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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 part of dart.io; | 5 part of dart.io; |
6 | 6 |
7 class _Timer implements Timer { | 7 class _Timer implements Timer { |
8 // Set jitter to wake up timer events that would happen in _TIMER_JITTER ms. | 8 // Set jitter to wake up timer events that would happen in _TIMER_JITTER ms. |
9 static const int _TIMER_JITTER = 0; | 9 static const int _TIMER_JITTER = 0; |
10 | 10 |
11 // Disables the timer. | 11 // Disables the timer. |
12 static const int _NO_TIMER = -1; | 12 static const int _NO_TIMER = -1; |
13 | 13 |
14 static Timer _createTimer(void callback(Timer timer), | 14 static Timer _createTimer(void callback(Timer timer), |
15 int milliSeconds, | 15 int milliSeconds, |
16 bool repeating) { | 16 bool repeating) { |
17 _EventHandler._start(); | 17 _EventHandler._start(); |
18 if (_timers == null) { | 18 if (_timers == null) { |
19 _timers = new DoubleLinkedQueue<_Timer>(); | 19 _timers = new DoubleLinkedQueue<_Timer>(); |
20 } | 20 } |
21 Timer timer = new _Timer._internal(); | 21 Timer timer = new _Timer._internal(); |
22 timer._callback = callback; | 22 timer._callback = callback; |
23 timer._milliSeconds = milliSeconds; | 23 timer._milliSeconds = milliSeconds; |
24 timer._wakeupTime = (new Date.now()).millisecondsSinceEpoch + milliSeconds; | 24 timer._wakeupTime = (new DateTime.now()).millisecondsSinceEpoch + milliSecon
ds; |
25 timer._repeating = repeating; | 25 timer._repeating = repeating; |
26 timer._addTimerToList(); | 26 timer._addTimerToList(); |
27 timer._notifyEventHandler(); | 27 timer._notifyEventHandler(); |
28 return timer; | 28 return timer; |
29 } | 29 } |
30 | 30 |
31 factory _Timer(int milliSeconds, void callback(Timer timer)) { | 31 factory _Timer(int milliSeconds, void callback(Timer timer)) { |
32 return _createTimer(callback, milliSeconds, false); | 32 return _createTimer(callback, milliSeconds, false); |
33 } | 33 } |
34 | 34 |
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116 } | 116 } |
117 } | 117 } |
118 | 118 |
119 | 119 |
120 // Creates a receive port and registers the timer handler on that | 120 // Creates a receive port and registers the timer handler on that |
121 // receive port. | 121 // receive port. |
122 void _createTimerHandler() { | 122 void _createTimerHandler() { |
123 | 123 |
124 void _handleTimeout() { | 124 void _handleTimeout() { |
125 int currentTime = | 125 int currentTime = |
126 (new Date.now()).millisecondsSinceEpoch + _TIMER_JITTER; | 126 (new DateTime.now()).millisecondsSinceEpoch + _TIMER_JITTER; |
127 | 127 |
128 // Collect all pending timers. | 128 // Collect all pending timers. |
129 DoubleLinkedQueueEntry<_Timer> entry = _timers.firstEntry(); | 129 DoubleLinkedQueueEntry<_Timer> entry = _timers.firstEntry(); |
130 var pending_timers = new List(); | 130 var pending_timers = new List(); |
131 while (entry != null) { | 131 while (entry != null) { |
132 _Timer timer = entry.element; | 132 _Timer timer = entry.element; |
133 if (timer._wakeupTime <= currentTime) { | 133 if (timer._wakeupTime <= currentTime) { |
134 entry.remove(); | 134 entry.remove(); |
135 pending_timers.addLast(timer); | 135 pending_timers.addLast(timer); |
136 entry = _timers.firstEntry(); | 136 entry = _timers.firstEntry(); |
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193 _getTimerFactoryClosure() { | 193 _getTimerFactoryClosure() { |
194 return (int milliSeconds, void callback(Timer timer), bool repeating) { | 194 return (int milliSeconds, void callback(Timer timer), bool repeating) { |
195 if (repeating) { | 195 if (repeating) { |
196 return new _Timer.repeating(milliSeconds, callback); | 196 return new _Timer.repeating(milliSeconds, callback); |
197 } | 197 } |
198 return new _Timer(milliSeconds, callback); | 198 return new _Timer(milliSeconds, callback); |
199 }; | 199 }; |
200 } | 200 } |
201 | 201 |
202 | 202 |
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