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 #ifndef MOJO_EMBEDDER_CHANNEL_INIT_H_ 6 #define MOJO_EMBEDDER_CHANNEL_INIT_H_ 7 8 #include "base/memory/ref_counted.h" 9 #include "base/memory/weak_ptr.h" 10 #include "base/platform_file.h" 11 #include "mojo/public/cpp/system/core.h" 12 #include "mojo/system/system_impl_export.h" 13 14 namespace base { 15 class MessageLoopProxy; 16 class TaskRunner; 17 } 18 19 namespace mojo { 20 namespace embedder { 21 struct ChannelInfo; 22 } 23 24 namespace embedder { 25 26 // ChannelInit handle creation (and destruction) of the mojo channel. It is 27 // expected that this class is created and destroyed on the main thread. 28 class MOJO_SYSTEM_IMPL_EXPORT ChannelInit { 29 public: 30 ChannelInit(); 31 ~ChannelInit(); 32 33 // Initializes the channel. This takes ownership of |file|. Returns the 34 // primordial MessagePipe for the channel. 35 mojo::ScopedMessagePipeHandle Init( 36 base::PlatformFile file, 37 scoped_refptr<base::TaskRunner> io_thread_task_runner); 38 39 private: 40 // Invoked on the main thread once the channel has been established. 41 static void OnCreatedChannel( 42 base::WeakPtr<ChannelInit> host, 43 scoped_refptr<base::TaskRunner> io_thread, 44 embedder::ChannelInfo* channel); 45 46 scoped_refptr<base::TaskRunner> io_thread_task_runner_; 47 48 // If non-null the channel has been established. 49 embedder::ChannelInfo* channel_info_; 50 51 base::WeakPtrFactory<ChannelInit> weak_factory_; 52 53 DISALLOW_COPY_AND_ASSIGN(ChannelInit); 54 }; 55 56 } // namespace embedder 57 } // namespace mojo 58 59 #endif // MOJO_EMBEDDER_CHANNEL_INIT_H_ 60
