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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 MOJO_EDK_SYSTEM_MESSAGE_PIPE_DISPATCHER_H_ | 5 #ifndef MOJO_EDK_SYSTEM_MESSAGE_PIPE_DISPATCHER_H_ |
| 6 #define MOJO_EDK_SYSTEM_MESSAGE_PIPE_DISPATCHER_H_ | 6 #define MOJO_EDK_SYSTEM_MESSAGE_PIPE_DISPATCHER_H_ |
| 7 | 7 |
| 8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
| 9 #include "mojo/edk/system/dispatcher.h" | 9 #include "mojo/edk/system/dispatcher.h" |
| 10 #include "mojo/edk/system/memory.h" | 10 #include "mojo/edk/system/memory.h" |
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| 35 // Validates and/or sets default options for |MojoCreateMessagePipeOptions|. | 35 // Validates and/or sets default options for |MojoCreateMessagePipeOptions|. |
| 36 // If non-null, |in_options| must point to a struct of at least | 36 // If non-null, |in_options| must point to a struct of at least |
| 37 // |in_options->struct_size| bytes. |out_options| must point to a (current) | 37 // |in_options->struct_size| bytes. |out_options| must point to a (current) |
| 38 // |MojoCreateMessagePipeOptions| and will be entirely overwritten on success | 38 // |MojoCreateMessagePipeOptions| and will be entirely overwritten on success |
| 39 // (it may be partly overwritten on failure). | 39 // (it may be partly overwritten on failure). |
| 40 static MojoResult ValidateCreateOptions( | 40 static MojoResult ValidateCreateOptions( |
| 41 UserPointer<const MojoCreateMessagePipeOptions> in_options, | 41 UserPointer<const MojoCreateMessagePipeOptions> in_options, |
| 42 MojoCreateMessagePipeOptions* out_options); | 42 MojoCreateMessagePipeOptions* out_options); |
| 43 | 43 |
| 44 // Must be called before any other methods. (This method is not thread-safe.) | 44 // Must be called before any other methods. (This method is not thread-safe.) |
| 45 void Init(scoped_refptr<MessagePipe> message_pipe, | 45 void Init(RefPtr<MessagePipe>&& message_pipe, |
| 46 unsigned port) MOJO_NOT_THREAD_SAFE; | 46 unsigned port) MOJO_NOT_THREAD_SAFE; |
| 47 | 47 |
| 48 // |Dispatcher| public methods: | 48 // |Dispatcher| public methods: |
| 49 Type GetType() const override; | 49 Type GetType() const override; |
| 50 | 50 |
| 51 // Creates a |MessagePipe| with a local endpoint (at port 0) and a proxy | 51 // Creates a |MessagePipe| with a local endpoint (at port 0) and a proxy |
| 52 // endpoint, and creates/initializes a |MessagePipeDispatcher| (attached to | 52 // endpoint, and creates/initializes a |MessagePipeDispatcher| (attached to |
| 53 // the message pipe, port 0). | 53 // the message pipe, port 0). |
| 54 // TODO(vtl): This currently uses |kDefaultCreateOptions|, which is okay since | 54 // TODO(vtl): This currently uses |kDefaultCreateOptions|, which is okay since |
| 55 // there aren't any options, but eventually options should be plumbed through. | 55 // there aren't any options, but eventually options should be plumbed through. |
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| 103 size_t* max_platform_handles) override | 103 size_t* max_platform_handles) override |
| 104 MOJO_NOT_THREAD_SAFE; | 104 MOJO_NOT_THREAD_SAFE; |
| 105 bool EndSerializeAndCloseImplNoLock( | 105 bool EndSerializeAndCloseImplNoLock( |
| 106 Channel* channel, | 106 Channel* channel, |
| 107 void* destination, | 107 void* destination, |
| 108 size_t* actual_size, | 108 size_t* actual_size, |
| 109 embedder::PlatformHandleVector* platform_handles) override | 109 embedder::PlatformHandleVector* platform_handles) override |
| 110 MOJO_NOT_THREAD_SAFE; | 110 MOJO_NOT_THREAD_SAFE; |
| 111 | 111 |
| 112 // This will be null if closed. | 112 // This will be null if closed. |
| 113 scoped_refptr<MessagePipe> message_pipe_ MOJO_GUARDED_BY(mutex()); | 113 RefPtr<MessagePipe> message_pipe_ MOJO_GUARDED_BY(mutex()); |
| 114 unsigned port_ MOJO_GUARDED_BY(mutex()); | 114 unsigned port_ MOJO_GUARDED_BY(mutex()); |
| 115 | 115 |
| 116 MOJO_DISALLOW_COPY_AND_ASSIGN(MessagePipeDispatcher); | 116 MOJO_DISALLOW_COPY_AND_ASSIGN(MessagePipeDispatcher); |
| 117 }; | 117 }; |
| 118 | 118 |
| 119 class MessagePipeDispatcherTransport : public DispatcherTransport { | 119 class MessagePipeDispatcherTransport : public DispatcherTransport { |
| 120 public: | 120 public: |
| 121 explicit MessagePipeDispatcherTransport(DispatcherTransport transport); | 121 explicit MessagePipeDispatcherTransport(DispatcherTransport transport); |
| 122 | 122 |
| 123 MessagePipe* GetMessagePipe() { | 123 MessagePipe* GetMessagePipe() { |
| 124 return message_pipe_dispatcher()->GetMessagePipeNoLock(); | 124 return message_pipe_dispatcher()->GetMessagePipeNoLock(); |
| 125 } | 125 } |
| 126 unsigned GetPort() { return message_pipe_dispatcher()->GetPortNoLock(); } | 126 unsigned GetPort() { return message_pipe_dispatcher()->GetPortNoLock(); } |
| 127 | 127 |
| 128 private: | 128 private: |
| 129 MessagePipeDispatcher* message_pipe_dispatcher() { | 129 MessagePipeDispatcher* message_pipe_dispatcher() { |
| 130 return static_cast<MessagePipeDispatcher*>(dispatcher()); | 130 return static_cast<MessagePipeDispatcher*>(dispatcher()); |
| 131 } | 131 } |
| 132 | 132 |
| 133 // Copy and assign allowed. | 133 // Copy and assign allowed. |
| 134 }; | 134 }; |
| 135 | 135 |
| 136 } // namespace system | 136 } // namespace system |
| 137 } // namespace mojo | 137 } // namespace mojo |
| 138 | 138 |
| 139 #endif // MOJO_EDK_SYSTEM_MESSAGE_PIPE_DISPATCHER_H_ | 139 #endif // MOJO_EDK_SYSTEM_MESSAGE_PIPE_DISPATCHER_H_ |
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