Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

CentOS 7.0 - man page for sdl_createsemaphore (centos section 3)

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 initial_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)
All times are GMT -4. The time now is 05:19 AM.

Unix & Linux Forums Content Copyright 1993-2018. All Rights Reserved.
UNIX.COM Login
Username:
Password:  
Show Password





Not a Forum Member?
Forgot Password?