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1 /* | 1 /* |
2 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. |
3 * Copyright (C) 2009 Google Inc. All rights reserved. | 3 * Copyright (C) 2009 Google Inc. All rights reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 */ | 25 */ |
26 | 26 |
27 #include "config.h" | 27 #include "config.h" |
28 #include "platform/ThreadTimers.h" | 28 #include "platform/ThreadTimers.h" |
29 | 29 |
30 #include "platform/PlatformThreadData.h" | 30 #include "platform/PlatformThreadData.h" |
31 #include "platform/SharedTimer.h" | 31 #include "platform/SharedTimer.h" |
32 #include "platform/Timer.h" | 32 #include "platform/Timer.h" |
33 #include "platform/TraceEvent.h" | 33 #include "platform/TraceEvent.h" |
34 #include "platform/heap/AddressSanitizer.h" | |
35 #include "public/platform/Platform.h" | 34 #include "public/platform/Platform.h" |
36 #include "public/platform/WebScheduler.h" | 35 #include "public/platform/WebScheduler.h" |
37 #include "wtf/CurrentTime.h" | 36 #include "wtf/CurrentTime.h" |
38 #include "wtf/MainThread.h" | 37 #include "wtf/MainThread.h" |
39 | 38 |
40 namespace blink { | 39 namespace blink { |
41 | 40 |
42 // Fire timers for this length of time, and then quit to let the run loop proces
s user input events. | 41 // Fire timers for this length of time, and then quit to let the run loop proces
s user input events. |
43 // 100ms is about a perceptable delay in UI, so use a half of that as a threshol
d. | 42 // 100ms is about a perceptable delay in UI, so use a half of that as a threshol
d. |
44 // This is to prevent UI freeze when there are too many timers or machine perfor
mance is low. | 43 // This is to prevent UI freeze when there are too many timers or machine perfor
mance is low. |
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72 } | 71 } |
73 | 72 |
74 m_sharedTimer = sharedTimer; | 73 m_sharedTimer = sharedTimer; |
75 | 74 |
76 if (m_sharedTimer) { | 75 if (m_sharedTimer) { |
77 m_sharedTimer->setFiredFunction(ThreadTimers::sharedTimerFired); | 76 m_sharedTimer->setFiredFunction(ThreadTimers::sharedTimerFired); |
78 updateSharedTimer(); | 77 updateSharedTimer(); |
79 } | 78 } |
80 } | 79 } |
81 | 80 |
82 NO_LAZY_SWEEP_SANITIZE_ADDRESS | |
83 void ThreadTimers::updateSharedTimer() | 81 void ThreadTimers::updateSharedTimer() |
84 { | 82 { |
85 if (!m_sharedTimer) | 83 if (!m_sharedTimer) |
86 return; | 84 return; |
87 | 85 |
88 if (m_firingTimers || m_timerHeap.isEmpty()) { | 86 if (m_firingTimers || m_timerHeap.isEmpty()) { |
89 m_pendingSharedTimerFireTime = 0; | 87 m_pendingSharedTimerFireTime = 0; |
90 m_sharedTimer->stop(); | 88 m_sharedTimer->stop(); |
91 } else { | 89 } else { |
92 double nextFireTime = m_timerHeap.first()->m_nextFireTime; | 90 double nextFireTime = m_timerHeap.first()->m_nextFireTime; |
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143 || (isMainThread() && Platform::current()->currentThread()->schedule
r()->shouldYieldForHighPriorityWork())) | 141 || (isMainThread() && Platform::current()->currentThread()->schedule
r()->shouldYieldForHighPriorityWork())) |
144 break; | 142 break; |
145 } | 143 } |
146 | 144 |
147 m_firingTimers = false; | 145 m_firingTimers = false; |
148 | 146 |
149 updateSharedTimer(); | 147 updateSharedTimer(); |
150 } | 148 } |
151 | 149 |
152 } // namespace blink | 150 } // namespace blink |
| 151 |
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