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annotate docs/man3/SDL_CreateSemaphore.3 @ 1429:aff0170f9f1b
Date: Sat, 25 Feb 2006 14:26:19 +0100 (CET)
From: "Torsten Giebl"
Subject: [SDL] testpalette.diff
To get rid of Mousecursor Fullscreen problems on Mac OSX.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 25 Feb 2006 15:01:44 +0000 |
parents | e5bc29de3f0a |
children | 546f7c1eb755 |
rev | line source |
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181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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1 .TH "SDL_CreateSemaphore" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" |
0 | 2 .SH "NAME" |
3 SDL_CreateSemaphore\- Creates a new semaphore and assigns an initial value to it\&. | |
4 .SH "SYNOPSIS" | |
5 .PP | |
6 \fB#include "SDL\&.h" | |
7 #include "SDL_thread\&.h" | |
8 .sp | |
9 \fBSDL_sem *\fBSDL_CreateSemaphore\fP\fR(\fBUint32 initial_value\fR); | |
10 .SH "DESCRIPTION" | |
11 .PP | |
12 \fBSDL_CreateSemaphore()\fP creates a new semaphore and initializes it with the value \fBinitial_value\fR\&. Each locking operation on the semaphore by \fISDL_SemWait\fR, \fISDL_SemTryWait\fR or \fISDL_SemWaitTimeout\fR 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 \fISDL_SemPost\fR will atomically increment the semaphore value\&. | |
13 .SH "RETURN VALUE" | |
14 .PP | |
15 Returns a pointer to an initialized semaphore or \fBNULL\fR if there was an error\&. | |
16 .SH "EXAMPLES" | |
17 .PP | |
18 .PP | |
19 .nf | |
20 \f(CWSDL_sem *my_sem; | |
21 | |
22 my_sem = SDL_CreateSemaphore(INITIAL_SEM_VALUE); | |
23 | |
24 if (my_sem == NULL) { | |
25 return CREATE_SEM_FAILED; | |
26 }\fR | |
27 .fi | |
28 .PP | |
29 .SH "SEE ALSO" | |
30 .PP | |
31 \fI\fBSDL_DestroySemaphore\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 | |
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
32 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00 |