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4 commits

Author SHA1 Message Date
Gunnar Beutner
a44ddc4793 LibPthread: Don't hold sem->mtx after sem_wait()/sem_trywait() 
Semaphores with values greater than one didn't work because whoever
called sem_wait() first held the semaphore's mutex until a matching
sem_post() call.

Other callers then wouldn't be able to acquire the semaphore even
if the semaphore's value was still greater than zero at that point.
 2021-04-15 09:31:49 +02:00
Gunnar Beutner
32794e00a1 LibPthread: Improve error handling for the semaphore functions 
This patch makes sure we're propagating errors to the caller.
 2021-04-15 09:31:49 +02:00
Gunnar Beutner
98403eccb0 LibPthread: Ensure we're not overflowing the semaphore's value 2021-04-15 09:31:49 +02:00
Gunnar Beutner
ea6d0aa1d4 LibPthread: Implement semaphore functions 2021-04-14 13:13:06 +02:00
Renamed from Userland/Libraries/LibC/semaphore.cpp (Browse further)