rippled/external/wasmi/patches/0001-xrplf-0.42.1.patch

diff --git a/crates/c_api/CMakeLists.txt b/crates/c_api/CMakeLists.txt
index b15c787a..54eaed2d 100644
--- a/crates/c_api/CMakeLists.txt
+++ b/crates/c_api/CMakeLists.txt
@@ -6,6 +6,8 @@ option(BUILD_SHARED_LIBS "Build using shared libraries" OFF)
 option(WASMI_ALWAYS_BUILD "If cmake should always invoke cargo to build Wasmi" ON)
 set(WASMI_TARGET "" CACHE STRING "Rust target to build for")
 
+add_compile_definitions(COMPILING_WASM_RUNTIME_API=1)
+
 if(NOT WASMI_TARGET)
     execute_process(
         COMMAND rustc -vV
@@ -43,6 +45,10 @@ endif()
 list(TRANSFORM WASMI_SHARED_FILES PREPEND ${WASMI_TARGET_DIR}/)
 list(TRANSFORM WASMI_STATIC_FILES PREPEND ${WASMI_TARGET_DIR}/)
 
+if(NOT BUILD_SHARED_LIBS)
+  set(WASMI_SHARED_FILES)
+endif()
+
 # Instructions on how to build and install the Wasmi Rust crate.
 find_program(WASMI_CARGO_BINARY cargo REQUIRED)
 include(ExternalProject)
@@ -79,7 +85,6 @@ else()
     target_link_libraries(wasmi INTERFACE ${WASMI_STATIC_FILES})
 
     if(WASMI_TARGET MATCHES "windows")
-        target_compile_options(wasmi INTERFACE -DWASM_API_EXTERN= -DWASI_API_EXTERN=)
         target_link_libraries(wasmi INTERFACE ws2_32 advapi32 userenv ntdll shell32 ole32 bcrypt)
     elseif(NOT WASMI_TARGET MATCHES "darwin")
         target_link_libraries(wasmi INTERFACE pthread dl m)
@@ -112,6 +117,7 @@ install(
     DESTINATION ${CMAKE_INSTALL_LIBDIR}
 )
 
+if(BUILD_SHARED_LIBS)
 if(WASMI_TARGET MATCHES "darwin")
     set(INSTALLED_LIB "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/libwasmi.dylib")
     install(
@@ -131,6 +137,7 @@ if(WASMI_TARGET MATCHES "darwin")
         install(CODE "execute_process(COMMAND ${install_name_tool_cmd})")
     endif()
 endif()
+endif()
 
 # Documentation Generation via Doxygen:
 set(DOXYGEN_CONF_IN ${CMAKE_CURRENT_SOURCE_DIR}/doxygen.conf.in)
@@ -141,19 +148,3 @@ add_custom_target(doc
     DEPENDS ${WASMI_GENERATED_CONF_H} ${DOXYGEN_CONF_OUT}
     WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 )
-
-# C-Header Formatting via clang-format:
-find_program(CLANG_FORMAT clang-format REQUIRED)
-file(GLOB_RECURSE HEADER_FILES
-    ${CMAKE_CURRENT_SOURCE_DIR}/include/wasmi.h
-    ${CMAKE_CURRENT_SOURCE_DIR}/include/wasmi/*.h
-    ${CMAKE_CURRENT_SOURCE_DIR}/include/wasmi/*.hh
-)
-add_custom_target(check-format
-    COMMAND ${CLANG_FORMAT} -style=llvm -Werror --dry-run ${HEADER_FILES}
-    COMMENT "clang-format: Check formatting for Wasmi C-API header files"
-)
-add_custom_target(format
-    COMMAND ${CLANG_FORMAT} -style=llvm -i ${HEADER_FILES}
-    COMMENT "clang-format: Apply formatting rules for Wasmi C-API header files"
-)
diff --git a/crates/c_api/include/wasm.h b/crates/c_api/include/wasm.h
index 5ee617ff..5c79bde3 100644
--- a/crates/c_api/include/wasm.h
+++ b/crates/c_api/include/wasm.h
@@ -13,11 +13,17 @@
 #include <assert.h>
 
 #ifndef WASM_API_EXTERN
-#if defined(_WIN32) && !defined(__MINGW32__) && !defined(LIBWASM_STATIC)
+#if defined(_MSC_BUILD)
+#if defined(COMPILING_WASM_RUNTIME_API)
+#define WASM_API_EXTERN __declspec(dllexport)
+#elif defined(_DLL)
 #define WASM_API_EXTERN __declspec(dllimport)
 #else
 #define WASM_API_EXTERN
 #endif
+#else
+#define WASM_API_EXTERN
+#endif
 #endif
 
 #ifdef __cplusplus
@@ -146,6 +152,11 @@ WASM_DECLARE_OWN(store)
 
 WASM_API_EXTERN own wasm_store_t* wasm_store_new(wasm_engine_t*);
 
+// Store fuel functions (forward declarations)
+struct wasmi_error;
+
+WASM_API_EXTERN struct wasmi_error* wasm_store_get_fuel(const wasm_store_t*, uint64_t* fuel);
+WASM_API_EXTERN struct wasmi_error* wasm_store_set_fuel(wasm_store_t*, uint64_t fuel);
 
 ///////////////////////////////////////////////////////////////////////////////
 // Type Representations
diff --git a/crates/c_api/include/wasmi.h b/crates/c_api/include/wasmi.h
index 2caffa37..0c0584ec 100644
--- a/crates/c_api/include/wasmi.h
+++ b/crates/c_api/include/wasmi.h
@@ -10,7 +10,7 @@
 /**
  * \brief Wasmi version string.
  */
-#define WASMI_VERSION "0.35.0"
+#define WASMI_VERSION "0.42.1"
 /**
  * \brief Wasmi major version number.
  */
@@ -18,10 +18,10 @@
 /**
  * \brief Wasmi minor version number.
  */
-#define WASMI_VERSION_MINOR 35
+#define WASMI_VERSION_MINOR 42
 /**
  * \brief Wasmi patch version number.
  */
-#define WASMI_VERSION_PATCH 0
+#define WASMI_VERSION_PATCH 1
 
 #endif // WASMI_H
diff --git a/crates/c_api/src/store.rs b/crates/c_api/src/store.rs
index 56d4898f..543dbff8 100644
--- a/crates/c_api/src/store.rs
+++ b/crates/c_api/src/store.rs
@@ -175,3 +175,44 @@ pub extern "C" fn wasmi_context_set_fuel(
 ) -> Option<Box<wasmi_error_t>> {
     crate::handle_result(store.set_fuel(fuel), |()| {})
 }
+
+////////////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////////////
+
+/// Returns the current fuel of the wasm store context in `fuel`.
+///
+/// Wraps [`Store::get_fuel`].
+///
+/// # Errors
+///
+/// If [`Store::get_fuel`] errors.
+#[no_mangle]
+pub extern "C" fn wasm_store_get_fuel(
+    store: &wasm_store_t,
+    fuel: &mut u64,
+) -> Option<Box<wasmi_error_t>> {
+    let context = unsafe { store.inner.context() };
+    crate::handle_result(context.get_fuel(), |amt| {
+        *fuel = amt;
+    })
+}
+
+/// Sets the current fuel of the wasm store context to `fuel`.
+///
+/// Wraps [`Store::set_fuel`].
+///
+/// # Errors
+///
+/// If [`Store::set_fuel`] errors.
+#[no_mangle]
+pub extern "C" fn wasm_store_set_fuel(
+    store: &mut wasm_store_t,
+    fuel: u64,
+) -> Option<Box<wasmi_error_t>> {
+
+    let mut context = unsafe { store.inner.context_mut() };
+    crate::handle_result(context.set_fuel(fuel), |()| {})
+}
+