Mercurial > sdl-ios-xcode
view docs/man3/SDL_SemPost.3 @ 901:fd4a6847ddc0
Date: Thu, 24 Jun 2004 15:13:40 +0300 (EEST)
From: Martin_Storsj�
Subject: Small patches for SDL/win32
I've tried playing with running SDL compiled for Windows with Wine (and
WineX) under Linux. It didn't originally work too well, but I somehow
managed to make it work. Most of the fixes was patches to Wine(X), but I
also found something in video/windx5/SDL_dx5video.c which, as far as I can
tell, actually is a bug in SDL. The result from the COM method Release,
which returns the new reference count, is compared to DD_OK. Because
QueryInterface is called immediately before, the reference count shouldn't
be DD_OK (== 0).
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 25 Jun 2004 05:24:50 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
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.TH "SDL_SemPost" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" .SH "NAME" SDL_SemPost\- Unlock a semaphore\&. .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" #include "SDL_thread\&.h" .sp \fBint \fBSDL_SemPost\fP\fR(\fBSDL_sem *sem\fR); .SH "DESCRIPTION" .PP \fBSDL_SemPost\fP unlocks the semaphore pointed to by \fBsem\fR and atomically increments the semaphores value\&. Threads that were blocking on the semaphore may be scheduled after this call succeeds\&. .PP \fBSDL_SemPost\fP should be called after a semaphore is locked by a successful call to \fISDL_SemWait\fR, \fISDL_SemTryWait\fR or \fISDL_SemWaitTimeout\fR\&. .SH "RETURN VALUE" .PP Returns \fB0\fR if successful or \fB-1\fR if there was an error (leaving the semaphore unchanged)\&. .SH "EXAMPLES" .PP .PP .nf \f(CWSDL_SemPost(my_sem);\fR .fi .PP .SH "SEE ALSO" .PP \fI\fBSDL_CreateSemaphore\fP\fR, \fI\fBSDL_DestroySemaphore\fP\fR, \fI\fBSDL_SemWait\fP\fR, \fI\fBSDL_SemTryWait\fP\fR, \fI\fBSDL_SemWaitTimeout\fP\fR, \fI\fBSDL_SemValue\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00