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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #include "remoting/base/plugin_message_loop_proxy.h" | 5 #include "remoting/base/plugin_message_loop_proxy.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 | 8 |
9 namespace remoting { | 9 namespace remoting { |
10 | 10 |
11 PluginMessageLoopProxy::PluginMessageLoopProxy(Delegate* delegate) | 11 PluginMessageLoopProxy::PluginMessageLoopProxy(Delegate* delegate) |
12 : plugin_thread_id_(base::PlatformThread::CurrentId()), | 12 : plugin_thread_id_(base::PlatformThread::CurrentId()), |
13 delegate_(delegate) { | 13 delegate_(delegate) { |
14 } | 14 } |
15 | 15 |
16 PluginMessageLoopProxy::~PluginMessageLoopProxy() { | 16 PluginMessageLoopProxy::~PluginMessageLoopProxy() { |
17 } | 17 } |
18 | 18 |
19 void PluginMessageLoopProxy::Detach() { | 19 void PluginMessageLoopProxy::Detach() { |
20 base::AutoLock auto_lock(lock_); | 20 base::AutoLock auto_lock(lock_); |
21 if (delegate_) { | 21 if (delegate_) { |
22 DCHECK(BelongsToCurrentThread()); | 22 DCHECK(BelongsToCurrentThread()); |
23 delegate_ = NULL; | 23 delegate_ = NULL; |
24 } | 24 } |
25 } | 25 } |
26 | 26 |
27 // MessageLoopProxy interface implementation. | |
28 bool PluginMessageLoopProxy::PostTask( | |
29 const tracked_objects::Location& from_here, | |
30 Task* task) { | |
31 return PostDelayedTask(from_here, task, 0); | |
32 } | |
33 | |
34 bool PluginMessageLoopProxy::PostDelayedTask( | |
35 const tracked_objects::Location& from_here, | |
36 Task* task, | |
37 int64 delay_ms) { | |
38 base::AutoLock auto_lock(lock_); | |
39 if (!delegate_) | |
40 return false; | |
41 | |
42 base::Closure* springpad_closure = new base::Closure(base::Bind( | |
43 &PluginMessageLoopProxy::RunTaskIf, this, task)); | |
44 return delegate_->RunOnPluginThread( | |
45 delay_ms, &PluginMessageLoopProxy::TaskSpringboard, springpad_closure); | |
46 } | |
47 | |
48 bool PluginMessageLoopProxy::PostNonNestableTask( | |
49 const tracked_objects::Location& from_here, | |
50 Task* task) { | |
51 // All tasks running on this message loop are non-nestable. | |
52 return PostTask(from_here, task); | |
53 } | |
54 | |
55 bool PluginMessageLoopProxy::PostNonNestableDelayedTask( | |
56 const tracked_objects::Location& from_here, | |
57 Task* task, | |
58 int64 delay_ms) { | |
59 // All tasks running on this message loop are non-nestable. | |
60 return PostDelayedTask(from_here, task, delay_ms); | |
61 } | |
62 | |
63 bool PluginMessageLoopProxy::PostTask( | 27 bool PluginMessageLoopProxy::PostTask( |
64 const tracked_objects::Location& from_here, | 28 const tracked_objects::Location& from_here, |
65 const base::Closure& task) { | 29 const base::Closure& task) { |
66 return PostDelayedTask(from_here, task, 0); | 30 return PostDelayedTask(from_here, task, 0); |
67 } | 31 } |
68 | 32 |
69 bool PluginMessageLoopProxy::PostDelayedTask( | 33 bool PluginMessageLoopProxy::PostDelayedTask( |
70 const tracked_objects::Location& from_here, | 34 const tracked_objects::Location& from_here, |
71 const base::Closure& task, | 35 const base::Closure& task, |
72 int64 delay_ms) { | 36 int64 delay_ms) { |
(...skipping 17 matching lines...) Expand all Loading... |
90 bool PluginMessageLoopProxy::PostNonNestableDelayedTask( | 54 bool PluginMessageLoopProxy::PostNonNestableDelayedTask( |
91 const tracked_objects::Location& from_here, | 55 const tracked_objects::Location& from_here, |
92 const base::Closure& task, | 56 const base::Closure& task, |
93 int64 delay_ms) { | 57 int64 delay_ms) { |
94 // All tasks running on this message loop are non-nestable. | 58 // All tasks running on this message loop are non-nestable. |
95 return PostDelayedTask(from_here, task, delay_ms); | 59 return PostDelayedTask(from_here, task, delay_ms); |
96 } | 60 } |
97 | 61 |
98 bool PluginMessageLoopProxy::BelongsToCurrentThread() { | 62 bool PluginMessageLoopProxy::BelongsToCurrentThread() { |
99 // In pepper plugins ideally we should use pp::Core::IsMainThread, | 63 // In pepper plugins ideally we should use pp::Core::IsMainThread, |
100 // but it is problematic becase we would need to keep reference to | 64 // but it is problematic because we would need to keep reference to |
101 // Core somewhere, e.g. make the delegate ref-counted. | 65 // Core somewhere, e.g. make the delegate ref-counted. |
102 return base::PlatformThread::CurrentId() == plugin_thread_id_; | 66 return base::PlatformThread::CurrentId() == plugin_thread_id_; |
103 } | 67 } |
104 | 68 |
105 // static | 69 // static |
106 void PluginMessageLoopProxy::TaskSpringboard(void* data) { | 70 void PluginMessageLoopProxy::TaskSpringboard(void* data) { |
107 base::Closure* task = reinterpret_cast<base::Closure*>(data); | 71 base::Closure* task = reinterpret_cast<base::Closure*>(data); |
108 task->Run(); | 72 task->Run(); |
109 delete task; | 73 delete task; |
110 } | 74 } |
111 | 75 |
112 void PluginMessageLoopProxy::RunTaskIf(Task* task) { | |
113 DCHECK(BelongsToCurrentThread()); | |
114 // |delegate_| can be changed only from our thread, so it's safe to | |
115 // access it without acquiring |lock_|. | |
116 if (delegate_) | |
117 task->Run(); | |
118 delete task; | |
119 } | |
120 | |
121 void PluginMessageLoopProxy::RunClosureIf(const base::Closure& task) { | 76 void PluginMessageLoopProxy::RunClosureIf(const base::Closure& task) { |
122 // |delegate_| can be changed only from our thread, so it's safe to | 77 // |delegate_| can be changed only from our thread, so it's safe to |
123 // access it without acquiring |lock_|. | 78 // access it without acquiring |lock_|. |
124 if (delegate_) | 79 if (delegate_) |
125 task.Run(); | 80 task.Run(); |
126 } | 81 } |
127 | 82 |
128 } // namespace remoting | 83 } // namespace remoting |
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