Mercurial > sdl-ios-xcode
view docs/html/sdlmutexv.html @ 610:95433459fbd2
Date: Mon, 14 Apr 2003 22:08:27 +0100
From: Patrice Mandin
Subject: [SDL][PATCH] 2 patches for sdl
Here are 2 patches for SDL:
- One is to put the dummy video drivers at the end of the
video drivers list. It gave me problems, when
SDL_VIDEODRIVER is not set, and the dummy driver is used
instead of the platform's driver, just because it is
always available. So the dummy driver must always be at
the end of the list. I suppose picogui and dc video
drivers also don't work.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 15 Apr 2003 15:46:56 +0000 |
parents | e5bc29de3f0a |
children | 355632dca928 |
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<HTML ><HEAD ><TITLE >SDL_mutexV</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.64 "><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_mutexP" HREF="sdlmutexp.html"><LINK REL="NEXT" TITLE="SDL_CreateSemaphore" HREF="sdlcreatesemaphore.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><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="sdlmutexp.html" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlcreatesemaphore.html" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLMUTEXV" >SDL_mutexV</A ></H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN7517" ></A ><H2 >Name</H2 >SDL_mutexV -- Unlock a mutex</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN7520" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN7521" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h" #include "SDL_thread.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >int <B CLASS="FSFUNC" >SDL_mutexV</B ></CODE >(SDL_mutex *mutex);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7527" ></A ><H2 >Description</H2 ><P >Unlocks the <TT CLASS="PARAMETER" ><I >mutex</I ></TT >, which was previously created with <A HREF="sdlcreatemutex.html" ><TT CLASS="FUNCTION" >SDL_CreateMutex</TT ></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_UnlockMutex(m) SDL_mutexV(m)</TT >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7537" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlcreatemutex.html" ><TT CLASS="FUNCTION" >SDL_CreateMutex</TT ></A >, <A HREF="sdlmutexp.html" ><TT CLASS="FUNCTION" >SDL_mutexP</TT ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlmutexp.html" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlcreatesemaphore.html" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_mutexP</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="thread.html" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_CreateSemaphore</TD ></TR ></TABLE ></DIV ></BODY ></HTML >