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3.1 KiB
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68 lines
3.1 KiB
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<META HTTP-EQUIV="CONTENT-TYPE" CONTENT="text/html; charset=utf-8">
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<TITLE>PTHREAD_WIN32_TEST_FEATURES_NP manual page</TITLE>
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</HEAD>
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<BODY LANG="en-GB" BGCOLOR="#ffffff" DIR="LTR">
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<H4>POSIX Threads for Windows – REFERENCE - <A HREF="http://sources.redhat.com/pthreads-win32">Pthreads-w32</A></H4>
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<P><A HREF="index.html">Reference Index</A></P>
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<P><A HREF="#toc">Table of Contents</A></P>
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<H2><A HREF="#toc0" NAME="sect0">Name</A></H2>
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<P STYLE="font-weight: medium">pthread_win32_test_features_np –
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find out what features were detected at process attach time.</P>
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<H2><A HREF="#toc1" NAME="sect1">Synopsis</A></H2>
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<P><B>#include <pthread.h></B>
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</P>
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<P><B>BOOL pthread_win32_test_features_np(int</B> <I>mask</I><B>);</B></P>
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<H2><A HREF="#toc2" NAME="sect2">Description</A></H2>
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<P><B>pthread_win32_test_features_np</B> allows an application to
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check which run-time auto-detected features are available within the
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library.</P>
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<P>The possible features are:</P>
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<P><B>PTW32_SYSTEM_INTERLOCKED_COMPARE_EXCHANGE</B></P>
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<P STYLE="margin-left: 2cm">Return TRUE if the Win32 version of
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InterlockedCompareExchange() is being used. On IA32 systems the
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library can use optimised and inlinable assembler versions of
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InterlockedExchange() and InterlockedCompareExchange().</P>
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<P><B>PTW32_ALERTABLE_ASYNC_CANCEL</B></P>
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<P STYLE="margin-left: 2cm">Return TRUE if the QueueUserAPCEx package
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QUSEREX.DLL and the AlertDrv.sys driver was detected. This package
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provides alertable (pre-emptive) asynchronous threads cancellation.
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If this feature returns FALSE then the default async cancel scheme is
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in use, which cannot cancel blocked threads.</P>
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<H2><A HREF="#toc3" NAME="sect3">Cancellation</A></H2>
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<P>None.</P>
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<H2><A HREF="#toc4" NAME="sect4"><FONT COLOR="#000080">Return Value</FONT></A></H2>
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<P><B>pthread_win32_test_features_np</B> returns TRUE (non-zero) if
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the specified feature is present, and FALSE (0) otherwise.</P>
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<H2><A HREF="#toc5" NAME="sect5">Errors</A></H2>
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<P>None.</P>
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<H2><A HREF="#toc6" NAME="sect6">Author</A></H2>
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<P>Ross Johnson for use with <A HREF="http://sources.redhat.com/pthreads-win32">Pthreads-w32</A>.</P>
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<HR>
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<P><A NAME="toc"></A><B>Table of Contents</B></P>
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<UL>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect0" NAME="toc0">Name</A>
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</P>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect1" NAME="toc1">Synopsis</A>
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</P>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect2" NAME="toc2">Description</A>
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</P>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect3" NAME="toc3">Cancellation</A>
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</P>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect4" NAME="toc4">Return
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Value</A>
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</P>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect5" NAME="toc5">Errors</A>
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</P>
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<LI><P><A HREF="#sect6" NAME="toc6">Author</A>
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</P>
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</UL>
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</BODY>
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</HTML>
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