| 749 |
|
/** |
| 750 |
|
* Delays, via Thread.sleep, for the given millisecond delay, but |
| 751 |
|
* if the sleep is shorter than specified, may re-sleep or yield |
| 752 |
< |
* until time elapses. |
| 752 |
> |
* until time elapses. Ensures that the given time, as measured |
| 753 |
> |
* by System.nanoTime(), has elapsed. |
| 754 |
|
*/ |
| 755 |
|
static void delay(long millis) throws InterruptedException { |
| 756 |
< |
long startTime = System.nanoTime(); |
| 757 |
< |
long ns = millis * 1000 * 1000; |
| 758 |
< |
for (;;) { |
| 756 |
> |
long nanos = millis * (1000 * 1000); |
| 757 |
> |
final long wakeupTime = System.nanoTime() + nanos; |
| 758 |
> |
do { |
| 759 |
|
if (millis > 0L) |
| 760 |
|
Thread.sleep(millis); |
| 761 |
|
else // too short to sleep |
| 762 |
|
Thread.yield(); |
| 763 |
< |
long d = ns - (System.nanoTime() - startTime); |
| 764 |
< |
if (d > 0L) |
| 765 |
< |
millis = d / (1000 * 1000); |
| 765 |
< |
else |
| 766 |
< |
break; |
| 767 |
< |
} |
| 763 |
> |
nanos = wakeupTime - System.nanoTime(); |
| 764 |
> |
millis = nanos / (1000 * 1000); |
| 765 |
> |
} while (nanos >= 0L); |
| 766 |
|
} |
| 767 |
|
|
| 768 |
|
/** |
