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SDL_CreateSemaphore(3)			SDL API Reference		   SDL_CreateSemaphore(3)

NAME
       SDL_CreateSemaphore - Creates a new semaphore and assigns an initial value to it.

SYNOPSIS
       #include "SDL.h" #include "SDL_thread.h"

       SDL_sem *SDL_CreateSemaphore(Uint32 initial_value);

DESCRIPTION
       SDL_CreateSemaphore()  creates  a  new  semaphore  and  initializes it with the value ini-
       tial_value. Each locking operation on the  semaphore  by  SDL_SemWait,  SDL_SemTryWait  or
       SDL_SemWaitTimeout  will  atomically  decrement the semaphore value. The locking operation
       will be blocked if the semaphore value is not positive (greater than  zero).  Each  unlock
       operation by SDL_SemPost will atomically increment the semaphore value.

RETURN VALUE
       Returns a pointer to an initialized semaphore or NULL if there was an error.

EXAMPLES
       SDL_sem *my_sem;

       my_sem = SDL_CreateSemaphore(INITIAL_SEM_VALUE);

       if (my_sem == NULL) {
	       return CREATE_SEM_FAILED;
       }

SEE ALSO
       SDL_DestroySemaphore,   SDL_SemWait,   SDL_SemTryWait,	SDL_SemWaitTimeout,  SDL_SemPost,
       SDL_SemValue

SDL				      Tue 11 Sep 2001, 23:00		   SDL_CreateSemaphore(3)
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