NAME¶

SDL_WaitConditionTimeout - Wait until a condition variable is signaled or a certain time has passed.

SYNOPSIS¶

#include "SDL3/SDL.h"

int SDL_WaitConditionTimeout(SDL_Condition *cond,
                        SDL_Mutex *mutex, Sint32 timeoutMS);

DESCRIPTION¶

This function unlocks the specified mutex and waits for another thread to call SDL_SignalCondition () or

SDL_BroadcastCondition () on the condition variable cond , or for the specified time to elapse. Once the condition variable is signaled or the time elapsed, the mutex is re-locked and the function returns.

The mutex must be locked before calling this function. Locking the mutex recursively (more than once) is not supported and leads to undefined behavior.

FUNCTION PARAMETERS¶

cond

the condition variable to wait on

mutex

the mutex used to coordinate thread access

timeoutMS

the maximum time to wait, in milliseconds, or -1 to wait indefinitely

RETURN VALUE¶

Returns 0 if the condition variable is signaled,

SDL_MUTEX_TIMEDOUT if the condition is not signaled in the allotted time, or a negative error code on failure; call

SDL_GetError () for more information.

AVAILABILITY¶

This function is available since SDL 3.0.0.

SEE ALSO¶

SDL_BroadcastCondition(3), SDL_SignalCondition(3), SDL_WaitCondition(3)