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view docs/man3/SDL_DestroySemaphore.3 @ 787:07760c8854d1
Date: Sat, 24 Jan 2004 14:49:58 +0100
From: Stephane Marchesin
Subject: Re: [SDL] 3DNow! detection on a P4 system
Well... I found another bug : 3dnow was detected on P2/P3 cpus. So I
took one more look at the code and found a mistake in
CPU_getCPUIDFeaturesExt :
The condition for having extended cpuinfo is that when we query extended
cpuinfo we get a result >= 0x80000001. So we must exit if eax < 0x80000001.
The attached patch does that.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 24 Jan 2004 15:55:00 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
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.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