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Kernel: Clean up sys$futex and add support for cross-process futexes

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This commit is contained in:
Idan Horowitz 2022-07-14 01:25:35 +03:00 • committed by Andreas Kling
parent 55c7496200
commit 9db10887a1
9 changed files with 164 additions and 70 deletions
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4
Userland/Libraries/LibC/pthread_once.cpp
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@ -46,7 +46,7 @@ int pthread_once(pthread_once_t* self, void (*callback)(void))
// anyone.
break;
case State::PERFORMING_WITH_WAITERS:
futex_wake(self, INT_MAX);
futex_wake(self, INT_MAX, false);
break;
}
@ -76,7 +76,7 @@ int pthread_once(pthread_once_t* self, void (*callback)(void))
[[fallthrough]];
case State::PERFORMING_WITH_WAITERS:
// Let's wait for it.
futex_wait(self, state2, nullptr, 0);
futex_wait(self, state2, nullptr, 0, false);
// We have been woken up, but that might have been due to a signal
// or something, so we have to reevaluate. We need acquire ordering
// here for the same reason as above. Hopefully we'll just see