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Unified Diff: sky/engine/bindings2/mojo_natives.cc

Issue 915293003: Rename sky/engine/bindings2 to sky/engine/bindings (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: more better Created 5 years, 10 months ago
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Index: sky/engine/bindings2/mojo_natives.cc
diff --git a/sky/engine/bindings2/mojo_natives.cc b/sky/engine/bindings2/mojo_natives.cc
deleted file mode 100644
index 708a4037405d55d7a3caa736928064077615f97a..0000000000000000000000000000000000000000
--- a/sky/engine/bindings2/mojo_natives.cc
+++ /dev/null
@@ -1,809 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "sky/engine/config.h"
-#include "sky/engine/bindings2/mojo_natives.h"
-
-#include <stdio.h>
-#include <string.h>
-#include <vector>
-
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "dart/runtime/include/dart_api.h"
-#include "mojo/public/c/system/core.h"
-#include "mojo/public/cpp/system/core.h"
-#include "sky/engine/bindings2/builtin.h"
-#include "sky/engine/tonic/dart_converter.h"
-#include "sky/engine/tonic/dart_builtin.h"
-
-namespace blink {
-
-#define REGISTER_FUNCTION(name, count) \
- { "" #name, name, count },
-#define DECLARE_FUNCTION(name, count) \
- extern void name(Dart_NativeArguments args);
-
-#define MOJO_NATIVE_LIST(V) \
- V(MojoSharedBuffer_Create, 2) \
- V(MojoSharedBuffer_Duplicate, 2) \
- V(MojoSharedBuffer_Map, 5) \
- V(MojoSharedBuffer_Unmap, 1) \
- V(MojoDataPipe_Create, 3) \
- V(MojoDataPipe_WriteData, 4) \
- V(MojoDataPipe_BeginWriteData, 3) \
- V(MojoDataPipe_EndWriteData, 2) \
- V(MojoDataPipe_ReadData, 4) \
- V(MojoDataPipe_BeginReadData, 3) \
- V(MojoDataPipe_EndReadData, 2) \
- V(MojoMessagePipe_Create, 1) \
- V(MojoMessagePipe_Write, 5) \
- V(MojoMessagePipe_Read, 5) \
- V(MojoHandle_Close, 1) \
- V(MojoHandle_Wait, 3) \
- V(MojoHandle_Register, 1) \
- V(MojoHandle_WaitMany, 3) \
- V(MojoHandleWatcher_SendControlData, 4) \
- V(MojoHandleWatcher_RecvControlData, 1) \
- V(MojoHandleWatcher_SetControlHandle, 1) \
- V(MojoHandleWatcher_GetControlHandle, 0)
-
-MOJO_NATIVE_LIST(DECLARE_FUNCTION);
-
-static struct NativeEntries {
- const char* name;
- Dart_NativeFunction function;
- int argument_count;
-} MojoEntries[] = {MOJO_NATIVE_LIST(REGISTER_FUNCTION)};
-
-Dart_NativeFunction MojoNativeLookup(Dart_Handle name,
- int argument_count,
- bool* auto_setup_scope) {
- const char* function_name = nullptr;
- Dart_Handle result = Dart_StringToCString(name, &function_name);
- DART_CHECK_VALID(result);
- DCHECK(function_name != nullptr);
- DCHECK(auto_setup_scope != nullptr);
- *auto_setup_scope = true;
- size_t num_entries = arraysize(MojoEntries);
- for (size_t i = 0; i < num_entries; ++i) {
- const struct NativeEntries& entry = MojoEntries[i];
- if (!strcmp(function_name, entry.name) &&
- (entry.argument_count == argument_count)) {
- return entry.function;
- }
- }
- return nullptr;
-}
-
-const uint8_t* MojoNativeSymbol(Dart_NativeFunction nf) {
- size_t num_entries = arraysize(MojoEntries);
- for (size_t i = 0; i < num_entries; ++i) {
- const struct NativeEntries& entry = MojoEntries[i];
- if (entry.function == nf) {
- return reinterpret_cast<const uint8_t*>(entry.name);
- }
- }
- return nullptr;
-}
-
-static void SetNullReturn(Dart_NativeArguments arguments) {
- Dart_SetReturnValue(arguments, Dart_Null());
-}
-
-static void SetInvalidArgumentReturn(Dart_NativeArguments arguments) {
- Dart_SetIntegerReturnValue(
- arguments, static_cast<int64_t>(MOJO_RESULT_INVALID_ARGUMENT));
-}
-
-static Dart_Handle MojoLib() {
- return DartBuiltin::LookupLibrary("dart:mojo_core");
-}
-
-static Dart_Handle SignalsStateToDart(Dart_Handle klass,
- const MojoHandleSignalsState& state) {
- Dart_Handle arg1 = Dart_NewInteger(state.satisfied_signals);
- Dart_Handle arg2 = Dart_NewInteger(state.satisfiable_signals);
- Dart_Handle args[] = {arg1, arg2};
- return Dart_New(klass, Dart_Null(), 2, args);
-}
-
-#define CHECK_INTEGER_ARGUMENT(args, num, result, failure) \
- { \
- Dart_Handle __status; \
- __status = Dart_GetNativeIntegerArgument(args, num, result); \
- if (Dart_IsError(__status)) { \
- Set##failure##Return(arguments); \
- return; \
- } \
- } \
-
-struct CloserCallbackPeer {
- MojoHandle handle;
-};
-
-static void MojoHandleCloserCallback(void* isolate_data,
- Dart_WeakPersistentHandle handle,
- void* peer) {
- CloserCallbackPeer* callback_peer =
- reinterpret_cast<CloserCallbackPeer*>(peer);
- if (callback_peer->handle != MOJO_HANDLE_INVALID) {
- MojoClose(callback_peer->handle);
- }
- delete callback_peer;
-}
-
-// Setup a weak persistent handle for a Dart MojoHandle that calls MojoClose
-// on the handle when the MojoHandle is GC'd or the VM is going down.
-void MojoHandle_Register(Dart_NativeArguments arguments) {
- // An instance of Dart class MojoHandle.
- Dart_Handle mojo_handle_instance = Dart_GetNativeArgument(arguments, 0);
- if (!Dart_IsInstance(mojo_handle_instance)) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
- // TODO(zra): Here, we could check that mojo_handle_instance is really a
- // MojoHandle instance, but with the Dart API it's not too easy to get a Type
- // object from the class name outside of the root library. For now, we'll rely
- // on the existence of the right fields to be sufficient.
-
- Dart_Handle raw_mojo_handle_instance = Dart_GetField(
- mojo_handle_instance, ToDart("_handle"));
- if (Dart_IsError(raw_mojo_handle_instance)) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
-
- Dart_Handle mojo_handle = Dart_GetField(
- raw_mojo_handle_instance, ToDart("h"));
- if (Dart_IsError(mojo_handle)) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
-
- int64_t raw_handle = static_cast<int64_t>(MOJO_HANDLE_INVALID);
- Dart_Handle result = Dart_IntegerToInt64(mojo_handle, &raw_handle);
- if (Dart_IsError(result)) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
-
- if (raw_handle == static_cast<int64_t>(MOJO_HANDLE_INVALID)) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
-
- CloserCallbackPeer* callback_peer = new CloserCallbackPeer();
- callback_peer->handle = static_cast<MojoHandle>(raw_handle);
- Dart_NewWeakPersistentHandle(mojo_handle_instance,
- reinterpret_cast<void*>(callback_peer),
- sizeof(CloserCallbackPeer),
- MojoHandleCloserCallback);
- Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(MOJO_RESULT_OK));
-}
-
-void MojoHandle_Close(Dart_NativeArguments arguments) {
- int64_t handle;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, InvalidArgument);
-
- MojoResult res = MojoClose(static_cast<MojoHandle>(handle));
-
- Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res));
-}
-
-void MojoHandle_Wait(Dart_NativeArguments arguments) {
- int64_t handle = 0;
- int64_t signals = 0;
- int64_t deadline = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, InvalidArgument);
- CHECK_INTEGER_ARGUMENT(arguments, 1, &signals, InvalidArgument);
- CHECK_INTEGER_ARGUMENT(arguments, 2, &deadline, InvalidArgument);
-
- MojoHandleSignalsState state;
- MojoResult r = mojo::Wait(mojo::Handle(static_cast<MojoHandle>(handle)),
- static_cast<MojoHandleSignals>(signals),
- static_cast<MojoDeadline>(deadline), &state);
-
- Dart_Handle klass = Dart_GetClass(
- MojoLib(), ToDart("MojoHandleSignalsState"));
- DART_CHECK_VALID(klass);
-
- // The return value is structured as a list of length 2:
- // [0] MojoResult
- // [1] MojoHandleSignalsState. (may be null)
- Dart_Handle list = Dart_NewList(2);
- Dart_ListSetAt(list, 0, Dart_NewInteger(r));
- if (mojo::WaitManyResult(r).AreSignalsStatesValid()) {
- Dart_ListSetAt(list, 1, SignalsStateToDart(klass, state));
- } else {
- Dart_ListSetAt(list, 1, Dart_Null());
- }
- Dart_SetReturnValue(arguments, list);
-}
-
-void MojoHandle_WaitMany(Dart_NativeArguments arguments) {
- int64_t deadline = 0;
- Dart_Handle handles = Dart_GetNativeArgument(arguments, 0);
- Dart_Handle signals = Dart_GetNativeArgument(arguments, 1);
- CHECK_INTEGER_ARGUMENT(arguments, 2, &deadline, InvalidArgument);
-
- if (!Dart_IsList(handles) || !Dart_IsList(signals)) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
-
- intptr_t handles_len = 0;
- intptr_t signals_len = 0;
- Dart_ListLength(handles, &handles_len);
- Dart_ListLength(signals, &signals_len);
- if (handles_len != signals_len) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
-
- std::vector<mojo::Handle> mojo_handles(handles_len);
- std::vector<MojoHandleSignals> mojo_signals(handles_len);
-
- for (int i = 0; i < handles_len; i++) {
- Dart_Handle dart_handle = Dart_ListGetAt(handles, i);
- Dart_Handle dart_signal = Dart_ListGetAt(signals, i);
- if (!Dart_IsInteger(dart_handle) || !Dart_IsInteger(dart_signal)) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
- int64_t mojo_handle = 0;
- int64_t mojo_signal = 0;
- Dart_IntegerToInt64(dart_handle, &mojo_handle);
- Dart_IntegerToInt64(dart_signal, &mojo_signal);
- mojo_handles[i] = mojo::Handle(mojo_handle);
- mojo_signals[i] = static_cast<MojoHandleSignals>(mojo_signal);
- }
-
- std::vector<MojoHandleSignalsState> states(handles_len);
- mojo::WaitManyResult wmr = mojo::WaitMany(
- mojo_handles, mojo_signals, static_cast<MojoDeadline>(deadline), &states);
-
- Dart_Handle klass = Dart_GetClass(
- MojoLib(), ToDart("MojoHandleSignalsState"));
- DART_CHECK_VALID(klass);
-
- // The return value is structured as a list of length 3:
- // [0] MojoResult
- // [1] index of handle that caused a return (may be null)
- // [2] list of MojoHandleSignalsState. (may be null)
- Dart_Handle list = Dart_NewList(3);
- Dart_ListSetAt(list, 0, Dart_NewInteger(wmr.result));
- if (wmr.IsIndexValid())
- Dart_ListSetAt(list, 1, Dart_NewInteger(wmr.index));
- else
- Dart_ListSetAt(list, 1, Dart_Null());
- if (wmr.AreSignalsStatesValid()) {
- Dart_Handle stateList = Dart_NewList(handles_len);
- for (int i = 0; i < handles_len; i++) {
- Dart_ListSetAt(stateList, i, SignalsStateToDart(klass, states[i]));
- }
- Dart_ListSetAt(list, 2, stateList);
- } else {
- Dart_ListSetAt(list, 2, Dart_Null());
- }
- Dart_SetReturnValue(arguments, list);
-}
-
-void MojoSharedBuffer_Create(Dart_NativeArguments arguments) {
- int64_t num_bytes = 0;
- int64_t flags = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &num_bytes, Null);
- CHECK_INTEGER_ARGUMENT(arguments, 1, &flags, Null);
-
- MojoCreateSharedBufferOptions options;
- options.struct_size = sizeof(MojoCreateSharedBufferOptions);
- options.flags = static_cast<MojoCreateSharedBufferOptionsFlags>(flags);
-
- MojoHandle out = MOJO_HANDLE_INVALID;;
- MojoResult res = MojoCreateSharedBuffer(
- &options, static_cast<int32_t>(num_bytes), &out);
-
- Dart_Handle list = Dart_NewList(2);
- Dart_ListSetAt(list, 0, Dart_NewInteger(res));
- Dart_ListSetAt(list, 1, Dart_NewInteger(out));
- Dart_SetReturnValue(arguments, list);
-}
-
-void MojoSharedBuffer_Duplicate(Dart_NativeArguments arguments) {
- int64_t handle = 0;
- int64_t flags = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null);
- CHECK_INTEGER_ARGUMENT(arguments, 1, &flags, Null);
-
- MojoDuplicateBufferHandleOptions options;
- options.struct_size = sizeof(MojoDuplicateBufferHandleOptions);
- options.flags = static_cast<MojoDuplicateBufferHandleOptionsFlags>(flags);
-
- MojoHandle out = MOJO_HANDLE_INVALID;;
- MojoResult res = MojoDuplicateBufferHandle(
- static_cast<MojoHandle>(handle), &options, &out);
-
- Dart_Handle list = Dart_NewList(2);
- Dart_ListSetAt(list, 0, Dart_NewInteger(res));
- Dart_ListSetAt(list, 1, Dart_NewInteger(out));
- Dart_SetReturnValue(arguments, list);
-}
-
-static void MojoBufferUnmapCallback(void* isolate_data,
- Dart_WeakPersistentHandle handle,
- void* peer) {
- MojoUnmapBuffer(peer);
-}
-
-void MojoSharedBuffer_Map(Dart_NativeArguments arguments) {
- int64_t handle = 0;
- int64_t offset = 0;
- int64_t num_bytes = 0;
- int64_t flags = 0;
- Dart_Handle mojo_buffer = Dart_GetNativeArgument(arguments, 0);
- CHECK_INTEGER_ARGUMENT(arguments, 1, &handle, Null);
- CHECK_INTEGER_ARGUMENT(arguments, 2, &offset, Null);
- CHECK_INTEGER_ARGUMENT(arguments, 3, &num_bytes, Null);
- CHECK_INTEGER_ARGUMENT(arguments, 4, &flags, Null);
-
- void* out;
- MojoResult res = MojoMapBuffer(static_cast<MojoHandle>(handle),
- offset,
- num_bytes,
- &out,
- static_cast<MojoMapBufferFlags>(flags));
-
- Dart_Handle list = Dart_NewList(2);
- Dart_Handle typed_data;
- if (res == MOJO_RESULT_OK) {
- typed_data = Dart_NewExternalTypedData(
- Dart_TypedData_kByteData, out, num_bytes);
- Dart_NewWeakPersistentHandle(
- mojo_buffer, out, num_bytes, MojoBufferUnmapCallback);
- } else {
- typed_data = Dart_Null();
- }
- Dart_ListSetAt(list, 0, Dart_NewInteger(res));
- Dart_ListSetAt(list, 1, typed_data);
- Dart_SetReturnValue(arguments, list);
-}
-
-void MojoSharedBuffer_Unmap(Dart_NativeArguments arguments) {
- Dart_Handle typed_data = Dart_GetNativeArgument(arguments, 0);
- if (Dart_GetTypeOfExternalTypedData(typed_data) == Dart_TypedData_kInvalid) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
-
- Dart_TypedData_Type typ;
- void *data;
- intptr_t len;
- Dart_TypedDataAcquireData(typed_data, &typ, &data, &len);
- MojoResult res = MojoUnmapBuffer(data);
- Dart_TypedDataReleaseData(typed_data);
-
- Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res));
-}
-
-void MojoDataPipe_Create(Dart_NativeArguments arguments) {
- int64_t element_bytes = 0;
- int64_t capacity_bytes = 0;
- int64_t flags = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &element_bytes, Null);
- CHECK_INTEGER_ARGUMENT(arguments, 1, &capacity_bytes, Null);
- CHECK_INTEGER_ARGUMENT(arguments, 2, &flags, Null);
-
- MojoCreateDataPipeOptions options;
- options.struct_size = sizeof(MojoCreateDataPipeOptions);
- options.flags = static_cast<MojoCreateDataPipeOptionsFlags>(flags);
- options.element_num_bytes = static_cast<uint32_t>(element_bytes);
- options.capacity_num_bytes = static_cast<uint32_t>(capacity_bytes);
-
- MojoHandle producer = MOJO_HANDLE_INVALID;
- MojoHandle consumer = MOJO_HANDLE_INVALID;
- MojoResult res = MojoCreateDataPipe(&options, &producer, &consumer);
-
- Dart_Handle list = Dart_NewList(3);
- Dart_ListSetAt(list, 0, Dart_NewInteger(res));
- Dart_ListSetAt(list, 1, Dart_NewInteger(producer));
- Dart_ListSetAt(list, 2, Dart_NewInteger(consumer));
- Dart_SetReturnValue(arguments, list);
-}
-
-void MojoDataPipe_WriteData(Dart_NativeArguments arguments) {
- int64_t handle = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null);
-
- Dart_Handle typed_data = Dart_GetNativeArgument(arguments, 1);
- if (!Dart_IsTypedData(typed_data)) {
- SetNullReturn(arguments);
- return;
- }
-
- int64_t num_bytes = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 2, &num_bytes, Null);
- if (num_bytes <= 0) {
- SetNullReturn(arguments);
- return;
- }
-
- int64_t flags = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 3, &flags, Null);
-
- Dart_TypedData_Type type;
- void* data;
- intptr_t data_length;
- Dart_TypedDataAcquireData(typed_data, &type, &data, &data_length);
- uint32_t length = static_cast<uint32_t>(num_bytes);
- MojoResult res = MojoWriteData(
- static_cast<MojoHandle>(handle),
- data,
- &length,
- static_cast<MojoWriteDataFlags>(flags));
- Dart_TypedDataReleaseData(typed_data);
-
- Dart_Handle list = Dart_NewList(2);
- Dart_ListSetAt(list, 0, Dart_NewInteger(res));
- Dart_ListSetAt(list, 1, Dart_NewInteger(length));
- Dart_SetReturnValue(arguments, list);
-}
-
-void MojoDataPipe_BeginWriteData(Dart_NativeArguments arguments) {
- int64_t handle = 0;
- int64_t buffer_bytes = 0;
- int64_t flags = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null);
- CHECK_INTEGER_ARGUMENT(arguments, 1, &buffer_bytes, Null);
- CHECK_INTEGER_ARGUMENT(arguments, 2, &flags, Null);
-
- void* buffer;
- uint32_t size = static_cast<uint32_t>(buffer_bytes);
- MojoResult res = MojoBeginWriteData(
- static_cast<MojoHandle>(handle),
- &buffer,
- &size,
- static_cast<MojoWriteDataFlags>(flags));
-
- Dart_Handle list = Dart_NewList(2);
- Dart_Handle typed_data;
- if (res == MOJO_RESULT_OK) {
- typed_data = Dart_NewExternalTypedData(
- Dart_TypedData_kByteData, buffer, size);
- } else {
- typed_data = Dart_Null();
- }
- Dart_ListSetAt(list, 0, Dart_NewInteger(res));
- Dart_ListSetAt(list, 1, typed_data);
- Dart_SetReturnValue(arguments, list);
-}
-
-void MojoDataPipe_EndWriteData(Dart_NativeArguments arguments) {
- int64_t handle = 0;
- int64_t num_bytes_written = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, InvalidArgument);
- CHECK_INTEGER_ARGUMENT(arguments, 1, &num_bytes_written, InvalidArgument);
-
- MojoResult res = MojoEndWriteData(
- static_cast<MojoHandle>(handle),
- static_cast<uint32_t>(num_bytes_written));
-
- Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res));
-}
-
-void MojoDataPipe_ReadData(Dart_NativeArguments arguments) {
- int64_t handle = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null);
-
- Dart_Handle typed_data = Dart_GetNativeArgument(arguments, 1);
- if (!Dart_IsTypedData(typed_data) && !Dart_IsNull(typed_data)) {
- SetNullReturn(arguments);
- return;
- }
- // When querying the amount of data available to read from the pipe,
- // null is passed in for typed_data.
-
- int64_t num_bytes = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 2, &num_bytes, Null);
-
- int64_t flags = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 3, &flags, Null);
-
- Dart_TypedData_Type typ;
- void* data = nullptr;
- intptr_t bdlen = 0;
- if (!Dart_IsNull(typed_data)) {
- Dart_TypedDataAcquireData(typed_data, &typ, &data, &bdlen);
- }
- uint32_t len = static_cast<uint32_t>(num_bytes);
- MojoResult res = MojoReadData(
- static_cast<MojoHandle>(handle),
- data,
- &len,
- static_cast<MojoReadDataFlags>(flags));
- if (!Dart_IsNull(typed_data)) {
- Dart_TypedDataReleaseData(typed_data);
- }
-
- Dart_Handle list = Dart_NewList(2);
- Dart_ListSetAt(list, 0, Dart_NewInteger(res));
- Dart_ListSetAt(list, 1, Dart_NewInteger(len));
- Dart_SetReturnValue(arguments, list);
-}
-
-void MojoDataPipe_BeginReadData(Dart_NativeArguments arguments) {
- int64_t handle = 0;
- int64_t buffer_bytes = 0;
- int64_t flags = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null);
- CHECK_INTEGER_ARGUMENT(arguments, 1, &buffer_bytes, Null);
- CHECK_INTEGER_ARGUMENT(arguments, 2, &flags, Null);
-
- void* buffer;
- uint32_t size = static_cast<uint32_t>(buffer_bytes);
- MojoResult res = MojoBeginReadData(
- static_cast<MojoHandle>(handle),
- const_cast<const void**>(&buffer),
- &size,
- static_cast<MojoWriteDataFlags>(flags));
-
- Dart_Handle list = Dart_NewList(2);
- Dart_Handle typed_data;
- if (res == MOJO_RESULT_OK) {
- typed_data = Dart_NewExternalTypedData(
- Dart_TypedData_kByteData, buffer, size);
- } else {
- typed_data = Dart_Null();
- }
- Dart_ListSetAt(list, 0, Dart_NewInteger(res));
- Dart_ListSetAt(list, 1, typed_data);
- Dart_SetReturnValue(arguments, list);
-}
-
-void MojoDataPipe_EndReadData(Dart_NativeArguments arguments) {
- int64_t handle = 0;
- int64_t num_bytes_read = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, InvalidArgument);
- CHECK_INTEGER_ARGUMENT(arguments, 1, &num_bytes_read, InvalidArgument);
-
- MojoResult res = MojoEndReadData(
- static_cast<MojoHandle>(handle),
- static_cast<uint32_t>(num_bytes_read));
-
- Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res));
-}
-
-void MojoMessagePipe_Create(Dart_NativeArguments arguments) {
- int64_t flags = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &flags, Null);
-
- MojoCreateMessagePipeOptions options;
- options.struct_size = sizeof(MojoCreateMessagePipeOptions);
- options.flags = static_cast<MojoCreateMessagePipeOptionsFlags>(flags);
-
- MojoHandle end1 = MOJO_HANDLE_INVALID;
- MojoHandle end2 = MOJO_HANDLE_INVALID;
- MojoResult res = MojoCreateMessagePipe(&options, &end1, &end2);
-
- Dart_Handle list = Dart_NewList(3);
- Dart_ListSetAt(list, 0, Dart_NewInteger(res));
- Dart_ListSetAt(list, 1, Dart_NewInteger(end1));
- Dart_ListSetAt(list, 2, Dart_NewInteger(end2));
- Dart_SetReturnValue(arguments, list);
-}
-
-void MojoMessagePipe_Write(Dart_NativeArguments arguments) {
- int64_t handle = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, InvalidArgument);
-
- Dart_Handle typed_data = Dart_GetNativeArgument(arguments, 1);
- if (!Dart_IsTypedData(typed_data) && !Dart_IsNull(typed_data)) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
-
- int64_t num_bytes = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 2, &num_bytes, InvalidArgument);
- if ((Dart_IsNull(typed_data) && (num_bytes != 0)) ||
- (!Dart_IsNull(typed_data) && (num_bytes <= 0))) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
-
- Dart_Handle handles = Dart_GetNativeArgument(arguments, 3);
- if (!Dart_IsList(handles) && !Dart_IsNull(handles)) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
-
- int64_t flags = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 4, &flags, InvalidArgument);
-
- // Grab the data if there is any.
- Dart_TypedData_Type typ;
- void* bytes = nullptr;
- intptr_t bdlen = 0;
- if (!Dart_IsNull(typed_data)) {
- Dart_TypedDataAcquireData(typed_data, &typ, &bytes, &bdlen);
- }
-
- // Grab the handles if there are any.
- scoped_ptr<MojoHandle[]> mojo_handles;
- intptr_t handles_len = 0;
- if (!Dart_IsNull(handles)) {
- Dart_ListLength(handles, &handles_len);
- if (handles_len > 0) {
- mojo_handles.reset(new MojoHandle[handles_len]);
- }
- for (int i = 0; i < handles_len; i++) {
- Dart_Handle dart_handle = Dart_ListGetAt(handles, i);
- if (!Dart_IsInteger(dart_handle)) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
- int64_t mojo_handle = 0;
- Dart_IntegerToInt64(dart_handle, &mojo_handle);
- mojo_handles[i] = static_cast<MojoHandle>(mojo_handle);
- }
- }
-
- MojoResult res = MojoWriteMessage(
- static_cast<MojoHandle>(handle),
- const_cast<const void*>(bytes),
- static_cast<uint32_t>(num_bytes),
- mojo_handles.get(),
- static_cast<uint32_t>(handles_len),
- static_cast<MojoWriteMessageFlags>(flags));
-
- // Release the data.
- if (!Dart_IsNull(typed_data)) {
- Dart_TypedDataReleaseData(typed_data);
- }
-
- Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res));
-}
-
-void MojoMessagePipe_Read(Dart_NativeArguments arguments) {
- int64_t handle = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null);
-
- Dart_Handle typed_data = Dart_GetNativeArgument(arguments, 1);
- if (!Dart_IsTypedData(typed_data) && !Dart_IsNull(typed_data)) {
- SetNullReturn(arguments);
- return;
- }
- // When querying the amount of data available to read from the pipe,
- // null is passed in for typed_data.
-
- int64_t num_bytes = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 2, &num_bytes, Null);
- if ((Dart_IsNull(typed_data) && (num_bytes != 0)) ||
- (!Dart_IsNull(typed_data) && (num_bytes <= 0))) {
- SetNullReturn(arguments);
- return;
- }
-
- Dart_Handle handles = Dart_GetNativeArgument(arguments, 3);
- if (!Dart_IsList(handles) && !Dart_IsNull(handles)) {
- SetNullReturn(arguments);
- return;
- }
-
- int64_t flags = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 4, &flags, Null);
-
- // Grab the data if there is any.
- Dart_TypedData_Type typ;
- void* bytes = nullptr;
- intptr_t byte_data_len = 0;
- if (!Dart_IsNull(typed_data)) {
- Dart_TypedDataAcquireData(typed_data, &typ, &bytes, &byte_data_len);
- }
- uint32_t blen = static_cast<uint32_t>(num_bytes);
-
- // Grab the handles if there are any.
- scoped_ptr<MojoHandle[]> mojo_handles;
- intptr_t handles_len = 0;
- if (!Dart_IsNull(handles)) {
- Dart_ListLength(handles, &handles_len);
- mojo_handles.reset(new MojoHandle[handles_len]);
- }
- uint32_t hlen = static_cast<uint32_t>(handles_len);
-
- MojoResult res = MojoReadMessage(
- static_cast<MojoHandle>(handle),
- bytes,
- &blen,
- mojo_handles.get(),
- &hlen,
- static_cast<MojoReadMessageFlags>(flags));
-
- // Release the data.
- if (!Dart_IsNull(typed_data)) {
- Dart_TypedDataReleaseData(typed_data);
- }
-
- if (!Dart_IsNull(handles)) {
- for (int i = 0; i < handles_len; i++) {
- Dart_ListSetAt(handles, i, Dart_NewInteger(mojo_handles[i]));
- }
- }
-
- Dart_Handle list = Dart_NewList(3);
- Dart_ListSetAt(list, 0, Dart_NewInteger(res));
- Dart_ListSetAt(list, 1, Dart_NewInteger(blen));
- Dart_ListSetAt(list, 2, Dart_NewInteger(hlen));
- Dart_SetReturnValue(arguments, list);
-}
-
-struct ControlData {
- int64_t handle;
- Dart_Port port;
- int64_t data;
-};
-
-void MojoHandleWatcher_SendControlData(Dart_NativeArguments arguments) {
- int64_t control_handle = 0;
- int64_t client_handle = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &control_handle, InvalidArgument);
- CHECK_INTEGER_ARGUMENT(arguments, 1, &client_handle, InvalidArgument);
-
- Dart_Handle send_port_handle = Dart_GetNativeArgument(arguments, 2);
- Dart_Port send_port_id = 0;
- if (!Dart_IsNull(send_port_handle)) {
- Dart_Handle result = Dart_SendPortGetId(send_port_handle, &send_port_id);
- if (Dart_IsError(result)) {
- SetInvalidArgumentReturn(arguments);
- return;
- }
- }
-
- int64_t data = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 3, &data, InvalidArgument);
-
- ControlData cd;
- cd.handle = client_handle;
- cd.port = send_port_id;
- cd.data = data;
- const void* bytes = reinterpret_cast<const void*>(&cd);
- MojoResult res = MojoWriteMessage(
- control_handle, bytes, sizeof(cd), nullptr, 0, 0);
- Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res));
-}
-
-void MojoHandleWatcher_RecvControlData(Dart_NativeArguments arguments) {
- int64_t control_handle = 0;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &control_handle, Null);
-
- ControlData cd;
- void* bytes = reinterpret_cast<void*>(&cd);
- uint32_t num_bytes = sizeof(cd);
- uint32_t num_handles = 0;
- MojoResult res = MojoReadMessage(
- control_handle, bytes, &num_bytes, nullptr, &num_handles, 0);
- if (res != MOJO_RESULT_OK) {
- SetNullReturn(arguments);
- return;
- }
-
- Dart_Handle list = Dart_NewList(3);
- Dart_ListSetAt(list, 0, Dart_NewInteger(cd.handle));
- Dart_ListSetAt(list, 1, Dart_NewSendPort(cd.port));
- Dart_ListSetAt(list, 2, Dart_NewInteger(cd.data));
- Dart_SetReturnValue(arguments, list);
-}
-
-static int64_t mojo_control_handle = MOJO_HANDLE_INVALID;
-void MojoHandleWatcher_SetControlHandle(Dart_NativeArguments arguments) {
- int64_t control_handle;
- CHECK_INTEGER_ARGUMENT(arguments, 0, &control_handle, InvalidArgument);
- mojo_control_handle = control_handle;
- Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(MOJO_RESULT_OK));
-}
-
-void MojoHandleWatcher_GetControlHandle(Dart_NativeArguments arguments) {
- Dart_SetIntegerReturnValue(arguments, mojo_control_handle);
-}
-
-} // namespace blink
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