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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 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 "ipc/mojo/ipc_message_pipe_reader.h" | 5 #include "ipc/mojo/ipc_message_pipe_reader.h" |
| 6 | 6 |
| 7 #include <stdint.h> |
| 8 |
| 7 #include "base/bind.h" | 9 #include "base/bind.h" |
| 8 #include "base/bind_helpers.h" | 10 #include "base/bind_helpers.h" |
| 9 #include "base/location.h" | 11 #include "base/location.h" |
| 10 #include "base/logging.h" | 12 #include "base/logging.h" |
| 11 #include "base/single_thread_task_runner.h" | 13 #include "base/single_thread_task_runner.h" |
| 12 #include "base/thread_task_runner_handle.h" | 14 #include "base/thread_task_runner_handle.h" |
| 13 #include "ipc/mojo/async_handle_waiter.h" | 15 #include "ipc/mojo/async_handle_waiter.h" |
| 14 #include "ipc/mojo/ipc_channel_mojo.h" | 16 #include "ipc/mojo/ipc_channel_mojo.h" |
| 15 | 17 |
| 16 namespace IPC { | 18 namespace IPC { |
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| 70 TRACE_EVENT_WITH_FLOW0(TRACE_DISABLED_BY_DEFAULT("ipc.flow"), | 72 TRACE_EVENT_WITH_FLOW0(TRACE_DISABLED_BY_DEFAULT("ipc.flow"), |
| 71 "MessagePipeReader::Send", | 73 "MessagePipeReader::Send", |
| 72 message->flags(), | 74 message->flags(), |
| 73 TRACE_EVENT_FLAG_FLOW_OUT); | 75 TRACE_EVENT_FLAG_FLOW_OUT); |
| 74 std::vector<MojoHandle> handles; | 76 std::vector<MojoHandle> handles; |
| 75 MojoResult result = MOJO_RESULT_OK; | 77 MojoResult result = MOJO_RESULT_OK; |
| 76 result = ChannelMojo::ReadFromMessageAttachmentSet(message.get(), &handles); | 78 result = ChannelMojo::ReadFromMessageAttachmentSet(message.get(), &handles); |
| 77 if (result == MOJO_RESULT_OK) { | 79 if (result == MOJO_RESULT_OK) { |
| 78 result = MojoWriteMessage(handle(), | 80 result = MojoWriteMessage(handle(), |
| 79 message->data(), | 81 message->data(), |
| 80 static_cast<uint32>(message->size()), | 82 static_cast<uint32_t>(message->size()), |
| 81 handles.empty() ? nullptr : &handles[0], | 83 handles.empty() ? nullptr : &handles[0], |
| 82 static_cast<uint32>(handles.size()), | 84 static_cast<uint32_t>(handles.size()), |
| 83 MOJO_WRITE_MESSAGE_FLAG_NONE); | 85 MOJO_WRITE_MESSAGE_FLAG_NONE); |
| 84 } | 86 } |
| 85 | 87 |
| 86 if (result != MOJO_RESULT_OK) { | 88 if (result != MOJO_RESULT_OK) { |
| 87 std::for_each(handles.begin(), handles.end(), &MojoClose); | 89 std::for_each(handles.begin(), handles.end(), &MojoClose); |
| 88 // We cannot call CloseWithError() here as Send() is protected by | 90 // We cannot call CloseWithError() here as Send() is protected by |
| 89 // ChannelMojo's lock and CloseWithError() could re-enter ChannelMojo. We | 91 // ChannelMojo's lock and CloseWithError() could re-enter ChannelMojo. We |
| 90 // cannot call CloseWithError() also because Send() can be called from | 92 // cannot call CloseWithError() also because Send() can be called from |
| 91 // non-UI thread while OnPipeError() expects to be called on IO thread. | 93 // non-UI thread while OnPipeError() expects to be called on IO thread. |
| 92 CloseWithErrorLater(result); | 94 CloseWithErrorLater(result); |
| 93 return false; | 95 return false; |
| 94 } | 96 } |
| 95 | 97 |
| 96 return true; | 98 return true; |
| 97 } | 99 } |
| 98 | 100 |
| 99 void MessagePipeReader::OnMessageReceived() { | 101 void MessagePipeReader::OnMessageReceived() { |
| 100 Message message(data_buffer().empty() ? "" : &data_buffer()[0], | 102 Message message(data_buffer().empty() ? "" : &data_buffer()[0], |
| 101 static_cast<uint32>(data_buffer().size())); | 103 static_cast<uint32_t>(data_buffer().size())); |
| 102 | 104 |
| 103 std::vector<MojoHandle> handle_buffer; | 105 std::vector<MojoHandle> handle_buffer; |
| 104 TakeHandleBuffer(&handle_buffer); | 106 TakeHandleBuffer(&handle_buffer); |
| 105 MojoResult write_result = | 107 MojoResult write_result = |
| 106 ChannelMojo::WriteToMessageAttachmentSet(handle_buffer, &message); | 108 ChannelMojo::WriteToMessageAttachmentSet(handle_buffer, &message); |
| 107 if (write_result != MOJO_RESULT_OK) { | 109 if (write_result != MOJO_RESULT_OK) { |
| 108 CloseWithError(write_result); | 110 CloseWithError(write_result); |
| 109 return; | 111 return; |
| 110 } | 112 } |
| 111 | 113 |
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| 234 | 236 |
| 235 void MessagePipeReader::DelayedDeleter::operator()( | 237 void MessagePipeReader::DelayedDeleter::operator()( |
| 236 MessagePipeReader* ptr) const { | 238 MessagePipeReader* ptr) const { |
| 237 ptr->Close(); | 239 ptr->Close(); |
| 238 base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, | 240 base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, |
| 239 base::Bind(&DeleteNow, ptr)); | 241 base::Bind(&DeleteNow, ptr)); |
| 240 } | 242 } |
| 241 | 243 |
| 242 } // namespace internal | 244 } // namespace internal |
| 243 } // namespace IPC | 245 } // namespace IPC |
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