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<TITLE>PTHREADCANCELLABLEWAIT manual page</TITLE>
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<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>
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