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 "mojo/embedder/channel_init.h" 6 7 #include "base/bind.h" 8 #include "base/message_loop/message_loop.h" 9 #include "mojo/embedder/embedder.h" 10 11 namespace mojo { 12 namespace embedder { 13 14 ChannelInit::ChannelInit() : channel_info_(nullptr), weak_factory_(this) { 15 } 16 17 ChannelInit::~ChannelInit() { 18 if (channel_info_) 19 DestroyChannel(channel_info_); 20 } 21 22 ScopedMessagePipeHandle ChannelInit::Init( 23 base::PlatformFile file, 24 scoped_refptr<base::TaskRunner> io_thread_task_runner) { 25 DCHECK(!io_thread_task_runner_.get()); // Should only init once. 26 io_thread_task_runner_ = io_thread_task_runner; 27 ScopedMessagePipeHandle message_pipe = 28 CreateChannel(ScopedPlatformHandle(PlatformHandle(file)), 29 io_thread_task_runner, 30 base::Bind(&ChannelInit::OnCreatedChannel, 31 weak_factory_.GetWeakPtr(), 32 io_thread_task_runner), 33 base::MessageLoop::current()->message_loop_proxy()).Pass(); 34 return message_pipe.Pass(); 35 } 36 37 void ChannelInit::WillDestroySoon() { 38 if (channel_info_) 39 WillDestroyChannelSoon(channel_info_); 40 } 41 42 // static 43 void ChannelInit::OnCreatedChannel(base::WeakPtr<ChannelInit> self, 44 scoped_refptr<base::TaskRunner> io_thread, 45 ChannelInfo* channel) { 46 // If |self| was already destroyed, shut the channel down. 47 if (!self) { 48 DestroyChannel(channel); 49 return; 50 } 51 52 self->channel_info_ = channel; 53 } 54 55 } // namespace embedder 56 } // namespace mojo 57
