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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include <stdio.h> | |
| 6 #include <string.h> | |
| 7 | |
| 8 #include <memory> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "dart/runtime/include/dart_api.h" | |
| 12 #include "mojo/dart/embedder/builtin.h" | |
| 13 #include "mojo/public/c/system/core.h" | |
| 14 #include "mojo/public/cpp/environment/logging.h" | |
| 15 #include "mojo/public/cpp/system/core.h" | |
| 16 #include "mojo/public/cpp/system/macros.h" | |
| 17 | |
| 18 namespace mojo { | |
| 19 namespace dart { | |
| 20 | |
| 21 #define MOJO_NATIVE_LIST(V) \ | |
| 22 V(MojoSharedBuffer_Create, 2) \ | |
| 23 V(MojoSharedBuffer_Duplicate, 2) \ | |
| 24 V(MojoSharedBuffer_Map, 5) \ | |
| 25 V(MojoSharedBuffer_Unmap, 1) \ | |
| 26 V(MojoDataPipe_Create, 3) \ | |
| 27 V(MojoDataPipe_WriteData, 4) \ | |
| 28 V(MojoDataPipe_BeginWriteData, 3) \ | |
| 29 V(MojoDataPipe_EndWriteData, 2) \ | |
| 30 V(MojoDataPipe_ReadData, 4) \ | |
| 31 V(MojoDataPipe_BeginReadData, 3) \ | |
| 32 V(MojoDataPipe_EndReadData, 2) \ | |
| 33 V(MojoMessagePipe_Create, 1) \ | |
| 34 V(MojoMessagePipe_Write, 5) \ | |
| 35 V(MojoMessagePipe_Read, 5) \ | |
| 36 V(Mojo_GetTimeTicksNow, 0) \ | |
| 37 V(MojoHandle_Close, 1) \ | |
| 38 V(MojoHandle_Wait, 3) \ | |
| 39 V(MojoHandle_RegisterFinalizer, 2) \ | |
| 40 V(MojoHandle_WaitMany, 3) \ | |
| 41 V(MojoHandleWatcher_GrowStateArrays, 1) \ | |
| 42 V(MojoHandleWatcher_WaitMany, 2) \ | |
| 43 V(MojoHandleWatcher_SendControlData, 4) \ | |
| 44 V(MojoHandleWatcher_RecvControlData, 1) \ | |
| 45 V(MojoHandleWatcher_SetControlHandle, 1) \ | |
| 46 V(MojoHandleWatcher_GetControlHandle, 0) | |
| 47 | |
| 48 MOJO_NATIVE_LIST(DECLARE_FUNCTION); | |
| 49 | |
| 50 static struct NativeEntries { | |
| 51 const char* name; | |
| 52 Dart_NativeFunction function; | |
| 53 int argument_count; | |
| 54 } MojoEntries[] = {MOJO_NATIVE_LIST(REGISTER_FUNCTION)}; | |
| 55 | |
| 56 Dart_NativeFunction MojoNativeLookup(Dart_Handle name, | |
| 57 int argument_count, | |
| 58 bool* auto_setup_scope) { | |
| 59 const char* function_name = nullptr; | |
| 60 Dart_Handle result = Dart_StringToCString(name, &function_name); | |
| 61 DART_CHECK_VALID(result); | |
| 62 assert(function_name != nullptr); | |
| 63 assert(auto_setup_scope != nullptr); | |
| 64 *auto_setup_scope = true; | |
| 65 size_t num_entries = MOJO_ARRAYSIZE(MojoEntries); | |
| 66 for (size_t i = 0; i < num_entries; ++i) { | |
| 67 const struct NativeEntries& entry = MojoEntries[i]; | |
| 68 if (!strcmp(function_name, entry.name) && | |
| 69 (entry.argument_count == argument_count)) { | |
| 70 return entry.function; | |
| 71 } | |
| 72 } | |
| 73 return nullptr; | |
| 74 } | |
| 75 | |
| 76 const uint8_t* MojoNativeSymbol(Dart_NativeFunction nf) { | |
| 77 size_t num_entries = MOJO_ARRAYSIZE(MojoEntries); | |
| 78 for (size_t i = 0; i < num_entries; ++i) { | |
| 79 const struct NativeEntries& entry = MojoEntries[i]; | |
| 80 if (entry.function == nf) { | |
| 81 return reinterpret_cast<const uint8_t*>(entry.name); | |
| 82 } | |
| 83 } | |
| 84 return nullptr; | |
| 85 } | |
| 86 | |
| 87 static void SetNullReturn(Dart_NativeArguments arguments) { | |
| 88 Dart_SetReturnValue(arguments, Dart_Null()); | |
| 89 } | |
| 90 | |
| 91 static void SetInvalidArgumentReturn(Dart_NativeArguments arguments) { | |
| 92 Dart_SetIntegerReturnValue( | |
| 93 arguments, static_cast<int64_t>(MOJO_RESULT_INVALID_ARGUMENT)); | |
| 94 } | |
| 95 | |
| 96 static Dart_Handle SignalsStateToDart(const MojoHandleSignalsState& state) { | |
| 97 Dart_Handle list = Dart_NewList(2); | |
| 98 Dart_Handle arg0 = Dart_NewInteger(state.satisfied_signals); | |
| 99 Dart_Handle arg1 = Dart_NewInteger(state.satisfiable_signals); | |
| 100 Dart_ListSetAt(list, 0, arg0); | |
| 101 Dart_ListSetAt(list, 1, arg1); | |
| 102 return list; | |
| 103 } | |
| 104 | |
| 105 #define CHECK_INTEGER_ARGUMENT(args, num, result, failure) \ | |
| 106 { \ | |
| 107 Dart_Handle __status; \ | |
| 108 __status = Dart_GetNativeIntegerArgument(args, num, result); \ | |
| 109 if (Dart_IsError(__status)) { \ | |
| 110 Set##failure##Return(arguments); \ | |
| 111 return; \ | |
| 112 } \ | |
| 113 } \ | |
| 114 | |
| 115 struct CloserCallbackPeer { | |
| 116 MojoHandle handle; | |
| 117 }; | |
| 118 | |
| 119 static void MojoHandleCloserCallback(void* isolate_data, | |
| 120 Dart_WeakPersistentHandle handle, | |
| 121 void* peer) { | |
| 122 CloserCallbackPeer* callback_peer = | |
| 123 reinterpret_cast<CloserCallbackPeer*>(peer); | |
| 124 if (callback_peer->handle != MOJO_HANDLE_INVALID) { | |
| 125 MojoResult res = MojoClose(callback_peer->handle); | |
| 126 if (res == MOJO_RESULT_OK) { | |
| 127 // If this finalizer callback successfully closes a handle, it means that | |
| 128 // the handle has leaked from the Dart code, which is an error. | |
| 129 MOJO_LOG(ERROR) << "Handle Finalizer closing handle:\n\tisolate: " | |
| 130 << "\n\thandle: " << callback_peer->handle; | |
| 131 } | |
| 132 } | |
| 133 delete callback_peer; | |
| 134 } | |
| 135 | |
| 136 // Setup a weak persistent handle for a MojoHandle that calls MojoClose on the | |
| 137 // handle when the MojoHandle is GC'd or the VM is going down. | |
| 138 void MojoHandle_RegisterFinalizer(Dart_NativeArguments arguments) { | |
| 139 Dart_Handle mojo_handle_instance = Dart_GetNativeArgument(arguments, 0); | |
| 140 if (!Dart_IsInstance(mojo_handle_instance)) { | |
| 141 SetInvalidArgumentReturn(arguments); | |
| 142 return; | |
| 143 } | |
| 144 | |
| 145 int64_t raw_handle = static_cast<int64_t>(MOJO_HANDLE_INVALID); | |
| 146 CHECK_INTEGER_ARGUMENT(arguments, 1, &raw_handle, InvalidArgument); | |
| 147 if (raw_handle == static_cast<int64_t>(MOJO_HANDLE_INVALID)) { | |
| 148 SetInvalidArgumentReturn(arguments); | |
| 149 return; | |
| 150 } | |
| 151 | |
| 152 // Add the handle to this isolate's set. | |
| 153 MojoHandle handle = static_cast<MojoHandle>(raw_handle); | |
| 154 | |
| 155 // Set up a finalizer. | |
| 156 CloserCallbackPeer* callback_peer = new CloserCallbackPeer(); | |
| 157 callback_peer->handle = handle; | |
| 158 Dart_NewWeakPersistentHandle(mojo_handle_instance, | |
| 159 reinterpret_cast<void*>(callback_peer), | |
| 160 sizeof(CloserCallbackPeer), | |
| 161 MojoHandleCloserCallback); | |
| 162 Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(MOJO_RESULT_OK)); | |
| 163 } | |
| 164 | |
| 165 void Mojo_GetTimeTicksNow(Dart_NativeArguments arguments) { | |
| 166 MojoTimeTicks ticks = MojoGetTimeTicksNow(); | |
| 167 Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(ticks)); | |
| 168 } | |
| 169 | |
| 170 void MojoHandle_Close(Dart_NativeArguments arguments) { | |
| 171 int64_t raw_handle; | |
| 172 CHECK_INTEGER_ARGUMENT(arguments, 0, &raw_handle, InvalidArgument); | |
| 173 | |
| 174 // Remove the handle from this isolate's set. | |
| 175 MojoHandle handle = static_cast<MojoHandle>(raw_handle); | |
| 176 MojoResult res = MojoClose(handle); | |
| 177 | |
| 178 Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res)); | |
| 179 } | |
| 180 | |
| 181 void MojoHandle_Wait(Dart_NativeArguments arguments) { | |
| 182 int64_t handle = 0; | |
| 183 int64_t signals = 0; | |
| 184 int64_t deadline = 0; | |
| 185 CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, InvalidArgument); | |
| 186 CHECK_INTEGER_ARGUMENT(arguments, 1, &signals, InvalidArgument); | |
| 187 CHECK_INTEGER_ARGUMENT(arguments, 2, &deadline, InvalidArgument); | |
| 188 | |
| 189 MojoHandleSignalsState state; | |
| 190 MojoResult r = mojo::Wait(mojo::Handle(static_cast<MojoHandle>(handle)), | |
| 191 static_cast<MojoHandleSignals>(signals), | |
| 192 static_cast<MojoDeadline>(deadline), &state); | |
| 193 | |
| 194 // The return value is structured as a list of length 2: | |
| 195 // [0] MojoResult | |
| 196 // [1] MojoHandleSignalsState. (may be null) | |
| 197 Dart_Handle list = Dart_NewList(2); | |
| 198 Dart_ListSetAt(list, 0, Dart_NewInteger(r)); | |
| 199 if (mojo::WaitManyResult(r).AreSignalsStatesValid()) { | |
| 200 Dart_ListSetAt(list, 1, SignalsStateToDart(state)); | |
| 201 } else { | |
| 202 Dart_ListSetAt(list, 1, Dart_Null()); | |
| 203 } | |
| 204 Dart_SetReturnValue(arguments, list); | |
| 205 } | |
| 206 | |
| 207 void MojoHandle_WaitMany(Dart_NativeArguments arguments) { | |
| 208 int64_t deadline = 0; | |
| 209 Dart_Handle handles = Dart_GetNativeArgument(arguments, 0); | |
| 210 Dart_Handle signals = Dart_GetNativeArgument(arguments, 1); | |
| 211 CHECK_INTEGER_ARGUMENT(arguments, 2, &deadline, InvalidArgument); | |
| 212 | |
| 213 if (!Dart_IsList(handles) || !Dart_IsList(signals)) { | |
| 214 SetInvalidArgumentReturn(arguments); | |
| 215 return; | |
| 216 } | |
| 217 | |
| 218 intptr_t handles_len = 0; | |
| 219 intptr_t signals_len = 0; | |
| 220 Dart_ListLength(handles, &handles_len); | |
| 221 Dart_ListLength(signals, &signals_len); | |
| 222 if (handles_len != signals_len) { | |
| 223 SetInvalidArgumentReturn(arguments); | |
| 224 return; | |
| 225 } | |
| 226 | |
| 227 std::vector<mojo::Handle> mojo_handles(handles_len); | |
| 228 std::vector<MojoHandleSignals> mojo_signals(handles_len); | |
| 229 | |
| 230 for (int i = 0; i < handles_len; i++) { | |
| 231 Dart_Handle dart_handle = Dart_ListGetAt(handles, i); | |
| 232 Dart_Handle dart_signal = Dart_ListGetAt(signals, i); | |
| 233 if (!Dart_IsInteger(dart_handle) || !Dart_IsInteger(dart_signal)) { | |
| 234 SetInvalidArgumentReturn(arguments); | |
| 235 return; | |
| 236 } | |
| 237 int64_t mojo_handle = 0; | |
| 238 int64_t mojo_signal = 0; | |
| 239 Dart_IntegerToInt64(dart_handle, &mojo_handle); | |
| 240 Dart_IntegerToInt64(dart_signal, &mojo_signal); | |
| 241 mojo_handles[i] = mojo::Handle(mojo_handle); | |
| 242 mojo_signals[i] = static_cast<MojoHandleSignals>(mojo_signal); | |
| 243 } | |
| 244 | |
| 245 std::vector<MojoHandleSignalsState> states(handles_len); | |
| 246 mojo::WaitManyResult wmr = mojo::WaitMany( | |
| 247 mojo_handles, mojo_signals, static_cast<MojoDeadline>(deadline), &states); | |
| 248 | |
| 249 // The return value is structured as a list of length 3: | |
| 250 // [0] MojoResult | |
| 251 // [1] index of handle that caused a return (may be null) | |
| 252 // [2] list of MojoHandleSignalsState. (may be null) | |
| 253 Dart_Handle list = Dart_NewList(3); | |
| 254 Dart_ListSetAt(list, 0, Dart_NewInteger(wmr.result)); | |
| 255 if (wmr.IsIndexValid()) | |
| 256 Dart_ListSetAt(list, 1, Dart_NewInteger(wmr.index)); | |
| 257 else | |
| 258 Dart_ListSetAt(list, 1, Dart_Null()); | |
| 259 if (wmr.AreSignalsStatesValid()) { | |
| 260 Dart_Handle stateList = Dart_NewList(handles_len); | |
| 261 for (int i = 0; i < handles_len; i++) { | |
| 262 Dart_ListSetAt(stateList, i, SignalsStateToDart(states[i])); | |
| 263 } | |
| 264 Dart_ListSetAt(list, 2, stateList); | |
| 265 } else { | |
| 266 Dart_ListSetAt(list, 2, Dart_Null()); | |
| 267 } | |
| 268 Dart_SetReturnValue(arguments, list); | |
| 269 } | |
| 270 | |
| 271 void MojoSharedBuffer_Create(Dart_NativeArguments arguments) { | |
| 272 int64_t num_bytes = 0; | |
| 273 int64_t flags = 0; | |
| 274 CHECK_INTEGER_ARGUMENT(arguments, 0, &num_bytes, Null); | |
| 275 CHECK_INTEGER_ARGUMENT(arguments, 1, &flags, Null); | |
| 276 | |
| 277 MojoCreateSharedBufferOptions options; | |
| 278 options.struct_size = sizeof(MojoCreateSharedBufferOptions); | |
| 279 options.flags = static_cast<MojoCreateSharedBufferOptionsFlags>(flags); | |
| 280 | |
| 281 MojoHandle out = MOJO_HANDLE_INVALID;; | |
| 282 MojoResult res = MojoCreateSharedBuffer( | |
| 283 &options, static_cast<int32_t>(num_bytes), &out); | |
| 284 | |
| 285 Dart_Handle list = Dart_NewList(2); | |
| 286 Dart_ListSetAt(list, 0, Dart_NewInteger(res)); | |
| 287 Dart_ListSetAt(list, 1, Dart_NewInteger(out)); | |
| 288 Dart_SetReturnValue(arguments, list); | |
| 289 } | |
| 290 | |
| 291 void MojoSharedBuffer_Duplicate(Dart_NativeArguments arguments) { | |
| 292 int64_t handle = 0; | |
| 293 int64_t flags = 0; | |
| 294 CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null); | |
| 295 CHECK_INTEGER_ARGUMENT(arguments, 1, &flags, Null); | |
| 296 | |
| 297 MojoDuplicateBufferHandleOptions options; | |
| 298 options.struct_size = sizeof(MojoDuplicateBufferHandleOptions); | |
| 299 options.flags = static_cast<MojoDuplicateBufferHandleOptionsFlags>(flags); | |
| 300 | |
| 301 MojoHandle out = MOJO_HANDLE_INVALID;; | |
| 302 MojoResult res = MojoDuplicateBufferHandle( | |
| 303 static_cast<MojoHandle>(handle), &options, &out); | |
| 304 | |
| 305 Dart_Handle list = Dart_NewList(2); | |
| 306 Dart_ListSetAt(list, 0, Dart_NewInteger(res)); | |
| 307 Dart_ListSetAt(list, 1, Dart_NewInteger(out)); | |
| 308 Dart_SetReturnValue(arguments, list); | |
| 309 } | |
| 310 | |
| 311 static void MojoBufferUnmapCallback(void* isolate_data, | |
| 312 Dart_WeakPersistentHandle handle, | |
| 313 void* peer) { | |
| 314 MojoUnmapBuffer(peer); | |
| 315 } | |
| 316 | |
| 317 void MojoSharedBuffer_Map(Dart_NativeArguments arguments) { | |
| 318 int64_t handle = 0; | |
| 319 int64_t offset = 0; | |
| 320 int64_t num_bytes = 0; | |
| 321 int64_t flags = 0; | |
| 322 Dart_Handle mojo_buffer = Dart_GetNativeArgument(arguments, 0); | |
| 323 CHECK_INTEGER_ARGUMENT(arguments, 1, &handle, Null); | |
| 324 CHECK_INTEGER_ARGUMENT(arguments, 2, &offset, Null); | |
| 325 CHECK_INTEGER_ARGUMENT(arguments, 3, &num_bytes, Null); | |
| 326 CHECK_INTEGER_ARGUMENT(arguments, 4, &flags, Null); | |
| 327 | |
| 328 void* out; | |
| 329 MojoResult res = MojoMapBuffer(static_cast<MojoHandle>(handle), | |
| 330 offset, | |
| 331 num_bytes, | |
| 332 &out, | |
| 333 static_cast<MojoMapBufferFlags>(flags)); | |
| 334 | |
| 335 Dart_Handle list = Dart_NewList(2); | |
| 336 Dart_Handle typed_data; | |
| 337 if (res == MOJO_RESULT_OK) { | |
| 338 typed_data = Dart_NewExternalTypedData( | |
| 339 Dart_TypedData_kByteData, out, num_bytes); | |
| 340 Dart_NewWeakPersistentHandle( | |
| 341 mojo_buffer, out, num_bytes, MojoBufferUnmapCallback); | |
| 342 } else { | |
| 343 typed_data = Dart_Null(); | |
| 344 } | |
| 345 Dart_ListSetAt(list, 0, Dart_NewInteger(res)); | |
| 346 Dart_ListSetAt(list, 1, typed_data); | |
| 347 Dart_SetReturnValue(arguments, list); | |
| 348 } | |
| 349 | |
| 350 void MojoSharedBuffer_Unmap(Dart_NativeArguments arguments) { | |
| 351 Dart_Handle typed_data = Dart_GetNativeArgument(arguments, 0); | |
| 352 if (Dart_GetTypeOfExternalTypedData(typed_data) == Dart_TypedData_kInvalid) { | |
| 353 SetInvalidArgumentReturn(arguments); | |
| 354 return; | |
| 355 } | |
| 356 | |
| 357 Dart_TypedData_Type typ; | |
| 358 void *data; | |
| 359 intptr_t len; | |
| 360 Dart_TypedDataAcquireData(typed_data, &typ, &data, &len); | |
| 361 MojoResult res = MojoUnmapBuffer(data); | |
| 362 Dart_TypedDataReleaseData(typed_data); | |
| 363 | |
| 364 Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res)); | |
| 365 } | |
| 366 | |
| 367 void MojoDataPipe_Create(Dart_NativeArguments arguments) { | |
| 368 int64_t element_bytes = 0; | |
| 369 int64_t capacity_bytes = 0; | |
| 370 int64_t flags = 0; | |
| 371 CHECK_INTEGER_ARGUMENT(arguments, 0, &element_bytes, Null); | |
| 372 CHECK_INTEGER_ARGUMENT(arguments, 1, &capacity_bytes, Null); | |
| 373 CHECK_INTEGER_ARGUMENT(arguments, 2, &flags, Null); | |
| 374 | |
| 375 MojoCreateDataPipeOptions options; | |
| 376 options.struct_size = sizeof(MojoCreateDataPipeOptions); | |
| 377 options.flags = static_cast<MojoCreateDataPipeOptionsFlags>(flags); | |
| 378 options.element_num_bytes = static_cast<uint32_t>(element_bytes); | |
| 379 options.capacity_num_bytes = static_cast<uint32_t>(capacity_bytes); | |
| 380 | |
| 381 MojoHandle producer = MOJO_HANDLE_INVALID; | |
| 382 MojoHandle consumer = MOJO_HANDLE_INVALID; | |
| 383 MojoResult res = MojoCreateDataPipe(&options, &producer, &consumer); | |
| 384 | |
| 385 Dart_Handle list = Dart_NewList(3); | |
| 386 Dart_ListSetAt(list, 0, Dart_NewInteger(res)); | |
| 387 Dart_ListSetAt(list, 1, Dart_NewInteger(producer)); | |
| 388 Dart_ListSetAt(list, 2, Dart_NewInteger(consumer)); | |
| 389 Dart_SetReturnValue(arguments, list); | |
| 390 } | |
| 391 | |
| 392 void MojoDataPipe_WriteData(Dart_NativeArguments arguments) { | |
| 393 int64_t handle = 0; | |
| 394 CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null); | |
| 395 | |
| 396 Dart_Handle typed_data = Dart_GetNativeArgument(arguments, 1); | |
| 397 if (!Dart_IsTypedData(typed_data)) { | |
| 398 SetNullReturn(arguments); | |
| 399 return; | |
| 400 } | |
| 401 | |
| 402 int64_t num_bytes = 0; | |
| 403 CHECK_INTEGER_ARGUMENT(arguments, 2, &num_bytes, Null); | |
| 404 if (num_bytes <= 0) { | |
| 405 SetNullReturn(arguments); | |
| 406 return; | |
| 407 } | |
| 408 | |
| 409 int64_t flags = 0; | |
| 410 CHECK_INTEGER_ARGUMENT(arguments, 3, &flags, Null); | |
| 411 | |
| 412 Dart_TypedData_Type type; | |
| 413 void* data; | |
| 414 intptr_t data_length; | |
| 415 Dart_TypedDataAcquireData(typed_data, &type, &data, &data_length); | |
| 416 uint32_t length = static_cast<uint32_t>(num_bytes); | |
| 417 MojoResult res = MojoWriteData( | |
| 418 static_cast<MojoHandle>(handle), | |
| 419 data, | |
| 420 &length, | |
| 421 static_cast<MojoWriteDataFlags>(flags)); | |
| 422 Dart_TypedDataReleaseData(typed_data); | |
| 423 | |
| 424 Dart_Handle list = Dart_NewList(2); | |
| 425 Dart_ListSetAt(list, 0, Dart_NewInteger(res)); | |
| 426 Dart_ListSetAt(list, 1, Dart_NewInteger(length)); | |
| 427 Dart_SetReturnValue(arguments, list); | |
| 428 } | |
| 429 | |
| 430 void MojoDataPipe_BeginWriteData(Dart_NativeArguments arguments) { | |
| 431 int64_t handle = 0; | |
| 432 int64_t buffer_bytes = 0; | |
| 433 int64_t flags = 0; | |
| 434 CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null); | |
| 435 CHECK_INTEGER_ARGUMENT(arguments, 1, &buffer_bytes, Null); | |
| 436 CHECK_INTEGER_ARGUMENT(arguments, 2, &flags, Null); | |
| 437 | |
| 438 void* buffer; | |
| 439 uint32_t size = static_cast<uint32_t>(buffer_bytes); | |
| 440 MojoResult res = MojoBeginWriteData( | |
| 441 static_cast<MojoHandle>(handle), | |
| 442 &buffer, | |
| 443 &size, | |
| 444 static_cast<MojoWriteDataFlags>(flags)); | |
| 445 | |
| 446 Dart_Handle list = Dart_NewList(2); | |
| 447 Dart_Handle typed_data; | |
| 448 if (res == MOJO_RESULT_OK) { | |
| 449 typed_data = Dart_NewExternalTypedData( | |
| 450 Dart_TypedData_kByteData, buffer, size); | |
| 451 } else { | |
| 452 typed_data = Dart_Null(); | |
| 453 } | |
| 454 Dart_ListSetAt(list, 0, Dart_NewInteger(res)); | |
| 455 Dart_ListSetAt(list, 1, typed_data); | |
| 456 Dart_SetReturnValue(arguments, list); | |
| 457 } | |
| 458 | |
| 459 void MojoDataPipe_EndWriteData(Dart_NativeArguments arguments) { | |
| 460 int64_t handle = 0; | |
| 461 int64_t num_bytes_written = 0; | |
| 462 CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, InvalidArgument); | |
| 463 CHECK_INTEGER_ARGUMENT(arguments, 1, &num_bytes_written, InvalidArgument); | |
| 464 | |
| 465 MojoResult res = MojoEndWriteData( | |
| 466 static_cast<MojoHandle>(handle), | |
| 467 static_cast<uint32_t>(num_bytes_written)); | |
| 468 | |
| 469 Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res)); | |
| 470 } | |
| 471 | |
| 472 void MojoDataPipe_ReadData(Dart_NativeArguments arguments) { | |
| 473 int64_t handle = 0; | |
| 474 CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null); | |
| 475 | |
| 476 Dart_Handle typed_data = Dart_GetNativeArgument(arguments, 1); | |
| 477 if (!Dart_IsTypedData(typed_data) && !Dart_IsNull(typed_data)) { | |
| 478 SetNullReturn(arguments); | |
| 479 return; | |
| 480 } | |
| 481 // When querying the amount of data available to read from the pipe, | |
| 482 // null is passed in for typed_data. | |
| 483 | |
| 484 int64_t num_bytes = 0; | |
| 485 CHECK_INTEGER_ARGUMENT(arguments, 2, &num_bytes, Null); | |
| 486 | |
| 487 int64_t flags = 0; | |
| 488 CHECK_INTEGER_ARGUMENT(arguments, 3, &flags, Null); | |
| 489 | |
| 490 Dart_TypedData_Type typ; | |
| 491 void* data = nullptr; | |
| 492 intptr_t bdlen = 0; | |
| 493 if (!Dart_IsNull(typed_data)) { | |
| 494 Dart_TypedDataAcquireData(typed_data, &typ, &data, &bdlen); | |
| 495 } | |
| 496 uint32_t len = static_cast<uint32_t>(num_bytes); | |
| 497 MojoResult res = MojoReadData( | |
| 498 static_cast<MojoHandle>(handle), | |
| 499 data, | |
| 500 &len, | |
| 501 static_cast<MojoReadDataFlags>(flags)); | |
| 502 if (!Dart_IsNull(typed_data)) { | |
| 503 Dart_TypedDataReleaseData(typed_data); | |
| 504 } | |
| 505 | |
| 506 Dart_Handle list = Dart_NewList(2); | |
| 507 Dart_ListSetAt(list, 0, Dart_NewInteger(res)); | |
| 508 Dart_ListSetAt(list, 1, Dart_NewInteger(len)); | |
| 509 Dart_SetReturnValue(arguments, list); | |
| 510 } | |
| 511 | |
| 512 void MojoDataPipe_BeginReadData(Dart_NativeArguments arguments) { | |
| 513 int64_t handle = 0; | |
| 514 int64_t buffer_bytes = 0; | |
| 515 int64_t flags = 0; | |
| 516 CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null); | |
| 517 CHECK_INTEGER_ARGUMENT(arguments, 1, &buffer_bytes, Null); | |
| 518 CHECK_INTEGER_ARGUMENT(arguments, 2, &flags, Null); | |
| 519 | |
| 520 void* buffer; | |
| 521 uint32_t size = static_cast<uint32_t>(buffer_bytes); | |
| 522 MojoResult res = MojoBeginReadData( | |
| 523 static_cast<MojoHandle>(handle), | |
| 524 const_cast<const void**>(&buffer), | |
| 525 &size, | |
| 526 static_cast<MojoWriteDataFlags>(flags)); | |
| 527 | |
| 528 Dart_Handle list = Dart_NewList(2); | |
| 529 Dart_Handle typed_data; | |
| 530 if (res == MOJO_RESULT_OK) { | |
| 531 typed_data = Dart_NewExternalTypedData( | |
| 532 Dart_TypedData_kByteData, buffer, size); | |
| 533 } else { | |
| 534 typed_data = Dart_Null(); | |
| 535 } | |
| 536 Dart_ListSetAt(list, 0, Dart_NewInteger(res)); | |
| 537 Dart_ListSetAt(list, 1, typed_data); | |
| 538 Dart_SetReturnValue(arguments, list); | |
| 539 } | |
| 540 | |
| 541 void MojoDataPipe_EndReadData(Dart_NativeArguments arguments) { | |
| 542 int64_t handle = 0; | |
| 543 int64_t num_bytes_read = 0; | |
| 544 CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, InvalidArgument); | |
| 545 CHECK_INTEGER_ARGUMENT(arguments, 1, &num_bytes_read, InvalidArgument); | |
| 546 | |
| 547 MojoResult res = MojoEndReadData( | |
| 548 static_cast<MojoHandle>(handle), | |
| 549 static_cast<uint32_t>(num_bytes_read)); | |
| 550 | |
| 551 Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res)); | |
| 552 } | |
| 553 | |
| 554 void MojoMessagePipe_Create(Dart_NativeArguments arguments) { | |
| 555 int64_t flags = 0; | |
| 556 CHECK_INTEGER_ARGUMENT(arguments, 0, &flags, Null); | |
| 557 | |
| 558 MojoCreateMessagePipeOptions options; | |
| 559 options.struct_size = sizeof(MojoCreateMessagePipeOptions); | |
| 560 options.flags = static_cast<MojoCreateMessagePipeOptionsFlags>(flags); | |
| 561 | |
| 562 MojoHandle end1 = MOJO_HANDLE_INVALID; | |
| 563 MojoHandle end2 = MOJO_HANDLE_INVALID; | |
| 564 MojoResult res = MojoCreateMessagePipe(&options, &end1, &end2); | |
| 565 | |
| 566 Dart_Handle list = Dart_NewList(3); | |
| 567 Dart_ListSetAt(list, 0, Dart_NewInteger(res)); | |
| 568 Dart_ListSetAt(list, 1, Dart_NewInteger(end1)); | |
| 569 Dart_ListSetAt(list, 2, Dart_NewInteger(end2)); | |
| 570 Dart_SetReturnValue(arguments, list); | |
| 571 } | |
| 572 | |
| 573 void MojoMessagePipe_Write(Dart_NativeArguments arguments) { | |
| 574 int64_t handle = 0; | |
| 575 CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, InvalidArgument); | |
| 576 | |
| 577 Dart_Handle typed_data = Dart_GetNativeArgument(arguments, 1); | |
| 578 if (!Dart_IsTypedData(typed_data) && !Dart_IsNull(typed_data)) { | |
| 579 SetInvalidArgumentReturn(arguments); | |
| 580 return; | |
| 581 } | |
| 582 | |
| 583 int64_t num_bytes = 0; | |
| 584 CHECK_INTEGER_ARGUMENT(arguments, 2, &num_bytes, InvalidArgument); | |
| 585 if ((Dart_IsNull(typed_data) && (num_bytes != 0)) || | |
| 586 (!Dart_IsNull(typed_data) && (num_bytes <= 0))) { | |
| 587 SetInvalidArgumentReturn(arguments); | |
| 588 return; | |
| 589 } | |
| 590 | |
| 591 Dart_Handle handles = Dart_GetNativeArgument(arguments, 3); | |
| 592 if (!Dart_IsList(handles) && !Dart_IsNull(handles)) { | |
| 593 SetInvalidArgumentReturn(arguments); | |
| 594 return; | |
| 595 } | |
| 596 | |
| 597 int64_t flags = 0; | |
| 598 CHECK_INTEGER_ARGUMENT(arguments, 4, &flags, InvalidArgument); | |
| 599 | |
| 600 // Grab the data if there is any. | |
| 601 Dart_TypedData_Type typ; | |
| 602 void* bytes = nullptr; | |
| 603 intptr_t bdlen = 0; | |
| 604 if (!Dart_IsNull(typed_data)) { | |
| 605 Dart_TypedDataAcquireData(typed_data, &typ, &bytes, &bdlen); | |
| 606 } | |
| 607 | |
| 608 // Grab the handles if there are any. | |
| 609 std::unique_ptr<MojoHandle[]> mojo_handles; | |
| 610 intptr_t handles_len = 0; | |
| 611 if (!Dart_IsNull(handles)) { | |
| 612 Dart_ListLength(handles, &handles_len); | |
| 613 if (handles_len > 0) { | |
| 614 mojo_handles.reset(new MojoHandle[handles_len]); | |
| 615 } | |
| 616 for (int i = 0; i < handles_len; i++) { | |
| 617 Dart_Handle dart_handle = Dart_ListGetAt(handles, i); | |
| 618 if (!Dart_IsInteger(dart_handle)) { | |
| 619 SetInvalidArgumentReturn(arguments); | |
| 620 return; | |
| 621 } | |
| 622 int64_t mojo_handle = 0; | |
| 623 Dart_IntegerToInt64(dart_handle, &mojo_handle); | |
| 624 mojo_handles[i] = static_cast<MojoHandle>(mojo_handle); | |
| 625 } | |
| 626 } | |
| 627 | |
| 628 MojoResult res = MojoWriteMessage( | |
| 629 static_cast<MojoHandle>(handle), | |
| 630 const_cast<const void*>(bytes), | |
| 631 static_cast<uint32_t>(num_bytes), | |
| 632 mojo_handles.get(), | |
| 633 static_cast<uint32_t>(handles_len), | |
| 634 static_cast<MojoWriteMessageFlags>(flags)); | |
| 635 | |
| 636 // Release the data. | |
| 637 if (!Dart_IsNull(typed_data)) { | |
| 638 Dart_TypedDataReleaseData(typed_data); | |
| 639 } | |
| 640 | |
| 641 Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res)); | |
| 642 } | |
| 643 | |
| 644 void MojoMessagePipe_Read(Dart_NativeArguments arguments) { | |
| 645 int64_t handle = 0; | |
| 646 CHECK_INTEGER_ARGUMENT(arguments, 0, &handle, Null); | |
| 647 | |
| 648 Dart_Handle typed_data = Dart_GetNativeArgument(arguments, 1); | |
| 649 if (!Dart_IsTypedData(typed_data) && !Dart_IsNull(typed_data)) { | |
| 650 SetNullReturn(arguments); | |
| 651 return; | |
| 652 } | |
| 653 // When querying the amount of data available to read from the pipe, | |
| 654 // null is passed in for typed_data. | |
| 655 | |
| 656 int64_t num_bytes = 0; | |
| 657 CHECK_INTEGER_ARGUMENT(arguments, 2, &num_bytes, Null); | |
| 658 if ((Dart_IsNull(typed_data) && (num_bytes != 0)) || | |
| 659 (!Dart_IsNull(typed_data) && (num_bytes <= 0))) { | |
| 660 SetNullReturn(arguments); | |
| 661 return; | |
| 662 } | |
| 663 | |
| 664 Dart_Handle handles = Dart_GetNativeArgument(arguments, 3); | |
| 665 if (!Dart_IsList(handles) && !Dart_IsNull(handles)) { | |
| 666 SetNullReturn(arguments); | |
| 667 return; | |
| 668 } | |
| 669 | |
| 670 int64_t flags = 0; | |
| 671 CHECK_INTEGER_ARGUMENT(arguments, 4, &flags, Null); | |
| 672 | |
| 673 // Grab the data if there is any. | |
| 674 Dart_TypedData_Type typ; | |
| 675 void* bytes = nullptr; | |
| 676 intptr_t byte_data_len = 0; | |
| 677 if (!Dart_IsNull(typed_data)) { | |
| 678 Dart_TypedDataAcquireData(typed_data, &typ, &bytes, &byte_data_len); | |
| 679 } | |
| 680 uint32_t blen = static_cast<uint32_t>(num_bytes); | |
| 681 | |
| 682 // Grab the handles if there are any. | |
| 683 std::unique_ptr<MojoHandle[]> mojo_handles; | |
| 684 intptr_t handles_len = 0; | |
| 685 if (!Dart_IsNull(handles)) { | |
| 686 Dart_ListLength(handles, &handles_len); | |
| 687 mojo_handles.reset(new MojoHandle[handles_len]); | |
| 688 } | |
| 689 uint32_t hlen = static_cast<uint32_t>(handles_len); | |
| 690 | |
| 691 MojoResult res = MojoReadMessage( | |
| 692 static_cast<MojoHandle>(handle), | |
| 693 bytes, | |
| 694 &blen, | |
| 695 mojo_handles.get(), | |
| 696 &hlen, | |
| 697 static_cast<MojoReadMessageFlags>(flags)); | |
| 698 | |
| 699 // Release the data. | |
| 700 if (!Dart_IsNull(typed_data)) { | |
| 701 Dart_TypedDataReleaseData(typed_data); | |
| 702 } | |
| 703 | |
| 704 if (!Dart_IsNull(handles)) { | |
| 705 for (int i = 0; i < handles_len; i++) { | |
| 706 Dart_ListSetAt(handles, i, Dart_NewInteger(mojo_handles[i])); | |
| 707 } | |
| 708 } | |
| 709 | |
| 710 Dart_Handle list = Dart_NewList(3); | |
| 711 Dart_ListSetAt(list, 0, Dart_NewInteger(res)); | |
| 712 Dart_ListSetAt(list, 1, Dart_NewInteger(blen)); | |
| 713 Dart_ListSetAt(list, 2, Dart_NewInteger(hlen)); | |
| 714 Dart_SetReturnValue(arguments, list); | |
| 715 } | |
| 716 | |
| 717 struct MojoWaitManyState { | |
| 718 MojoWaitManyState() {} | |
| 719 | |
| 720 std::vector<uint32_t> handles; | |
| 721 std::vector<uint32_t> signals; | |
| 722 std::vector<uint32_t> out_index; | |
| 723 std::vector<MojoHandleSignalsState> out_signals; | |
| 724 | |
| 725 static MojoWaitManyState* GetInstance(); | |
| 726 | |
| 727 private: | |
| 728 MOJO_DISALLOW_COPY_AND_ASSIGN(MojoWaitManyState); | |
| 729 }; | |
| 730 | |
| 731 // This global is safe because it is only accessed by the single handle watcher | |
| 732 // isolate. If multiple handle watcher isolates are ever needed, it will need | |
| 733 // to be replicated. | |
| 734 MojoWaitManyState* MojoWaitManyState::GetInstance() { | |
| 735 static MojoWaitManyState* state = new MojoWaitManyState; | |
| 736 return state; | |
| 737 } | |
| 738 | |
| 739 void MojoHandleWatcher_GrowStateArrays(Dart_NativeArguments arguments) { | |
| 740 int64_t new_length; | |
| 741 CHECK_INTEGER_ARGUMENT(arguments, 0, &new_length, InvalidArgument); | |
| 742 | |
| 743 MojoWaitManyState& handle_watcher_wait_state = | |
| 744 *MojoWaitManyState::GetInstance(); | |
| 745 | |
| 746 handle_watcher_wait_state.handles.resize(new_length); | |
| 747 handle_watcher_wait_state.signals.resize(new_length); | |
| 748 handle_watcher_wait_state.out_index.resize(1); | |
| 749 handle_watcher_wait_state.out_signals.resize(new_length); | |
| 750 | |
| 751 Dart_Handle dart_handles = Dart_NewExternalTypedData( | |
| 752 Dart_TypedData_kUint32, handle_watcher_wait_state.handles.data(), | |
| 753 handle_watcher_wait_state.handles.size()); | |
| 754 if (Dart_IsError(dart_handles)) { | |
| 755 Dart_PropagateError(dart_handles); | |
| 756 } | |
| 757 if (Dart_IsNull(dart_handles)) { | |
| 758 SetNullReturn(arguments); | |
| 759 return; | |
| 760 } | |
| 761 | |
| 762 Dart_Handle dart_signals = Dart_NewExternalTypedData( | |
| 763 Dart_TypedData_kUint32, handle_watcher_wait_state.signals.data(), | |
| 764 handle_watcher_wait_state.signals.size()); | |
| 765 if (Dart_IsError(dart_signals)) { | |
| 766 Dart_PropagateError(dart_signals); | |
| 767 } | |
| 768 if (Dart_IsNull(dart_signals)) { | |
| 769 SetNullReturn(arguments); | |
| 770 return; | |
| 771 } | |
| 772 | |
| 773 Dart_Handle dart_out_index = Dart_NewExternalTypedData( | |
| 774 Dart_TypedData_kUint32, handle_watcher_wait_state.out_index.data(), | |
| 775 handle_watcher_wait_state.out_index.size()); | |
| 776 if (Dart_IsError(dart_out_index)) { | |
| 777 Dart_PropagateError(dart_out_index); | |
| 778 } | |
| 779 if (Dart_IsNull(dart_out_index)) { | |
| 780 SetNullReturn(arguments); | |
| 781 return; | |
| 782 } | |
| 783 | |
| 784 Dart_Handle dart_out_signals = Dart_NewExternalTypedData( | |
| 785 Dart_TypedData_kUint64, handle_watcher_wait_state.out_signals.data(), | |
| 786 handle_watcher_wait_state.out_signals.size()); | |
| 787 if (Dart_IsError(dart_out_signals)) { | |
| 788 Dart_PropagateError(dart_out_signals); | |
| 789 } | |
| 790 if (Dart_IsNull(dart_out_signals)) { | |
| 791 SetNullReturn(arguments); | |
| 792 return; | |
| 793 } | |
| 794 | |
| 795 Dart_Handle list = Dart_NewList(4); | |
| 796 Dart_ListSetAt(list, 0, dart_handles); | |
| 797 Dart_ListSetAt(list, 1, dart_signals); | |
| 798 Dart_ListSetAt(list, 2, dart_out_index); | |
| 799 Dart_ListSetAt(list, 3, dart_out_signals); | |
| 800 Dart_SetReturnValue(arguments, list); | |
| 801 } | |
| 802 | |
| 803 void MojoHandleWatcher_WaitMany(Dart_NativeArguments arguments) { | |
| 804 int64_t handles_len = 0; | |
| 805 int64_t deadline = 0; | |
| 806 CHECK_INTEGER_ARGUMENT(arguments, 0, &handles_len, InvalidArgument); | |
| 807 CHECK_INTEGER_ARGUMENT(arguments, 1, &deadline, InvalidArgument); | |
| 808 | |
| 809 MojoWaitManyState& handle_watcher_wait_state = | |
| 810 *MojoWaitManyState::GetInstance(); | |
| 811 | |
| 812 uint32_t* handles = handle_watcher_wait_state.handles.data(); | |
| 813 uint32_t* signals = handle_watcher_wait_state.signals.data(); | |
| 814 uint32_t* out_index = handle_watcher_wait_state.out_index.data(); | |
| 815 MojoHandleSignalsState* out_signals = | |
| 816 handle_watcher_wait_state.out_signals.data(); | |
| 817 | |
| 818 Dart_IsolateBlocked(); | |
| 819 MojoResult mojo_result = MojoWaitMany(handles, signals, handles_len, deadline, | |
| 820 out_index, out_signals); | |
| 821 Dart_IsolateUnblocked(); | |
| 822 | |
| 823 Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(mojo_result)); | |
| 824 } | |
| 825 | |
| 826 struct ControlData { | |
| 827 int64_t handle; | |
| 828 Dart_Port port; | |
| 829 int64_t data; | |
| 830 }; | |
| 831 | |
| 832 void MojoHandleWatcher_SendControlData(Dart_NativeArguments arguments) { | |
| 833 int64_t control_handle = 0; | |
| 834 int64_t client_handle = 0; | |
| 835 CHECK_INTEGER_ARGUMENT(arguments, 0, &control_handle, InvalidArgument); | |
| 836 CHECK_INTEGER_ARGUMENT(arguments, 1, &client_handle, InvalidArgument); | |
| 837 | |
| 838 Dart_Handle send_port_handle = Dart_GetNativeArgument(arguments, 2); | |
| 839 Dart_Port send_port_id = ILLEGAL_PORT; | |
| 840 if (!Dart_IsNull(send_port_handle)) { | |
| 841 Dart_Handle result = Dart_SendPortGetId(send_port_handle, &send_port_id); | |
| 842 if (Dart_IsError(result)) { | |
| 843 SetInvalidArgumentReturn(arguments); | |
| 844 return; | |
| 845 } | |
| 846 } | |
| 847 | |
| 848 int64_t data = 0; | |
| 849 CHECK_INTEGER_ARGUMENT(arguments, 3, &data, InvalidArgument); | |
| 850 | |
| 851 ControlData cd; | |
| 852 cd.handle = client_handle; | |
| 853 cd.port = send_port_id; | |
| 854 cd.data = data; | |
| 855 const void* bytes = reinterpret_cast<const void*>(&cd); | |
| 856 MojoResult res = MojoWriteMessage( | |
| 857 control_handle, bytes, sizeof(cd), nullptr, 0, 0); | |
| 858 Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(res)); | |
| 859 } | |
| 860 | |
| 861 void MojoHandleWatcher_RecvControlData(Dart_NativeArguments arguments) { | |
| 862 int64_t control_handle = 0; | |
| 863 CHECK_INTEGER_ARGUMENT(arguments, 0, &control_handle, Null); | |
| 864 | |
| 865 ControlData cd; | |
| 866 void* bytes = reinterpret_cast<void*>(&cd); | |
| 867 uint32_t num_bytes = sizeof(cd); | |
| 868 uint32_t num_handles = 0; | |
| 869 MojoResult res = MojoReadMessage( | |
| 870 control_handle, bytes, &num_bytes, nullptr, &num_handles, 0); | |
| 871 if (res != MOJO_RESULT_OK) { | |
| 872 SetNullReturn(arguments); | |
| 873 return; | |
| 874 } | |
| 875 | |
| 876 Dart_Handle list = Dart_NewList(3); | |
| 877 Dart_ListSetAt(list, 0, Dart_NewInteger(cd.handle)); | |
| 878 if (cd.port != ILLEGAL_PORT) { | |
| 879 Dart_ListSetAt(list, 1, Dart_NewSendPort(cd.port)); | |
| 880 } | |
| 881 Dart_ListSetAt(list, 2, Dart_NewInteger(cd.data)); | |
| 882 Dart_SetReturnValue(arguments, list); | |
| 883 } | |
| 884 | |
| 885 static int64_t mojo_control_handle = MOJO_HANDLE_INVALID; | |
| 886 void MojoHandleWatcher_SetControlHandle(Dart_NativeArguments arguments) { | |
| 887 int64_t control_handle; | |
| 888 CHECK_INTEGER_ARGUMENT(arguments, 0, &control_handle, InvalidArgument); | |
| 889 mojo_control_handle = control_handle; | |
| 890 Dart_SetIntegerReturnValue(arguments, static_cast<int64_t>(MOJO_RESULT_OK)); | |
| 891 } | |
| 892 | |
| 893 void MojoHandleWatcher_GetControlHandle(Dart_NativeArguments arguments) { | |
| 894 Dart_SetIntegerReturnValue(arguments, mojo_control_handle); | |
| 895 } | |
| 896 | |
| 897 } // namespace dart | |
| 898 } // namespace mojo | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1417523003:
Move implementation of dart:mojo.internal to mojo/public/platform/dart (Closed)
Base URL: git@github.com:domokit/mojo.git@master