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| 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 #include "mojo/system/embedder.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/location.h" | |
| 9 #include "base/logging.h" | |
| 10 #include "base/memory/scoped_ptr.h" | |
| 11 #include "mojo/system/channel.h" | |
| 12 #include "mojo/system/core_impl.h" | |
| 13 #include "mojo/system/local_message_pipe_endpoint.h" | |
| 14 #include "mojo/system/message_pipe.h" | |
| 15 #include "mojo/system/message_pipe_dispatcher.h" | |
| 16 #include "mojo/system/proxy_message_pipe_endpoint.h" | |
| 17 | |
| 18 namespace mojo { | |
| 19 namespace embedder { | |
| 20 | |
| 21 struct ChannelInfo { | |
| 22 scoped_refptr<system::Channel> channel; | |
| 23 }; | |
| 24 | |
| 25 static void CreateChannelOnIOThread( | |
| 26 ScopedPlatformHandle platform_handle, | |
| 27 scoped_refptr<system::MessagePipe> message_pipe, | |
| 28 DidCreateChannelOnIOThreadCallback callback) { | |
| 29 CHECK(platform_handle.is_valid()); | |
| 30 | |
| 31 scoped_ptr<ChannelInfo> channel_info(new ChannelInfo); | |
| 32 | |
| 33 // Create and initialize a |system::Channel|. | |
| 34 channel_info->channel = new system::Channel(); | |
| 35 bool success = channel_info->channel->Init(platform_handle.Pass()); | |
| 36 DCHECK(success); | |
| 37 | |
| 38 // Attach the message pipe endpoint. | |
| 39 system::MessageInTransit::EndpointId endpoint_id = | |
| 40 channel_info->channel->AttachMessagePipeEndpoint(message_pipe, 1); | |
| 41 DCHECK_EQ(endpoint_id, system::Channel::kBootstrapEndpointId); | |
| 42 channel_info->channel->RunMessagePipeEndpoint( | |
| 43 system::Channel::kBootstrapEndpointId, | |
| 44 system::Channel::kBootstrapEndpointId); | |
| 45 | |
| 46 // Hand the channel back to the embedder. | |
| 47 callback.Run(channel_info.release()); | |
| 48 } | |
| 49 | |
| 50 void Init() { | |
| 51 Core::Init(new system::CoreImpl()); | |
| 52 } | |
| 53 | |
| 54 MojoHandle CreateChannel( | |
| 55 ScopedPlatformHandle platform_handle, | |
| 56 scoped_refptr<base::TaskRunner> io_thread_task_runner, | |
| 57 DidCreateChannelOnIOThreadCallback callback) { | |
| 58 DCHECK(platform_handle.is_valid()); | |
| 59 | |
| 60 scoped_refptr<system::MessagePipe> message_pipe( | |
| 61 new system::MessagePipe(scoped_ptr<system::MessagePipeEndpoint>( | |
| 62 new system::LocalMessagePipeEndpoint()), | |
| 63 scoped_ptr<system::MessagePipeEndpoint>( | |
| 64 new system::ProxyMessagePipeEndpoint()))); | |
| 65 scoped_refptr<system::MessagePipeDispatcher> dispatcher( | |
| 66 new system::MessagePipeDispatcher()); | |
| 67 dispatcher->Init(message_pipe, 0); | |
| 68 | |
| 69 system::CoreImpl* core_impl = static_cast<system::CoreImpl*>(Core::Get()); | |
| 70 DCHECK(core_impl); | |
| 71 MojoHandle rv = core_impl->AddDispatcher(dispatcher); | |
| 72 // TODO(vtl): Do we properly handle the failure case here? | |
| 73 if (rv != MOJO_HANDLE_INVALID) { | |
| 74 io_thread_task_runner->PostTask(FROM_HERE, | |
| 75 base::Bind(&CreateChannelOnIOThread, | |
| 76 base::Passed(&platform_handle), | |
| 77 message_pipe, | |
| 78 callback)); | |
| 79 } | |
| 80 return rv; | |
| 81 } | |
| 82 | |
| 83 void DestroyChannelOnIOThread(ChannelInfo* channel_info) { | |
| 84 DCHECK(channel_info); | |
| 85 DCHECK(channel_info->channel.get()); | |
| 86 channel_info->channel->Shutdown(); | |
| 87 delete channel_info; | |
| 88 } | |
| 89 | |
| 90 } // namespace embedder | |
| 91 } // namespace mojo | |
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Chromium Code Reviews
Issue 139823003:
Mojo: Move system embedder API files to mojo/system/embedder. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src