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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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433 virtual double currentTime() { return 0; } | 433 virtual double currentTime() { return 0; } |
434 | 434 |
435 // Monotonically increasing time in seconds from an arbitrary fixed point in
the past. | 435 // Monotonically increasing time in seconds from an arbitrary fixed point in
the past. |
436 // This function is expected to return at least millisecond-precision values
. For this reason, | 436 // This function is expected to return at least millisecond-precision values
. For this reason, |
437 // it is recommended that the fixed point be no further in the past than the
epoch. | 437 // it is recommended that the fixed point be no further in the past than the
epoch. |
438 virtual double monotonicallyIncreasingTime() { return 0; } | 438 virtual double monotonicallyIncreasingTime() { return 0; } |
439 | 439 |
440 // WebKit clients must implement this funcion if they use cryptographic rand
omness. | 440 // WebKit clients must implement this funcion if they use cryptographic rand
omness. |
441 virtual void cryptographicallyRandomValues(unsigned char* buffer, size_t len
gth) = 0; | 441 virtual void cryptographicallyRandomValues(unsigned char* buffer, size_t len
gth) = 0; |
442 | 442 |
443 // Delayed work is driven by a shared timer. | |
444 typedef void (*SharedTimerFunction)(); | |
445 virtual void setSharedTimerFiredFunction(SharedTimerFunction timerFunction)
{ } | |
446 virtual void setSharedTimerFireInterval(double) { } | |
447 virtual void stopSharedTimer() { } | |
448 | |
449 // Returns an interface to the main thread. Can be null if blink was initial
ized on a thread without a message loop. | 443 // Returns an interface to the main thread. Can be null if blink was initial
ized on a thread without a message loop. |
450 BLINK_PLATFORM_EXPORT WebThread* mainThread() const; | 444 BLINK_PLATFORM_EXPORT WebThread* mainThread() const; |
451 | 445 |
452 // Vibration ----------------------------------------------------------- | 446 // Vibration ----------------------------------------------------------- |
453 | 447 |
454 // Starts a vibration for the given duration in milliseconds. If there is cu
rrently an active | 448 // Starts a vibration for the given duration in milliseconds. If there is cu
rrently an active |
455 // vibration it will be cancelled before the new one is started. | 449 // vibration it will be cancelled before the new one is started. |
456 virtual void vibrate(unsigned time) { } | 450 virtual void vibrate(unsigned time) { } |
457 | 451 |
458 // Cancels the current vibration, if there is one. | 452 // Cancels the current vibration, if there is one. |
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698 protected: | 692 protected: |
699 BLINK_PLATFORM_EXPORT Platform(); | 693 BLINK_PLATFORM_EXPORT Platform(); |
700 virtual ~Platform() { } | 694 virtual ~Platform() { } |
701 | 695 |
702 WebThread* m_mainThread; | 696 WebThread* m_mainThread; |
703 }; | 697 }; |
704 | 698 |
705 } // namespace blink | 699 } // namespace blink |
706 | 700 |
707 #endif | 701 #endif |
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