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Side by Side Diff: content/common/mojo/channel_init.h

Issue 1676913002: [mojo] Delete third_party/mojo (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: rebase Created 4 years, 10 months ago
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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/callback.h"
9 #include "base/files/file.h" 9 #include "base/files/file.h"
10 #include "base/macros.h" 10 #include "base/macros.h"
11 #include "base/memory/ref_counted.h" 11 #include "base/memory/ref_counted.h"
12 #include "base/memory/weak_ptr.h" 12 #include "base/memory/weak_ptr.h"
13 #include "content/common/content_export.h" 13 #include "content/common/content_export.h"
14 #include "ipc/mojo/scoped_ipc_support.h" 14 #include "ipc/mojo/scoped_ipc_support.h"
15 #include "mojo/public/cpp/system/message_pipe.h" 15 #include "mojo/public/cpp/system/message_pipe.h"
16 #include "third_party/mojo/src/mojo/edk/embedder/channel_info_forward.h"
17 16
18 namespace base { 17 namespace base {
19 class TaskRunner; 18 class TaskRunner;
20 } 19 }
21 20
22 namespace content { 21 namespace content {
23 22
24 // ChannelInit handles creation and destruction of the Mojo channel. It is not 23 // ChannelInit handles creation and destruction of the Mojo channel. It is not
25 // thread-safe, but may be used on any single thread with a MessageLoop. 24 // thread-safe, but may be used on any single thread with a MessageLoop.
26 class CONTENT_EXPORT ChannelInit { 25 class CONTENT_EXPORT ChannelInit {
27 public: 26 public:
28 ChannelInit(); 27 ChannelInit();
29 ~ChannelInit(); 28 ~ChannelInit();
30 29
31 // Initializes the channel. This takes ownership of |file|. Calls |callback| 30 // Initializes the channel. This takes ownership of |file|. Calls |callback|
32 // on the calling thread once the pipe is created. 31 // on the calling thread once the pipe is created.
33 void Init( 32 void Init(
34 base::PlatformFile file, 33 base::PlatformFile file,
35 scoped_refptr<base::TaskRunner> io_thread_task_runner, 34 scoped_refptr<base::TaskRunner> io_thread_task_runner,
36 const base::Callback<void(mojo::ScopedMessagePipeHandle)>& callback); 35 const base::Callback<void(mojo::ScopedMessagePipeHandle)>& callback);
37 36
38 // Notifies the channel that we (hence it) will soon be destroyed.
39 void WillDestroySoon();
40
41 private: 37 private:
42 // Invoked on the thread on which this object lives once the channel has been 38 // Callback called on message pipe creation.
43 // established. This is a static method that takes a weak pointer to self,
44 // since we want to destroy the channel if we were destroyed first.
45 static void OnCreatedChannel(
46 base::WeakPtr<ChannelInit> self,
47 scoped_ptr<IPC::ScopedIPCSupport> ipc_support,
48 mojo::embedder::ChannelInfo* channel);
49
50 // Callback used with the new ports EDK on pipe creation.
51 void OnCreateMessagePipe( 39 void OnCreateMessagePipe(
52 scoped_ptr<IPC::ScopedIPCSupport> ipc_support, 40 scoped_ptr<IPC::ScopedIPCSupport> ipc_support,
53 const base::Callback<void(mojo::ScopedMessagePipeHandle)>& callback, 41 const base::Callback<void(mojo::ScopedMessagePipeHandle)>& callback,
54 mojo::ScopedMessagePipeHandle pipe); 42 mojo::ScopedMessagePipeHandle pipe);
55 43
56 // If non-null the channel has been established.
57 mojo::embedder::ChannelInfo* channel_info_;
58
59 scoped_ptr<IPC::ScopedIPCSupport> ipc_support_; 44 scoped_ptr<IPC::ScopedIPCSupport> ipc_support_;
60 base::WeakPtrFactory<ChannelInit> weak_factory_; 45 base::WeakPtrFactory<ChannelInit> weak_factory_;
61 46
62 DISALLOW_COPY_AND_ASSIGN(ChannelInit); 47 DISALLOW_COPY_AND_ASSIGN(ChannelInit);
63 }; 48 };
64 49
65 } // namespace content 50 } // namespace content
66 51
67 #endif // CONTENT_COMMON_MOJO_CHANNEL_INIT_H_ 52 #endif // CONTENT_COMMON_MOJO_CHANNEL_INIT_H_
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