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