Improvements

This change introduces two key optimizations:
* Mutex scope reduction: Limits the lock to individual partitions within `TaggedCache`, reducing contention.
* Decoupling: Removes the tight coupling between `LedgerHistory` and `TaggedCache`, improving modularity and testability.

Lock contention analysis based on eBPF showed significant improvements as a result of this change.

.github/actions/dependencies/action.yml

@@ -6,29 +6,17 @@ inputs:
 runs:
   using: composite
   steps:
-    - name: export custom recipes
+    - name: add Conan remote
-      shell: bash
-      run: |
-        conan export --version 1.1.10 external/snappy
-        conan export --version 4.0.3 external/soci
-    - name: add Ripple Conan remote
       if: env.CONAN_URL != ''
       shell: bash
       run: |
-        if conan remote list | grep -q "ripple"; then
+        if conan remote list | grep -q 'xrplf'; then
-            conan remote remove ripple
+          conan remote update --index 0 --url ${CONAN_URL} xrplf
-            echo "Removed conan remote ripple"
+          echo "Updated Conan remote 'xrplf' to ${CONAN_URL}."
+        else
+          conan remote add --index 0 xrplf ${CONAN_URL}
+          echo "Added new Conan remote 'xrplf' at ${CONAN_URL}."
         fi
-        conan remote add --index 0 ripple "${CONAN_URL}"
-        echo "Added conan remote ripple at ${CONAN_URL}"
-    - name: try to authenticate to Ripple Conan remote
-      if: env.CONAN_LOGIN_USERNAME_RIPPLE != '' && env.CONAN_PASSWORD_RIPPLE != ''
-      id: remote
-      shell: bash
-      run: |
-        echo "Authenticating to ripple remote..."
-        conan remote auth ripple --force
-        conan remote list-users
     - name: list missing binaries
       id: binaries
       shell: bash
@@ -48,3 +36,11 @@ runs:
           --options:host "&:xrpld=True" \
           --settings:all build_type=${{ inputs.configuration }} \
           ..
+    - name: upload dependencies
+      if: ${{ env.CONAN_URL != '' && env.CONAN_LOGIN_USERNAME_XRPLF != '' && env.CONAN_PASSWORD_XRPLF != '' && github.ref_type == 'branch' && github.ref_name == github.event.repository.default_branch }}
+      shell: bash
+      run: |
+        echo "Logging into Conan remote 'xrplf' at ${CONAN_URL}."
+        conan remote login xrplf "${{ env.CONAN_LOGIN_USERNAME_XRPLF }}" --password "${{ env.CONAN_PASSWORD_XRPLF }}"
+        echo "Uploading dependencies for configuration '${{ inputs.configuration }}'."
+        conan upload --all --confirm --remote xrplf . --settings build_type=${{ inputs.configuration }}

.github/workflows/libxrpl.yml

@@ -1,8 +1,8 @@
 name: Check libXRPL compatibility with Clio
 env:
-  CONAN_URL: http://18.143.149.228:8081/artifactory/api/conan/dev
+  CONAN_URL: https://conan.ripplex.io
-  CONAN_LOGIN_USERNAME_RIPPLE: ${{ secrets.CONAN_USERNAME }}
+  CONAN_LOGIN_USERNAME_XRPLF: ${{ secrets.CONAN_USERNAME }}
-  CONAN_PASSWORD_RIPPLE: ${{ secrets.CONAN_TOKEN }}
+  CONAN_PASSWORD_XRPLF: ${{ secrets.CONAN_TOKEN }}
 on:
   pull_request:
     paths:
@@ -43,20 +43,20 @@ jobs:
         shell: bash
         run: |
           conan export . ${{ steps.channel.outputs.channel }}
-      - name: Add Ripple Conan remote
+      - name: Add Conan remote
         shell: bash
         run: |
           conan remote list
-          conan remote remove ripple || true
+          conan remote remove xrplf || true
           # Do not quote the URL. An empty string will be accepted (with a non-fatal warning), but a missing argument will not.
-          conan remote add ripple ${{ env.CONAN_URL }} --insert 0
+          conan remote add xrplf ${{ env.CONAN_URL }} --insert 0
       - name: Parse new version
         id: version
         shell: bash
         run: |
           echo version="$(cat src/libxrpl/protocol/BuildInfo.cpp | grep "versionString =" \
             | awk -F '"' '{print $2}')" | tee ${GITHUB_OUTPUT}
-      - name: Try to authenticate to Ripple Conan remote
+      - name: Try to authenticate to Conan remote
         id: remote
         shell: bash
         run: |
@@ -64,7 +64,7 @@ jobs:
           # https://docs.conan.io/1/reference/commands/misc/user.html#using-environment-variables
           # https://docs.conan.io/1/reference/env_vars.html#conan-login-username-conan-login-username-remote-name
           # https://docs.conan.io/1/reference/env_vars.html#conan-password-conan-password-remote-name
-          echo outcome=$(conan user --remote ripple --password >&2 \
+          echo outcome=$(conan user --remote xrplf --password >&2 \
             && echo success || echo failure) | tee ${GITHUB_OUTPUT}
       - name: Upload new package
         id: upload

.github/workflows/macos.yml

@@ -18,9 +18,9 @@ concurrency:
 # This part of Conan configuration is specific to this workflow only; we do not want
 # to pollute conan/profiles directory with settings which might not work for others
 env:
-  CONAN_URL: http://18.143.149.228:8081/artifactory/api/conan/dev
+  CONAN_URL: https://conan.ripplex.io
-  CONAN_LOGIN_USERNAME_RIPPLE: ${{ secrets.CONAN_USERNAME }}
+  CONAN_LOGIN_USERNAME_XRPLF: ${{ secrets.CONAN_USERNAME }}
-  CONAN_PASSWORD_RIPPLE: ${{ secrets.CONAN_TOKEN }}
+  CONAN_PASSWORD_XRPLF: ${{ secrets.CONAN_TOKEN }}
   CONAN_GLOBAL_CONF: |
     core.download:parallel={{os.cpu_count()}}
     core.upload:parallel={{os.cpu_count()}}
@@ -87,24 +87,9 @@ jobs:
           clang --version
       - name: configure Conan
         run : |
-          echo "${CONAN_GLOBAL_CONF}" >> $(conan config home)/global.conf
+          echo "${CONAN_GLOBAL_CONF}" > $(conan config home)/global.conf
           conan config install conan/profiles/ -tf $(conan config home)/profiles/
           conan profile show
-      - name: export custom recipes
-        shell: bash
-        run: |
-          conan export --version 1.1.10 external/snappy
-          conan export --version 4.0.3 external/soci
-      - name: add Ripple Conan remote
-        if: env.CONAN_URL != ''
-        shell: bash
-        run: |
-          if conan remote list | grep -q "ripple"; then
-              conan remote remove ripple
-              echo "Removed conan remote ripple"
-          fi
-          conan remote add --index 0 ripple "${CONAN_URL}"
-          echo "Added conan remote ripple at ${CONAN_URL}"
       - name: build dependencies
         uses: ./.github/actions/dependencies
         with:

.github/workflows/nix.yml

@@ -19,9 +19,9 @@ concurrency:
 # This part of Conan configuration is specific to this workflow only; we do not want
 # to pollute conan/profiles directory with settings which might not work for others
 env:
-  CONAN_URL: http://18.143.149.228:8081/artifactory/api/conan/dev
+  CONAN_URL: https://conan.ripplex.io
-  CONAN_LOGIN_USERNAME_RIPPLE: ${{ secrets.CONAN_USERNAME }}
+  CONAN_LOGIN_USERNAME_XRPLF: ${{ secrets.CONAN_USERNAME }}
-  CONAN_PASSWORD_RIPPLE: ${{ secrets.CONAN_TOKEN }}
+  CONAN_PASSWORD_XRPLF: ${{ secrets.CONAN_TOKEN }}
   CONAN_GLOBAL_CONF: |
     core.download:parallel={{ os.cpu_count() }}
     core.upload:parallel={{ os.cpu_count() }}

.github/workflows/windows.yml

@@ -21,9 +21,9 @@ concurrency:
 # This part of Conan configuration is specific to this workflow only; we do not want
 # to pollute conan/profiles directory with settings which might not work for others
 env:
-  CONAN_URL: http://18.143.149.228:8081/artifactory/api/conan/dev
+  CONAN_URL: https://conan.ripplex.io
-  CONAN_LOGIN_USERNAME_RIPPLE: ${{ secrets.CONAN_USERNAME }}
+  CONAN_LOGIN_USERNAME_XRPLF: ${{ secrets.CONAN_USERNAME }}
-  CONAN_PASSWORD_RIPPLE: ${{ secrets.CONAN_TOKEN }}
+  CONAN_PASSWORD_XRPLF: ${{ secrets.CONAN_TOKEN }}
   CONAN_GLOBAL_CONF: |
     core.download:parallel={{os.cpu_count()}}
     core.upload:parallel={{os.cpu_count()}}
@@ -82,24 +82,9 @@ jobs:
       - name: configure Conan
         shell: bash
         run: |
-          echo "${CONAN_GLOBAL_CONF}" >> $(conan config home)/global.conf
+          echo "${CONAN_GLOBAL_CONF}" > $(conan config home)/global.conf
           conan config install conan/profiles/ -tf $(conan config home)/profiles/
           conan profile show
-      - name: export custom recipes
-        shell: bash
-        run: |
-          conan export --version 1.1.10 external/snappy
-          conan export --version 4.0.3 external/soci
-      - name: add Ripple Conan remote
-        if: env.CONAN_URL != ''
-        shell: bash
-        run: |
-          if conan remote list | grep -q "ripple"; then
-              conan remote remove ripple
-              echo "Removed conan remote ripple"
-          fi
-          conan remote add --index 0 ripple "${CONAN_URL}"
-          echo "Added conan remote ripple at ${CONAN_URL}"
       - name: build dependencies
         uses: ./.github/actions/dependencies
         with:

BUILD.md

@@ -3,29 +3,29 @@
 | These instructions assume you have a C++ development environment ready with Git, Python, Conan, CMake, and a C++ compiler. For help setting one up on Linux, macOS, or Windows, [see this guide](./docs/build/environment.md). |
 
 > These instructions also assume a basic familiarity with Conan and CMake.
-> If you are unfamiliar with Conan,
+> If you are unfamiliar with Conan, you can read our
-> you can read our [crash course](./docs/build/conan.md)
+> [crash course](./docs/build/conan.md) or the official [Getting Started][3]
-> or the official [Getting Started][3] walkthrough.
+> walkthrough.
 
 ## Branches
 
 For a stable release, choose the `master` branch or one of the [tagged
 releases](https://github.com/ripple/rippled/releases).
 
-```
+```bash
 git checkout master
 ```
 
 For the latest release candidate, choose the `release` branch.
 
-```
+```bash
 git checkout release
 ```
 
 For the latest set of untested features, or to contribute, choose the `develop`
 branch.
 
-```
+```bash
 git checkout develop
 ```
 
@@ -33,151 +33,295 @@ git checkout develop
 
 See [System Requirements](https://xrpl.org/system-requirements.html).
 
-Building rippled generally requires git, Python, Conan, CMake, and a C++ compiler. Some guidance on setting up such a [C++ development environment can be found here](./docs/build/environment.md).
+Building rippled generally requires git, Python, Conan, CMake, and a C++
+compiler. Some guidance on setting up such a [C++ development environment can be
+found here](./docs/build/environment.md).
 
-- [Python 3.7](https://www.python.org/downloads/)
+- [Python 3.11](https://www.python.org/downloads/), or higher
-- [Conan 1.60](https://conan.io/downloads.html)[^1]
+- [Conan 2.17](https://conan.io/downloads.html)[^1], or higher
-- [CMake 3.16](https://cmake.org/download/)
+- [CMake 3.22](https://cmake.org/download/)[^2], or higher
 
-[^1]: It is possible to build with Conan 2.x,
+[^1]: It is possible to build with Conan 1.60+, but the instructions are
-but the instructions are significantly different,
+significantly different, which is why we are not recommending it.
-which is why we are not recommending it yet.
+
-Notably, the `conan profile update` command is removed in 2.x.
+[^2]: CMake 4 is not yet supported by all dependencies required by this project.
-Profiles must be edited by hand.
+If you are affected by this issue, follow [conan workaround for cmake
+4](#workaround-for-cmake-4)
 
 `rippled` is written in the C++20 dialect and includes the `<concepts>` header.
 The [minimum compiler versions][2] required are:
 
 | Compiler    | Version |
-|-------------|---------|
+|-------------|-----|
-| GCC         | 11      |
+| GCC         | 12  |
-| Clang       | 13      |
+| Clang       | 16  |
-| Apple Clang | 13.1.6  |
+| Apple Clang | 16  |
-| MSVC        | 19.23   |
+| MSVC        | 19.44[^3] |
 
 ### Linux
 
-The Ubuntu operating system has received the highest level of
+The Ubuntu Linux distribution has received the highest level of quality
-quality assurance, testing, and support.
+assurance, testing, and support. We also support Red Hat and use Debian
+internally.
 
-Here are [sample instructions for setting up a C++ development environment on Linux](./docs/build/environment.md#linux).
+Here are [sample instructions for setting up a C++ development environment on
+Linux](./docs/build/environment.md#linux).
 
 ### Mac
 
 Many rippled engineers use macOS for development.
 
-Here are [sample instructions for setting up a C++ development environment on macOS](./docs/build/environment.md#macos).
+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.
+Windows is used by some engineers for development only.
 
-- Additionally, 32-bit Windows development is not supported.
+[^3]: Windows is not recommended for production use.
-
-[Boost]: https://www.boost.org/
 
 ## Steps
 
 ### Set Up Conan
 
-After you have a [C++ development environment](./docs/build/environment.md) ready with Git, Python, Conan, CMake, and a C++ compiler, you may need to set up your Conan profile.
+After you have a [C++ development environment](./docs/build/environment.md) ready with Git, Python,
+Conan, CMake, and a C++ compiler, you may need to set up your Conan profile.
 
-These instructions assume a basic familiarity with Conan and CMake.
+These instructions assume a basic familiarity with Conan and CMake. If you are
+unfamiliar with Conan, then please read [this crash course](./docs/build/conan.md) or the official
+[Getting Started][3] walkthrough.
 
-If you are unfamiliar with Conan, then please read [this crash course](./docs/build/conan.md) or the official [Getting Started][3] walkthrough.
+#### Default profile
+We recommend that you import the provided `conan/profiles/default` profile:
 
-You'll need at least one Conan profile:
+```bash
-
+conan config install conan/profiles/ -tf $(conan config home)/profiles/
-   ```
-   conan profile new default --detect
-   ```
-
-Update the compiler settings:
-
-   ```
-   conan profile update settings.compiler.cppstd=20 default
-   ```
-
-Configure Conan (1.x only) to use recipe revisions:
-
-   ```
-   conan config set general.revisions_enabled=1
-   ```
-
-**Linux** developers will commonly have a default Conan [profile][] that compiles
-with GCC and links with libstdc++.
-If you are linking with libstdc++ (see profile setting `compiler.libcxx`),
-then you will need to choose the `libstdc++11` ABI:
-
-   ```
-   conan profile update settings.compiler.libcxx=libstdc++11 default
-   ```
-
-
-Ensure inter-operability between `boost::string_view` and `std::string_view` types:
-
-```
-conan profile update 'conf.tools.build:cxxflags+=["-DBOOST_BEAST_USE_STD_STRING_VIEW"]' default
-conan profile update 'env.CXXFLAGS="-DBOOST_BEAST_USE_STD_STRING_VIEW"' default
 ```
 
-If you have other flags in the `conf.tools.build` or `env.CXXFLAGS` sections, make sure to retain the existing flags and append the new ones. You can check them with:
+You can check your Conan profile by running:
-```
+
-conan profile show default
+```bash
+conan profile show
 ```
 
+#### Custom profile
 
-**Windows** developers may need to use the x64 native build tools.
+If the default profile does not work for you and you do not yet have a Conan
-An easy way to do that is to run the shortcut "x64 Native Tools Command
+profile, you can create one by running:
-Prompt" for the version of Visual Studio that you have installed.
 
-   Windows developers must also build `rippled` and its dependencies for the x64
+```bash
-   architecture:
+conan profile detect
-
-   ```
-   conan profile update settings.arch=x86_64 default
-   ```
-
-### Multiple compilers
-
-When `/usr/bin/g++` exists on a platform, it is the default cpp compiler. This
-default works for some users.
-
-However, if this compiler cannot build rippled or its dependencies, then you can
-install another compiler and set Conan and CMake to use it.
-Update the `conf.tools.build:compiler_executables` setting in order to set the correct variables (`CMAKE_<LANG>_COMPILER`) in the
-generated CMake toolchain file.
-For example, on Ubuntu 20, you may have gcc at `/usr/bin/gcc` and g++ at `/usr/bin/g++`; if that is the case, you can select those compilers with:
-```
-conan profile update 'conf.tools.build:compiler_executables={"c": "/usr/bin/gcc", "cpp": "/usr/bin/g++"}' default
 ```
 
-Replace `/usr/bin/gcc` and `/usr/bin/g++` with paths to the desired compilers.
+You may need to make changes to the profile to suit your environment. You can
+refer to the provided `conan/profiles/default` profile for inspiration, and you
+may also need to apply the required [tweaks](#conan-profile-tweaks) to this
+default profile.
 
-It should choose the compiler for dependencies as well,
+### Patched recipes
-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`
+The recipes in Conan Center occasionally need to be patched for compatibility
-- `conan profile update env.CXX=<path> default`
+with the latest version of `rippled`. We maintain a fork of the Conan Center
+[here](https://github.com/XRPLF/conan-center-index/) containing the patches.
 
-Export our [Conan recipe for Snappy](./external/snappy).
+To ensure our patched recipes are used, you must add our Conan remote at a
-It does not explicitly link the C++ standard library,
+higher index than the default Conan Center remote, so it is consulted first. You
-which allows you to statically link it with GCC, if you want.
+can do this by running:
 
-   ```
+```bash
-   # Conan 2.x
+conan remote add --index 0 xrplf "https://conan.ripplex.io"
-   conan export --version 1.1.10 external/snappy
+```
+
+Alternatively, you can pull the patched recipes into the repository and use them
+locally:
+
+```bash
+cd external
+git init
+git remote add origin git@github.com:XRPLF/conan-center-index.git
+git sparse-checkout init
+git sparse-checkout set recipes/snappy
+git sparse-checkout add recipes/soci
+git fetch origin master
+git checkout master
+conan export --version 1.1.10 external/recipes/snappy
+conan export --version 4.0.3 external/recipes/soci
+```
+
+In the case we switch to a newer version of a dependency that still requires a
+patch, it will be necessary for you to pull in the changes and re-export the
+updated dependencies with the newer version. However, if we switch to a newer
+version that no longer requires a patch, no action is required on your part, as
+the new recipe will be automatically pulled from the official Conan Center.
+
+### Conan profile tweaks
+
+#### Missing compiler version
+
+If you see an error similar to the following after running `conan profile show`:
+
+```bash
+ERROR: Invalid setting '17' is not a valid 'settings.compiler.version' value.
+Possible values are ['5.0', '5.1', '6.0', '6.1', '7.0', '7.3', '8.0', '8.1',
+'9.0', '9.1', '10.0', '11.0', '12.0', '13', '13.0', '13.1', '14', '14.0', '15',
+'15.0', '16', '16.0']
+Read "http://docs.conan.io/2/knowledge/faq.html#error-invalid-setting"
+```
+
+you need to amend the list of compiler versions in
+`$(conan config home)/settings.yml`, by appending the required version number(s)
+to the `version` array specific for your compiler. For example:
+
+```yaml
+   apple-clang:
+      version: ["5.0", "5.1", "6.0", "6.1", "7.0", "7.3", "8.0", "8.1", "9.0",
+                "9.1", "10.0", "11.0", "12.0", "13", "13.0", "13.1", "14",
+                "14.0", "15", "15.0", "16", "16.0", "17", "17.0"]
+```
+
+#### Multiple compilers
+
+If you have multiple compilers installed, make sure to select the one to use in
+your default Conan configuration **before** running `conan profile detect`, by
+setting the `CC` and `CXX` environment variables.
+
+For example, if you are running MacOS and have [homebrew
+LLVM@18](https://formulae.brew.sh/formula/llvm@18), and want to use it as a
+compiler in the new Conan profile:
+
+   ```bash
+   export CC=$(brew --prefix llvm@18)/bin/clang
+   export CXX=$(brew --prefix llvm@18)/bin/clang++
+   conan profile detect
    ```
 
-Export our [Conan recipe for SOCI](./external/soci).
+You should also explicitly set the path to the compiler in the profile file,
-It patches their CMake to correctly import its dependencies.
+which helps to avoid errors when `CC` and/or `CXX` are set and disagree with the
+selected Conan profile. For example:
 
-   ```
+```text
-   # Conan 2.x
+[conf]
-   conan export --version 4.0.3 external/soci
+tools.build:compiler_executables={'c':'/usr/bin/gcc','cpp':'/usr/bin/g++'}
-   ```
+```
+
+#### Multiple profiles
+
+You can manage multiple Conan profiles in the directory
+`$(conan config home)/profiles`, for example renaming `default` to a different
+name and then creating a new `default` profile for a different compiler.
+
+#### Select language
+
+The default profile created by Conan will typically select different C++ dialect
+than C++20 used by this project. You should set `20` in the profile line
+starting with `compiler.cppstd=`. For example:
+
+```bash
+sed -i.bak -e 's|^compiler\.cppstd=.*$|compiler.cppstd=20|' $(conan config home)/profiles/default
+```
+
+#### Select standard library in Linux
+
+**Linux** developers will commonly have a default Conan [profile][] that
+compiles with GCC and links with libstdc++. If you are linking with libstdc++
+(see profile setting `compiler.libcxx`), then you will need to choose the
+`libstdc++11` ABI:
+
+```bash
+sed -i.bak -e 's|^compiler\.libcxx=.*$|compiler.libcxx=libstdc++11|' $(conan config home)/profiles/default
+```
+
+#### Select architecture and runtime in Windows
+
+**Windows** developers may need to use the x64 native build tools. An easy way
+to do that is to run the shortcut "x64 Native Tools Command Prompt" for the
+version of Visual Studio that you have installed.
+
+Windows developers must also build `rippled` and its dependencies for the x64
+architecture:
+
+```bash
+sed -i.bak -e 's|^arch=.*$|arch=x86_64|' $(conan config home)/profiles/default
+```
+
+**Windows** developers also must select static runtime:
+
+```bash
+sed -i.bak -e 's|^compiler\.runtime=.*$|compiler.runtime=static|' $(conan config home)/profiles/default
+```
+
+#### Workaround for CMake 4
+
+If your system CMake is version 4 rather than 3, you may have to configure Conan
+profile to use CMake version 3 for dependencies, by adding the following two
+lines to your profile:
+
+```text
+[tool_requires]
+!cmake/*: cmake/[>=3 <4]
+```
+
+This will force Conan to download and use a locally cached CMake 3 version, and
+is needed because some of the dependencies used by this project do not support
+CMake 4.
+
+#### Clang workaround for grpc
+
+If your compiler is clang, version 19 or later, or apple-clang, version 17 or
+later, you may encounter a compilation error while building the `grpc`
+dependency:
+
+```text
+In file included from .../lib/promise/try_seq.h:26:
+.../lib/promise/detail/basic_seq.h:499:38: error: a template argument list is expected after a name prefixed by the template keyword [-Wmissing-template-arg-list-after-template-kw]
+  499 |                     Traits::template CallSeqFactory(f_, *cur_, std::move(arg)));
+      |                                      ^
+```
+
+The workaround for this error is to add two lines to profile:
+
+```text
+[conf]
+tools.build:cxxflags=['-Wno-missing-template-arg-list-after-template-kw']
+```
+
+#### Workaround for gcc 12
+
+If your compiler is gcc, version 12, and you have enabled `werr` option, you may
+encounter a compilation error such as:
+
+```text
+/usr/include/c++/12/bits/char_traits.h:435:56: error: 'void* __builtin_memcpy(void*, const void*, long unsigned int)' accessing 9223372036854775810 or more bytes at offsets [2, 9223372036854775807] and 1 may overlap up to 9223372036854775813 bytes at offset -3 [-Werror=restrict]
+  435 |         return static_cast<char_type*>(__builtin_memcpy(__s1, __s2, __n));
+      |                                        ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
+cc1plus: all warnings being treated as errors
+```
+
+The workaround for this error is to add two lines to your profile:
+
+```text
+[conf]
+tools.build:cxxflags=['-Wno-restrict']
+```
+
+#### Workaround for clang 16
+
+If your compiler is clang, version 16, you may encounter compilation error such
+as:
+
+```text
+In file included from .../boost/beast/websocket/stream.hpp:2857:
+.../boost/beast/websocket/impl/read.hpp:695:17: error: call to 'async_teardown' is ambiguous
+                async_teardown(impl.role, impl.stream(),
+                ^~~~~~~~~~~~~~
+```
+
+The workaround for this error is to add two lines to your profile:
+
+```text
+[conf]
+tools.build:cxxflags=['-DBOOST_ASIO_DISABLE_CONCEPTS']
+```
 
 ### Build and Test
 
@@ -245,7 +389,6 @@ It patches their CMake to correctly import its dependencies.
     cmake -DCMAKE_TOOLCHAIN_FILE:FILEPATH=build/generators/conan_toolchain.cmake -DCMAKE_BUILD_TYPE=Release -Dxrpld=ON -Dtests=ON ..
     ```
 
-
     Multi-config generators:
 
     ```
@@ -257,13 +400,13 @@ It patches their CMake to correctly import its dependencies.
 5. Build `rippled`.
 
    For a single-configuration generator, it will build whatever configuration
-   you passed for `CMAKE_BUILD_TYPE`. For a multi-configuration generator,
+   you passed for `CMAKE_BUILD_TYPE`. For a multi-configuration generator, you
-   you must pass the option `--config` to select the build configuration. 
+   must pass the option `--config` to select the build configuration.
 
    Single-config generators:
 
    ```
-   cmake --build . -j $(nproc)
+   cmake --build .
    ```
 
    Multi-config generators:
@@ -278,18 +421,22 @@ It patches their CMake to correctly import its dependencies.
    Single-config generators:
 
    ```
-   ./rippled --unittest
+   ./rippled --unittest --unittest-jobs N
    ```
 
    Multi-config generators:
 
    ```
-   ./Release/rippled --unittest
+   ./Release/rippled --unittest --unittest-jobs N
-   ./Debug/rippled --unittest
+   ./Debug/rippled --unittest --unittest-jobs N
    ```
 
-   The location of `rippled` in your build directory depends on your CMake
+   Replace the `--unittest-jobs` parameter N with the desired unit tests
-   generator. Pass `--help` to see the rest of the command line options.
+   concurrency. Recommended setting is half of the number of available CPU
+   cores.
+
+   The location of `rippled` binary in your build directory depends on your
+   CMake generator. Pass `--help` to see the rest of the command line options.
 
 
 ## Coverage report
@@ -347,7 +494,7 @@ cmake --build . --target coverage
 After the `coverage` target is completed, the generated coverage report will be
 stored inside the build directory, as either of:
 
-- file named `coverage.`_extension_ , with a suitable extension for the report format, or
+- file named `coverage.`_extension_, with a suitable extension for the report format, or
 - directory named `coverage`, with the `index.html` and other files inside, for the `html-details` or `html-nested` report formats.
 
 
@@ -355,12 +502,14 @@ stored inside the build directory, as either of:
 
 | Option | Default Value | Description |
 | --- | ---| ---|
-| `assert` | OFF | Enable assertions.
+| `assert` | OFF | Enable assertions. |
 | `coverage` | OFF | Prepare the coverage report. |
 | `san` | N/A | Enable a sanitizer with Clang. Choices are `thread` and `address`. |
 | `tests` | OFF | Build tests. |
-| `unity` | ON | Configure a unity build. |
+| `unity` | OFF | Configure a unity build. |
 | `xrpld` | OFF | Build the xrpld (`rippled`) application, and not just the libxrpl library. |
+| `werr` | OFF | Treat compilation warnings as errors |
+| `wextra` | OFF | Enable additional compilation warnings |
 
 [Unity builds][5] may be faster for the first build
 (at the cost of much more memory) since they concatenate sources into fewer
@@ -375,12 +524,28 @@ and can be helpful for detecting `#include` omissions.
 After any updates or changes to dependencies, you may need to do the following:
 
 1. Remove your build directory.
-2. Remove the Conan cache: `conan remove "*" -c`
+2. Remove individual libraries from the Conan cache, e.g.
-3. Re-run [conan install](#build-and-test).
 
-### 'protobuf/port_def.inc' file not found
+   ```bash
+   conan remove 'grpc/*'
+   ```
 
-If `cmake --build .` results in an error due to a missing a protobuf file, then you might have generated CMake files for a different `build_type` than the `CMAKE_BUILD_TYPE` you passed to conan.
+   **or**
+
+   Remove all libraries from Conan cache:
+
+   ```bash
+   conan remove '*'
+   ```
+
+3. Re-run [conan export](#patched-recipes) if needed.
+4. Re-run [conan install](#build-and-test).
+
+### `protobuf/port_def.inc` file not found
+
+If `cmake --build .` results in an error due to a missing a protobuf file, then
+you might have generated CMake files for a different `build_type` than the
+`CMAKE_BUILD_TYPE` you passed to Conan.
 
 ```
 /rippled/.build/pb-xrpl.libpb/xrpl/proto/ripple.pb.h:10:10: fatal error: 'google/protobuf/port_def.inc' file not found

docs/build/environment.md

@@ -10,37 +10,35 @@ 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.
+The instructions below are written for Debian 12 (Bookworm).
-They are largely copied from the [script][1] used to configure our Docker
-container for continuous integration.
-That script handles many more responsibilities.
-These instructions are just the bare minimum to build one configuration of
-rippled.
-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
-direction.
 
 ```
-apt update
+export GCC_RELEASE=12
-apt install --yes curl git libssl-dev pipx python3.10-dev python3-pip make g++-11 libprotobuf-dev protobuf-compiler
+sudo apt update
+sudo apt install --yes gcc-${GCC_RELEASE} g++-${GCC_RELEASE} python3-pip \
+  python-is-python3 python3-venv python3-dev curl wget ca-certificates \
+  git build-essential cmake ninja-build libc6-dev
+sudo pip install --break-system-packages conan
 
-curl --location --remote-name \
+sudo update-alternatives --install /usr/bin/cc cc /usr/bin/gcc-${GCC_RELEASE} 999
-  "https://github.com/Kitware/CMake/releases/download/v3.25.1/cmake-3.25.1.tar.gz"
+sudo update-alternatives --install \
-tar -xzf cmake-3.25.1.tar.gz
+  /usr/bin/gcc gcc /usr/bin/gcc-${GCC_RELEASE} 100 \
-rm cmake-3.25.1.tar.gz
+  --slave /usr/bin/g++ g++ /usr/bin/g++-${GCC_RELEASE} \
-cd cmake-3.25.1
+  --slave /usr/bin/gcc-ar gcc-ar /usr/bin/gcc-ar-${GCC_RELEASE} \
-./bootstrap --parallel=$(nproc)
+  --slave /usr/bin/gcc-nm gcc-nm /usr/bin/gcc-nm-${GCC_RELEASE} \
-make --jobs $(nproc)
+  --slave /usr/bin/gcc-ranlib gcc-ranlib /usr/bin/gcc-ranlib-${GCC_RELEASE} \
-make install
+  --slave /usr/bin/gcov gcov /usr/bin/gcov-${GCC_RELEASE} \
-cd ..
+  --slave /usr/bin/gcov-tool gcov-tool /usr/bin/gcov-tool-${GCC_RELEASE} \
-
+  --slave /usr/bin/gcov-dump gcov-dump /usr/bin/gcov-dump-${GCC_RELEASE} \
-pipx install 'conan<2'
+  --slave /usr/bin/lto-dump lto-dump /usr/bin/lto-dump-${GCC_RELEASE}
-pipx ensurepath
+sudo update-alternatives --auto cc
+sudo update-alternatives --auto gcc
 ```
 
-[1]: https://github.com/thejohnfreeman/rippled-docker/blob/master/ubuntu-22.04/install.sh
+If you use different Linux distribution, hope the instruction above can guide
-
+you in the right direction. We try to maintain compatibility with all recent
+compiler releases, so if you use a rolling distribution like e.g. Arch or CentOS
+then there is a chance that everything will "just work".
 
 ## macOS
 
@@ -53,6 +51,34 @@ minimum required (see [BUILD.md][]).
 clang --version
 ```
 
+### Install Xcode Specific Version (Optional)
+
+If you develop other applications using XCode you might be consistently updating to the newest version of Apple Clang. 
+This will likely cause issues building rippled. You may want to install a specific version of Xcode:
+
+1. **Download Xcode**
+
+   - Visit [Apple Developer Downloads](https://developer.apple.com/download/more/)
+   - Sign in with your Apple Developer account
+   - Search for an Xcode version that includes **Apple Clang (Expected Version)**
+   - Download the `.xip` file
+
+2. **Install and Configure Xcode**
+
+   ```bash
+   # Extract the .xip file and rename for version management
+   # Example: Xcode_16.2.app
+
+   # Move to Applications directory
+   sudo mv Xcode_16.2.app /Applications/
+
+   # Set as default toolchain (persistent)
+   sudo xcode-select -s /Applications/Xcode_16.2.app/Contents/Developer
+
+   # Set as environment variable (temporary)
+   export DEVELOPER_DIR=/Applications/Xcode_16.2.app/Contents/Developer
+   ```
+
 The command line developer tools should include Git too:
 
 ```
@@ -72,10 +98,10 @@ and use it to install Conan:
 brew update
 brew install xz
 brew install pyenv
-pyenv install 3.10-dev
+pyenv install 3.11
-pyenv global 3.10-dev
+pyenv global 3.11
 eval "$(pyenv init -)"
-pip install 'conan<2'
+pip install 'conan'
 ```
 
 Install CMake with Homebrew too:

external/README.md

@@ -1,14 +1,10 @@
 # External Conan recipes
 
-The subdirectories in this directory contain either copies or Conan recipes
+The subdirectories in this directory contain copies of external libraries used
-of external libraries used by rippled.
+by rippled.
-The Conan recipes include patches we have not yet pushed upstream.
 
 | Folder          | Upstream                                     | Description |
 |:----------------|:---------------------------------------------|:------------|
 | `antithesis-sdk`| [Project](https://github.com/antithesishq/antithesis-sdk-cpp/) | [Antithesis](https://antithesis.com/docs/using_antithesis/sdk/cpp/overview.html) SDK for C++ |
 | `ed25519-donna` | [Project](https://github.com/floodyberry/ed25519-donna) | [Ed25519](http://ed25519.cr.yp.to/) digital signatures |
-| `rocksdb`       | [Recipe](https://github.com/conan-io/conan-center-index/tree/master/recipes/rocksdb) | Fast key/value database. (Supports rotational disks better than NuDB.) |
 | `secp256k1`     | [Project](https://github.com/bitcoin-core/secp256k1)    | ECDSA digital signatures using the **secp256k1** curve |
-| `snappy`        | [Recipe](https://github.com/conan-io/conan-center-index/tree/master/recipes/snappy)  | "Snappy" lossless compression algorithm. |
-| `soci`          | [Recipe](https://github.com/conan-io/conan-center-index/tree/master/recipes/soci)    | Abstraction layer for database access. |

external/snappy/conandata.yml

@@ -1,40 +0,0 @@
-sources:
-  "1.1.10":
-    url: "https://github.com/google/snappy/archive/1.1.10.tar.gz"
-    sha256: "49d831bffcc5f3d01482340fe5af59852ca2fe76c3e05df0e67203ebbe0f1d90"
-  "1.1.9":
-    url: "https://github.com/google/snappy/archive/1.1.9.tar.gz"
-    sha256: "75c1fbb3d618dd3a0483bff0e26d0a92b495bbe5059c8b4f1c962b478b6e06e7"
-  "1.1.8":
-    url: "https://github.com/google/snappy/archive/1.1.8.tar.gz"
-    sha256: "16b677f07832a612b0836178db7f374e414f94657c138e6993cbfc5dcc58651f"
-  "1.1.7":
-    url: "https://github.com/google/snappy/archive/1.1.7.tar.gz"
-    sha256: "3dfa02e873ff51a11ee02b9ca391807f0c8ea0529a4924afa645fbf97163f9d4"
-patches:
-  "1.1.10":
-    - patch_file: "patches/1.1.10-0001-fix-inlining-failure.patch"
-      patch_description: "disable inlining for compilation error"
-      patch_type: "portability"
-    - patch_file: "patches/1.1.9-0002-no-Werror.patch"
-      patch_description: "disable 'warning as error' options"
-      patch_type: "portability"
-    - patch_file: "patches/1.1.10-0003-fix-clobber-list-older-llvm.patch"
-      patch_description: "disable inline asm on apple-clang"
-      patch_type: "portability"
-    - patch_file: "patches/1.1.9-0004-rtti-by-default.patch"
-      patch_description: "remove 'disable rtti'"
-      patch_type: "conan"
-  "1.1.9":
-    - patch_file: "patches/1.1.9-0001-fix-inlining-failure.patch"
-      patch_description: "disable inlining for compilation error"
-      patch_type: "portability"
-    - patch_file: "patches/1.1.9-0002-no-Werror.patch"
-      patch_description: "disable 'warning as error' options"
-      patch_type: "portability"
-    - patch_file: "patches/1.1.9-0003-fix-clobber-list-older-llvm.patch"
-      patch_description: "disable inline asm on apple-clang"
-      patch_type: "portability"
-    - patch_file: "patches/1.1.9-0004-rtti-by-default.patch"
-      patch_description: "remove 'disable rtti'"
-      patch_type: "conan"

external/snappy/conanfile.py

@@ -1,89 +0,0 @@
-from conan import ConanFile
-from conan.tools.build import check_min_cppstd
-from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
-from conan.tools.files import apply_conandata_patches, copy, export_conandata_patches, get, rmdir
-from conan.tools.scm import Version
-import os
-
-required_conan_version = ">=1.54.0"
-
-
-class SnappyConan(ConanFile):
-    name = "snappy"
-    description = "A fast compressor/decompressor"
-    topics = ("google", "compressor", "decompressor")
-    url = "https://github.com/conan-io/conan-center-index"
-    homepage = "https://github.com/google/snappy"
-    license = "BSD-3-Clause"
-
-    package_type = "library"
-    settings = "os", "arch", "compiler", "build_type"
-    options = {
-        "shared": [True, False],
-        "fPIC": [True, False],
-    }
-    default_options = {
-        "shared": False,
-        "fPIC": True,
-    }
-
-    def export_sources(self):
-        export_conandata_patches(self)
-
-    def config_options(self):
-        if self.settings.os == 'Windows':
-            del self.options.fPIC
-
-    def configure(self):
-        if self.options.shared:
-            self.options.rm_safe("fPIC")
-
-    def layout(self):
-        cmake_layout(self, src_folder="src")
-
-    def validate(self):
-        if self.settings.compiler.get_safe("cppstd"):
-            check_min_cppstd(self, 11)
-
-    def source(self):
-        get(self, **self.conan_data["sources"][self.version], strip_root=True)
-
-    def generate(self):
-        tc = CMakeToolchain(self)
-        tc.variables["SNAPPY_BUILD_TESTS"] = False
-        if Version(self.version) >= "1.1.8":
-            tc.variables["SNAPPY_FUZZING_BUILD"] = False
-            tc.variables["SNAPPY_REQUIRE_AVX"] = False
-            tc.variables["SNAPPY_REQUIRE_AVX2"] = False
-            tc.variables["SNAPPY_INSTALL"] = True
-        if Version(self.version) >= "1.1.9":
-            tc.variables["SNAPPY_BUILD_BENCHMARKS"] = False
-        tc.generate()
-
-    def build(self):
-        apply_conandata_patches(self)
-        cmake = CMake(self)
-        cmake.configure()
-        cmake.build()
-
-    def package(self):
-        copy(self, "COPYING", src=self.source_folder, dst=os.path.join(self.package_folder, "licenses"))
-        cmake = CMake(self)
-        cmake.install()
-        rmdir(self, os.path.join(self.package_folder, "lib", "cmake"))
-
-    def package_info(self):
-        self.cpp_info.set_property("cmake_file_name", "Snappy")
-        self.cpp_info.set_property("cmake_target_name", "Snappy::snappy")
-        # TODO: back to global scope in conan v2 once cmake_find_package* generators removed
-        self.cpp_info.components["snappylib"].libs = ["snappy"]
-        if not self.options.shared:
-            if self.settings.os in ["Linux", "FreeBSD"]:
-                self.cpp_info.components["snappylib"].system_libs.append("m")
-
-        # TODO: to remove in conan v2 once cmake_find_package* generators removed
-        self.cpp_info.names["cmake_find_package"] = "Snappy"
-        self.cpp_info.names["cmake_find_package_multi"] = "Snappy"
-        self.cpp_info.components["snappylib"].names["cmake_find_package"] = "snappy"
-        self.cpp_info.components["snappylib"].names["cmake_find_package_multi"] = "snappy"
-        self.cpp_info.components["snappylib"].set_property("cmake_target_name", "Snappy::snappy")

external/snappy/patches/1.1.10-0001-fix-inlining-failure.patch

@@ -1,13 +0,0 @@
-diff --git a/snappy-stubs-internal.h b/snappy-stubs-internal.h
-index 1548ed7..3b4a9f3 100644
---- a/snappy-stubs-internal.h
-+++ b/snappy-stubs-internal.h
-@@ -100,7 +100,7 @@
- 
- // Inlining hints.
- #if HAVE_ATTRIBUTE_ALWAYS_INLINE
--#define SNAPPY_ATTRIBUTE_ALWAYS_INLINE __attribute__((always_inline))
-+#define SNAPPY_ATTRIBUTE_ALWAYS_INLINE
- #else
- #define SNAPPY_ATTRIBUTE_ALWAYS_INLINE
- #endif  // HAVE_ATTRIBUTE_ALWAYS_INLINE

external/snappy/patches/1.1.10-0003-fix-clobber-list-older-llvm.patch

@@ -1,13 +0,0 @@
-diff --git a/snappy.cc b/snappy.cc
-index d414718..e4efb59 100644
---- a/snappy.cc
-+++ b/snappy.cc
-@@ -1132,7 +1132,7 @@ inline size_t AdvanceToNextTagX86Optimized(const uint8_t** ip_p, size_t* tag) {
-   size_t literal_len = *tag >> 2;
-   size_t tag_type = *tag;
-   bool is_literal;
--#if defined(__GCC_ASM_FLAG_OUTPUTS__) && defined(__x86_64__)
-+#if defined(__GCC_ASM_FLAG_OUTPUTS__) && defined(__x86_64__) && ( (!defined(__clang__) && !defined(__APPLE__)) || (!defined(__APPLE__) && defined(__clang__) && (__clang_major__ >= 9)) || (defined(__APPLE__) && defined(__clang__) && (__clang_major__ > 11)) )
-   // TODO clang misses the fact that the (c & 3) already correctly
-   // sets the zero flag.
-   asm("and $3, %k[tag_type]\n\t"

external/snappy/patches/1.1.9-0001-fix-inlining-failure.patch

@@ -1,14 +0,0 @@
-Fixes the following error:
-error: inlining failed in call to ‘always_inline’ ‘size_t snappy::AdvanceToNextTag(const uint8_t**, size_t*)’: function body can be overwritten at link time
-
---- snappy-stubs-internal.h
-+++ snappy-stubs-internal.h
-@@ -100,7 +100,7 @@
- 
- // Inlining hints.
- #ifdef HAVE_ATTRIBUTE_ALWAYS_INLINE
--#define SNAPPY_ATTRIBUTE_ALWAYS_INLINE __attribute__((always_inline))
-+#define SNAPPY_ATTRIBUTE_ALWAYS_INLINE
- #else
- #define SNAPPY_ATTRIBUTE_ALWAYS_INLINE
- #endif

external/snappy/patches/1.1.9-0002-no-Werror.patch

@@ -1,12 +0,0 @@
---- CMakeLists.txt
-+++ CMakeLists.txt
-@@ -69,7 +69,7 @@
--  # Use -Werror for clang only.
-+if(0)
-   if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-     if(NOT CMAKE_CXX_FLAGS MATCHES "-Werror")
-       set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
-     endif(NOT CMAKE_CXX_FLAGS MATCHES "-Werror")
-   endif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
--
-+endif()

external/snappy/patches/1.1.9-0003-fix-clobber-list-older-llvm.patch

@@ -1,12 +0,0 @@
-asm clobbers do not work for clang < 9 and apple-clang < 11 (found by SpaceIm)
---- snappy.cc
-+++ snappy.cc
-@@ -1026,7 +1026,7 @@
-   size_t literal_len = *tag >> 2;
-   size_t tag_type = *tag;
-   bool is_literal;
--#if defined(__GNUC__) && defined(__x86_64__)
-+#if defined(__GNUC__) && defined(__x86_64__) && ( (!defined(__clang__) && !defined(__APPLE__)) || (!defined(__APPLE__) && defined(__clang__) && (__clang_major__ >= 9)) || (defined(__APPLE__) && defined(__clang__) && (__clang_major__ > 11)) )
-   // TODO clang misses the fact that the (c & 3) already correctly
-   // sets the zero flag.
-   asm("and $3, %k[tag_type]\n\t"

external/snappy/patches/1.1.9-0004-rtti-by-default.patch

@@ -1,20 +0,0 @@
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -53,8 +53,6 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
-   add_definitions(-D_HAS_EXCEPTIONS=0)
- 
-   # Disable RTTI.
--  string(REGEX REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
--  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-")
- else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
-   # Use -Wall for clang and gcc.
-   if(NOT CMAKE_CXX_FLAGS MATCHES "-Wall")
-@@ -78,8 +76,6 @@ endif()
-   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions")
- 
-   # Disable RTTI.
--  string(REGEX REPLACE "-frtti" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
--  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
- endif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
- 
- # BUILD_SHARED_LIBS is a standard CMake variable, but we declare it here to make

external/soci/conandata.yml

@@ -1,12 +0,0 @@
-sources:
-  "4.0.3":
-    url: "https://github.com/SOCI/soci/archive/v4.0.3.tar.gz"
-    sha256: "4b1ff9c8545c5d802fbe06ee6cd2886630e5c03bf740e269bb625b45cf934928"
-patches:
-  "4.0.3":
-    - patch_file: "patches/0001-Remove-hardcoded-INSTALL_NAME_DIR-for-relocatable-li.patch"
-      patch_description: "Generate relocatable libraries on MacOS"
-      patch_type: "portability"
-    - patch_file: "patches/0002-Fix-soci_backend.patch"
-      patch_description: "Fix variable names for dependencies"
-      patch_type: "conan"

external/soci/conanfile.py

@@ -1,212 +0,0 @@
-from conan import ConanFile
-from conan.tools.build import check_min_cppstd
-from conan.tools.cmake import CMake, CMakeDeps, CMakeToolchain, cmake_layout
-from conan.tools.files import apply_conandata_patches, copy, export_conandata_patches, get, rmdir
-from conan.tools.microsoft import is_msvc
-from conan.tools.scm import Version
-from conan.errors import ConanInvalidConfiguration
-import os
-
-required_conan_version = ">=1.55.0"
-
-
-class SociConan(ConanFile):
-    name = "soci"
-    homepage = "https://github.com/SOCI/soci"
-    url = "https://github.com/conan-io/conan-center-index"
-    description = "The C++ Database Access Library "
-    topics = ("mysql", "odbc", "postgresql", "sqlite3")
-    license = "BSL-1.0"
-
-    settings = "os", "arch", "compiler", "build_type"
-    options = {
-        "shared":           [True, False],
-        "fPIC":             [True, False],
-        "empty":            [True, False],
-        "with_sqlite3":     [True, False],
-        "with_db2":         [True, False],
-        "with_odbc":        [True, False],
-        "with_oracle":      [True, False],
-        "with_firebird":    [True, False],
-        "with_mysql":       [True, False],
-        "with_postgresql":  [True, False],
-        "with_boost":       [True, False],
-    }
-    default_options = {
-        "shared":           False,
-        "fPIC":             True,
-        "empty":            False,
-        "with_sqlite3":     False,
-        "with_db2":         False,
-        "with_odbc":        False,
-        "with_oracle":      False,
-        "with_firebird":    False,
-        "with_mysql":       False,
-        "with_postgresql":  False,
-        "with_boost":       False,
-    }
-
-    def export_sources(self):
-        export_conandata_patches(self)
-
-    def layout(self):
-        cmake_layout(self, src_folder="src")
-
-    def config_options(self):
-        if self.settings.os == "Windows":
-            self.options.rm_safe("fPIC")
-
-    def configure(self):
-        if self.options.shared:
-            self.options.rm_safe("fPIC")
-
-    def requirements(self):
-        if self.options.with_sqlite3:
-            self.requires("sqlite3/3.47.0")
-        if self.options.with_odbc and self.settings.os != "Windows":
-            self.requires("odbc/2.3.11")
-        if self.options.with_mysql:
-            self.requires("libmysqlclient/8.1.0")
-        if self.options.with_postgresql:
-            self.requires("libpq/15.5")
-        if self.options.with_boost:
-            self.requires("boost/1.86.0")
-
-    @property
-    def _minimum_compilers_version(self):
-        return {
-            "Visual Studio": "14",
-            "gcc": "4.8",
-            "clang": "3.8",
-            "apple-clang": "8.0"
-        }
-
-    def validate(self):
-        if self.settings.compiler.get_safe("cppstd"):
-            check_min_cppstd(self, 11)
-
-        compiler = str(self.settings.compiler)
-        compiler_version = Version(self.settings.compiler.version.value)
-        if compiler not in self._minimum_compilers_version:
-            self.output.warning("{} recipe lacks information about the {} compiler support.".format(self.name, self.settings.compiler))
-        elif compiler_version < self._minimum_compilers_version[compiler]:
-            raise ConanInvalidConfiguration("{} requires a {} version >= {}".format(self.name, compiler, compiler_version))
-
-        prefix  = "Dependencies for"
-        message = "not configured in this conan package."
-        if self.options.with_db2:
-            # self.requires("db2/0.0.0") # TODO add support for db2
-            raise ConanInvalidConfiguration("{} DB2 {} ".format(prefix, message))
-        if self.options.with_oracle:
-            # self.requires("oracle_db/0.0.0") # TODO add support for oracle
-            raise ConanInvalidConfiguration("{} ORACLE {} ".format(prefix, message))
-        if self.options.with_firebird:
-            # self.requires("firebird/0.0.0") # TODO add support for firebird
-            raise ConanInvalidConfiguration("{} firebird {} ".format(prefix, message))
-
-    def source(self):
-        get(self, **self.conan_data["sources"][self.version], strip_root=True)
-
-    def generate(self):
-        tc = CMakeToolchain(self)
-
-        tc.variables["SOCI_SHARED"] = self.options.shared
-        tc.variables["SOCI_STATIC"] = not self.options.shared
-        tc.variables["SOCI_TESTS"] = False
-        tc.variables["SOCI_CXX11"] = True
-        tc.variables["SOCI_EMPTY"] = self.options.empty
-        tc.variables["WITH_SQLITE3"] = self.options.with_sqlite3
-        tc.variables["WITH_DB2"] = self.options.with_db2
-        tc.variables["WITH_ODBC"] = self.options.with_odbc
-        tc.variables["WITH_ORACLE"] = self.options.with_oracle
-        tc.variables["WITH_FIREBIRD"] = self.options.with_firebird
-        tc.variables["WITH_MYSQL"] = self.options.with_mysql
-        tc.variables["WITH_POSTGRESQL"] = self.options.with_postgresql
-        tc.variables["WITH_BOOST"] = self.options.with_boost
-        tc.generate()
-
-        deps = CMakeDeps(self)
-        deps.generate()
-
-    def build(self):
-        apply_conandata_patches(self)
-        cmake = CMake(self)
-        cmake.configure()
-        cmake.build()
-
-    def package(self):
-        copy(self, "LICENSE_1_0.txt", dst=os.path.join(self.package_folder, "licenses"), src=self.source_folder)
-
-        cmake = CMake(self)
-        cmake.install()
-
-        rmdir(self, os.path.join(self.package_folder, "lib", "cmake"))
-
-    def package_info(self):
-        self.cpp_info.set_property("cmake_file_name", "SOCI")
-
-        target_suffix = "" if self.options.shared else "_static"
-        lib_prefix = "lib" if is_msvc(self) and not self.options.shared else ""
-        version = Version(self.version)
-        lib_suffix = "_{}_{}".format(version.major, version.minor) if self.settings.os == "Windows" else ""
-
-        # soci_core
-        self.cpp_info.components["soci_core"].set_property("cmake_target_name", "SOCI::soci_core{}".format(target_suffix))
-        self.cpp_info.components["soci_core"].libs = ["{}soci_core{}".format(lib_prefix, lib_suffix)]
-        if self.options.with_boost:
-            self.cpp_info.components["soci_core"].requires.append("boost::headers")
-
-        # soci_empty
-        if self.options.empty:
-            self.cpp_info.components["soci_empty"].set_property("cmake_target_name", "SOCI::soci_empty{}".format(target_suffix))
-            self.cpp_info.components["soci_empty"].libs = ["{}soci_empty{}".format(lib_prefix, lib_suffix)]
-            self.cpp_info.components["soci_empty"].requires = ["soci_core"]
-
-        # soci_sqlite3
-        if self.options.with_sqlite3:
-            self.cpp_info.components["soci_sqlite3"].set_property("cmake_target_name", "SOCI::soci_sqlite3{}".format(target_suffix))
-            self.cpp_info.components["soci_sqlite3"].libs = ["{}soci_sqlite3{}".format(lib_prefix, lib_suffix)]
-            self.cpp_info.components["soci_sqlite3"].requires = ["soci_core", "sqlite3::sqlite3"]
-
-        # soci_odbc
-        if self.options.with_odbc:
-            self.cpp_info.components["soci_odbc"].set_property("cmake_target_name", "SOCI::soci_odbc{}".format(target_suffix))
-            self.cpp_info.components["soci_odbc"].libs = ["{}soci_odbc{}".format(lib_prefix, lib_suffix)]
-            self.cpp_info.components["soci_odbc"].requires = ["soci_core"]
-            if self.settings.os == "Windows":
-                self.cpp_info.components["soci_odbc"].system_libs.append("odbc32")
-            else:
-                self.cpp_info.components["soci_odbc"].requires.append("odbc::odbc")
-
-        # soci_mysql
-        if self.options.with_mysql:
-            self.cpp_info.components["soci_mysql"].set_property("cmake_target_name", "SOCI::soci_mysql{}".format(target_suffix))
-            self.cpp_info.components["soci_mysql"].libs = ["{}soci_mysql{}".format(lib_prefix, lib_suffix)]
-            self.cpp_info.components["soci_mysql"].requires = ["soci_core", "libmysqlclient::libmysqlclient"]
-
-        # soci_postgresql
-        if self.options.with_postgresql:
-            self.cpp_info.components["soci_postgresql"].set_property("cmake_target_name", "SOCI::soci_postgresql{}".format(target_suffix))
-            self.cpp_info.components["soci_postgresql"].libs = ["{}soci_postgresql{}".format(lib_prefix, lib_suffix)]
-            self.cpp_info.components["soci_postgresql"].requires = ["soci_core", "libpq::libpq"]
-
-        # TODO: to remove in conan v2 once cmake_find_package* generators removed
-        self.cpp_info.names["cmake_find_package"] = "SOCI"
-        self.cpp_info.names["cmake_find_package_multi"] = "SOCI"
-        self.cpp_info.components["soci_core"].names["cmake_find_package"] = "soci_core{}".format(target_suffix)
-        self.cpp_info.components["soci_core"].names["cmake_find_package_multi"] = "soci_core{}".format(target_suffix)
-        if self.options.empty:
-            self.cpp_info.components["soci_empty"].names["cmake_find_package"] = "soci_empty{}".format(target_suffix)
-            self.cpp_info.components["soci_empty"].names["cmake_find_package_multi"] = "soci_empty{}".format(target_suffix)
-        if self.options.with_sqlite3:
-            self.cpp_info.components["soci_sqlite3"].names["cmake_find_package"] = "soci_sqlite3{}".format(target_suffix)
-            self.cpp_info.components["soci_sqlite3"].names["cmake_find_package_multi"] = "soci_sqlite3{}".format(target_suffix)
-        if self.options.with_odbc:
-            self.cpp_info.components["soci_odbc"].names["cmake_find_package"] = "soci_odbc{}".format(target_suffix)
-            self.cpp_info.components["soci_odbc"].names["cmake_find_package_multi"] = "soci_odbc{}".format(target_suffix)
-        if self.options.with_mysql:
-            self.cpp_info.components["soci_mysql"].names["cmake_find_package"] = "soci_mysql{}".format(target_suffix)
-            self.cpp_info.components["soci_mysql"].names["cmake_find_package_multi"] = "soci_mysql{}".format(target_suffix)
-        if self.options.with_postgresql:
-            self.cpp_info.components["soci_postgresql"].names["cmake_find_package"] = "soci_postgresql{}".format(target_suffix)
-            self.cpp_info.components["soci_postgresql"].names["cmake_find_package_multi"] = "soci_postgresql{}".format(target_suffix)

external/soci/patches/0001-Remove-hardcoded-INSTALL_NAME_DIR-for-relocatable-li.patch

@@ -1,39 +0,0 @@
-From d491bf7b5040d314ffd0c6310ba01f78ff44c85e Mon Sep 17 00:00:00 2001
-From: Rasmus Thomsen <rasmus.thomsen@dampsoft.de>
-Date: Fri, 14 Apr 2023 09:16:29 +0200
-Subject: [PATCH] Remove hardcoded INSTALL_NAME_DIR for relocatable libraries
- on MacOS
-
----
- cmake/SociBackend.cmake | 2 +-
- src/core/CMakeLists.txt | 1 -
- 2 files changed, 1 insertion(+), 2 deletions(-)
-
-diff --git a/cmake/SociBackend.cmake b/cmake/SociBackend.cmake
-index 5d4ef0df..39fe1f77 100644
---- a/cmake/SociBackend.cmake
-+++ b/cmake/SociBackend.cmake
-@@ -171,7 +171,7 @@ macro(soci_backend NAME)
-           set_target_properties(${THIS_BACKEND_TARGET}
-             PROPERTIES
-             SOVERSION ${${PROJECT_NAME}_SOVERSION}
--            INSTALL_NAME_DIR ${CMAKE_INSTALL_PREFIX}/lib)
-+          )
- 
-           if(APPLE)
-             set_target_properties(${THIS_BACKEND_TARGET}
-diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
-index 3e7deeae..f9eae564 100644
---- a/src/core/CMakeLists.txt
-+++ b/src/core/CMakeLists.txt
-@@ -59,7 +59,6 @@ if (SOCI_SHARED)
-       PROPERTIES
-       VERSION ${SOCI_VERSION}
-       SOVERSION ${SOCI_SOVERSION}
--      INSTALL_NAME_DIR ${CMAKE_INSTALL_PREFIX}/lib
-       CLEAN_DIRECT_OUTPUT 1)
-   endif()
- 
--- 
-2.25.1
-

external/soci/patches/0002-Fix-soci_backend.patch

@@ -1,24 +0,0 @@
-diff --git a/cmake/SociBackend.cmake b/cmake/SociBackend.cmake
-index 0a664667..3fa2ed95 100644
---- a/cmake/SociBackend.cmake
-+++ b/cmake/SociBackend.cmake
-@@ -31,14 +31,13 @@ macro(soci_backend_deps_found NAME DEPS SUCCESS)
-     if(NOT DEPEND_FOUND)
-       list(APPEND DEPS_NOT_FOUND ${dep})
-     else()
--      string(TOUPPER "${dep}" DEPU)
--      if( ${DEPU}_INCLUDE_DIR )
--        list(APPEND DEPS_INCLUDE_DIRS ${${DEPU}_INCLUDE_DIR})
-+      if( ${dep}_INCLUDE_DIR )
-+        list(APPEND DEPS_INCLUDE_DIRS ${${dep}_INCLUDE_DIR})
-       endif()
--      if( ${DEPU}_INCLUDE_DIRS )
--        list(APPEND DEPS_INCLUDE_DIRS ${${DEPU}_INCLUDE_DIRS})
-+      if( ${dep}_INCLUDE_DIRS )
-+        list(APPEND DEPS_INCLUDE_DIRS ${${dep}_INCLUDE_DIRS})
-       endif()
--      list(APPEND DEPS_LIBRARIES ${${DEPU}_LIBRARIES})
-+      list(APPEND DEPS_LIBRARIES ${${dep}_LIBRARIES})
-     endif()
-   endforeach()
- 

include/xrpl/basics/SHAMapHash.h

@@ -21,7 +21,6 @@
 #define RIPPLE_BASICS_SHAMAP_HASH_H_INCLUDED
 
 #include <xrpl/basics/base_uint.h>
-#include <xrpl/basics/partitioned_unordered_map.h>
 
 #include <ostream>
 

include/xrpl/basics/TaggedCache.h

@@ -90,9 +90,6 @@ public:
     int
     getCacheSize() const;
 
-    int
-    getTrackSize() const;
-
     float
     getHitRate();
 
@@ -170,9 +167,6 @@ public:
     bool
     retrieve(key_type const& key, T& data);
 
-    mutex_type&
-    peekMutex();
-
     std::vector<key_type>
     getKeys() const;
 
@@ -193,11 +187,14 @@ public:
 
 private:
     SharedPointerType
-    initialFetch(key_type const& key, std::lock_guard<mutex_type> const& l);
+    initialFetch(key_type const& key);
 
     void
     collect_metrics();
 
+    Mutex&
+    lockPartition(key_type const& key) const;
+
 private:
     struct Stats
     {
@@ -300,8 +297,8 @@ private:
         [[maybe_unused]] clock_type::time_point const& now,
         typename KeyValueCacheType::map_type& partition,
         SweptPointersVector& stuffToSweep,
-        std::atomic<int>& allRemovals,
+        std::atomic<int>& allRemoval,
-        std::lock_guard<std::recursive_mutex> const&);
+        Mutex& partitionLock);
 
     [[nodiscard]] std::thread
     sweepHelper(
@@ -310,14 +307,12 @@ private:
         typename KeyOnlyCacheType::map_type& partition,
         SweptPointersVector&,
         std::atomic<int>& allRemovals,
-        std::lock_guard<std::recursive_mutex> const&);
+        Mutex& partitionLock);
 
     beast::Journal m_journal;
     clock_type& m_clock;
     Stats m_stats;
 
-    mutex_type mutable m_mutex;
-
     // Used for logging
     std::string m_name;
 
@@ -328,10 +323,11 @@ private:
     clock_type::duration const m_target_age;
 
     // Number of items cached
-    int m_cache_count;
+    std::atomic<int> m_cache_count;
     cache_type m_cache;  // Hold strong reference to recent objects
-    std::uint64_t m_hits;
+    std::atomic<std::uint64_t> m_hits;
-    std::uint64_t m_misses;
+    std::atomic<std::uint64_t> m_misses;
+    mutable std::vector<mutex_type> partitionLocks_;
 };
 
 }  // namespace ripple

include/xrpl/basics/TaggedCache.ipp

@@ -22,6 +22,7 @@
 
 #include <xrpl/basics/IntrusivePointer.ipp>
 #include <xrpl/basics/TaggedCache.h>
+#include <xrpl/beast/core/CurrentThreadName.h>
 
 namespace ripple {
 
@@ -60,6 +61,7 @@ inline TaggedCache<
     , m_hits(0)
     , m_misses(0)
 {
+    partitionLocks_ = std::vector<mutex_type>(m_cache.partitions());
 }
 
 template <
@@ -105,8 +107,13 @@ TaggedCache<
     KeyEqual,
     Mutex>::size() const
 {
-    std::lock_guard lock(m_mutex);
+    std::size_t totalSize = 0;
-    return m_cache.size();
+    for (size_t i = 0; i < partitionLocks_.size(); ++i)
+    {
+        std::lock_guard<Mutex> lock(partitionLocks_[i]);
+        totalSize += m_cache.map()[i].size();
+    }
+    return totalSize;
 }
 
 template <
@@ -129,32 +136,7 @@ TaggedCache<
     KeyEqual,
     Mutex>::getCacheSize() const
 {
-    std::lock_guard lock(m_mutex);
+    return m_cache_count.load(std::memory_order_relaxed);
-    return m_cache_count;
-}
-
-template <
-    class Key,
-    class T,
-    bool IsKeyCache,
-    class SharedWeakUnionPointer,
-    class SharedPointerType,
-    class Hash,
-    class KeyEqual,
-    class Mutex>
-inline int
-TaggedCache<
-    Key,
-    T,
-    IsKeyCache,
-    SharedWeakUnionPointer,
-    SharedPointerType,
-    Hash,
-    KeyEqual,
-    Mutex>::getTrackSize() const
-{
-    std::lock_guard lock(m_mutex);
-    return m_cache.size();
 }
 
 template <
@@ -177,9 +159,10 @@ TaggedCache<
     KeyEqual,
     Mutex>::getHitRate()
 {
-    std::lock_guard lock(m_mutex);
+    auto const hits = m_hits.load(std::memory_order_relaxed);
-    auto const total = static_cast<float>(m_hits + m_misses);
+    auto const misses = m_misses.load(std::memory_order_relaxed);
-    return m_hits * (100.0f / std::max(1.0f, total));
+    float const total = float(hits + misses);
+    return hits * (100.0f / std::max(1.0f, total));
 }
 
 template <
@@ -202,9 +185,12 @@ TaggedCache<
     KeyEqual,
     Mutex>::clear()
 {
-    std::lock_guard lock(m_mutex);
+    for (auto& mutex : partitionLocks_)
+        mutex.lock();
     m_cache.clear();
-    m_cache_count = 0;
+    for (auto& mutex : partitionLocks_)
+        mutex.unlock();
+    m_cache_count.store(0, std::memory_order_relaxed);
 }
 
 template <
@@ -227,11 +213,9 @@ TaggedCache<
     KeyEqual,
     Mutex>::reset()
 {
-    std::lock_guard lock(m_mutex);
+    clear();
-    m_cache.clear();
+    m_hits.store(0, std::memory_order_relaxed);
-    m_cache_count = 0;
+    m_misses.store(0, std::memory_order_relaxed);
-    m_hits = 0;
-    m_misses = 0;
 }
 
 template <
@@ -255,7 +239,7 @@ TaggedCache<
     KeyEqual,
     Mutex>::touch_if_exists(KeyComparable const& key)
 {
-    std::lock_guard lock(m_mutex);
+    std::lock_guard<Mutex> lock(lockPartition(key));
     auto const iter(m_cache.find(key));
     if (iter == m_cache.end())
     {
@@ -297,8 +281,6 @@ TaggedCache<
 
     auto const start = std::chrono::steady_clock::now();
     {
-        std::lock_guard lock(m_mutex);
-
         if (m_target_size == 0 ||
             (static_cast<int>(m_cache.size()) <= m_target_size))
         {
@@ -330,12 +312,13 @@ TaggedCache<
                 m_cache.map()[p],
                 allStuffToSweep[p],
                 allRemovals,
-                lock));
+                partitionLocks_[p]));
         }
         for (std::thread& worker : workers)
             worker.join();
 
-        m_cache_count -= allRemovals;
+        int removals = allRemovals.load(std::memory_order_relaxed);
+        m_cache_count.fetch_sub(removals, std::memory_order_relaxed);
     }
     // At this point allStuffToSweep will go out of scope outside the lock
     // and decrement the reference count on each strong pointer.
@@ -369,7 +352,8 @@ TaggedCache<
 {
     // Remove from cache, if !valid, remove from map too. Returns true if
     // removed from cache
-    std::lock_guard lock(m_mutex);
+
+    std::lock_guard<Mutex> lock(lockPartition(key));
 
     auto cit = m_cache.find(key);
 
@@ -382,7 +366,7 @@ TaggedCache<
 
     if (entry.isCached())
     {
-        --m_cache_count;
+        m_cache_count.fetch_sub(1, std::memory_order_relaxed);
         entry.ptr.convertToWeak();
         ret = true;
     }
@@ -420,17 +404,16 @@ TaggedCache<
 {
     // Return canonical value, store if needed, refresh in cache
     // Return values: true=we had the data already
-    std::lock_guard lock(m_mutex);
 
+    std::lock_guard<Mutex> lock(lockPartition(key));
     auto cit = m_cache.find(key);
-
     if (cit == m_cache.end())
     {
         m_cache.emplace(
             std::piecewise_construct,
             std::forward_as_tuple(key),
             std::forward_as_tuple(m_clock.now(), data));
-        ++m_cache_count;
+        m_cache_count.fetch_add(1, std::memory_order_relaxed);
         return false;
     }
 
@@ -479,12 +462,12 @@ TaggedCache<
             data = cachedData;
         }
 
-        ++m_cache_count;
+        m_cache_count.fetch_add(1, std::memory_order_relaxed);
         return true;
     }
 
     entry.ptr = data;
-    ++m_cache_count;
+    m_cache_count.fetch_add(1, std::memory_order_relaxed);
 
     return false;
 }
@@ -560,10 +543,11 @@ TaggedCache<
     KeyEqual,
     Mutex>::fetch(key_type const& key)
 {
-    std::lock_guard<mutex_type> l(m_mutex);
+    std::lock_guard<Mutex> lock(lockPartition(key));
-    auto ret = initialFetch(key, l);
+
+    auto ret = initialFetch(key);
     if (!ret)
-        ++m_misses;
+        m_misses.fetch_add(1, std::memory_order_relaxed);
     return ret;
 }
 
@@ -627,8 +611,8 @@ TaggedCache<
     Mutex>::insert(key_type const& key)
     -> std::enable_if_t<IsKeyCache, ReturnType>
 {
-    std::lock_guard lock(m_mutex);
     clock_type::time_point const now(m_clock.now());
+    std::lock_guard<Mutex> lock(lockPartition(key));
     auto [it, inserted] = m_cache.emplace(
         std::piecewise_construct,
         std::forward_as_tuple(key),
@@ -668,29 +652,6 @@ TaggedCache<
     return true;
 }
 
-template <
-    class Key,
-    class T,
-    bool IsKeyCache,
-    class SharedWeakUnionPointer,
-    class SharedPointerType,
-    class Hash,
-    class KeyEqual,
-    class Mutex>
-inline auto
-TaggedCache<
-    Key,
-    T,
-    IsKeyCache,
-    SharedWeakUnionPointer,
-    SharedPointerType,
-    Hash,
-    KeyEqual,
-    Mutex>::peekMutex() -> mutex_type&
-{
-    return m_mutex;
-}
-
 template <
     class Key,
     class T,
@@ -714,10 +675,13 @@ TaggedCache<
     std::vector<key_type> v;
 
     {
-        std::lock_guard lock(m_mutex);
         v.reserve(m_cache.size());
-        for (auto const& _ : m_cache)
+        for (std::size_t i = 0; i < partitionLocks_.size(); ++i)
-            v.push_back(_.first);
+        {
+            std::lock_guard<Mutex> lock(partitionLocks_[i]);
+            for (auto const& entry : m_cache.map()[i])
+                v.push_back(entry.first);
+        }
     }
 
     return v;
@@ -743,11 +707,12 @@ TaggedCache<
     KeyEqual,
     Mutex>::rate() const
 {
-    std::lock_guard lock(m_mutex);
+    auto const hits = m_hits.load(std::memory_order_relaxed);
-    auto const tot = m_hits + m_misses;
+    auto const misses = m_misses.load(std::memory_order_relaxed);
+    auto const tot = hits + misses;
     if (tot == 0)
-        return 0;
+        return 0.0;
-    return double(m_hits) / tot;
+    return double(hits) / tot;
 }
 
 template <
@@ -771,18 +736,16 @@ TaggedCache<
     KeyEqual,
     Mutex>::fetch(key_type const& digest, Handler const& h)
 {
-    {
+    std::lock_guard<Mutex> lock(lockPartition(digest));
-        std::lock_guard l(m_mutex);
+
-        if (auto ret = initialFetch(digest, l))
+    if (auto ret = initialFetch(digest))
         return ret;
-    }
 
     auto sle = h();
     if (!sle)
         return {};
 
-    std::lock_guard l(m_mutex);
+    m_misses.fetch_add(1, std::memory_order_relaxed);
-    ++m_misses;
     auto const [it, inserted] =
         m_cache.emplace(digest, Entry(m_clock.now(), std::move(sle)));
     if (!inserted)
@@ -809,9 +772,10 @@ TaggedCache<
     SharedPointerType,
     Hash,
     KeyEqual,
-    Mutex>::
+    Mutex>::initialFetch(key_type const& key)
-    initialFetch(key_type const& key, std::lock_guard<mutex_type> const& l)
 {
+    std::lock_guard<Mutex> lock(lockPartition(key));
+
     auto cit = m_cache.find(key);
     if (cit == m_cache.end())
         return {};
@@ -819,7 +783,7 @@ TaggedCache<
     Entry& entry = cit->second;
     if (entry.isCached())
     {
-        ++m_hits;
+        m_hits.fetch_add(1, std::memory_order_relaxed);
         entry.touch(m_clock.now());
         return entry.ptr.getStrong();
     }
@@ -827,12 +791,13 @@ TaggedCache<
     if (entry.isCached())
     {
         // independent of cache size, so not counted as a hit
-        ++m_cache_count;
+        m_cache_count.fetch_add(1, std::memory_order_relaxed);
         entry.touch(m_clock.now());
         return entry.ptr.getStrong();
     }
 
     m_cache.erase(cit);
+
     return {};
 }
 
@@ -861,10 +826,11 @@ TaggedCache<
     {
         beast::insight::Gauge::value_type hit_rate(0);
         {
-            std::lock_guard lock(m_mutex);
+            auto const hits = m_hits.load(std::memory_order_relaxed);
-            auto const total(m_hits + m_misses);
+            auto const misses = m_misses.load(std::memory_order_relaxed);
+            auto const total = hits + misses;
             if (total != 0)
-                hit_rate = (m_hits * 100) / total;
+                hit_rate = (hits * 100) / total;
         }
         m_stats.hit_rate.set(hit_rate);
     }
@@ -895,12 +861,16 @@ TaggedCache<
         typename KeyValueCacheType::map_type& partition,
         SweptPointersVector& stuffToSweep,
         std::atomic<int>& allRemovals,
-        std::lock_guard<std::recursive_mutex> const&)
+        Mutex& partitionLock)
 {
     return std::thread([&, this]() {
+        beast::setCurrentThreadName("sweep-KVCache");
+
         int cacheRemovals = 0;
         int mapRemovals = 0;
 
+        std::lock_guard<Mutex> lock(partitionLock);
+
         // Keep references to all the stuff we sweep
         // so that we can destroy them outside the lock.
         stuffToSweep.reserve(partition.size());
@@ -984,12 +954,16 @@ TaggedCache<
         typename KeyOnlyCacheType::map_type& partition,
         SweptPointersVector&,
         std::atomic<int>& allRemovals,
-        std::lock_guard<std::recursive_mutex> const&)
+        Mutex& partitionLock)
 {
     return std::thread([&, this]() {
+        beast::setCurrentThreadName("sweep-KCache");
+
         int cacheRemovals = 0;
         int mapRemovals = 0;
 
+        std::lock_guard<Mutex> lock(partitionLock);
+
         // Keep references to all the stuff we sweep
         // so that we can destroy them outside the lock.
         {
@@ -1024,6 +998,29 @@ TaggedCache<
     });
 }
 
+template <
+    class Key,
+    class T,
+    bool IsKeyCache,
+    class SharedWeakUnionPointer,
+    class SharedPointerType,
+    class Hash,
+    class KeyEqual,
+    class Mutex>
+inline Mutex&
+TaggedCache<
+    Key,
+    T,
+    IsKeyCache,
+    SharedWeakUnionPointer,
+    SharedPointerType,
+    Hash,
+    KeyEqual,
+    Mutex>::lockPartition(key_type const& key) const
+{
+    return partitionLocks_[m_cache.partition_index(key)];
+}
+
 }  // namespace ripple
 
 #endif

include/xrpl/basics/partitioned_unordered_map.h

@@ -277,6 +277,12 @@ public:
         return map_;
     }
 
+    partition_map_type const&
+    map() const
+    {
+        return map_;
+    }
+
     iterator
     begin()
     {
@@ -321,6 +327,12 @@ public:
         return cend();
     }
 
+    std::size_t
+    partition_index(key_type const& key) const
+    {
+        return partitioner(key);
+    }
+
 private:
     template <class T>
     void

include/xrpl/beast/hash/xxhasher.h

@@ -24,32 +24,111 @@
 
 #include <xxhash.h>
 
+#include <array>
 #include <cstddef>
-#include <new>
+#include <cstdint>
-#include <type_traits>
+#include <optional>
+#include <span>
 
 namespace beast {
 
 class xxhasher
 {
-private:
+public:
-    // requires 64-bit std::size_t
+    using result_type = std::size_t;
-    static_assert(sizeof(std::size_t) == 8, "");
 
-    XXH3_state_t* state_;
+private:
+    static_assert(sizeof(std::size_t) == 8, "requires 64-bit std::size_t");
+
+    // Have an internal buffer to avoid the streaming API
+    // A 64-byte buffer should to be big enough for us
+    static constexpr std::size_t INTERNAL_BUFFER_SIZE = 64;
+
+    alignas(64) std::array<std::uint8_t, INTERNAL_BUFFER_SIZE> buffer_;
+    std::span<std::uint8_t> readBuffer_;
+    std::span<std::uint8_t> writeBuffer_;
+
+    std::optional<XXH64_hash_t> seed_;
+    XXH3_state_t* state_ = nullptr;
+
+    void
+    resetBuffers()
+    {
+        writeBuffer_ = std::span{buffer_};
+        readBuffer_ = {};
+    }
+
+    void
+    updateHash(void const* data, std::size_t len)
+    {
+        if (writeBuffer_.size() < len)
+        {
+            flushToState(data, len);
+        }
+        else
+        {
+            std::memcpy(writeBuffer_.data(), data, len);
+            writeBuffer_ = writeBuffer_.subspan(len);
+            readBuffer_ = std::span{
+                std::begin(buffer_), buffer_.size() - writeBuffer_.size()};
+        }
+    }
 
     static XXH3_state_t*
     allocState()
     {
         auto ret = XXH3_createState();
         if (ret == nullptr)
-            throw std::bad_alloc();
+            throw std::bad_alloc();  // LCOV_EXCL_LINE
         return ret;
     }
 
-public:
+    void
-    using result_type = std::size_t;
+    flushToState(void const* data, std::size_t len)
+    {
+        if (!state_)
+        {
+            state_ = allocState();
+            if (seed_.has_value())
+            {
+                XXH3_64bits_reset_withSeed(state_, *seed_);
+            }
+            else
+            {
+                XXH3_64bits_reset(state_);
+            }
+        }
+        XXH3_64bits_update(state_, readBuffer_.data(), readBuffer_.size());
+        resetBuffers();
+        if (data && len)
+        {
+            XXH3_64bits_update(state_, data, len);
+        }
+    }
 
+    result_type
+    retrieveHash()
+    {
+        if (state_)
+        {
+            flushToState(nullptr, 0);
+            return XXH3_64bits_digest(state_);
+        }
+        else
+        {
+            if (seed_.has_value())
+            {
+                return XXH3_64bits_withSeed(
+                    readBuffer_.data(), readBuffer_.size(), *seed_);
+            }
+            else
+            {
+                return XXH3_64bits(readBuffer_.data(), readBuffer_.size());
+            }
+        }
+    }
+
+public:
     static constexpr auto const endian = boost::endian::order::native;
 
     xxhasher(xxhasher const&) = delete;
@@ -58,43 +137,43 @@ public:
 
     xxhasher()
     {
-        state_ = allocState();
+        resetBuffers();
-        XXH3_64bits_reset(state_);
     }
 
     ~xxhasher() noexcept
+    {
+        if (state_)
         {
             XXH3_freeState(state_);
         }
-
-    template <
-        class Seed,
-        std::enable_if_t<std::is_unsigned<Seed>::value>* = nullptr>
-    explicit xxhasher(Seed seed)
-    {
-        state_ = allocState();
-        XXH3_64bits_reset_withSeed(state_, seed);
     }
 
     template <
         class Seed,
         std::enable_if_t<std::is_unsigned<Seed>::value>* = nullptr>
-    xxhasher(Seed seed, Seed)
+    explicit xxhasher(Seed seed) : seed_(seed)
     {
-        state_ = allocState();
+        resetBuffers();
-        XXH3_64bits_reset_withSeed(state_, seed);
+    }
+
+    template <
+        class Seed,
+        std::enable_if_t<std::is_unsigned<Seed>::value>* = nullptr>
+    xxhasher(Seed seed, Seed) : seed_(seed)
+    {
+        resetBuffers();
     }
 
     void
     operator()(void const* key, std::size_t len) noexcept
     {
-        XXH3_64bits_update(state_, key, len);
+        updateHash(key, len);
     }
 
     explicit
-    operator std::size_t() noexcept
+    operator result_type() noexcept
     {
-        return XXH3_64bits_digest(state_);
+        return retrieveHash();
     }
 };
 

include/xrpl/protocol/Protocol.h

@@ -22,7 +22,6 @@
 
 #include <xrpl/basics/ByteUtilities.h>
 #include <xrpl/basics/base_uint.h>
-#include <xrpl/basics/partitioned_unordered_map.h>
 
 #include <cstdint>
 

include/xrpl/protocol/detail/features.macro

@@ -32,6 +32,7 @@
 // If you add an amendment here, then do not forget to increment `numFeatures`
 // in include/xrpl/protocol/Feature.h.
 
+XRPL_FIX    (PriceOracleOrder,           Supported::no,  VoteBehavior::DefaultNo)
 XRPL_FIX    (MPTDeliveredAmount,         Supported::no,  VoteBehavior::DefaultNo)
 XRPL_FIX    (AMMClawbackRounding,        Supported::no,  VoteBehavior::DefaultNo)
 XRPL_FEATURE(TokenEscrow,                Supported::yes, VoteBehavior::DefaultNo)

src/test/app/Oracle_test.cpp

@@ -678,6 +678,61 @@ private:
             oracle.set(
                 UpdateArg{.series = {{"XRP", "USD", 742, 2}}, .fee = baseFee});
         }
+
+        for (bool const withFixOrder : {false, true})
+        {
+            // Should be same order as creation
+            Env env(
+                *this,
+                withFixOrder ? testable_amendments()
+                             : testable_amendments() - fixPriceOracleOrder);
+            auto const baseFee =
+                static_cast<int>(env.current()->fees().base.drops());
+
+            auto test = [&](Env& env, DataSeries const& series) {
+                env.fund(XRP(1'000), owner);
+                Oracle oracle(
+                    env, {.owner = owner, .series = series, .fee = baseFee});
+                BEAST_EXPECT(oracle.exists());
+                auto sle = env.le(keylet::oracle(owner, oracle.documentID()));
+                BEAST_EXPECT(
+                    sle->getFieldArray(sfPriceDataSeries).size() ==
+                    series.size());
+
+                auto const beforeQuoteAssetName1 =
+                    sle->getFieldArray(sfPriceDataSeries)[0]
+                        .getFieldCurrency(sfQuoteAsset)
+                        .getText();
+                auto const beforeQuoteAssetName2 =
+                    sle->getFieldArray(sfPriceDataSeries)[1]
+                        .getFieldCurrency(sfQuoteAsset)
+                        .getText();
+
+                oracle.set(UpdateArg{.series = series, .fee = baseFee});
+                sle = env.le(keylet::oracle(owner, oracle.documentID()));
+
+                auto const afterQuoteAssetName1 =
+                    sle->getFieldArray(sfPriceDataSeries)[0]
+                        .getFieldCurrency(sfQuoteAsset)
+                        .getText();
+                auto const afterQuoteAssetName2 =
+                    sle->getFieldArray(sfPriceDataSeries)[1]
+                        .getFieldCurrency(sfQuoteAsset)
+                        .getText();
+
+                if (env.current()->rules().enabled(fixPriceOracleOrder))
+                {
+                    BEAST_EXPECT(afterQuoteAssetName1 == beforeQuoteAssetName1);
+                    BEAST_EXPECT(afterQuoteAssetName2 == beforeQuoteAssetName2);
+                }
+                else
+                {
+                    BEAST_EXPECT(afterQuoteAssetName1 != beforeQuoteAssetName1);
+                    BEAST_EXPECT(afterQuoteAssetName2 != beforeQuoteAssetName2);
+                }
+            };
+            test(env, {{"XRP", "USD", 742, 2}, {"XRP", "EUR", 711, 2}});
+        }
     }
 
     void

src/test/basics/TaggedCache_test.cpp

@@ -58,10 +58,10 @@ public:
         // Insert an item, retrieve it, and age it so it gets purged.
         {
             BEAST_EXPECT(c.getCacheSize() == 0);
-            BEAST_EXPECT(c.getTrackSize() == 0);
+            BEAST_EXPECT(c.size() == 0);
             BEAST_EXPECT(!c.insert(1, "one"));
             BEAST_EXPECT(c.getCacheSize() == 1);
-            BEAST_EXPECT(c.getTrackSize() == 1);
+            BEAST_EXPECT(c.size() == 1);
 
             {
                 std::string s;
@@ -72,7 +72,7 @@ public:
             ++clock;
             c.sweep();
             BEAST_EXPECT(c.getCacheSize() == 0);
-            BEAST_EXPECT(c.getTrackSize() == 0);
+            BEAST_EXPECT(c.size() == 0);
         }
 
         // Insert an item, maintain a strong pointer, age it, and
@@ -80,7 +80,7 @@ public:
         {
             BEAST_EXPECT(!c.insert(2, "two"));
             BEAST_EXPECT(c.getCacheSize() == 1);
-            BEAST_EXPECT(c.getTrackSize() == 1);
+            BEAST_EXPECT(c.size() == 1);
 
             {
                 auto p = c.fetch(2);
@@ -88,14 +88,14 @@ public:
                 ++clock;
                 c.sweep();
                 BEAST_EXPECT(c.getCacheSize() == 0);
-                BEAST_EXPECT(c.getTrackSize() == 1);
+                BEAST_EXPECT(c.size() == 1);
             }
 
             // Make sure its gone now that our reference is gone
             ++clock;
             c.sweep();
             BEAST_EXPECT(c.getCacheSize() == 0);
-            BEAST_EXPECT(c.getTrackSize() == 0);
+            BEAST_EXPECT(c.size() == 0);
         }
 
         // Insert the same key/value pair and make sure we get the same result
@@ -111,7 +111,7 @@ public:
             ++clock;
             c.sweep();
             BEAST_EXPECT(c.getCacheSize() == 0);
-            BEAST_EXPECT(c.getTrackSize() == 0);
+            BEAST_EXPECT(c.size() == 0);
         }
 
         // Put an object in but keep a strong pointer to it, advance the clock a
@@ -121,24 +121,24 @@ public:
             // Put an object in
             BEAST_EXPECT(!c.insert(4, "four"));
             BEAST_EXPECT(c.getCacheSize() == 1);
-            BEAST_EXPECT(c.getTrackSize() == 1);
+            BEAST_EXPECT(c.size() == 1);
 
             {
                 // Keep a strong pointer to it
                 auto const p1 = c.fetch(4);
                 BEAST_EXPECT(p1 != nullptr);
                 BEAST_EXPECT(c.getCacheSize() == 1);
-                BEAST_EXPECT(c.getTrackSize() == 1);
+                BEAST_EXPECT(c.size() == 1);
                 // Advance the clock a lot
                 ++clock;
                 c.sweep();
                 BEAST_EXPECT(c.getCacheSize() == 0);
-                BEAST_EXPECT(c.getTrackSize() == 1);
+                BEAST_EXPECT(c.size() == 1);
                 // Canonicalize a new object with the same key
                 auto p2 = std::make_shared<std::string>("four");
                 BEAST_EXPECT(c.canonicalize_replace_client(4, p2));
                 BEAST_EXPECT(c.getCacheSize() == 1);
-                BEAST_EXPECT(c.getTrackSize() == 1);
+                BEAST_EXPECT(c.size() == 1);
                 // Make sure we get the original object
                 BEAST_EXPECT(p1.get() == p2.get());
             }
@@ -146,7 +146,7 @@ public:
             ++clock;
             c.sweep();
             BEAST_EXPECT(c.getCacheSize() == 0);
-            BEAST_EXPECT(c.getTrackSize() == 0);
+            BEAST_EXPECT(c.size() == 0);
         }
     }
 };

src/test/beast/xxhasher_test.cpp

@@ -0,0 +1,201 @@
+//------------------------------------------------------------------------------
+/*
+This file is part of rippled: https://github.com/ripple/rippled
+Copyright (c) 2025 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.
+*/
+//==============================================================================
+
+#include <xrpl/beast/hash/xxhasher.h>
+#include <xrpl/beast/unit_test.h>
+
+namespace beast {
+
+class XXHasher_test : public unit_test::suite
+{
+public:
+    void
+    testWithoutSeed()
+    {
+        testcase("Without Seed");
+
+        xxhasher hasher{};
+
+        std::string objectToHash{"Hello, xxHash!"};
+        hasher(objectToHash.data(), objectToHash.size());
+
+        BEAST_EXPECT(
+            static_cast<xxhasher::result_type>(hasher) ==
+            16042857369214894119ULL);
+    }
+
+    void
+    testWithSeed()
+    {
+        testcase("With Seed");
+
+        xxhasher hasher{static_cast<std::uint32_t>(102)};
+
+        std::string objectToHash{"Hello, xxHash!"};
+        hasher(objectToHash.data(), objectToHash.size());
+
+        BEAST_EXPECT(
+            static_cast<xxhasher::result_type>(hasher) ==
+            14440132435660934800ULL);
+    }
+
+    void
+    testWithTwoSeeds()
+    {
+        testcase("With Two Seeds");
+        xxhasher hasher{
+            static_cast<std::uint32_t>(102), static_cast<std::uint32_t>(103)};
+
+        std::string objectToHash{"Hello, xxHash!"};
+        hasher(objectToHash.data(), objectToHash.size());
+
+        BEAST_EXPECT(
+            static_cast<xxhasher::result_type>(hasher) ==
+            14440132435660934800ULL);
+    }
+
+    void
+    testBigObjectWithMultiupleSmallUpdatesWithoutSeed()
+    {
+        testcase("Big Object With Multiuple Small Updates Without Seed");
+        xxhasher hasher{};
+
+        std::string objectToHash{"Hello, xxHash!"};
+        for (int i = 0; i < 100; i++)
+        {
+            hasher(objectToHash.data(), objectToHash.size());
+        }
+
+        BEAST_EXPECT(
+            static_cast<xxhasher::result_type>(hasher) ==
+            15296278154063476002ULL);
+    }
+
+    void
+    testBigObjectWithMultiupleSmallUpdatesWithSeed()
+    {
+        testcase("Big Object With Multiuple Small Updates With Seed");
+        xxhasher hasher{static_cast<std::uint32_t>(103)};
+
+        std::string objectToHash{"Hello, xxHash!"};
+        for (int i = 0; i < 100; i++)
+        {
+            hasher(objectToHash.data(), objectToHash.size());
+        }
+
+        BEAST_EXPECT(
+            static_cast<xxhasher::result_type>(hasher) ==
+            17285302196561698791ULL);
+    }
+
+    void
+    testBigObjectWithSmallAndBigUpdatesWithoutSeed()
+    {
+        testcase("Big Object With Small And Big Updates Without Seed");
+        xxhasher hasher{};
+
+        std::string objectToHash{"Hello, xxHash!"};
+        std::string bigObject;
+        for (int i = 0; i < 20; i++)
+        {
+            bigObject += "Hello, xxHash!";
+        }
+        hasher(objectToHash.data(), objectToHash.size());
+        hasher(bigObject.data(), bigObject.size());
+        hasher(objectToHash.data(), objectToHash.size());
+
+        BEAST_EXPECT(
+            static_cast<xxhasher::result_type>(hasher) ==
+            1865045178324729219ULL);
+    }
+
+    void
+    testBigObjectWithSmallAndBigUpdatesWithSeed()
+    {
+        testcase("Big Object With Small And Big Updates With Seed");
+        xxhasher hasher{static_cast<std::uint32_t>(103)};
+
+        std::string objectToHash{"Hello, xxHash!"};
+        std::string bigObject;
+        for (int i = 0; i < 20; i++)
+        {
+            bigObject += "Hello, xxHash!";
+        }
+        hasher(objectToHash.data(), objectToHash.size());
+        hasher(bigObject.data(), bigObject.size());
+        hasher(objectToHash.data(), objectToHash.size());
+
+        BEAST_EXPECT(
+            static_cast<xxhasher::result_type>(hasher) ==
+            16189862915636005281ULL);
+    }
+
+    void
+    testBigObjectWithOneUpdateWithoutSeed()
+    {
+        testcase("Big Object With One Update Without Seed");
+        xxhasher hasher{};
+
+        std::string objectToHash;
+        for (int i = 0; i < 100; i++)
+        {
+            objectToHash += "Hello, xxHash!";
+        }
+        hasher(objectToHash.data(), objectToHash.size());
+
+        BEAST_EXPECT(
+            static_cast<xxhasher::result_type>(hasher) ==
+            15296278154063476002ULL);
+    }
+
+    void
+    testBigObjectWithOneUpdateWithSeed()
+    {
+        testcase("Big Object With One Update With Seed");
+        xxhasher hasher{static_cast<std::uint32_t>(103)};
+
+        std::string objectToHash;
+        for (int i = 0; i < 100; i++)
+        {
+            objectToHash += "Hello, xxHash!";
+        }
+        hasher(objectToHash.data(), objectToHash.size());
+
+        BEAST_EXPECT(
+            static_cast<xxhasher::result_type>(hasher) ==
+            17285302196561698791ULL);
+    }
+
+    void
+    run() override
+    {
+        testWithoutSeed();
+        testWithSeed();
+        testWithTwoSeeds();
+        testBigObjectWithMultiupleSmallUpdatesWithoutSeed();
+        testBigObjectWithMultiupleSmallUpdatesWithSeed();
+        testBigObjectWithSmallAndBigUpdatesWithoutSeed();
+        testBigObjectWithSmallAndBigUpdatesWithSeed();
+        testBigObjectWithOneUpdateWithoutSeed();
+        testBigObjectWithOneUpdateWithSeed();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(XXHasher, beast_core, beast);
+}  // namespace beast

src/xrpld/app/ledger/LedgerHistory.cpp

@@ -63,8 +63,6 @@ LedgerHistory::insert(
         ledger->stateMap().getHash().isNonZero(),
         "ripple::LedgerHistory::insert : nonzero hash");
 
-    std::unique_lock sl(m_ledgers_by_hash.peekMutex());
-
     bool const alreadyHad = m_ledgers_by_hash.canonicalize_replace_cache(
         ledger->info().hash, ledger);
     if (validated)
@@ -76,7 +74,6 @@ LedgerHistory::insert(
 LedgerHash
 LedgerHistory::getLedgerHash(LedgerIndex index)
 {
-    std::unique_lock sl(m_ledgers_by_hash.peekMutex());
     if (auto it = mLedgersByIndex.find(index); it != mLedgersByIndex.end())
         return it->second;
     return {};
@@ -86,13 +83,11 @@ std::shared_ptr<Ledger const>
 LedgerHistory::getLedgerBySeq(LedgerIndex index)
 {
     {
-        std::unique_lock sl(m_ledgers_by_hash.peekMutex());
         auto it = mLedgersByIndex.find(index);
 
         if (it != mLedgersByIndex.end())
         {
             uint256 hash = it->second;
-            sl.unlock();
             return getLedgerByHash(hash);
         }
     }
@@ -108,7 +103,6 @@ LedgerHistory::getLedgerBySeq(LedgerIndex index)
 
     {
         // Add this ledger to the local tracking by index
-        std::unique_lock sl(m_ledgers_by_hash.peekMutex());
 
         XRPL_ASSERT(
             ret->isImmutable(),
@@ -458,8 +452,6 @@ LedgerHistory::builtLedger(
     XRPL_ASSERT(
         !hash.isZero(), "ripple::LedgerHistory::builtLedger : nonzero hash");
 
-    std::unique_lock sl(m_consensus_validated.peekMutex());
-
     auto entry = std::make_shared<cv_entry>();
     m_consensus_validated.canonicalize_replace_client(index, entry);
 
@@ -500,8 +492,6 @@ LedgerHistory::validatedLedger(
         !hash.isZero(),
         "ripple::LedgerHistory::validatedLedger : nonzero hash");
 
-    std::unique_lock sl(m_consensus_validated.peekMutex());
-
     auto entry = std::make_shared<cv_entry>();
     m_consensus_validated.canonicalize_replace_client(index, entry);
 
@@ -535,10 +525,9 @@ LedgerHistory::validatedLedger(
 bool
 LedgerHistory::fixIndex(LedgerIndex ledgerIndex, LedgerHash const& ledgerHash)
 {
-    std::unique_lock sl(m_ledgers_by_hash.peekMutex());
+    auto ledger = m_ledgers_by_hash.fetch(ledgerHash);
     auto it = mLedgersByIndex.find(ledgerIndex);
-
+    if (ledger && (it != mLedgersByIndex.end()) && (it->second != ledgerHash))
-    if ((it != mLedgersByIndex.end()) && (it->second != ledgerHash))
     {
         it->second = ledgerHash;
         return false;

src/xrpld/app/tx/detail/MPTokenAuthorize.cpp

@@ -175,126 +175,18 @@ MPTokenAuthorize::createMPToken(
     return tesSUCCESS;
 }
 
-TER
-MPTokenAuthorize::authorize(
-    ApplyView& view,
-    beast::Journal journal,
-    MPTAuthorizeArgs const& args)
-{
-    auto const sleAcct = view.peek(keylet::account(args.account));
-    if (!sleAcct)
-        return tecINTERNAL;
-
-    // If the account that submitted the tx is a holder
-    // Note: `account_` is holder's account
-    //       `holderID` is NOT used
-    if (!args.holderID)
-    {
-        // When a holder wants to unauthorize/delete a MPT, the ledger must
-        //      - delete mptokenKey from owner directory
-        //      - delete the MPToken
-        if (args.flags & tfMPTUnauthorize)
-        {
-            auto const mptokenKey =
-                keylet::mptoken(args.mptIssuanceID, args.account);
-            auto const sleMpt = view.peek(mptokenKey);
-            if (!sleMpt || (*sleMpt)[sfMPTAmount] != 0)
-                return tecINTERNAL;  // LCOV_EXCL_LINE
-
-            if (!view.dirRemove(
-                    keylet::ownerDir(args.account),
-                    (*sleMpt)[sfOwnerNode],
-                    sleMpt->key(),
-                    false))
-                return tecINTERNAL;  // LCOV_EXCL_LINE
-
-            adjustOwnerCount(view, sleAcct, -1, journal);
-
-            view.erase(sleMpt);
-            return tesSUCCESS;
-        }
-
-        // A potential holder wants to authorize/hold a mpt, the ledger must:
-        //      - add the new mptokenKey to the owner directory
-        //      - create the MPToken object for the holder
-
-        // The reserve that is required to create the MPToken. Note
-        // that although the reserve increases with every item
-        // an account owns, in the case of MPTokens we only
-        // *enforce* a reserve if the user owns more than two
-        // items. This is similar to the reserve requirements of trust lines.
-        std::uint32_t const uOwnerCount = sleAcct->getFieldU32(sfOwnerCount);
-        XRPAmount const reserveCreate(
-            (uOwnerCount < 2) ? XRPAmount(beast::zero)
-                              : view.fees().accountReserve(uOwnerCount + 1));
-
-        if (args.priorBalance < reserveCreate)
-            return tecINSUFFICIENT_RESERVE;
-
-        auto const mptokenKey =
-            keylet::mptoken(args.mptIssuanceID, args.account);
-        auto mptoken = std::make_shared<SLE>(mptokenKey);
-        if (auto ter = dirLink(view, args.account, mptoken))
-            return ter;  // LCOV_EXCL_LINE
-
-        (*mptoken)[sfAccount] = args.account;
-        (*mptoken)[sfMPTokenIssuanceID] = args.mptIssuanceID;
-        (*mptoken)[sfFlags] = 0;
-        view.insert(mptoken);
-
-        // Update owner count.
-        adjustOwnerCount(view, sleAcct, 1, journal);
-
-        return tesSUCCESS;
-    }
-
-    auto const sleMptIssuance =
-        view.read(keylet::mptIssuance(args.mptIssuanceID));
-    if (!sleMptIssuance)
-        return tecINTERNAL;
-
-    // If the account that submitted this tx is the issuer of the MPT
-    // Note: `account_` is issuer's account
-    //       `holderID` is holder's account
-    if (args.account != (*sleMptIssuance)[sfIssuer])
-        return tecINTERNAL;
-
-    auto const sleMpt =
-        view.peek(keylet::mptoken(args.mptIssuanceID, *args.holderID));
-    if (!sleMpt)
-        return tecINTERNAL;
-
-    std::uint32_t const flagsIn = sleMpt->getFieldU32(sfFlags);
-    std::uint32_t flagsOut = flagsIn;
-
-    // Issuer wants to unauthorize the holder, unset lsfMPTAuthorized on
-    // their MPToken
-    if (args.flags & tfMPTUnauthorize)
-        flagsOut &= ~lsfMPTAuthorized;
-    // Issuer wants to authorize a holder, set lsfMPTAuthorized on their
-    // MPToken
-    else
-        flagsOut |= lsfMPTAuthorized;
-
-    if (flagsIn != flagsOut)
-        sleMpt->setFieldU32(sfFlags, flagsOut);
-
-    view.update(sleMpt);
-    return tesSUCCESS;
-}
-
 TER
 MPTokenAuthorize::doApply()
 {
     auto const& tx = ctx_.tx;
-    return authorize(
+    return authorizeMPToken(
         ctx_.view(),
+        mPriorBalance,
+        tx[sfMPTokenIssuanceID],
+        account_,
         ctx_.journal,
-        {.priorBalance = mPriorBalance,
+        tx.getFlags(),
-         .mptIssuanceID = tx[sfMPTokenIssuanceID],
+        tx[~sfHolder]);
-         .account = account_,
-         .flags = tx.getFlags(),
-         .holderID = tx[~sfHolder]});
 }
 
 }  // namespace ripple

src/xrpld/app/tx/detail/MPTokenAuthorize.h

@@ -48,12 +48,6 @@ public:
     static TER
     preclaim(PreclaimContext const& ctx);
 
-    static TER
-    authorize(
-        ApplyView& view,
-        beast::Journal journal,
-        MPTAuthorizeArgs const& args);
-
     static TER
     createMPToken(
         ApplyView& view,

src/xrpld/app/tx/detail/SetOracle.cpp

@@ -209,6 +209,17 @@ SetOracle::doApply()
 {
     auto const oracleID = keylet::oracle(account_, ctx_.tx[sfOracleDocumentID]);
 
+    auto populatePriceData = [](STObject& priceData, STObject const& entry) {
+        setPriceDataInnerObjTemplate(priceData);
+        priceData.setFieldCurrency(
+            sfBaseAsset, entry.getFieldCurrency(sfBaseAsset));
+        priceData.setFieldCurrency(
+            sfQuoteAsset, entry.getFieldCurrency(sfQuoteAsset));
+        priceData.setFieldU64(sfAssetPrice, entry.getFieldU64(sfAssetPrice));
+        if (entry.isFieldPresent(sfScale))
+            priceData.setFieldU8(sfScale, entry.getFieldU8(sfScale));
+    };
+
     if (auto sle = ctx_.view().peek(oracleID))
     {
         // update
@@ -249,15 +260,7 @@ SetOracle::doApply()
             {
                 // add a token pair with the price
                 STObject priceData{sfPriceData};
-                setPriceDataInnerObjTemplate(priceData);
+                populatePriceData(priceData, entry);
-                priceData.setFieldCurrency(
-                    sfBaseAsset, entry.getFieldCurrency(sfBaseAsset));
-                priceData.setFieldCurrency(
-                    sfQuoteAsset, entry.getFieldCurrency(sfQuoteAsset));
-                priceData.setFieldU64(
-                    sfAssetPrice, entry.getFieldU64(sfAssetPrice));
-                if (entry.isFieldPresent(sfScale))
-                    priceData.setFieldU8(sfScale, entry.getFieldU8(sfScale));
                 pairs.emplace(key, std::move(priceData));
             }
         }
@@ -285,7 +288,26 @@ SetOracle::doApply()
         sle->setFieldVL(sfProvider, ctx_.tx[sfProvider]);
         if (ctx_.tx.isFieldPresent(sfURI))
             sle->setFieldVL(sfURI, ctx_.tx[sfURI]);
-        auto const& series = ctx_.tx.getFieldArray(sfPriceDataSeries);
+
+        STArray series;
+        if (!ctx_.view().rules().enabled(fixPriceOracleOrder))
+        {
+            series = ctx_.tx.getFieldArray(sfPriceDataSeries);
+        }
+        else
+        {
+            std::map<std::pair<Currency, Currency>, STObject> pairs;
+            for (auto const& entry : ctx_.tx.getFieldArray(sfPriceDataSeries))
+            {
+                auto const key = tokenPairKey(entry);
+                STObject priceData{sfPriceData};
+                populatePriceData(priceData, entry);
+                pairs.emplace(key, std::move(priceData));
+            }
+            for (auto const& iter : pairs)
+                series.push_back(std::move(iter.second));
+        }
+
         sle->setFieldArray(sfPriceDataSeries, series);
         sle->setFieldVL(sfAssetClass, ctx_.tx[sfAssetClass]);
         sle->setFieldU32(sfLastUpdateTime, ctx_.tx[sfLastUpdateTime]);

src/xrpld/app/tx/detail/VaultDeposit.cpp

@@ -210,12 +210,12 @@ VaultDeposit::doApply()
         auto sleMpt = view().read(keylet::mptoken(mptIssuanceID, account_));
         if (!sleMpt)
         {
-            if (auto const err = MPTokenAuthorize::authorize(
+            if (auto const err = authorizeMPToken(
                     view(),
-                    ctx_.journal,
+                    mPriorBalance,
-                    {.priorBalance = mPriorBalance,
+                    mptIssuanceID->value(),
-                     .mptIssuanceID = mptIssuanceID->value(),
+                    account_,
-                     .account = account_});
+                    ctx_.journal);
                 !isTesSuccess(err))
                 return err;
         }
@@ -223,15 +223,15 @@ VaultDeposit::doApply()
         // If the vault is private, set the authorized flag for the vault owner
         if (vault->isFlag(tfVaultPrivate))
         {
-            if (auto const err = MPTokenAuthorize::authorize(
+            if (auto const err = authorizeMPToken(
                     view(),
+                    mPriorBalance,              // priorBalance
+                    mptIssuanceID->value(),     // mptIssuanceID
+                    sleIssuance->at(sfIssuer),  // account
                     ctx_.journal,
-                    {
+                    {},       // flags
-                        .priorBalance = mPriorBalance,
+                    account_  // holderID
-                        .mptIssuanceID = mptIssuanceID->value(),
+                );
-                        .account = sleIssuance->at(sfIssuer),
-                        .holderID = account_,
-                    });
                 !isTesSuccess(err))
                 return err;
         }

src/xrpld/ledger/View.h

@@ -600,6 +600,16 @@ addEmptyHolding(
         asset.value());
 }
 
+[[nodiscard]] TER
+authorizeMPToken(
+    ApplyView& view,
+    XRPAmount const& priorBalance,
+    MPTID const& mptIssuanceID,
+    AccountID const& account,
+    beast::Journal journal,
+    std::uint32_t flags = 0,
+    std::optional<AccountID> holderID = std::nullopt);
+
 // VFALCO NOTE Both STAmount parameters should just
 //             be "Amount", a unit-less number.
 //

src/xrpld/ledger/detail/View.cpp

@@ -18,7 +18,6 @@
 //==============================================================================
 
 #include <xrpld/app/misc/CredentialHelpers.h>
-#include <xrpld/app/tx/detail/MPTokenAuthorize.h>
 #include <xrpld/ledger/ReadView.h>
 #include <xrpld/ledger/View.h>
 
@@ -1215,12 +1214,115 @@ addEmptyHolding(
     if (view.peek(keylet::mptoken(mptID, accountID)))
         return tecDUPLICATE;
 
-    return MPTokenAuthorize::authorize(
+    return authorizeMPToken(view, priorBalance, mptID, accountID, journal);
-        view,
+}
-        journal,
+
-        {.priorBalance = priorBalance,
+[[nodiscard]] TER
-         .mptIssuanceID = mptID,
+authorizeMPToken(
-         .account = accountID});
+    ApplyView& view,
+    XRPAmount const& priorBalance,
+    MPTID const& mptIssuanceID,
+    AccountID const& account,
+    beast::Journal journal,
+    std::uint32_t flags,
+    std::optional<AccountID> holderID)
+{
+    auto const sleAcct = view.peek(keylet::account(account));
+    if (!sleAcct)
+        return tecINTERNAL;
+
+    // If the account that submitted the tx is a holder
+    // Note: `account_` is holder's account
+    //       `holderID` is NOT used
+    if (!holderID)
+    {
+        // When a holder wants to unauthorize/delete a MPT, the ledger must
+        //      - delete mptokenKey from owner directory
+        //      - delete the MPToken
+        if (flags & tfMPTUnauthorize)
+        {
+            auto const mptokenKey = keylet::mptoken(mptIssuanceID, account);
+            auto const sleMpt = view.peek(mptokenKey);
+            if (!sleMpt || (*sleMpt)[sfMPTAmount] != 0)
+                return tecINTERNAL;  // LCOV_EXCL_LINE
+
+            if (!view.dirRemove(
+                    keylet::ownerDir(account),
+                    (*sleMpt)[sfOwnerNode],
+                    sleMpt->key(),
+                    false))
+                return tecINTERNAL;  // LCOV_EXCL_LINE
+
+            adjustOwnerCount(view, sleAcct, -1, journal);
+
+            view.erase(sleMpt);
+            return tesSUCCESS;
+        }
+
+        // A potential holder wants to authorize/hold a mpt, the ledger must:
+        //      - add the new mptokenKey to the owner directory
+        //      - create the MPToken object for the holder
+
+        // The reserve that is required to create the MPToken. Note
+        // that although the reserve increases with every item
+        // an account owns, in the case of MPTokens we only
+        // *enforce* a reserve if the user owns more than two
+        // items. This is similar to the reserve requirements of trust lines.
+        std::uint32_t const uOwnerCount = sleAcct->getFieldU32(sfOwnerCount);
+        XRPAmount const reserveCreate(
+            (uOwnerCount < 2) ? XRPAmount(beast::zero)
+                              : view.fees().accountReserve(uOwnerCount + 1));
+
+        if (priorBalance < reserveCreate)
+            return tecINSUFFICIENT_RESERVE;
+
+        auto const mptokenKey = keylet::mptoken(mptIssuanceID, account);
+        auto mptoken = std::make_shared<SLE>(mptokenKey);
+        if (auto ter = dirLink(view, account, mptoken))
+            return ter;  // LCOV_EXCL_LINE
+
+        (*mptoken)[sfAccount] = account;
+        (*mptoken)[sfMPTokenIssuanceID] = mptIssuanceID;
+        (*mptoken)[sfFlags] = 0;
+        view.insert(mptoken);
+
+        // Update owner count.
+        adjustOwnerCount(view, sleAcct, 1, journal);
+
+        return tesSUCCESS;
+    }
+
+    auto const sleMptIssuance = view.read(keylet::mptIssuance(mptIssuanceID));
+    if (!sleMptIssuance)
+        return tecINTERNAL;
+
+    // If the account that submitted this tx is the issuer of the MPT
+    // Note: `account_` is issuer's account
+    //       `holderID` is holder's account
+    if (account != (*sleMptIssuance)[sfIssuer])
+        return tecINTERNAL;
+
+    auto const sleMpt = view.peek(keylet::mptoken(mptIssuanceID, *holderID));
+    if (!sleMpt)
+        return tecINTERNAL;
+
+    std::uint32_t const flagsIn = sleMpt->getFieldU32(sfFlags);
+    std::uint32_t flagsOut = flagsIn;
+
+    // Issuer wants to unauthorize the holder, unset lsfMPTAuthorized on
+    // their MPToken
+    if (flags & tfMPTUnauthorize)
+        flagsOut &= ~lsfMPTAuthorized;
+    // Issuer wants to authorize a holder, set lsfMPTAuthorized on their
+    // MPToken
+    else
+        flagsOut |= lsfMPTAuthorized;
+
+    if (flagsIn != flagsOut)
+        sleMpt->setFieldU32(sfFlags, flagsOut);
+
+    view.update(sleMpt);
+    return tesSUCCESS;
 }
 
 TER
@@ -1418,13 +1520,14 @@ removeEmptyHolding(
     if (mptoken->at(sfMPTAmount) != 0)
         return tecHAS_OBLIGATIONS;
 
-    return MPTokenAuthorize::authorize(
+    return authorizeMPToken(
         view,
+        {},  // priorBalance
+        mptID,
+        accountID,
         journal,
-        {.priorBalance = {},
+        tfMPTUnauthorize  // flags
-         .mptIssuanceID = mptID,
+    );
-         .account = accountID,
-         .flags = tfMPTUnauthorize});
 }
 
 TER
@@ -2497,15 +2600,12 @@ enforceMPTokenAuthorization(
         XRPL_ASSERT(
             maybeDomainID.has_value() && sleToken == nullptr,
             "ripple::enforceMPTokenAuthorization : new MPToken for domain");
-        if (auto const err = MPTokenAuthorize::authorize(
+        if (auto const err = authorizeMPToken(
                 view,
-                j,
+                priorBalance,   // priorBalance
-                {
+                mptIssuanceID,  // mptIssuanceID
-                    .priorBalance = priorBalance,
+                account,        // account
-                    .mptIssuanceID = mptIssuanceID,
+                j);
-                    .account = account,
-                    .flags = 0,
-                });
             !isTesSuccess(err))
             return err;
 

src/xrpld/rpc/handlers/GetCounts.cpp

@@ -114,7 +114,7 @@ getCountsJson(Application& app, int minObjectCount)
     ret[jss::treenode_cache_size] =
         app.getNodeFamily().getTreeNodeCache()->getCacheSize();
     ret[jss::treenode_track_size] =
-        app.getNodeFamily().getTreeNodeCache()->getTrackSize();
+        static_cast<int>(app.getNodeFamily().getTreeNodeCache()->size());
 
     std::string uptime;
     auto s = UptimeClock::now();