Mercurial > sdl-ios-xcode
view docs/html/sdlmutexp.html @ 3331:d44a0a913aa2
Eric Wing to Sam
Lots of fixes.
Fixed missing power management building.
Added template icons to the project templates.
DocSet stuff
Documentation fixes..
Fixed all the SDLtests. (Lots of tedious work.) It now depends on the static library target for convenience so I am not going to remove it from the SDL xcode project.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 01 Oct 2009 15:30:26 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_mutexP</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_DestroyMutex" HREF="sdldestroymutex.html"><LINK REL="NEXT" TITLE="SDL_mutexV" HREF="sdlmutexv.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="sdldestroymutex.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlmutexv.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLMUTEXP" ></A >SDL_mutexP</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN7872" ></A ><H2 >Name</H2 >SDL_mutexP -- Lock a mutex</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN7875" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN7876" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h" #include "SDL_thread.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >int <B CLASS="FSFUNC" >SDL_mutexP</B ></CODE >(SDL_mutex *mutex);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7882" ></A ><H2 >Description</H2 ><P >Locks the <TT CLASS="PARAMETER" ><I >mutex</I ></TT >, which was previously created with <A HREF="sdlcreatemutex.html" ><TT CLASS="FUNCTION" >SDL_CreateMutex</TT ></A >. If the mutex is already locked then <TT CLASS="FUNCTION" >SDL_mutexP</TT > will not return until it is <A HREF="sdlmutexv.html" >unlocked</A >. Returns <SPAN CLASS="RETURNVALUE" >0</SPAN > on success, or <SPAN CLASS="RETURNVALUE" >-1</SPAN > on an error.</P ><P >SDL also defines a macro <TT CLASS="LITERAL" >#define SDL_LockMutex(m) SDL_mutexP(m)</TT >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7894" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlcreatemutex.html" ><TT CLASS="FUNCTION" >SDL_CreateMutex</TT ></A >, <A HREF="sdlmutexv.html" ><TT CLASS="FUNCTION" >SDL_mutexV</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="sdldestroymutex.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="sdlmutexv.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_DestroyMutex</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_mutexV</TD ></TR ></TABLE ></DIV ></BODY ></HTML >