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| 1 // Copyright (c) 2012 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 "remoting/base/plugin_message_loop_proxy.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 | |
| 9 namespace remoting { | |
| 10 | |
| 11 PluginMessageLoopProxy::PluginMessageLoopProxy(Delegate* delegate) | |
| 12 : plugin_thread_id_(base::PlatformThread::CurrentId()), | |
| 13 delegate_(delegate) { | |
| 14 } | |
| 15 | |
| 16 PluginMessageLoopProxy::~PluginMessageLoopProxy() { | |
| 17 } | |
| 18 | |
| 19 void PluginMessageLoopProxy::Detach() { | |
| 20 base::AutoLock auto_lock(lock_); | |
| 21 if (delegate_) { | |
| 22 DCHECK(BelongsToCurrentThread()); | |
| 23 delegate_ = NULL; | |
| 24 } | |
| 25 } | |
| 26 | |
| 27 bool PluginMessageLoopProxy::PostDelayedTask( | |
| 28 const tracked_objects::Location& from_here, | |
| 29 const base::Closure& task, | |
| 30 base::TimeDelta delay) { | |
| 31 base::AutoLock auto_lock(lock_); | |
| 32 if (!delegate_) | |
| 33 return false; | |
| 34 | |
| 35 base::Closure* springpad_closure = new base::Closure(base::Bind( | |
| 36 &PluginMessageLoopProxy::RunClosureIf, this, task)); | |
| 37 return delegate_->RunOnPluginThread( | |
| 38 delay, &PluginMessageLoopProxy::TaskSpringboard, springpad_closure); | |
| 39 } | |
| 40 | |
| 41 bool PluginMessageLoopProxy::PostNonNestableDelayedTask( | |
| 42 const tracked_objects::Location& from_here, | |
| 43 const base::Closure& task, | |
| 44 base::TimeDelta delay) { | |
| 45 // All tasks running on this message loop are non-nestable. | |
| 46 return PostDelayedTask(from_here, task, delay); | |
| 47 } | |
| 48 | |
| 49 bool PluginMessageLoopProxy::RunsTasksOnCurrentThread() const { | |
| 50 // In pepper plugins ideally we should use pp::Core::IsMainThread, | |
| 51 // but it is problematic because we would need to keep reference to | |
| 52 // Core somewhere, e.g. make the delegate ref-counted. | |
| 53 return base::PlatformThread::CurrentId() == plugin_thread_id_; | |
| 54 } | |
| 55 | |
| 56 // static | |
| 57 void PluginMessageLoopProxy::TaskSpringboard(void* data) { | |
| 58 base::Closure* task = reinterpret_cast<base::Closure*>(data); | |
| 59 task->Run(); | |
| 60 delete task; | |
| 61 } | |
| 62 | |
| 63 void PluginMessageLoopProxy::RunClosureIf(const base::Closure& task) { | |
| 64 // |delegate_| can be changed only from our thread, so it's safe to | |
| 65 // access it without acquiring |lock_|. | |
| 66 if (delegate_) | |
| 67 task.Run(); | |
| 68 } | |
| 69 | |
| 70 } // namespace remoting | |
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Chromium Code Reviews
Issue 10830016:
Replace PluginMessageLoopProxy with PluginThreadTaskRunner. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src