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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 // Time represents an absolute point in coordinated universal time (UTC), | 5 // Time represents an absolute point in coordinated universal time (UTC), |
6 // internally represented as microseconds (s/1,000,000) since the Windows epoch | 6 // internally represented as microseconds (s/1,000,000) since the Windows epoch |
7 // (1601-01-01 00:00:00 UTC). System-dependent clock interface routines are | 7 // (1601-01-01 00:00:00 UTC). System-dependent clock interface routines are |
8 // defined in time_PLATFORM.cc. Note that values for Time may skew and jump | 8 // defined in time_PLATFORM.cc. Note that values for Time may skew and jump |
9 // around as the operating system makes adjustments to synchronize (e.g., with | 9 // around as the operating system makes adjustments to synchronize (e.g., with |
10 // NTP servers). Thus, client code that uses the Time class must account for | 10 // NTP servers). Thus, client code that uses the Time class must account for |
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538 return time; | 538 return time; |
539 } | 539 } |
540 static Time FromLocalExploded(const Exploded& exploded) { | 540 static Time FromLocalExploded(const Exploded& exploded) { |
541 base::Time time; | 541 base::Time time; |
542 ignore_result(FromLocalExploded(exploded, &time)); | 542 ignore_result(FromLocalExploded(exploded, &time)); |
543 return time; | 543 return time; |
544 } | 544 } |
545 | 545 |
546 // Converts an exploded structure representing either the local time or UTC | 546 // Converts an exploded structure representing either the local time or UTC |
547 // into a Time class. Returns false on a failure when, for example, a day of | 547 // into a Time class. Returns false on a failure when, for example, a day of |
548 // month is set to 31 on a 28-30 day month. | 548 // month is set to 31 on a 28-30 day month. Returns Time(0) on overflow. |
549 static bool FromUTCExploded(const Exploded& exploded, | 549 static bool FromUTCExploded(const Exploded& exploded, |
550 Time* time) WARN_UNUSED_RESULT { | 550 Time* time) WARN_UNUSED_RESULT { |
551 return FromExploded(false, exploded, time); | 551 return FromExploded(false, exploded, time); |
552 } | 552 } |
553 static bool FromLocalExploded(const Exploded& exploded, | 553 static bool FromLocalExploded(const Exploded& exploded, |
554 Time* time) WARN_UNUSED_RESULT { | 554 Time* time) WARN_UNUSED_RESULT { |
555 return FromExploded(true, exploded, time); | 555 return FromExploded(true, exploded, time); |
556 } | 556 } |
557 | 557 |
558 // Converts a string representation of time to a Time object. | 558 // Converts a string representation of time to a Time object. |
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842 static void WaitUntilInitializedWin(); | 842 static void WaitUntilInitializedWin(); |
843 #endif | 843 #endif |
844 }; | 844 }; |
845 | 845 |
846 // For logging use only. | 846 // For logging use only. |
847 BASE_EXPORT std::ostream& operator<<(std::ostream& os, ThreadTicks time_ticks); | 847 BASE_EXPORT std::ostream& operator<<(std::ostream& os, ThreadTicks time_ticks); |
848 | 848 |
849 } // namespace base | 849 } // namespace base |
850 | 850 |
851 #endif // BASE_TIME_TIME_H_ | 851 #endif // BASE_TIME_TIME_H_ |
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