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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 | 5 |
6 // Windows Timer Primer | 6 // Windows Timer Primer |
7 // | 7 // |
8 // A good article: http://www.ddj.com/windows/184416651 | 8 // A good article: http://www.ddj.com/windows/184416651 |
9 // A good mozilla bug: http://bugzilla.mozilla.org/show_bug.cgi?id=363258 | 9 // A good mozilla bug: http://bugzilla.mozilla.org/show_bug.cgi?id=363258 |
10 // | 10 // |
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533 // static | 533 // static |
534 TimeTicks TimeTicks::FromQPCValue(LONGLONG qpc_value) { | 534 TimeTicks TimeTicks::FromQPCValue(LONGLONG qpc_value) { |
535 return TimeTicks(GetHighResNowSingleton()->QPCValueToMicroseconds(qpc_value)); | 535 return TimeTicks(GetHighResNowSingleton()->QPCValueToMicroseconds(qpc_value)); |
536 } | 536 } |
537 | 537 |
538 // static | 538 // static |
539 bool TimeTicks::IsHighResClockWorking() { | 539 bool TimeTicks::IsHighResClockWorking() { |
540 return GetHighResNowSingleton()->IsUsingHighResClock(); | 540 return GetHighResNowSingleton()->IsUsingHighResClock(); |
541 } | 541 } |
542 | 542 |
543 TimeTicks TimeTicks::UnprotectedNow() { | |
544 if (now_function == HighResNowWrapper) { | |
545 return Now(); | |
546 } else { | |
547 return TimeTicks() + TimeDelta::FromMilliseconds(timeGetTime()); | |
548 } | |
549 } | |
550 | |
551 // TimeDelta ------------------------------------------------------------------ | 543 // TimeDelta ------------------------------------------------------------------ |
552 | 544 |
553 // static | 545 // static |
554 TimeDelta TimeDelta::FromQPCValue(LONGLONG qpc_value) { | 546 TimeDelta TimeDelta::FromQPCValue(LONGLONG qpc_value) { |
555 return TimeDelta(GetHighResNowSingleton()->QPCValueToMicroseconds(qpc_value)); | 547 return TimeDelta(GetHighResNowSingleton()->QPCValueToMicroseconds(qpc_value)); |
556 } | 548 } |
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