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| author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
| commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
| tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /pthreads/manual/pthread_timechange_handler_np.html | |
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Diffstat (limited to 'pthreads/manual/pthread_timechange_handler_np.html')
| -rw-r--r-- | pthreads/manual/pthread_timechange_handler_np.html | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/pthreads/manual/pthread_timechange_handler_np.html b/pthreads/manual/pthread_timechange_handler_np.html new file mode 100644 index 000000000..54226da7d --- /dev/null +++ b/pthreads/manual/pthread_timechange_handler_np.html @@ -0,0 +1,76 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<HTML> +<HEAD> + <META HTTP-EQUIV="CONTENT-TYPE" CONTENT="text/html; charset=utf-8"> + <TITLE>PTHREAD_TIMECHANGE_HANDLER_NP manual page</TITLE> + <META NAME="GENERATOR" CONTENT="OpenOffice.org 1.1.3 (Linux)"> + <META NAME="CREATED" CONTENT="20050505;322600"> + <META NAME="CHANGED" CONTENT="20050505;22110600"> + <!-- 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">pthread_timechange_handler_np – +alert timed waiting condition variables to system time changes.</P> +<H2><A HREF="#toc1" NAME="sect1">Synopsis</A></H2> +<P><B>#include <pthread.h></B> +</P> +<P><B>void * pthread_timechange_handler_np(void * </B><I>dummy</I><B>);</B></P> +<H2><A HREF="#toc2" NAME="sect2">Description</A></H2> +<P>To improve tolerance against operator or time service initiated +system clock changes.</P> +<P><B>pthread_timechange_handler_np </B>can be called by an +application when it receives a WM_TIMECHANGE message from the system. +At present it broadcasts all condition variables so that waiting +threads can wake up and re-evaluate their conditions and restart +their timed waits if required.</P> +<P><B>pthread_timechange_handler_np </B>has the same return type and +argument type as a thread routine so that it may be called directly +through pthread_create(), i.e. as a separate thread. If run as a +thread, the return code must be retrieved through <A HREF="pthread_join.html"><B>pthread_join</B>()</A>.</P> +<P>Although the <I>dummy</I> parameter is required it is not used and +any value including NULL can be given.</P> +<H2><A HREF="#toc3" NAME="sect3">Cancellation</A></H2> +<P>None.</P> +<H2><A HREF="#toc4" NAME="sect4"><FONT COLOR="#000080">Return Value</FONT></A></H2> +<P><B>pthread_timechange_handler_np</B> returns 0 on success, or an +error code.</P> +<H2><A HREF="#toc5" NAME="sect5">Errors</A></H2> +<P>The <B>pthread_timechange_handler_np</B> function returns the +following error code on error: +</P> +<DL> + <DL> + <DT STYLE="margin-right: 1cm; margin-bottom: 0.5cm"><B>EAGAIN</B> + </DT></DL> +</DL> +<P STYLE="margin-left: 2cm; margin-bottom: 0cm"> +To indicate that not all condition variables were signalled for some +reason.</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> +<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">Return + Value</A> + </P> + <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect5" NAME="toc5">Errors</A> + </P> + <LI><P><A HREF="#sect6" NAME="toc6">Author</A> + </P> +</UL> +</BODY> +</HTML> |