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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "mojo/edk/system/remote_consumer_data_pipe_impl.h" | 5 #include "mojo/edk/system/remote_consumer_data_pipe_impl.h" |
| 6 | 6 |
| 7 #include <string.h> | 7 #include <string.h> |
| 8 | 8 |
| 9 #include <algorithm> | 9 #include <algorithm> |
| 10 #include <memory> | 10 #include <memory> |
| 11 #include <utility> | 11 #include <utility> |
| 12 | 12 |
| 13 #include "base/logging.h" | 13 #include "base/logging.h" |
| 14 #include "mojo/edk/system/channel.h" | 14 #include "mojo/edk/system/channel.h" |
| 15 #include "mojo/edk/system/channel_endpoint.h" | 15 #include "mojo/edk/system/channel_endpoint.h" |
| 16 #include "mojo/edk/system/configuration.h" | 16 #include "mojo/edk/system/configuration.h" |
| 17 #include "mojo/edk/system/data_pipe.h" | 17 #include "mojo/edk/system/data_pipe.h" |
| 18 #include "mojo/edk/system/message_in_transit.h" | 18 #include "mojo/edk/system/message_in_transit.h" |
| 19 #include "mojo/edk/system/remote_data_pipe_ack.h" | 19 #include "mojo/edk/system/remote_data_pipe_ack.h" |
| 20 | 20 |
| 21 using mojo::embedder::ScopedPlatformHandle; |
| 21 using mojo::util::RefPtr; | 22 using mojo::util::RefPtr; |
| 22 | 23 |
| 23 namespace mojo { | 24 namespace mojo { |
| 24 namespace system { | 25 namespace system { |
| 25 | 26 |
| 26 namespace { | 27 namespace { |
| 27 | 28 |
| 28 bool ValidateIncomingMessage(size_t element_num_bytes, | 29 bool ValidateIncomingMessage(size_t element_num_bytes, |
| 29 size_t capacity_num_bytes, | 30 size_t capacity_num_bytes, |
| 30 size_t consumer_num_bytes, | 31 size_t consumer_num_bytes, |
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| 271 size_t* max_platform_handles) { | 272 size_t* max_platform_handles) { |
| 272 *max_size = sizeof(SerializedDataPipeProducerDispatcher) + | 273 *max_size = sizeof(SerializedDataPipeProducerDispatcher) + |
| 273 channel->GetSerializedEndpointSize(); | 274 channel->GetSerializedEndpointSize(); |
| 274 *max_platform_handles = 0; | 275 *max_platform_handles = 0; |
| 275 } | 276 } |
| 276 | 277 |
| 277 bool RemoteConsumerDataPipeImpl::ProducerEndSerialize( | 278 bool RemoteConsumerDataPipeImpl::ProducerEndSerialize( |
| 278 Channel* channel, | 279 Channel* channel, |
| 279 void* destination, | 280 void* destination, |
| 280 size_t* actual_size, | 281 size_t* actual_size, |
| 281 embedder::PlatformHandleVector* platform_handles) { | 282 std::vector<ScopedPlatformHandle>* /*platform_handles*/) { |
| 282 SerializedDataPipeProducerDispatcher* s = | 283 SerializedDataPipeProducerDispatcher* s = |
| 283 static_cast<SerializedDataPipeProducerDispatcher*>(destination); | 284 static_cast<SerializedDataPipeProducerDispatcher*>(destination); |
| 284 s->validated_options = validated_options(); | 285 s->validated_options = validated_options(); |
| 285 void* destination_for_endpoint = static_cast<char*>(destination) + | 286 void* destination_for_endpoint = static_cast<char*>(destination) + |
| 286 sizeof(SerializedDataPipeProducerDispatcher); | 287 sizeof(SerializedDataPipeProducerDispatcher); |
| 287 | 288 |
| 288 if (!consumer_open()) { | 289 if (!consumer_open()) { |
| 289 // Case 1: The consumer is closed. | 290 // Case 1: The consumer is closed. |
| 290 s->consumer_num_bytes = static_cast<size_t>(-1); | 291 s->consumer_num_bytes = static_cast<size_t>(-1); |
| 291 *actual_size = sizeof(SerializedDataPipeProducerDispatcher); | 292 *actual_size = sizeof(SerializedDataPipeProducerDispatcher); |
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| 358 Channel* /*channel*/, | 359 Channel* /*channel*/, |
| 359 size_t* /*max_size*/, | 360 size_t* /*max_size*/, |
| 360 size_t* /*max_platform_handles*/) { | 361 size_t* /*max_platform_handles*/) { |
| 361 NOTREACHED(); | 362 NOTREACHED(); |
| 362 } | 363 } |
| 363 | 364 |
| 364 bool RemoteConsumerDataPipeImpl::ConsumerEndSerialize( | 365 bool RemoteConsumerDataPipeImpl::ConsumerEndSerialize( |
| 365 Channel* /*channel*/, | 366 Channel* /*channel*/, |
| 366 void* /*destination*/, | 367 void* /*destination*/, |
| 367 size_t* /*actual_size*/, | 368 size_t* /*actual_size*/, |
| 368 embedder::PlatformHandleVector* /*platform_handles*/) { | 369 std::vector<ScopedPlatformHandle>* /*platform_handles*/) { |
| 369 NOTREACHED(); | 370 NOTREACHED(); |
| 370 return false; | 371 return false; |
| 371 } | 372 } |
| 372 | 373 |
| 373 bool RemoteConsumerDataPipeImpl::OnReadMessage(unsigned /*port*/, | 374 bool RemoteConsumerDataPipeImpl::OnReadMessage(unsigned /*port*/, |
| 374 MessageInTransit* message) { | 375 MessageInTransit* message) { |
| 375 // Always take ownership of the message. (This means that we should always | 376 // Always take ownership of the message. (This means that we should always |
| 376 // return true.) | 377 // return true.) |
| 377 std::unique_ptr<MessageInTransit> msg(message); | 378 std::unique_ptr<MessageInTransit> msg(message); |
| 378 | 379 |
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| 422 DCHECK(channel_endpoint_); | 423 DCHECK(channel_endpoint_); |
| 423 SetConsumerClosed(); | 424 SetConsumerClosed(); |
| 424 channel_endpoint_->DetachFromClient(); | 425 channel_endpoint_->DetachFromClient(); |
| 425 channel_endpoint_ = nullptr; | 426 channel_endpoint_ = nullptr; |
| 426 if (!producer_in_two_phase_write()) | 427 if (!producer_in_two_phase_write()) |
| 427 DestroyBuffer(); | 428 DestroyBuffer(); |
| 428 } | 429 } |
| 429 | 430 |
| 430 } // namespace system | 431 } // namespace system |
| 431 } // namespace mojo | 432 } // namespace mojo |
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