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1 // Copyright 2011 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 "config.h" | |
6 | |
7 #include "CCTimer.h" | |
8 | |
9 #include "base/compiler_specific.h" | |
10 #include "CCThread.h" | |
11 | |
12 namespace cc { | |
13 | |
14 class CCTimerTask : public CCThread::Task { | |
15 public: | |
16 explicit CCTimerTask(CCTimer* timer) | |
17 : CCThread::Task(0) | |
18 , m_timer(timer) | |
19 { | |
20 } | |
21 | |
22 virtual ~CCTimerTask() | |
23 { | |
24 if (!m_timer) | |
25 return; | |
26 | |
27 ASSERT(m_timer->m_task == this); | |
28 m_timer->stop(); | |
29 } | |
30 | |
31 virtual void performTask() OVERRIDE | |
32 { | |
33 if (!m_timer) | |
34 return; | |
35 | |
36 CCTimerClient* client = m_timer->m_client; | |
37 | |
38 m_timer->stop(); | |
39 if (client) | |
40 client->onTimerFired(); | |
41 } | |
42 | |
43 private: | |
44 friend class CCTimer; | |
45 | |
46 CCTimer* m_timer; // null if cancelled | |
47 }; | |
48 | |
49 CCTimer::CCTimer(CCThread* thread, CCTimerClient* client) | |
50 : m_client(client) | |
51 , m_thread(thread) | |
52 , m_task(0) | |
53 { | |
54 } | |
55 | |
56 CCTimer::~CCTimer() | |
57 { | |
58 stop(); | |
59 } | |
60 | |
61 void CCTimer::startOneShot(double intervalSeconds) | |
62 { | |
63 stop(); | |
64 | |
65 m_task = new CCTimerTask(this); | |
66 | |
67 // The thread expects delays in milliseconds. | |
68 m_thread->postDelayedTask(adoptPtr(m_task), intervalSeconds * 1000.0); | |
69 } | |
70 | |
71 void CCTimer::stop() | |
72 { | |
73 if (!m_task) | |
74 return; | |
75 | |
76 m_task->m_timer = 0; | |
77 m_task = 0; | |
78 } | |
79 | |
80 } // namespace cc | |
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