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interpret time of zero as infinity when isAbsolute is false in Unsafe.park

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This behavior is not covered in the documentation, but
LockSupport.park clearly relies on it.
This commit is contained in:
Joel Dice 2012-04-25 17:47:07 -06:00
parent 01aa1e2bfd
commit deeb3c694c
1 changed files with 10 additions and 3 deletions
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13
src/classpath-openjdk.cpp
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@ -2739,12 +2739,15 @@ Avian_sun_misc_Unsafe_park
if (time <= 0) {
return;
}
} else {
time /= 1000 * 1000;
} else if (time) {
// if not absolute, interpret time as nanoseconds, but make sure
// it doesn't become zero when we convert to milliseconds, since
// zero is interpreted as infinity below
time = (time / (1000 * 1000)) + 1;
}
monitorAcquire(t, local::interruptLock(t, t->javaThread));
while (time > 0
while (time >= 0
and (not (threadUnparked(t, t->javaThread)
or monitorWait
(t, local::interruptLock(t, t->javaThread), time))))
@ -2752,6 +2755,10 @@ Avian_sun_misc_Unsafe_park
int64_t now = t->m->system->now();
time -= now - then;
then = now;
if (time == 0) {
break;
}
}
threadUnparked(t, t->javaThread) = false;
monitorRelease(t, local::interruptLock(t, t->javaThread));