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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 "mojo/edk/embedder/channel_init.h" | |
6 | |
7 #include "base/bind.h" | |
8 #include "base/message_loop/message_loop.h" | |
9 #include "mojo/edk/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_); // Should only init once. | |
26 io_thread_task_runner_ = io_thread_task_runner; | |
27 ScopedMessagePipeHandle message_pipe = | |
28 CreateChannel( | |
29 ScopedPlatformHandle(PlatformHandle(file)), io_thread_task_runner, | |
30 base::Bind(&ChannelInit::OnCreatedChannel, weak_factory_.GetWeakPtr(), | |
31 io_thread_task_runner), | |
32 base::MessageLoop::current()->message_loop_proxy()).Pass(); | |
33 return message_pipe.Pass(); | |
34 } | |
35 | |
36 void ChannelInit::WillDestroySoon() { | |
37 if (channel_info_) | |
38 WillDestroyChannelSoon(channel_info_); | |
39 } | |
40 | |
41 // static | |
42 void ChannelInit::OnCreatedChannel(base::WeakPtr<ChannelInit> self, | |
43 scoped_refptr<base::TaskRunner> io_thread, | |
44 ChannelInfo* channel) { | |
45 // If |self| was already destroyed, shut the channel down. | |
46 if (!self) { | |
47 DestroyChannel(channel); | |
48 return; | |
49 } | |
50 | |
51 self->channel_info_ = channel; | |
52 } | |
53 | |
54 } // namespace embedder | |
55 } // namespace mojo | |
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