NAME¶

SDL_WaitSemaphore - Wait until a semaphore has a positive value and then decrements it.

HEADER FILE¶

Defined in SDL3/SDL_mutex.h

SYNOPSIS¶

#include "SDL3/SDL.h"

void SDL_WaitSemaphore(SDL_Semaphore *sem);

DESCRIPTION¶

This function suspends the calling thread until the semaphore pointed to by sem has a positive value, and then atomically decrement the semaphore value.

This function is the equivalent of calling

SDL_WaitSemaphoreTimeout () with a time length of -1.

FUNCTION PARAMETERS¶

sem

the semaphore wait on.

AVAILABILITY¶

This function is available since SDL 3.2.0.

SEE ALSO¶

•(3), SDL_SignalSemaphore(3), •(3), SDL_TryWaitSemaphore(3), •(3), SDL_WaitSemaphoreTimeout(3)