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GNU/Linux |
CentOS 5.3 |
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SDL_SemPost(3) |
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SDL_SemPost− Unlock a semaphore.
#include "SDL.h" #include "SDL_thread.h"
int SDL_SemPost(SDL_sem *sem);
SDL_SemPost unlocks the semaphore pointed to by sem and atomically increments the semaphores value. Threads that were blocking on the semaphore may be scheduled after this call succeeds.
SDL_SemPost should be called after a semaphore is locked by a successful call to SDL_SemWait, SDL_SemTryWait or SDL_SemWaitTimeout.
Returns 0 if successful or -1 if there was an error (leaving the semaphore unchanged).
SDL_SemPost(my_sem);
SDL_CreateSemaphore, SDL_DestroySemaphore, SDL_SemWait, SDL_SemTryWait, SDL_SemWaitTimeout, SDL_SemValue
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SDL_SemPost(3) | |