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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 #ifndef CONTENT_COMMON_MOJO_CHANNEL_INIT_H_ | 5 #ifndef CONTENT_COMMON_MOJO_CHANNEL_INIT_H_ |
6 #define CONTENT_COMMON_MOJO_CHANNEL_INIT_H_ | 6 #define CONTENT_COMMON_MOJO_CHANNEL_INIT_H_ |
7 | 7 |
| 8 #include "base/callback.h" |
8 #include "base/files/file.h" | 9 #include "base/files/file.h" |
9 #include "base/macros.h" | 10 #include "base/macros.h" |
10 #include "base/memory/ref_counted.h" | 11 #include "base/memory/ref_counted.h" |
11 #include "base/memory/weak_ptr.h" | 12 #include "base/memory/weak_ptr.h" |
12 #include "content/common/content_export.h" | 13 #include "content/common/content_export.h" |
13 #include "ipc/mojo/scoped_ipc_support.h" | 14 #include "ipc/mojo/scoped_ipc_support.h" |
14 #include "mojo/public/cpp/system/message_pipe.h" | 15 #include "mojo/public/cpp/system/message_pipe.h" |
15 #include "third_party/mojo/src/mojo/edk/embedder/channel_info_forward.h" | 16 #include "third_party/mojo/src/mojo/edk/embedder/channel_info_forward.h" |
16 | 17 |
17 namespace base { | 18 namespace base { |
18 class TaskRunner; | 19 class TaskRunner; |
19 } | 20 } |
20 | 21 |
21 namespace content { | 22 namespace content { |
22 | 23 |
23 // ChannelInit handles creation and destruction of the Mojo channel. It is not | 24 // ChannelInit handles creation and destruction of the Mojo channel. It is not |
24 // thread-safe, but may be used on any single thread with a MessageLoop. | 25 // thread-safe, but may be used on any single thread with a MessageLoop. |
25 class CONTENT_EXPORT ChannelInit { | 26 class CONTENT_EXPORT ChannelInit { |
26 public: | 27 public: |
27 ChannelInit(); | 28 ChannelInit(); |
28 ~ChannelInit(); | 29 ~ChannelInit(); |
29 | 30 |
30 // Initializes the channel. This takes ownership of |file|. Returns the | 31 // Initializes the channel. This takes ownership of |file|. Calls |callback| |
31 // primordial MessagePipe for the channel. | 32 // on the calling thread once the pipe is created. |
32 mojo::ScopedMessagePipeHandle Init( | 33 void Init( |
33 base::PlatformFile file, | 34 base::PlatformFile file, |
34 scoped_refptr<base::TaskRunner> io_thread_task_runner); | 35 scoped_refptr<base::TaskRunner> io_thread_task_runner, |
| 36 const base::Callback<void(mojo::ScopedMessagePipeHandle)>& callback); |
35 | 37 |
36 // Notifies the channel that we (hence it) will soon be destroyed. | 38 // Notifies the channel that we (hence it) will soon be destroyed. |
37 void WillDestroySoon(); | 39 void WillDestroySoon(); |
38 | 40 |
39 private: | 41 private: |
40 // Invoked on the thread on which this object lives once the channel has been | 42 // Invoked on the thread on which this object lives once the channel has been |
41 // established. This is a static method that takes a weak pointer to self, | 43 // established. This is a static method that takes a weak pointer to self, |
42 // since we want to destroy the channel if we were destroyed first. | 44 // since we want to destroy the channel if we were destroyed first. |
43 static void OnCreatedChannel( | 45 static void OnCreatedChannel( |
44 base::WeakPtr<ChannelInit> self, | 46 base::WeakPtr<ChannelInit> self, |
45 scoped_ptr<IPC::ScopedIPCSupport> ipc_support, | 47 scoped_ptr<IPC::ScopedIPCSupport> ipc_support, |
46 mojo::embedder::ChannelInfo* channel); | 48 mojo::embedder::ChannelInfo* channel); |
47 | 49 |
| 50 // Callback used with the new ports EDK on pipe creation. |
| 51 void OnCreateMessagePipe( |
| 52 scoped_ptr<IPC::ScopedIPCSupport> ipc_support, |
| 53 const base::Callback<void(mojo::ScopedMessagePipeHandle)>& callback, |
| 54 mojo::ScopedMessagePipeHandle pipe); |
| 55 |
48 // If non-null the channel has been established. | 56 // If non-null the channel has been established. |
49 mojo::embedder::ChannelInfo* channel_info_; | 57 mojo::embedder::ChannelInfo* channel_info_; |
50 | 58 |
51 scoped_ptr<IPC::ScopedIPCSupport> ipc_support_; | 59 scoped_ptr<IPC::ScopedIPCSupport> ipc_support_; |
52 base::WeakPtrFactory<ChannelInit> weak_factory_; | 60 base::WeakPtrFactory<ChannelInit> weak_factory_; |
53 | 61 |
54 DISALLOW_COPY_AND_ASSIGN(ChannelInit); | 62 DISALLOW_COPY_AND_ASSIGN(ChannelInit); |
55 }; | 63 }; |
56 | 64 |
57 } // namespace content | 65 } // namespace content |
58 | 66 |
59 #endif // CONTENT_COMMON_MOJO_CHANNEL_INIT_H_ | 67 #endif // CONTENT_COMMON_MOJO_CHANNEL_INIT_H_ |
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