sdl_destroysemaphore.3

JPEG-MPEG編解碼技術書集的代碼

.TH "SDL_DestroySemaphore" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_DestroySemaphore\- Destroys a semaphore that was created by \fISDL_CreateSemaphore\fR\&.
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
#include "SDL_thread\&.h"
.sp
\fBvoid \fBSDL_DestroySemaphore\fP\fR(\fBSDL_sem *sem\fR);
.SH "DESCRIPTION"
.PP
\fBSDL_DestroySemaphore\fP destroys the semaphore pointed to by \fBsem\fR that was created by \fI\fBSDL_CreateSemaphore\fP\fR\&. It is not safe to destroy a semaphore if there are threads currently blocked waiting on it\&.
.SH "EXAMPLES"
.PP
.PP
.nf
\f(CWif (my_sem != NULL) {
        SDL_DestroySemaphore(my_sem);
        my_sem = NULL;
}\fR
.fi
.PP
.SH "SEE ALSO"
.PP
\fI\fBSDL_CreateSemaphore\fP\fR, \fI\fBSDL_SemWait\fP\fR, \fI\fBSDL_SemTryWait\fP\fR, \fI\fBSDL_SemWaitTimeout\fP\fR, \fI\fBSDL_SemPost\fP\fR, \fI\fBSDL_SemValue\fP\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00