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Add dart api bridge

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This commit is contained in:
problematicconsumer
2023-08-28 13:05:10 +03:30
parent ba2b57e9dc
commit c7fae3d09b
12 changed files with 5580 additions and 0 deletions
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35
bridge/bridge.go Normal file
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package bridge
// #include "stdint.h"
// #include "include/dart_api_dl.c"
//
// // Go does not allow calling C function pointers directly. So we are
// // forced to provide a trampoline.
// bool GoDart_PostCObject(Dart_Port_DL port, Dart_CObject* obj) {
// return Dart_PostCObject_DL(port, obj);
// }
import "C"
import (
"fmt"
"unsafe"
)
func InitializeDartApi(api unsafe.Pointer) {
if C.Dart_InitializeApiDL(api) != 0 {
panic("failed to initialize Dart DL C API: version mismatch. " +
"must update include/ to match Dart SDK version")
}
}
func SendStringToPort(port int64, msg string) {
var obj C.Dart_CObject
obj._type = C.Dart_CObject_kString
msg_obj := C.CString(msg) // go string -> char*s
// union type, we do a force conversion
ptr := unsafe.Pointer(&obj.value[0])
*(**C.char)(ptr) = msg_obj
ret := C.GoDart_PostCObject(C.Dart_Port_DL(port), &obj)
if !ret {
fmt.Println("ERROR: post to port ", port, " failed", msg)
}
}

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# Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
# for details. All rights reserved. Use of this source code is governed by a
# BSD-style license that can be found in the LICENSE file.
import("../../sdk_args.gni")
# This rule copies header files to include/
copy("copy_headers") {
visibility = [ "../../sdk:copy_headers" ]
sources = [
"dart_api.h",
"dart_api_dl.c",
"dart_api_dl.h",
"dart_native_api.h",
"dart_tools_api.h",
"dart_version.h",
"internal/dart_api_dl_impl.h",
]
outputs =
[ "$root_out_dir/$dart_sdk_output/include/{{source_target_relative}}" ]
}

30
bridge/include/analyze_snapshot_api.h Normal file
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/*
* Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
* for details. All rights reserved. Use of this source code is governed by a
* BSD-style license that can be found in the LICENSE file.
*/
#ifndef RUNTIME_INCLUDE_ANALYZE_SNAPSHOT_API_H_
#define RUNTIME_INCLUDE_ANALYZE_SNAPSHOT_API_H_
#include <stdint.h>
#include <optional>
namespace dart {
namespace snapshot_analyzer {
typedef struct {
const uint8_t* vm_snapshot_data;
const uint8_t* vm_snapshot_instructions;
const uint8_t* vm_isolate_data;
const uint8_t* vm_isolate_instructions;
} Dart_SnapshotAnalyzerInformation;
void Dart_DumpSnapshotInformationAsJson(
const Dart_SnapshotAnalyzerInformation& info,
char** buffer,
intptr_t* buffer_length);
} // namespace snapshot_analyzer
} // namespace dart
#endif // RUNTIME_INCLUDE_ANALYZE_SNAPSHOT_API_H_

69
bridge/include/bin/dart_io_api.h Normal file
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// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#ifndef RUNTIME_INCLUDE_BIN_DART_IO_API_H_
#define RUNTIME_INCLUDE_BIN_DART_IO_API_H_
#include "dart_tools_api.h"
namespace dart {
namespace bin {
// Bootstraps 'dart:io'.
void BootstrapDartIo();
// Cleans up 'dart:io'.
void CleanupDartIo();
// Lets dart:io know where the system temporary directory is located.
// Currently only wired up on Android.
void SetSystemTempDirectory(const char* system_temp);
// Tells the system whether to capture Stdout events.
void SetCaptureStdout(bool value);
// Tells the system whether to capture Stderr events.
void SetCaptureStderr(bool value);
// Should Stdout events be captured?
bool ShouldCaptureStdout();
// Should Stderr events be captured?
bool ShouldCaptureStderr();
// Set the executable name used by Platform.executable.
void SetExecutableName(const char* executable_name);
// Set the arguments used by Platform.executableArguments.
void SetExecutableArguments(int script_index, char** argv);
// Set dart:io implementation specific fields of Dart_EmbedderInformation.
void GetIOEmbedderInformation(Dart_EmbedderInformation* info);
// Appropriate to assign to Dart_InitializeParams.file_open/read/write/close.
void* OpenFile(const char* name, bool write);
void ReadFile(uint8_t** data, intptr_t* file_len, void* stream);
void WriteFile(const void* buffer, intptr_t num_bytes, void* stream);
void CloseFile(void* stream);
// Generates 'length' random bytes into 'buffer'. Returns true on success
// and false on failure. This is appropriate to assign to
// Dart_InitializeParams.entropy_source.
bool GetEntropy(uint8_t* buffer, intptr_t length);
// Performs a lookup of the I/O Dart_NativeFunction with a specified 'name' and
// 'argument_count'. Returns NULL if no I/O native function with a matching
// name and parameter count is found.
Dart_NativeFunction LookupIONative(Dart_Handle name,
int argument_count,
bool* auto_setup_scope);
// Returns the symbol for I/O native function 'nf'. Returns NULL if 'nf' is not
// a valid I/O native function.
const uint8_t* LookupIONativeSymbol(Dart_NativeFunction nf);
} // namespace bin
} // namespace dart
#endif // RUNTIME_INCLUDE_BIN_DART_IO_API_H_

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bridge/include/dart_api_dl.c Normal file
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/*
* Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
* for details. All rights reserved. Use of this source code is governed by a
* BSD-style license that can be found in the LICENSE file.
*/
#include "dart_api_dl.h" /* NOLINT */
#include "dart_version.h" /* NOLINT */
#include "internal/dart_api_dl_impl.h" /* NOLINT */
#include <stdio.h>
#include <string.h>
#define DART_API_DL_DEFINITIONS(name, R, A) name##_Type name##_DL = NULL;
DART_API_ALL_DL_SYMBOLS(DART_API_DL_DEFINITIONS)
DART_API_DEPRECATED_DL_SYMBOLS(DART_API_DL_DEFINITIONS)
#undef DART_API_DL_DEFINITIONS
typedef void* DartApiEntry_function;
DartApiEntry_function FindFunctionPointer(const DartApiEntry* entries,
const char* name) {
while (entries->name != NULL) {
if (strcmp(entries->name, name) == 0) return entries->function;
entries++;
}
return NULL;
}
DART_EXPORT void Dart_UpdateExternalSize_Deprecated(
Dart_WeakPersistentHandle object, intptr_t external_size) {
printf("Dart_UpdateExternalSize is a nop, it has been deprecated\n");
}
DART_EXPORT void Dart_UpdateFinalizableExternalSize_Deprecated(
Dart_FinalizableHandle object,
Dart_Handle strong_ref_to_object,
intptr_t external_allocation_size) {
printf("Dart_UpdateFinalizableExternalSize is a nop, "
"it has been deprecated\n");
}
intptr_t Dart_InitializeApiDL(void* data) {
DartApi* dart_api_data = (DartApi*)data;
if (dart_api_data->major != DART_API_DL_MAJOR_VERSION) {
// If the DartVM we're running on does not have the same version as this
// file was compiled against, refuse to initialize. The symbols are not
// compatible.
return -1;
}
// Minor versions are allowed to be different.
// If the DartVM has a higher minor version, it will provide more symbols
// than we initialize here.
// If the DartVM has a lower minor version, it will not provide all symbols.
// In that case, we leave the missing symbols un-initialized. Those symbols
// should not be used by the Dart and native code. The client is responsible
// for checking the minor version number himself based on which symbols it
// is using.
// (If we would error out on this case, recompiling native code against a
// newer SDK would break all uses on older SDKs, which is too strict.)
const DartApiEntry* dart_api_function_pointers = dart_api_data->functions;
#define DART_API_DL_INIT(name, R, A) \
name##_DL = \
(name##_Type)(FindFunctionPointer(dart_api_function_pointers, #name));
DART_API_ALL_DL_SYMBOLS(DART_API_DL_INIT)
#undef DART_API_DL_INIT
#define DART_API_DEPRECATED_DL_INIT(name, R, A) \
name##_DL = name##_Deprecated;
DART_API_DEPRECATED_DL_SYMBOLS(DART_API_DEPRECATED_DL_INIT)
#undef DART_API_DEPRECATED_DL_INIT
return 0;
}

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bridge/include/dart_api_dl.h Normal file
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/*
* Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
* for details. All rights reserved. Use of this source code is governed by a
* BSD-style license that can be found in the LICENSE file.
*/
#ifndef RUNTIME_INCLUDE_DART_API_DL_H_
#define RUNTIME_INCLUDE_DART_API_DL_H_
#include "dart_api.h" /* NOLINT */
#include "dart_native_api.h" /* NOLINT */
/** \mainpage Dynamically Linked Dart API
*
* This exposes a subset of symbols from dart_api.h and dart_native_api.h
* available in every Dart embedder through dynamic linking.
*
* All symbols are postfixed with _DL to indicate that they are dynamically
* linked and to prevent conflicts with the original symbol.
*
* Link `dart_api_dl.c` file into your library and invoke
* `Dart_InitializeApiDL` with `NativeApi.initializeApiDLData`.
*/
DART_EXPORT intptr_t Dart_InitializeApiDL(void* data);
// ============================================================================
// IMPORTANT! Never update these signatures without properly updating
// DART_API_DL_MAJOR_VERSION and DART_API_DL_MINOR_VERSION.
//
// Verbatim copy of `dart_native_api.h` and `dart_api.h` symbol names and types
// to trigger compile-time errors if the symbols in those files are updated
// without updating these.
//
// Function return and argument types, and typedefs are carbon copied. Structs
// are typechecked nominally in C/C++, so they are not copied, instead a
// comment is added to their definition.
typedef int64_t Dart_Port_DL;
typedef void (*Dart_NativeMessageHandler_DL)(Dart_Port_DL dest_port_id,
Dart_CObject* message);
// dart_native_api.h symbols can be called on any thread.
#define DART_NATIVE_API_DL_SYMBOLS(F) \
/***** dart_native_api.h *****/ \
/* Dart_Port */ \
F(Dart_PostCObject, bool, (Dart_Port_DL port_id, Dart_CObject * message)) \
F(Dart_PostInteger, bool, (Dart_Port_DL port_id, int64_t message)) \
F(Dart_NewNativePort, Dart_Port_DL, \
(const char* name, Dart_NativeMessageHandler_DL handler, \
bool handle_concurrently)) \
F(Dart_CloseNativePort, bool, (Dart_Port_DL native_port_id))
// dart_api.h symbols can only be called on Dart threads.
#define DART_API_DL_SYMBOLS(F) \
/***** dart_api.h *****/ \
/* Errors */ \
F(Dart_IsError, bool, (Dart_Handle handle)) \
F(Dart_IsApiError, bool, (Dart_Handle handle)) \
F(Dart_IsUnhandledExceptionError, bool, (Dart_Handle handle)) \
F(Dart_IsCompilationError, bool, (Dart_Handle handle)) \
F(Dart_IsFatalError, bool, (Dart_Handle handle)) \
F(Dart_GetError, const char*, (Dart_Handle handle)) \
F(Dart_ErrorHasException, bool, (Dart_Handle handle)) \
F(Dart_ErrorGetException, Dart_Handle, (Dart_Handle handle)) \
F(Dart_ErrorGetStackTrace, Dart_Handle, (Dart_Handle handle)) \
F(Dart_NewApiError, Dart_Handle, (const char* error)) \
F(Dart_NewCompilationError, Dart_Handle, (const char* error)) \
F(Dart_NewUnhandledExceptionError, Dart_Handle, (Dart_Handle exception)) \
F(Dart_PropagateError, void, (Dart_Handle handle)) \
/* Dart_Handle, Dart_PersistentHandle, Dart_WeakPersistentHandle */ \
F(Dart_HandleFromPersistent, Dart_Handle, (Dart_PersistentHandle object)) \
F(Dart_HandleFromWeakPersistent, Dart_Handle, \
(Dart_WeakPersistentHandle object)) \
F(Dart_NewPersistentHandle, Dart_PersistentHandle, (Dart_Handle object)) \
F(Dart_SetPersistentHandle, void, \
(Dart_PersistentHandle obj1, Dart_Handle obj2)) \
F(Dart_DeletePersistentHandle, void, (Dart_PersistentHandle object)) \
F(Dart_NewWeakPersistentHandle, Dart_WeakPersistentHandle, \
(Dart_Handle object, void* peer, intptr_t external_allocation_size, \
Dart_HandleFinalizer callback)) \
F(Dart_DeleteWeakPersistentHandle, void, (Dart_WeakPersistentHandle object)) \
F(Dart_NewFinalizableHandle, Dart_FinalizableHandle, \
(Dart_Handle object, void* peer, intptr_t external_allocation_size, \
Dart_HandleFinalizer callback)) \
F(Dart_DeleteFinalizableHandle, void, \
(Dart_FinalizableHandle object, Dart_Handle strong_ref_to_object)) \
/* Isolates */ \
F(Dart_CurrentIsolate, Dart_Isolate, (void)) \
F(Dart_ExitIsolate, void, (void)) \
F(Dart_EnterIsolate, void, (Dart_Isolate)) \
/* Dart_Port */ \
F(Dart_Post, bool, (Dart_Port_DL port_id, Dart_Handle object)) \
F(Dart_NewSendPort, Dart_Handle, (Dart_Port_DL port_id)) \
F(Dart_SendPortGetId, Dart_Handle, \
(Dart_Handle port, Dart_Port_DL * port_id)) \
/* Scopes */ \
F(Dart_EnterScope, void, (void)) \
F(Dart_ExitScope, void, (void)) \
/* Objects */ \
F(Dart_IsNull, bool, (Dart_Handle))
// dart_api.h symbols that have been deprecated but are retained here
// until we can make a breaking change bumping the major version number
// (DART_API_DL_MAJOR_VERSION)
#define DART_API_DEPRECATED_DL_SYMBOLS(F) \
F(Dart_UpdateExternalSize, void, \
(Dart_WeakPersistentHandle object, intptr_t external_allocation_size)) \
F(Dart_UpdateFinalizableExternalSize, void, \
(Dart_FinalizableHandle object, Dart_Handle strong_ref_to_object, \
intptr_t external_allocation_size))
#define DART_API_ALL_DL_SYMBOLS(F) \
DART_NATIVE_API_DL_SYMBOLS(F) \
DART_API_DL_SYMBOLS(F)
// IMPORTANT! Never update these signatures without properly updating
// DART_API_DL_MAJOR_VERSION and DART_API_DL_MINOR_VERSION.
//
// End of verbatim copy.
// ============================================================================
// Copy of definition of DART_EXPORT without 'used' attribute.
//
// The 'used' attribute cannot be used with DART_API_ALL_DL_SYMBOLS because
// they are not function declarations, but variable declarations with a
// function pointer type.
//
// The function pointer variables are initialized with the addresses of the
// functions in the VM. If we were to use function declarations instead, we
// would need to forward the call to the VM adding indirection.
#if defined(__CYGWIN__)
#error Tool chain and platform not supported.
#elif defined(_WIN32)
#if defined(DART_SHARED_LIB)
#define DART_EXPORT_DL DART_EXTERN_C __declspec(dllexport)
#else
#define DART_EXPORT_DL DART_EXTERN_C
#endif
#else
#if __GNUC__ >= 4
#if defined(DART_SHARED_LIB)
#define DART_EXPORT_DL DART_EXTERN_C __attribute__((visibility("default")))
#else
#define DART_EXPORT_DL DART_EXTERN_C
#endif
#else
#error Tool chain not supported.
#endif
#endif
#define DART_API_DL_DECLARATIONS(name, R, A) \
typedef R(*name##_Type) A; \
DART_EXPORT_DL name##_Type name##_DL;
DART_API_ALL_DL_SYMBOLS(DART_API_DL_DECLARATIONS)
DART_API_DEPRECATED_DL_SYMBOLS(DART_API_DL_DECLARATIONS)
#undef DART_API_DL_DECLARATIONS
#undef DART_EXPORT_DL
#endif /* RUNTIME_INCLUDE_DART_API_DL_H_ */ /* NOLINT */

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// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#ifndef RUNTIME_INCLUDE_DART_EMBEDDER_API_H_
#define RUNTIME_INCLUDE_DART_EMBEDDER_API_H_
#include "include/dart_api.h"
#include "include/dart_tools_api.h"
namespace dart {
namespace embedder {
// Initialize all subsystems of the embedder.
//
// Must be called before the `Dart_Initialize()` call to initialize the
// Dart VM.
//
// Returns true on success and false otherwise, in which case error would
// contain error message.
DART_WARN_UNUSED_RESULT bool InitOnce(char** error);
// Cleans up all subsystems of the embedder.
//
// Must be called after the `Dart_Cleanup()` call to initialize the
// Dart VM.
void Cleanup();
// Common arguments that are passed to isolate creation callback and to
// API methods that create isolates.
struct IsolateCreationData {
// URI for the main script that will be running in the isolate.
const char* script_uri;
// Advisory name of the main method that will be run by isolate.
// Only used for error messages.
const char* main;
// Isolate creation flags. Might be absent.
Dart_IsolateFlags* flags;
// Isolate group callback data.
void* isolate_group_data;
// Isolate callback data.
void* isolate_data;
};
// Create and initialize kernel-service isolate. This method should be used
// when VM invokes isolate creation callback with DART_KERNEL_ISOLATE_NAME as
// script_uri.
// The isolate is created from the given snapshot (might be kernel data or
// app-jit snapshot).
DART_WARN_UNUSED_RESULT Dart_Isolate
CreateKernelServiceIsolate(const IsolateCreationData& data,
const uint8_t* buffer,
intptr_t buffer_size,
char** error);
// Service isolate configuration.
struct VmServiceConfiguration {
enum {
kBindHttpServerToAFreePort = 0,
kDoNotAutoStartHttpServer = -1
};
// Address to which HTTP server will be bound.
const char* ip;
// Default port. See enum above for special values.
int port;
// If non-null, connection information for the VM service will be output to a
// file in JSON format at the location specified.
const char* write_service_info_filename;
// TODO(vegorov) document these ones.
bool dev_mode;
bool deterministic;
bool disable_auth_codes;
};
// Create and initialize vm-service isolate from the given AOT snapshot, which
// is expected to contain all necessary 'vm-service' libraries.
// This method should be used when VM invokes isolate creation callback with
// DART_VM_SERVICE_ISOLATE_NAME as script_uri.
DART_WARN_UNUSED_RESULT Dart_Isolate
CreateVmServiceIsolate(const IsolateCreationData& data,
const VmServiceConfiguration& config,
const uint8_t* isolate_data,
const uint8_t* isolate_instr,
char** error);
// Create and initialize vm-service isolate from the given kernel binary, which
// is expected to contain all necessary 'vm-service' libraries.
// This method should be used when VM invokes isolate creation callback with
// DART_VM_SERVICE_ISOLATE_NAME as script_uri.
DART_WARN_UNUSED_RESULT Dart_Isolate
CreateVmServiceIsolateFromKernel(const IsolateCreationData& data,
const VmServiceConfiguration& config,
const uint8_t* kernel_buffer,
intptr_t kernel_buffer_size,
char** error);
} // namespace embedder
} // namespace dart
#endif // RUNTIME_INCLUDE_DART_EMBEDDER_API_H_

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/*
* Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
* for details. All rights reserved. Use of this source code is governed by a
* BSD-style license that can be found in the LICENSE file.
*/
#ifndef RUNTIME_INCLUDE_DART_NATIVE_API_H_
#define RUNTIME_INCLUDE_DART_NATIVE_API_H_
#include "dart_api.h" /* NOLINT */
/*
* ==========================================
* Message sending/receiving from native code
* ==========================================
*/
/**
* A Dart_CObject is used for representing Dart objects as native C
* data outside the Dart heap. These objects are totally detached from
* the Dart heap. Only a subset of the Dart objects have a
* representation as a Dart_CObject.
*
* The string encoding in the 'value.as_string' is UTF-8.
*
* All the different types from dart:typed_data are exposed as type
* kTypedData. The specific type from dart:typed_data is in the type
* field of the as_typed_data structure. The length in the
* as_typed_data structure is always in bytes.
*
* The data for kTypedData is copied on message send and ownership remains with
* the caller. The ownership of data for kExternalTyped is passed to the VM on
* message send and returned when the VM invokes the
* Dart_HandleFinalizer callback; a non-NULL callback must be provided.
*
* Note that Dart_CObject_kNativePointer is intended for internal use by
* dart:io implementation and has no connection to dart:ffi Pointer class.
* It represents a pointer to a native resource of a known type.
* The receiving side will only see this pointer as an integer and will not
* see the specified finalizer.
* The specified finalizer will only be invoked if the message is not delivered.
*/
typedef enum {
Dart_CObject_kNull = 0,
Dart_CObject_kBool,
Dart_CObject_kInt32,
Dart_CObject_kInt64,
Dart_CObject_kDouble,
Dart_CObject_kString,
Dart_CObject_kArray,
Dart_CObject_kTypedData,
Dart_CObject_kExternalTypedData,
Dart_CObject_kSendPort,
Dart_CObject_kCapability,
Dart_CObject_kNativePointer,
Dart_CObject_kUnsupported,
Dart_CObject_kUnmodifiableExternalTypedData,
Dart_CObject_kNumberOfTypes
} Dart_CObject_Type;
// This enum is versioned by DART_API_DL_MAJOR_VERSION, only add at the end
// and bump the DART_API_DL_MINOR_VERSION.
typedef struct _Dart_CObject {
Dart_CObject_Type type;
union {
bool as_bool;
int32_t as_int32;
int64_t as_int64;
double as_double;
const char* as_string;
struct {
Dart_Port id;
Dart_Port origin_id;
} as_send_port;
struct {
int64_t id;
} as_capability;
struct {
intptr_t length;
struct _Dart_CObject** values;
} as_array;
struct {
Dart_TypedData_Type type;
intptr_t length; /* in elements, not bytes */
const uint8_t* values;
} as_typed_data;
struct {
Dart_TypedData_Type type;
intptr_t length; /* in elements, not bytes */
uint8_t* data;
void* peer;
Dart_HandleFinalizer callback;
} as_external_typed_data;
struct {
intptr_t ptr;
intptr_t size;
Dart_HandleFinalizer callback;
} as_native_pointer;
} value;
} Dart_CObject;
// This struct is versioned by DART_API_DL_MAJOR_VERSION, bump the version when
// changing this struct.
/**
* Posts a message on some port. The message will contain the Dart_CObject
* object graph rooted in 'message'.
*
* While the message is being sent the state of the graph of Dart_CObject
* structures rooted in 'message' should not be accessed, as the message
* generation will make temporary modifications to the data. When the message
* has been sent the graph will be fully restored.
*
* If true is returned, the message was enqueued, and finalizers for external
* typed data will eventually run, even if the receiving isolate shuts down
* before processing the message. If false is returned, the message was not
* enqueued and ownership of external typed data in the message remains with the
* caller.
*
* This function may be called on any thread when the VM is running (that is,
* after Dart_Initialize has returned and before Dart_Cleanup has been called).
*
* \param port_id The destination port.
* \param message The message to send.
*
* \return True if the message was posted.
*/
DART_EXPORT bool Dart_PostCObject(Dart_Port port_id, Dart_CObject* message);
/**
* Posts a message on some port. The message will contain the integer 'message'.
*
* \param port_id The destination port.
* \param message The message to send.
*
* \return True if the message was posted.
*/
DART_EXPORT bool Dart_PostInteger(Dart_Port port_id, int64_t message);
/**
* A native message handler.
*
* This handler is associated with a native port by calling
* Dart_NewNativePort.
*
* The message received is decoded into the message structure. The
* lifetime of the message data is controlled by the caller. All the
* data references from the message are allocated by the caller and
* will be reclaimed when returning to it.
*/
typedef void (*Dart_NativeMessageHandler)(Dart_Port dest_port_id,
Dart_CObject* message);
/**
* Creates a new native port. When messages are received on this
* native port, then they will be dispatched to the provided native
* message handler.
*
* \param name The name of this port in debugging messages.
* \param handler The C handler to run when messages arrive on the port.
* \param handle_concurrently Is it okay to process requests on this
* native port concurrently?
*
* \return If successful, returns the port id for the native port. In
* case of error, returns ILLEGAL_PORT.
*/
DART_EXPORT Dart_Port Dart_NewNativePort(const char* name,
Dart_NativeMessageHandler handler,
bool handle_concurrently);
/* TODO(turnidge): Currently handle_concurrently is ignored. */
/**
* Closes the native port with the given id.
*
* The port must have been allocated by a call to Dart_NewNativePort.
*
* \param native_port_id The id of the native port to close.
*
* \return Returns true if the port was closed successfully.
*/
DART_EXPORT bool Dart_CloseNativePort(Dart_Port native_port_id);
/*
* ==================
* Verification Tools
* ==================
*/
/**
* Forces all loaded classes and functions to be compiled eagerly in
* the current isolate..
*
* TODO(turnidge): Document.
*/
DART_EXPORT DART_WARN_UNUSED_RESULT Dart_Handle Dart_CompileAll(void);
/**
* Finalizes all classes.
*/
DART_EXPORT DART_WARN_UNUSED_RESULT Dart_Handle Dart_FinalizeAllClasses(void);
/* This function is intentionally undocumented.
*
* It should not be used outside internal tests.
*/
DART_EXPORT void* Dart_ExecuteInternalCommand(const char* command, void* arg);
#endif /* INCLUDE_DART_NATIVE_API_H_ */ /* NOLINT */

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// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#ifndef RUNTIME_INCLUDE_DART_TOOLS_API_H_
#define RUNTIME_INCLUDE_DART_TOOLS_API_H_
#include "dart_api.h" /* NOLINT */
/** \mainpage Dart Tools Embedding API Reference
*
* This reference describes the Dart embedding API for tools. Tools include
* a debugger, service protocol, and timeline.
*
* NOTE: The APIs described in this file are unstable and subject to change.
*
* This reference is generated from the header include/dart_tools_api.h.
*/
/*
* ========
* Debugger
* ========
*/
/**
* ILLEGAL_ISOLATE_ID is a number guaranteed never to be associated with a
* valid isolate.
*/
#define ILLEGAL_ISOLATE_ID ILLEGAL_PORT
/**
* ILLEGAL_ISOLATE_GROUP_ID is a number guaranteed never to be associated with a
* valid isolate group.
*/
#define ILLEGAL_ISOLATE_GROUP_ID 0
/*
* =======
* Service
* =======
*/
/**
* A service request callback function.
*
* These callbacks, registered by the embedder, are called when the VM receives
* a service request it can't handle and the service request command name
* matches one of the embedder registered handlers.
*
* The return value of the callback indicates whether the response
* should be used as a regular result or an error result.
* Specifically, if the callback returns true, a regular JSON-RPC
* response is built in the following way:
*
* {
* "jsonrpc": "2.0",
* "result": <json_object>,
* "id": <some sequence id>,
* }
*
* If the callback returns false, a JSON-RPC error is built like this:
*
* {
* "jsonrpc": "2.0",
* "error": <json_object>,
* "id": <some sequence id>,
* }
*
* \param method The rpc method name.
* \param param_keys Service requests can have key-value pair parameters. The
* keys and values are flattened and stored in arrays.
* \param param_values The values associated with the keys.
* \param num_params The length of the param_keys and param_values arrays.
* \param user_data The user_data pointer registered with this handler.
* \param result A C string containing a valid JSON object. The returned
* pointer will be freed by the VM by calling free.
*
* \return True if the result is a regular JSON-RPC response, false if the
* result is a JSON-RPC error.
*/
typedef bool (*Dart_ServiceRequestCallback)(const char* method,
const char** param_keys,
const char** param_values,
intptr_t num_params,
void* user_data,
const char** json_object);
/**
* Register a Dart_ServiceRequestCallback to be called to handle
* requests for the named rpc on a specific isolate. The callback will
* be invoked with the current isolate set to the request target.
*
* \param method The name of the method that this callback is responsible for.
* \param callback The callback to invoke.
* \param user_data The user data passed to the callback.
*
* NOTE: If multiple callbacks with the same name are registered, only
* the last callback registered will be remembered.
*/
DART_EXPORT void Dart_RegisterIsolateServiceRequestCallback(
const char* method,
Dart_ServiceRequestCallback callback,
void* user_data);
/**
* Register a Dart_ServiceRequestCallback to be called to handle
* requests for the named rpc. The callback will be invoked without a
* current isolate.
*
* \param method The name of the command that this callback is responsible for.
* \param callback The callback to invoke.
* \param user_data The user data passed to the callback.
*
* NOTE: If multiple callbacks with the same name are registered, only
* the last callback registered will be remembered.
*/
DART_EXPORT void Dart_RegisterRootServiceRequestCallback(
const char* method,
Dart_ServiceRequestCallback callback,
void* user_data);
/**
* Embedder information which can be requested by the VM for internal or
* reporting purposes.
*
* The pointers in this structure are not going to be cached or freed by the VM.
*/
#define DART_EMBEDDER_INFORMATION_CURRENT_VERSION (0x00000001)
typedef struct {
int32_t version;
const char* name; // [optional] The name of the embedder
int64_t current_rss; // [optional] the current RSS of the embedder
int64_t max_rss; // [optional] the maximum RSS of the embedder
} Dart_EmbedderInformation;
/**
* Callback provided by the embedder that is used by the VM to request
* information.
*
* \return Returns a pointer to a Dart_EmbedderInformation structure.
* The embedder keeps the ownership of the structure and any field in it.
* The embedder must ensure that the structure will remain valid until the
* next invocation of the callback.
*/
typedef void (*Dart_EmbedderInformationCallback)(
Dart_EmbedderInformation* info);
/**
* Register a Dart_ServiceRequestCallback to be called to handle
* requests for the named rpc. The callback will be invoked without a
* current isolate.
*
* \param method The name of the command that this callback is responsible for.
* \param callback The callback to invoke.
* \param user_data The user data passed to the callback.
*
* NOTE: If multiple callbacks are registered, only the last callback registered
* will be remembered.
*/
DART_EXPORT void Dart_SetEmbedderInformationCallback(
Dart_EmbedderInformationCallback callback);
/**
* Invoke a vm-service method and wait for its result.
*
* \param request_json The utf8-encoded json-rpc request.
* \param request_json_length The length of the json-rpc request.
*
* \param response_json The returned utf8-encoded json response, must be
* free()ed by caller.
* \param response_json_length The length of the returned json response.
* \param error An optional error, must be free()ed by caller.
*
* \return Whether the call was successfully performed.
*
* NOTE: This method does not need a current isolate and must not have the
* vm-isolate being the current isolate. It must be called after
* Dart_Initialize() and before Dart_Cleanup().
*/
DART_EXPORT bool Dart_InvokeVMServiceMethod(uint8_t* request_json,
intptr_t request_json_length,
uint8_t** response_json,
intptr_t* response_json_length,
char** error);
/*
* ========
* Event Streams
* ========
*/
/**
* A callback invoked when the VM service gets a request to listen to
* some stream.
*
* \return Returns true iff the embedder supports the named stream id.
*/
typedef bool (*Dart_ServiceStreamListenCallback)(const char* stream_id);
/**
* A callback invoked when the VM service gets a request to cancel
* some stream.
*/
typedef void (*Dart_ServiceStreamCancelCallback)(const char* stream_id);
/**
* Adds VM service stream callbacks.
*
* \param listen_callback A function pointer to a listen callback function.
* A listen callback function should not be already set when this function
* is called. A NULL value removes the existing listen callback function
* if any.
*
* \param cancel_callback A function pointer to a cancel callback function.
* A cancel callback function should not be already set when this function
* is called. A NULL value removes the existing cancel callback function
* if any.
*
* \return Success if the callbacks were added. Otherwise, returns an
* error handle.
*/
DART_EXPORT char* Dart_SetServiceStreamCallbacks(
Dart_ServiceStreamListenCallback listen_callback,
Dart_ServiceStreamCancelCallback cancel_callback);
/**
* Sends a data event to clients of the VM Service.
*
* A data event is used to pass an array of bytes to subscribed VM
* Service clients. For example, in the standalone embedder, this is
* function used to provide WriteEvents on the Stdout and Stderr
* streams.
*
* If the embedder passes in a stream id for which no client is
* subscribed, then the event is ignored.
*
* \param stream_id The id of the stream on which to post the event.
*
* \param event_kind A string identifying what kind of event this is.
* For example, 'WriteEvent'.
*
* \param bytes A pointer to an array of bytes.
*
* \param bytes_length The length of the byte array.
*
* \return NULL if the arguments are well formed. Otherwise, returns an
* error string. The caller is responsible for freeing the error message.
*/
DART_EXPORT char* Dart_ServiceSendDataEvent(const char* stream_id,
const char* event_kind,
const uint8_t* bytes,
intptr_t bytes_length);
/*
* ========
* Reload support
* ========
*
* These functions are used to implement reloading in the Dart VM.
* This is an experimental feature, so embedders should be prepared
* for these functions to change.
*/
/**
* A callback which determines whether the file at some url has been
* modified since some time. If the file cannot be found, true should
* be returned.
*/
typedef bool (*Dart_FileModifiedCallback)(const char* url, int64_t since);
DART_EXPORT char* Dart_SetFileModifiedCallback(
Dart_FileModifiedCallback file_modified_callback);
/**
* Returns true if isolate is currently reloading.
*/
DART_EXPORT bool Dart_IsReloading();
/*
* ========
* Timeline
* ========
*/
/**
* Enable tracking of specified timeline category. This is operational
* only when systrace timeline functionality is turned on.
*
* \param categories A comma separated list of categories that need to
* be enabled, the categories are
* "all" : All categories
* "API" - Execution of Dart C API functions
* "Compiler" - Execution of Dart JIT compiler
* "CompilerVerbose" - More detailed Execution of Dart JIT compiler
* "Dart" - Execution of Dart code
* "Debugger" - Execution of Dart debugger
* "Embedder" - Execution of Dart embedder code
* "GC" - Execution of Dart Garbage Collector
* "Isolate" - Dart Isolate lifecycle execution
* "VM" - Execution in Dart VM runtime code
* "" - None
*
* When "all" is specified all the categories are enabled.
* When a comma separated list of categories is specified, the categories
* that are specified will be enabled and the rest will be disabled.
* When "" is specified all the categories are disabled.
* The category names are case sensitive.
* eg: Dart_EnableTimelineCategory("all");
* Dart_EnableTimelineCategory("GC,API,Isolate");
* Dart_EnableTimelineCategory("GC,Debugger,Dart");
*
* \return True if the categories were successfully enabled, False otherwise.
*/
DART_EXPORT bool Dart_SetEnabledTimelineCategory(const char* categories);
/**
* Returns a timestamp in microseconds. This timestamp is suitable for
* passing into the timeline system, and uses the same monotonic clock
* as dart:developer's Timeline.now.
*
* \return A timestamp that can be passed to the timeline system.
*/
DART_EXPORT int64_t Dart_TimelineGetMicros();
/**
* Returns a raw timestamp in from the monotonic clock.
*
* \return A raw timestamp from the monotonic clock.
*/
DART_EXPORT int64_t Dart_TimelineGetTicks();
/**
* Returns the frequency of the monotonic clock.
*
* \return The frequency of the monotonic clock.
*/
DART_EXPORT int64_t Dart_TimelineGetTicksFrequency();
typedef enum {
Dart_Timeline_Event_Begin, // Phase = 'B'.
Dart_Timeline_Event_End, // Phase = 'E'.
Dart_Timeline_Event_Instant, // Phase = 'i'.
Dart_Timeline_Event_Duration, // Phase = 'X'.
Dart_Timeline_Event_Async_Begin, // Phase = 'b'.
Dart_Timeline_Event_Async_End, // Phase = 'e'.
Dart_Timeline_Event_Async_Instant, // Phase = 'n'.
Dart_Timeline_Event_Counter, // Phase = 'C'.
Dart_Timeline_Event_Flow_Begin, // Phase = 's'.
Dart_Timeline_Event_Flow_Step, // Phase = 't'.
Dart_Timeline_Event_Flow_End, // Phase = 'f'.
} Dart_Timeline_Event_Type;
/**
* Add a timeline event to the embedder stream.
*
* DEPRECATED: this function will be removed in Dart SDK v3.2.
*
* \param label The name of the event. Its lifetime must extend at least until
* Dart_Cleanup.
* \param timestamp0 The first timestamp of the event.
* \param timestamp1_or_id When reporting an event of type
* |Dart_Timeline_Event_Duration|, the second (end) timestamp of the event
* should be passed through |timestamp1_or_id|. When reporting an event of
* type |Dart_Timeline_Event_Async_Begin|, |Dart_Timeline_Event_Async_End|,
* or |Dart_Timeline_Event_Async_Instant|, the async ID associated with the
* event should be passed through |timestamp1_or_id|. When reporting an
* event of type |Dart_Timeline_Event_Flow_Begin|,
* |Dart_Timeline_Event_Flow_Step|, or |Dart_Timeline_Event_Flow_End|, the
* flow ID associated with the event should be passed through
* |timestamp1_or_id|. When reporting an event of type
* |Dart_Timeline_Event_Begin| or |Dart_Timeline_Event_End|, the event ID
* associated with the event should be passed through |timestamp1_or_id|.
* Note that this event ID will only be used by the MacOS recorder. The
* argument to |timestamp1_or_id| will not be used when reporting events of
* other types.
* \param argument_count The number of argument names and values.
* \param argument_names An array of names of the arguments. The lifetime of the
* names must extend at least until Dart_Cleanup. The array may be reclaimed
* when this call returns.
* \param argument_values An array of values of the arguments. The values and
* the array may be reclaimed when this call returns.
*/
DART_EXPORT void Dart_TimelineEvent(const char* label,
int64_t timestamp0,
int64_t timestamp1_or_id,
Dart_Timeline_Event_Type type,
intptr_t argument_count,
const char** argument_names,
const char** argument_values);
/**
* Add a timeline event to the embedder stream.
*
* Note regarding flow events: events must be associated with flow IDs in two
* different ways to allow flow events to be serialized correctly in both
* Chrome's JSON trace event format and Perfetto's proto trace format. Events
* of type |Dart_Timeline_Event_Flow_Begin|, |Dart_Timeline_Event_Flow_Step|,
* and |Dart_Timeline_Event_Flow_End| must be reported to support serialization
* in Chrome's trace format. The |flow_ids| argument must be supplied when
* reporting events of type |Dart_Timeline_Event_Begin|,
* |Dart_Timeline_Event_Duration|, |Dart_Timeline_Event_Instant|,
* |Dart_Timeline_Event_Async_Begin|, and |Dart_Timeline_Event_Async_Instant| to
* support serialization in Perfetto's proto format.
*
* \param label The name of the event. Its lifetime must extend at least until
* Dart_Cleanup.
* \param timestamp0 The first timestamp of the event.
* \param timestamp1_or_id When reporting an event of type
* |Dart_Timeline_Event_Duration|, the second (end) timestamp of the event
* should be passed through |timestamp1_or_id|. When reporting an event of
* type |Dart_Timeline_Event_Async_Begin|, |Dart_Timeline_Event_Async_End|,
* or |Dart_Timeline_Event_Async_Instant|, the async ID associated with the
* event should be passed through |timestamp1_or_id|. When reporting an
* event of type |Dart_Timeline_Event_Flow_Begin|,
* |Dart_Timeline_Event_Flow_Step|, or |Dart_Timeline_Event_Flow_End|, the
* flow ID associated with the event should be passed through
* |timestamp1_or_id|. When reporting an event of type
* |Dart_Timeline_Event_Begin| or |Dart_Timeline_Event_End|, the event ID
* associated with the event should be passed through |timestamp1_or_id|.
* Note that this event ID will only be used by the MacOS recorder. The
* argument to |timestamp1_or_id| will not be used when reporting events of
* other types.
* \param flow_id_count The number of flow IDs associated with this event.
* \param flow_ids An array of flow IDs associated with this event. The array
* may be reclaimed when this call returns.
* \param argument_count The number of argument names and values.
* \param argument_names An array of names of the arguments. The lifetime of the
* names must extend at least until Dart_Cleanup. The array may be reclaimed
* when this call returns.
* \param argument_values An array of values of the arguments. The values and
* the array may be reclaimed when this call returns.
*/
DART_EXPORT void Dart_RecordTimelineEvent(const char* label,
int64_t timestamp0,
int64_t timestamp1_or_id,
intptr_t flow_id_count,
const int64_t* flow_ids,
Dart_Timeline_Event_Type type,
intptr_t argument_count,
const char** argument_names,
const char** argument_values);
/**
* Associates a name with the current thread. This name will be used to name
* threads in the timeline. Can only be called after a call to Dart_Initialize.
*
* \param name The name of the thread.
*/
DART_EXPORT void Dart_SetThreadName(const char* name);
typedef struct {
const char* name;
const char* value;
} Dart_TimelineRecorderEvent_Argument;
#define DART_TIMELINE_RECORDER_CURRENT_VERSION (0x00000002)
typedef struct {
/* Set to DART_TIMELINE_RECORDER_CURRENT_VERSION */
int32_t version;
/* The event's type / phase. */
Dart_Timeline_Event_Type type;
/* The event's timestamp according to the same clock as
* Dart_TimelineGetMicros. For a duration event, this is the beginning time.
*/
int64_t timestamp0;
/**
* For a duration event, this is the end time. For an async event, this is the
* async ID. For a flow event, this is the flow ID. For a begin or end event,
* this is the event ID (which is only referenced by the MacOS recorder).
*/
int64_t timestamp1_or_id;
/* The current isolate of the event, as if by Dart_GetMainPortId, or
* ILLEGAL_PORT if the event had no current isolate. */
Dart_Port isolate;
/* The current isolate group of the event, as if by
* Dart_CurrentIsolateGroupId, or ILLEGAL_PORT if the event had no current
* isolate group. */
Dart_IsolateGroupId isolate_group;
/* The callback data associated with the isolate if any. */
void* isolate_data;
/* The callback data associated with the isolate group if any. */
void* isolate_group_data;
/* The name / label of the event. */
const char* label;
/* The stream / category of the event. */
const char* stream;
intptr_t argument_count;
Dart_TimelineRecorderEvent_Argument* arguments;
} Dart_TimelineRecorderEvent;
/**
* Callback provided by the embedder to handle the completion of timeline
* events.
*
* \param event A timeline event that has just been completed. The VM keeps
* ownership of the event and any field in it (i.e., the embedder should copy
* any values it needs after the callback returns).
*/
typedef void (*Dart_TimelineRecorderCallback)(
Dart_TimelineRecorderEvent* event);
/**
* Register a `Dart_TimelineRecorderCallback` to be called as timeline events
* are completed.
*
* The callback will be invoked without a current isolate.
*
* The callback will be invoked on the thread completing the event. Because
* `Dart_TimelineEvent` may be called by any thread, the callback may be called
* on any thread.
*
* The callback may be invoked at any time after `Dart_Initialize` is called and
* before `Dart_Cleanup` returns.
*
* If multiple callbacks are registered, only the last callback registered
* will be remembered. Providing a NULL callback will clear the registration
* (i.e., a NULL callback produced a no-op instead of a crash).
*
* Setting a callback is insufficient to receive events through the callback. The
* VM flag `timeline_recorder` must also be set to `callback`.
*/
DART_EXPORT void Dart_SetTimelineRecorderCallback(
Dart_TimelineRecorderCallback callback);
/*
* =======
* Metrics
* =======
*/
/**
* Return metrics gathered for the VM and individual isolates.
*/
DART_EXPORT int64_t
Dart_IsolateGroupHeapOldUsedMetric(Dart_IsolateGroup group); // Byte
DART_EXPORT int64_t
Dart_IsolateGroupHeapOldCapacityMetric(Dart_IsolateGroup group); // Byte
DART_EXPORT int64_t
Dart_IsolateGroupHeapOldExternalMetric(Dart_IsolateGroup group); // Byte
DART_EXPORT int64_t
Dart_IsolateGroupHeapNewUsedMetric(Dart_IsolateGroup group); // Byte
DART_EXPORT int64_t
Dart_IsolateGroupHeapNewCapacityMetric(Dart_IsolateGroup group); // Byte
DART_EXPORT int64_t
Dart_IsolateGroupHeapNewExternalMetric(Dart_IsolateGroup group); // Byte
/*
* ========
* UserTags
* ========
*/
/*
* Gets the current isolate's currently set UserTag instance.
*
* \return The currently set UserTag instance.
*/
DART_EXPORT Dart_Handle Dart_GetCurrentUserTag();
/*
* Gets the current isolate's default UserTag instance.
*
* \return The default UserTag with label 'Default'
*/
DART_EXPORT Dart_Handle Dart_GetDefaultUserTag();
/*
* Creates a new UserTag instance.
*
* \param label The name of the new UserTag.
*
* \return The newly created UserTag instance or an error handle.
*/
DART_EXPORT Dart_Handle Dart_NewUserTag(const char* label);
/*
* Updates the current isolate's UserTag to a new value.
*
* \param user_tag The UserTag to be set as the current UserTag.
*
* \return The previously set UserTag instance or an error handle.
*/
DART_EXPORT Dart_Handle Dart_SetCurrentUserTag(Dart_Handle user_tag);
/*
* Returns the label of a given UserTag instance.
*
* \param user_tag The UserTag from which the label will be retrieved.
*
* \return The UserTag's label. NULL if the user_tag is invalid. The caller is
* responsible for freeing the returned label.
*/
DART_EXPORT DART_WARN_UNUSED_RESULT char* Dart_GetUserTagLabel(
Dart_Handle user_tag);
/*
* =======
* Heap Snapshot
* =======
*/
/**
* Callback provided by the caller of `Dart_WriteHeapSnapshot` which is
* used to write out chunks of the requested heap snapshot.
*
* \param context An opaque context which was passed to `Dart_WriteHeapSnapshot`
* together with this callback.
*
* \param buffer Pointer to the buffer containing a chunk of the snapshot.
* The callback owns the buffer and needs to `free` it.
*
* \param size Number of bytes in the `buffer` to be written.
*
* \param is_last Set to `true` for the last chunk. The callback will not
* be invoked again after it was invoked once with `is_last` set to `true`.
*/
typedef void (*Dart_HeapSnapshotWriteChunkCallback)(void* context,
uint8_t* buffer,
intptr_t size,
bool is_last);
/**
* Generate heap snapshot of the current isolate group and stream it into the
* given `callback`. VM would produce snapshot in chunks and send these chunks
* one by one back to the embedder by invoking the provided `callback`.
*
* This API enables embedder to stream snapshot into a file or socket without
* allocating a buffer to hold the whole snapshot in memory.
*
* The isolate group will be paused for the duration of this operation.
*
* \param write Callback used to write chunks of the heap snapshot.
*
* \param context Opaque context which would be passed on each invocation of
* `write` callback.
*
* \returns `nullptr` if the operation is successful otherwise error message.
* Caller owns error message string and needs to `free` it.
*/
DART_EXPORT char* Dart_WriteHeapSnapshot(
Dart_HeapSnapshotWriteChunkCallback write,
void* context);
#endif // RUNTIME_INCLUDE_DART_TOOLS_API_H_

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/*
* Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
* for details. All rights reserved. Use of this source code is governed by a
* BSD-style license that can be found in the LICENSE file.
*/
#ifndef RUNTIME_INCLUDE_DART_VERSION_H_
#define RUNTIME_INCLUDE_DART_VERSION_H_
// On breaking changes the major version is increased.
// On backwards compatible changes the minor version is increased.
// The versioning covers the symbols exposed in dart_api_dl.h
#define DART_API_DL_MAJOR_VERSION 2
#define DART_API_DL_MINOR_VERSION 3
#endif /* RUNTIME_INCLUDE_DART_VERSION_H_ */ /* NOLINT */

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/*
* Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
* for details. All rights reserved. Use of this source code is governed by a
* BSD-style license that can be found in the LICENSE file.
*/
#ifndef RUNTIME_INCLUDE_INTERNAL_DART_API_DL_IMPL_H_
#define RUNTIME_INCLUDE_INTERNAL_DART_API_DL_IMPL_H_
typedef struct {
const char* name;
void (*function)(void);
} DartApiEntry;
typedef struct {
const int major;
const int minor;
const DartApiEntry* const functions;
} DartApi;
#endif /* RUNTIME_INCLUDE_INTERNAL_DART_API_DL_IMPL_H_ */ /* NOLINT */