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1 /* | 1 /* |
2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * 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 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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421 // it is recommended that the fixed point be no further in the past than the
epoch. | 421 // it is recommended that the fixed point be no further in the past than the
epoch. |
422 virtual double monotonicallyIncreasingTime() { return 0; } | 422 virtual double monotonicallyIncreasingTime() { return 0; } |
423 | 423 |
424 // System trace time in seconds. For example, on Chrome OS, this timestamp s
hould be | 424 // System trace time in seconds. For example, on Chrome OS, this timestamp s
hould be |
425 // synchronized with ftrace timestamps. | 425 // synchronized with ftrace timestamps. |
426 virtual double systemTraceTime() { return 0; } | 426 virtual double systemTraceTime() { return 0; } |
427 | 427 |
428 // WebKit clients must implement this funcion if they use cryptographic rand
omness. | 428 // WebKit clients must implement this funcion if they use cryptographic rand
omness. |
429 virtual void cryptographicallyRandomValues(unsigned char* buffer, size_t len
gth) = 0; | 429 virtual void cryptographicallyRandomValues(unsigned char* buffer, size_t len
gth) = 0; |
430 | 430 |
| 431 // Delayed work is driven by a shared timer. |
| 432 typedef void (*SharedTimerFunction)(); |
| 433 virtual void setSharedTimerFiredFunction(SharedTimerFunction timerFunction)
{ } |
| 434 virtual void setSharedTimerFireInterval(double) { } |
| 435 virtual void stopSharedTimer() { } |
| 436 |
431 // Returns an interface to the main thread. Can be null if blink was initial
ized on a thread without a message loop. | 437 // Returns an interface to the main thread. Can be null if blink was initial
ized on a thread without a message loop. |
432 BLINK_PLATFORM_EXPORT WebThread* mainThread() const; | 438 BLINK_PLATFORM_EXPORT WebThread* mainThread() const; |
433 | 439 |
434 // Vibration ----------------------------------------------------------- | 440 // Vibration ----------------------------------------------------------- |
435 | 441 |
436 // Starts a vibration for the given duration in milliseconds. If there is cu
rrently an active | 442 // Starts a vibration for the given duration in milliseconds. If there is cu
rrently an active |
437 // vibration it will be cancelled before the new one is started. | 443 // vibration it will be cancelled before the new one is started. |
438 virtual void vibrate(unsigned time) { } | 444 virtual void vibrate(unsigned time) { } |
439 | 445 |
440 // Cancels the current vibration, if there is one. | 446 // Cancels the current vibration, if there is one. |
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708 protected: | 714 protected: |
709 BLINK_PLATFORM_EXPORT Platform(); | 715 BLINK_PLATFORM_EXPORT Platform(); |
710 virtual ~Platform() { } | 716 virtual ~Platform() { } |
711 | 717 |
712 WebThread* m_mainThread; | 718 WebThread* m_mainThread; |
713 }; | 719 }; |
714 | 720 |
715 } // namespace blink | 721 } // namespace blink |
716 | 722 |
717 #endif | 723 #endif |
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