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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 "chrome_frame/task_marshaller.h" | 5 #include "chrome_frame/task_marshaller.h" |
6 #include "base/task.h" | 6 #include "base/task.h" |
7 | 7 |
8 TaskMarshallerThroughMessageQueue::TaskMarshallerThroughMessageQueue() { | 8 TaskMarshallerThroughMessageQueue::TaskMarshallerThroughMessageQueue() { |
9 wnd_ = NULL; | 9 wnd_ = NULL; |
10 msg_ = 0xFFFF; | 10 msg_ = 0xFFFF; |
11 } | 11 } |
12 | 12 |
13 TaskMarshallerThroughMessageQueue::~TaskMarshallerThroughMessageQueue() { | 13 TaskMarshallerThroughMessageQueue::~TaskMarshallerThroughMessageQueue() { |
14 DeleteAll(); | 14 DeleteAll(); |
15 } | 15 } |
16 | 16 |
17 void TaskMarshallerThroughMessageQueue::PostTask( | 17 void TaskMarshallerThroughMessageQueue::PostTask( |
18 const tracked_objects::Location& from_here, Task* task) { | 18 const tracked_objects::Location& from_here, Task* task) { |
19 DCHECK(wnd_ != NULL); | 19 DCHECK(wnd_ != NULL); |
20 task->SetBirthPlace(from_here); | |
21 lock_.Acquire(); | 20 lock_.Acquire(); |
22 bool has_work = !pending_tasks_.empty(); | 21 bool has_work = !pending_tasks_.empty(); |
23 pending_tasks_.push(task); | 22 pending_tasks_.push(task); |
24 lock_.Release(); | 23 lock_.Release(); |
25 | 24 |
26 // Don't post message if there is already one. | 25 // Don't post message if there is already one. |
27 if (has_work) | 26 if (has_work) |
28 return; | 27 return; |
29 | 28 |
30 if (!::PostMessage(wnd_, msg_, 0, 0)) { | 29 if (!::PostMessage(wnd_, msg_, 0, 0)) { |
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149 if (run_at < other.run_at) | 148 if (run_at < other.run_at) |
150 return false; | 149 return false; |
151 | 150 |
152 if (run_at > other.run_at) | 151 if (run_at > other.run_at) |
153 return true; | 152 return true; |
154 | 153 |
155 // If the times happen to match, then we use the sequence number to decide. | 154 // If the times happen to match, then we use the sequence number to decide. |
156 // Compare the difference to support integer roll-over. | 155 // Compare the difference to support integer roll-over. |
157 return (seq - other.seq) > 0; | 156 return (seq - other.seq) > 0; |
158 } | 157 } |
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