Mercurial > sdl-ios-xcode
view docs/html/sdlkillthread.html @ 4137:be12463f31ea SDL-1.2
Date: Sat, 2 Feb 2008 22:08:05 +0100
From: Marcus von Appen
To: sdl@lists.libsdl.org
Subject: [SDL] [Patch] SDL-1.2 SDL_revcpy() asm patch for the cld flag
Hi,
as reported through the FreeBSD bug tracking system in SDL 1.2.13 (and
in the 1.2 branch, if I see that correctly) the SDL_revcpy() macro sets
the direction flag (std), but does not clear it afterwards (cld), which
is wrong according to the GCC and SYS V specs. This can cause some
weird side effects, which in turn can lead to memory corruption.
You can read the full report with a detailed description and test
program at http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/120052
Attached is the submitted patch, which fixes the issue.
Regards
Marcus
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Mon, 04 Feb 2008 17:22:56 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_KillThread</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_WaitThread" HREF="sdlwaitthread.html"><LINK REL="NEXT" TITLE="SDL_CreateMutex" HREF="sdlcreatemutex.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="sdlwaitthread.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlcreatemutex.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLKILLTHREAD" ></A >SDL_KillThread</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN7794" ></A ><H2 >Name</H2 >SDL_KillThread -- Gracelessly terminates the thread.</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN7797" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN7798" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h" #include "SDL_thread.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >void <B CLASS="FSFUNC" >SDL_KillThread</B ></CODE >(SDL_Thread *thread);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7804" ></A ><H2 >Description</H2 ><P ><TT CLASS="FUNCTION" >SDL_KillThread</TT > gracelessly terminates the thread associated with <TT CLASS="PARAMETER" ><I >thread</I ></TT >. If possible, you should use some other form of IPC to signal the thread to quit.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7809" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlcreatethread.html" ><TT CLASS="FUNCTION" >SDL_CreateThread</TT ></A >, <A HREF="sdlwaitthread.html" ><TT CLASS="FUNCTION" >SDL_WaitThread</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="sdlwaitthread.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="sdlcreatemutex.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_WaitThread</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_CreateMutex</TD ></TR ></TABLE ></DIV ></BODY ></HTML >