<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation"> <title>Feature test macros for Pthreads</title> <!-- Begin Header Records ========================================== --> <!-- All rights reserved. Licensed Materials Property of IBM --> <!-- US Government Users Restricted Rights --> <!-- Use, duplication or disclosure restricted by --> <!-- GSA ADP Schedule Contract with IBM Corp. --> <!-- NETMG2 SCRIPT A converted by B2H R4.1 (346) (CMS) by HOLTJM at --> <!-- RCHVMW2 on 29 Jan 1999 at 10:01:37 --> <!-- File Edited November 2001 --> <!-- End Header Records --> <link rel="stylesheet" type="text/css" href="../rzahg/ic.css"> </head> <body> <a name="Top_Of_Page"></a> <!-- Java sync-link --> <script language="Javascript" src="../rzahg/synch.js" type="text/javascript"> </script> <h2>Feature test macros for Pthreads</h2> <table border> <tr> <th valign="top">Constant</th> <th valign="top">Description</th> </tr> <tr> <td align="left" valign="top">_POSIX_THREADS</td> <td align="left" valign="top">Base threads</td> </tr> <tr> <td align="left" valign="top">_POSIX_THREAD_ATTR_STACKADDR</td> <td align="left" valign="top">Stack address attribute. Not present in the i5/OS implementation.</td> </tr> <tr> <td align="left" valign="top">_POSIX_THREAD_ATTR_STACKSIZE</td> <td align="left" valign="top">Stack size attribute. Not present in the i5/OS implementation.</td> </tr> <tr> <td align="left" valign="top"> _POSIX_THREAD_PRIORITY_SCHEDULING</td> <td align="left" valign="top">Thread priority scheduling. Not present in the i5/OS implementation.</td> </tr> <tr> <td align="left" valign="top">_POSIX_THREAD_PRIO_INHERIT</td> <td align="left" valign="top">Mutex priority inheritance. Not present in the i5/OS implementation.</td> </tr> <tr> <td align="left" valign="top">_POSIX_THREAD_PRIO_PROTECT</td> <td align="left" valign="top">Mutex priority ceiling. Not present in the i5/OS implementation.</td> </tr> <tr> <td align="left" valign="top">_POSIX_THREAD_PROCESS_SHARED</td> <td align="left" valign="top">Synchronization primitives may be shared between processes.</td> </tr> </table> <p>The i5/OS implementation of pthreads defines the <strong> _POSIX_THREADS</strong> and <strong>_POSIX_THREAD_PROCESS_SHARED</strong> feature test macros. See <a href="concep11.htm">Unsupported preprocessor and feature test macros</a> for a complete list of unsupported feature test macros.</p> <hr> <center> <table cellpadding="2" cellspacing="2"> <tr align="center"> <td valign="middle" align="center"> <a href="rzah4mst.htm">Pthread APIs</a> | <a href="aplist.htm">APIs by category</a></td> </tr> </table> </center> </body> </html>