This is new wiki software and old wiki content. It's a work in progress!
Here's the explanation.
Be gentle, report bugs, leave feedback on pages, or just edit them yourself! Thanks!

SDL Wiki

SDL_SemWait

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

Syntax

int SDL_SemWait(SDL_sem * sem);

Function Parameters

sem

the semaphore wait on

Return Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

Remarks

This function suspends the calling thread until either the semaphore pointed to by sem has a positive value or the call is interrupted by a signal or error. If the call is successful it will atomically decrement the semaphore value.

This function is the equivalent of calling SDL_SemWaitTimeout() with a time length of SDL_MUTEX_MAXWAIT.

Code Examples

<<Include(SDL_CreateSemaphore, , , from="## Begin Semaphore Example", to="## End Semaphore Example")>>

SDL_CreateSemaphore
SDL_DestroySemaphore
SDL_SemPost
SDL_SemTryWait
SDL_SemValue
SDL_SemWait
SDL_SemWaitTimeout

CategoryAPI, CategoryMutex


[ edit | delete | history | feedback | raw ]

[ front page | index | search | recent changes | git repo | offline html ]

All wiki content is licensed under Creative Commons Attribution 4.0 International (CC BY 4.0).
Wiki powered by ghwikipp.