<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <HEAD> <META HTTP-EQUIV="CONTENT-TYPE" CONTENT="text/html; charset=utf-8"> <TITLE>PTHREADCANCELLABLEWAIT manual page</TITLE> <META NAME="GENERATOR" CONTENT="OpenOffice.org 1.1.3 (Linux)"> <META NAME="CREATED" CONTENT="20050505;322600"> <META NAME="CHANGED" CONTENT="20050505;23242300"> <!-- manual page source format generated by PolyglotMan v3.2, --> <!-- available at http://polyglotman.sourceforge.net/ --> </HEAD> <BODY LANG="en-GB" BGCOLOR="#ffffff" DIR="LTR"> <H4>POSIX Threads for Windows – REFERENCE - <A HREF="http://sources.redhat.com/pthreads-win32">Pthreads-w32</A></H4> <P><A HREF="index.html">Reference Index</A></P> <P><A HREF="#toc">Table of Contents</A></P> <H2><A HREF="#toc0" NAME="sect0">Name</A></H2> <P STYLE="font-weight: medium">pthreadCancelableTimedWait, pthreadCancelableWait – provide cancellation hooks for user Win32 routines</P> <H2><A HREF="#toc1" NAME="sect1">Synopsis</A></H2> <P><B>#include <pthread.h></B> </P> <P><B>int pthreadCancelableTimedWait (HANDLE </B><I>waitHandle</I><B>, DWORD </B><I>timeout</I><B>);</B></P> <P><B>int pthreadCancelableWait (HANDLE </B><I>waitHandle</I><B>);</B></P> <H2><A HREF="#toc2" NAME="sect2">Description</A></H2> <P>These two functions provide hooks into the <A HREF="pthread_cancel.html"><B>pthread_cancel</B></A>() mechanism that will allow you to wait on a Windows handle and make it a cancellation point. Both functions block until either the given Win32 <B>HANDLE</B> is signalled, or <A HREF="pthread_cancel.html"><B>pthread_cancel</B></A>() has been called. They are implemented using <B>WaitForMultipleObjects</B> on <I>waitHandle</I> and the manually reset Win32 event handle that is the target of <A HREF="pthread_cancel.html"><B>pthread_cancel</B></A>(). These routines may be called from Win32 native threads but <A HREF="pthread_cancel.html"><B>pthread_cancel</B></A>() will require that thread's POSIX thread ID that the thread must retrieve using <A HREF="pthread_self.html"><B>pthread_self</B></A>().</P> <P><B>pthreadCancelableTimedWait</B> is the timed version that will return with the code <B>ETIMEDOUT</B> if the interval <I>timeout</I> milliseconds elapses before <I>waitHandle</I> is signalled.</P> <H2><A HREF="#toc3" NAME="sect3">Cancellation</A></H2> <P>These routines allow routines that block on Win32 HANDLEs to be cancellable via <A HREF="pthread_cancel.html"><B>pthread_cancel</B></A>().</P> <H2><A HREF="#toc4" NAME="sect4">Return Value</A></H2> <P><BR><BR> </P> <H2><A HREF="#toc5" NAME="sect5">Errors</A></H2> <P>The <B>pthreadCancelableTimedWait</B> function returns the following error code on error: </P> <DL> <DL> <DT STYLE="margin-right: 1cm; margin-bottom: 0.5cm"><B>ETIMEDOUT</B> </DT></DL> </DL> <P STYLE="margin-left: 2cm"> The interval <I>timeout</I> milliseconds elapsed before <I>waitHandle</I> was signalled.</P> <H2><A HREF="#toc6" NAME="sect6">Author</A></H2> <P>Ross Johnson for use with <A HREF="http://sources.redhat.com/pthreads-win32">Pthreads-w32</A>.</P> <H2><A HREF="#toc7" NAME="sect7">See also</A></H2> <P><A HREF="pthread_cancel.html"><B>pthread_cancel()</B></A>, <A HREF="pthread_self.html"><B>pthread_self()</B></A></P> <HR> <P><A NAME="toc"></A><B>Table of Contents</B></P> <UL> <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect0" NAME="toc0">Name</A> </P> <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect1" NAME="toc1">Synopsis</A> </P> <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect2" NAME="toc2">Description</A> </P> <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect3" NAME="toc3">Cancellation</A> </P> <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect4" NAME="toc4"></A><A HREF="#sect4" NAME="toc4">Return Value</A><A HREF="#sect4" NAME="toc4"></A> </P> <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect5" NAME="toc5">Errors</A> </P> <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect6" NAME="toc6">Author</A> </P> <LI><P><A HREF="#sect7" NAME="toc7">See also</A> </P> </UL> </BODY> </HTML>