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view docs/html/sdlmutexv.html @ 1013:a649064a3215
Date: Tue, 14 Dec 2004 12:08:30 +0100
From: Marcin Konicki
Subject: Re: [SDL] SDL 1.2.8 Prerelease
I'm sending small fix for BeOS, which prevents filling up SDL's message
queue too fast.
Without it, SDL receives "key down" messages from BeOS code, for each key
repeat (BeOS handles key repeats itself, and application can check if
received "key down" message from BeOS is first time key down, or if it's
repeat, and which repeat it is). Since there is no way for "sdl driver" to
turn off "default" SDL's key-repeat mechanism, they were working both at
the same time (and queue could be filled up very fast).
So this patch removes handling "key down" message from BeOS if it's
key_repeat "type".
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 14 Dec 2004 18:23:27 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_mutexV</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_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 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="sdlmutexp.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlcreatesemaphore.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLMUTEXV" ></A >SDL_mutexV</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN7905" ></A ><H2 >Name</H2 >SDL_mutexV -- Unlock a mutex</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN7908" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN7909" ></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="AEN7915" ></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="AEN7925" ></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 SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlmutexp.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="sdlcreatesemaphore.html" ACCESSKEY="N" >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" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_CreateSemaphore</TD ></TR ></TABLE ></DIV ></BODY ></HTML >