annotate docs/man3/SDL_SemWait.3 @ 1135:cf6133247d34

Mac Classic and CodeWarrior patches. --ryan. From: =?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= <afb@algonet.se> Subject: Re: [SDL] Updated Mac patch Date: Tue, 6 Sep 2005 15:21:27 +0200 To: A list for developers using the SDL library <sdl@libsdl.org> Earlier, I wrote: > Updated the previous Mac patch to disable Carbon by default. > Also "fixed" the SDL.spec again, so that it builds on Darwin. > > http://www.algonet.se/~afb/SDL-1.2.9-mac.patch > Also applied fine to SDL12 CVS, when I tried it. > > Haven't completed any new packaging or projects for Xcode/PB, > but it seems to build and install fine here (in development). Tested the new patch to build with old CodeWarrior and MPW, and it seems it needed some hacks with those old headers... Just in case you want to support the archeological versions - here is a small add-on to the above patch, to fix those... http://www.algonet.se/~afb/SDL-1.2.9-classic.patch I couldn't get the old CW5 projects to build without a few modifications - such as deleting the stray old header in: "CWprojects/Support/Carbon/Include/ConditionalMacros.h" ? But I updated both projects to CW6 too and built for Carbon, and it ran all of the Mac test projects without any problems. The MPW file seems to have compiled, with a small order change. As long as you're still shipping the CWProjects and MPWmake with the download, they should probably be updated/fixed ? (another "solution" would of course be to just delete them) I'll post my new projects along with the new Xcode projects later on, along with XML exports of the various .mcp files. (CW5 builds for Classic / "PPC", and CW6 builds for Carbon) It'll be packaged as a part of the next SpriteWorld X release... http://spriteworldx.sourceforge.net/ [Classic/Carbon/Win/X11] --anders
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 08 Sep 2005 06:34:28 +0000
parents e5bc29de3f0a
children 546f7c1eb755
rev   line source
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1 .TH "SDL_SemWait" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference"
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2 .SH "NAME"
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3 SDL_SemWait\- Lock a semaphore and suspend the thread if the semaphore value is zero\&.
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4 .SH "SYNOPSIS"
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5 .PP
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6 \fB#include "SDL\&.h"
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7 #include "SDL_thread\&.h"
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8 .sp
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9 \fBint \fBSDL_SemWait\fP\fR(\fBSDL_sem *sem\fR);
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10 .SH "DESCRIPTION"
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11 .PP
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12 \fBSDL_SemWait()\fP suspends the calling thread until either the semaphore pointed to by \fBsem\fR has a positive value, the call is interrupted by a signal or error\&. If the call is successful it will atomically decrement the semaphore value\&.
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13 .PP
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14 After \fBSDL_SemWait()\fP is successful, the semaphore can be released and its count atomically incremented by a successful call to \fISDL_SemPost\fR\&.
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15 .SH "RETURN VALUE"
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16 .PP
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17 Returns \fB0\fR if successful or \fB-1\fR if there was an error (leaving the semaphore unchanged)\&.
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18 .SH "EXAMPLES"
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19 .PP
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20 .PP
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21 .nf
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22 \f(CWif (SDL_SemWait(my_sem) == -1) {
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23 return WAIT_FAILED;
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24 }
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25
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26 \&.\&.\&.
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27
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28 SDL_SemPost(my_sem);\fR
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29 .fi
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30 .PP
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31 .SH "SEE ALSO"
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32 .PP
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33 \fI\fBSDL_CreateSemaphore\fP\fR, \fI\fBSDL_DestroySemaphore\fP\fR, \fI\fBSDL_SemTryWait\fP\fR, \fI\fBSDL_SemWaitTimeout\fP\fR, \fI\fBSDL_SemPost\fP\fR, \fI\fBSDL_SemValue\fP\fR
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34 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00