Mercurial > sdl-ios-xcode
view docs/html/sdlcreatemutex.html @ 4222:6823a52d06fa SDL-1.2
Fixed bug #714
fuzzyTew@gmail.com 2009-03-14 15:18:45 PDT
Created an attachment (id=305) [details]
patch to change HAVE_ICONV to HAVE_ICONV_H
There are two separate iconv checks in configure -- one for the header file and
one for the library. include/SDL_stdinc.h uses the library define to see
whether or not it should reference the types defined in the header, which
naturally breaks if the library exists and the header does not.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 21 Sep 2009 11:04:32 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_CreateMutex</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="Multi-threaded Programming" HREF="thread.html"><LINK REL="PREVIOUS" TITLE="SDL_KillThread" HREF="sdlkillthread.html"><LINK REL="NEXT" TITLE="SDL_DestroyMutex" HREF="sdldestroymutex.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlkillthread.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdldestroymutex.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLCREATEMUTEX" ></A >SDL_CreateMutex</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN7820" ></A ><H2 >Name</H2 >SDL_CreateMutex -- Create a mutex</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN7823" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN7824" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h" #include "SDL_thread.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >SDL_mutex *<B CLASS="FSFUNC" >SDL_CreateMutex</B ></CODE >(void);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7830" ></A ><H2 >Description</H2 ><P >Create a new, unlocked mutex.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7833" ></A ><H2 >Examples</H2 ><PRE CLASS="PROGRAMLISTING" >SDL_mutex *mut; mut=SDL_CreateMutex(); . . if(SDL_mutexP(mut)==-1){ fprintf(stderr, "Couldn't lock mutex\n"); exit(-1); } . /* Do stuff while mutex is locked */ . . if(SDL_mutexV(mut)==-1){ fprintf(stderr, "Couldn't unlock mutex\n"); exit(-1); } SDL_DestroyMutex(mut); </PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7836" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlmutexp.html" ><TT CLASS="FUNCTION" >SDL_mutexP</TT ></A >, <A HREF="sdlmutexv.html" ><TT CLASS="FUNCTION" >SDL_mutexV</TT ></A >, <A HREF="sdldestroymutex.html" ><TT CLASS="FUNCTION" >SDL_DestroyMutex</TT ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlkillthread.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdldestroymutex.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_KillThread</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="thread.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_DestroyMutex</TD ></TR ></TABLE ></DIV ></BODY ></HTML >