrSeq,   soeREQUIRED},
+}))
+
 #undef EXPAND
 #undef LEDGER_ENTRY_DUPLICATE
 

include/xrpl/protocol/detail/sfields.macro

@@ -210,11 +210,14 @@ TYPED_SFIELD(sfOfferID,                  UINT256,   34)
 TYPED_SFIELD(sfEscrowID,                 UINT256,   35)
 TYPED_SFIELD(sfURITokenID,               UINT256,   36)
 TYPED_SFIELD(sfDomainID,                 UINT256,   37)
-TYPED_SFIELD(sfGovernanceFlags,          UINT256,   99)
-TYPED_SFIELD(sfGovernanceMarks,          UINT256,   98)
-TYPED_SFIELD(sfEmittedTxnID,             UINT256,   97)
-TYPED_SFIELD(sfHookCanEmit,              UINT256,   96)
+TYPED_SFIELD(sfManifestID,               UINT256,   91)
+TYPED_SFIELD(sfHookOnOutgoing,           UINT256,   93)
+TYPED_SFIELD(sfHookOnIncoming,           UINT256,   94)
 TYPED_SFIELD(sfCron,                     UINT256,   95)
+TYPED_SFIELD(sfHookCanEmit,              UINT256,   96)
+TYPED_SFIELD(sfEmittedTxnID,             UINT256,   97)
+TYPED_SFIELD(sfGovernanceMarks,          UINT256,   98)
+TYPED_SFIELD(sfGovernanceFlags,          UINT256,   99)
 
 // number (common)
 TYPED_SFIELD(sfNumber,                   NUMBER,     1)
@@ -255,6 +258,7 @@ TYPED_SFIELD(sfPrice,                    AMOUNT,    28)
 TYPED_SFIELD(sfSignatureReward,          AMOUNT,    29)
 TYPED_SFIELD(sfMinAccountCreateAmount,   AMOUNT,    30)
 TYPED_SFIELD(sfLPTokenBalance,           AMOUNT,    31)
+TYPED_SFIELD(sfTrustLineRewardAccumulator,AMOUNT,   99)
 
 // variable length (common)
 TYPED_SFIELD(sfPublicKey,                VL,         1)
@@ -290,6 +294,7 @@ TYPED_SFIELD(sfAssetClass,               VL,        29)
 TYPED_SFIELD(sfProvider,                 VL,        30)
 TYPED_SFIELD(sfMPTokenMetadata,          VL,        31)
 TYPED_SFIELD(sfCredentialType,           VL,        32)
+TYPED_SFIELD(sfHookName,                 VL,        97)
 TYPED_SFIELD(sfRemarkValue,              VL,        98)
 TYPED_SFIELD(sfRemarkName,               VL,        99)
 
@@ -338,6 +343,7 @@ TYPED_SFIELD(sfLockingChainIssue,        ISSUE,      1)
 TYPED_SFIELD(sfIssuingChainIssue,        ISSUE,      2)
 TYPED_SFIELD(sfAsset,                    ISSUE,      3)
 TYPED_SFIELD(sfAsset2,                   ISSUE,      4)
+TYPED_SFIELD(sfClaimCurrency,            ISSUE,      5)
 
 // bridge
 TYPED_SFIELD(sfXChainBridge,             XCHAIN_BRIDGE, 1)
@@ -365,7 +371,7 @@ UNTYPED_SFIELD(sfMajority,               OBJECT,    18)
 UNTYPED_SFIELD(sfDisabledValidator,      OBJECT,    19)
 UNTYPED_SFIELD(sfEmittedTxn,             OBJECT,    20)
 UNTYPED_SFIELD(sfHookExecution,          OBJECT,    21)
-UNTYPED_SFIELD(sfHookDefinition,         OBJECT,    22)
+                                                 // 22 unused
 UNTYPED_SFIELD(sfHookParameter,          OBJECT,    23)
 UNTYPED_SFIELD(sfHookGrant,              OBJECT,    24)
 UNTYPED_SFIELD(sfVoteEntry,              OBJECT,    25)
@@ -377,6 +383,7 @@ UNTYPED_SFIELD(sfXChainClaimAttestationCollectionElement, OBJECT, 30)
 UNTYPED_SFIELD(sfXChainCreateAccountAttestationCollectionElement, OBJECT, 31)
 UNTYPED_SFIELD(sfPriceData,              OBJECT,    32)
 UNTYPED_SFIELD(sfCredential,             OBJECT,    33)
+UNTYPED_SFIELD(sfManifest,               OBJECT,    90)
 UNTYPED_SFIELD(sfAmountEntry,            OBJECT,    91)
 UNTYPED_SFIELD(sfMintURIToken,           OBJECT,    92)
 UNTYPED_SFIELD(sfHookEmission,           OBJECT,    93)
@@ -384,6 +391,8 @@ UNTYPED_SFIELD(sfImportVLKey,            OBJECT,    94)
 UNTYPED_SFIELD(sfActiveValidator,        OBJECT,    95)
 UNTYPED_SFIELD(sfGenesisMint,            OBJECT,    96)
 UNTYPED_SFIELD(sfRemark,                 OBJECT,    97)
+UNTYPED_SFIELD(sfHighReward,             OBJECT,    98)
+UNTYPED_SFIELD(sfLowReward,              OBJECT,    99)
 
 // array of objects (common)
 // ARRAY/1 is reserved for end of array
@@ -414,9 +423,9 @@ UNTYPED_SFIELD(sfAuthAccounts,           ARRAY,     25)
 UNTYPED_SFIELD(sfAuthorizeCredentials,   ARRAY,     26)
 UNTYPED_SFIELD(sfUnauthorizeCredentials, ARRAY,     27)
 UNTYPED_SFIELD(sfAcceptedCredentials,    ARRAY,     28)
-UNTYPED_SFIELD(sfRemarks,                ARRAY,     97)
-UNTYPED_SFIELD(sfGenesisMints,           ARRAY,     96)
-UNTYPED_SFIELD(sfActiveValidators,       ARRAY,     95)
-UNTYPED_SFIELD(sfImportVLKeys,           ARRAY,     94)
-UNTYPED_SFIELD(sfHookEmissions,          ARRAY,     93)
 UNTYPED_SFIELD(sfAmounts,                ARRAY,     92)
+UNTYPED_SFIELD(sfHookEmissions,          ARRAY,     93)
+UNTYPED_SFIELD(sfImportVLKeys,           ARRAY,     94)
+UNTYPED_SFIELD(sfActiveValidators,       ARRAY,     95)
+UNTYPED_SFIELD(sfGenesisMints,           ARRAY,     96)
+UNTYPED_SFIELD(sfRemarks,                ARRAY,     97)

include/xrpl/protocol/detail/transactions.macro

@@ -500,6 +500,12 @@ TRANSACTION(ttPERMISSIONED_DOMAIN_DELETE, 72, PermissionedDomainDelete, ({
     {sfDomainID, soeREQUIRED},
 }))
 
+/* sfAccount is supplied by TxFormats::commonFields; listing it here as well
+   makes the SOTemplate reject the format at construction. */
+TRANSACTION(ttMANIFEST_SET, 91, SetManifest, ({
+    {sfManifest, soeREQUIRED},
+}))
+
 /* A pseudo-txn alarm signal for invoking a hook, emitted by validators after alarm set conditions are met */
 TRANSACTION(ttCRON, 92, Cron, ({
     {sfOwner, soeREQUIRED},
@@ -513,7 +519,6 @@ TRANSACTION(ttCRON_SET, 93, CronSet, ({
     {sfStartTime, soeOPTIONAL},
 }))
 
-
 /* A note attaching transactor that allows the owner or issuer (on a object by object basis) to attach remarks */
 TRANSACTION(ttREMARKS_SET, 94, SetRemarks, ({
     {sfObjectID, soeREQUIRED},
@@ -551,6 +556,7 @@ TRANSACTION(ttIMPORT, 97, Import, ({
   * from a specified hook */
 TRANSACTION(ttCLAIM_REWARD, 98, ClaimReward, ({
     {sfIssuer, soeOPTIONAL},
+    {sfClaimCurrency, soeOPTIONAL},
 }))
 
 /** This transaction invokes a hook, providing arbitrary data. Essentially as a 0 drop payment. **/

include/xrpl/protocol/jss.h

@@ -76,8 +76,11 @@ JSS(Holder);              // field.
 JSS(HookApiVersion);      // field
 JSS(HookCanEmit);         // field
 JSS(HookHash);            // field
+JSS(HookName);            // field
 JSS(HookNamespace);       // field
 JSS(HookOn);              // field
+JSS(HookOnIncoming);      // field
+JSS(HookOnOutgoing);      // field
 JSS(Hooks);               // field
 JSS(HookGrants);          // field
 JSS(HookParameters);      // field
@@ -95,6 +98,7 @@ JSS(Invalid);                  //
 JSS(Issuer);                   // in: Credential transactions
 JSS(InvoiceID);                // field
 JSS(LastLedgerSequence);       // in: TransactionSign; field
+JSS(FirstLedgerSequence);      // in: TransactionSign; field
 JSS(LastUpdateTime);           // field.
 JSS(LimitAmount);              // field.
 JSS(NetworkID);                // field.
@@ -119,6 +123,7 @@ JSS(Signer);                   // field.
 JSS(Signers);                  // field.
 JSS(HookStateData);            // field.
 JSS(HookStateKey);             // field.
+JSS(EmitDetails);              // field.
 JSS(SigningPubKey);            // field.
 JSS(Subject);                  // in: Credential transactions
 JSS(TakerGets);                // field.
@@ -345,6 +350,7 @@ JSS(hash_mismatches);       // out: catalogue
 JSS(have_header);           // out: InboundLedger
 JSS(have_state);            // out: InboundLedger
 JSS(have_transactions);     // out: InboundLedger
+JSS(hooks);                 // in/out: AccountInfo
 JSS(high);                  // out: BookChanges
 JSS(highest_sequence);      // out: AccountInfo
 JSS(highest_ticket);        // out: AccountInfo
@@ -460,6 +466,7 @@ JSS(max_ledger);              // in/out: LedgerCleaner
 JSS(max_queue_size);          // out: TxQ
 JSS(max_spend_drops);         // out: AccountInfo
 JSS(max_spend_drops_total);   // out: AccountInfo
+JSS(maximum);
 JSS(mean);                    // out: get_aggregate_price
 JSS(median);                  // out: get_aggregate_price
 JSS(median_fee);              // out: TxQ