155 lines
4.6 KiB
HTML
155 lines
4.6 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>Primitive data types for Pthreads</title>
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<!-- Begin Header Records ========================================== -->
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<!-- NETMG2 SCRIPT A converted by B2H R4.1 (346) (CMS) by HOLTJM at -->
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<!-- RCHVMW2 on 29 Jan 1999 at 10:01:37 -->
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<!-- File Edited November 2001 -->
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<!-- End Header Records -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<a name="Top_Of_Page"></a>
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<!-- Java sync-link -->
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<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<h2>Primitive data types for Pthreads</h2>
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<p>The Pthread types and functions have the following naming conventions. If
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the type of object is not a thread, <strong>object</strong> represents the type
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of object, <strong>action</strong> is an operation to be performed on the
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object, <strong>np</strong> or <strong>NP</strong> indicates that the name or
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symbol is a non-portable extension to the API set, and <strong>PURPOSE</strong>
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indicates the use or purpose of the symbol.</p>
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<dl>
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<dt><strong>types</strong></dt>
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<dd>pthread[<em>_object</em>][<strong>_np</strong>]_t<br>
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<br>
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</dd>
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<dt><strong>functions</strong></dt>
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<dd>pthread[<em>_object</em>]_action[<strong>_np</strong>]<br>
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<br>
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</dd>
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<dt><strong>Constants and Macros</strong></dt>
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<dd>PTHREAD_<em>PURPOSE</em>[<strong>_NP</strong>]</dd>
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</dl>
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<table border width="80%">
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<tr>
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<th valign="top">Type</th>
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<th valign="top">Description</th>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_attr_t</td>
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<td align="left" valign="top">Thread creation attribute</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_cleanup_entry_np_t</td>
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<td align="left" valign="top">Cancellation cleanup handler entry</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_condattr_t</td>
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<td align="left" valign="top">Condition variable creation attribute</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_cond_t</td>
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<td align="left" valign="top">Condition Variable synchronization primitive</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_joinoption_np_t</td>
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<td align="left" valign="top">Options structure for extensions to
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pthread_join()</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_key_t</td>
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<td align="left" valign="top">Thread local storage key</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_mutexattr_t</td>
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<td align="left" valign="top">Mutex creation attribute</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_mutex_t</td>
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<td align="left" valign="top">Mutex (Mutual exclusion) synchronization
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primitive</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_once_t</td>
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<td align="left" valign="top">Once time initialization control variable</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_option_np_t</td>
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<td align="left" valign="top">Pthread run-time options structure</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_rwlockattr_t</td>
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<td align="left" valign="top">Read/Write lock attribute</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_rwlock_t</td>
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<td align="left" valign="top">Read/Write synchronization primitive</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_t</td>
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<td align="left" valign="top">Pthread handle</td>
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</tr>
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<tr>
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<td align="left" valign="top">pthread_id_np_t</td>
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<td align="left" valign="top">Thread ID. For use as an integral type.</td>
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</tr>
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<tr>
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<td align="left" valign="top">struct sched_param</td>
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<td align="left" valign="top">Scheduling parameters (priority and policy)</td>
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</tr>
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</table>
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<p>After creating the primitive objects of type <strong>pthread_cond_t</strong>
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and <strong>pthread_mutex_t</strong> using the appropriate initialization
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functions, those objects must not be copied or moved to a new location. If the
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condition variable or mutex is copied or moved to a new location, the new
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primitive object is not valid or usable. Attempts to use the new object result
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in the <strong>EINVAL</strong> error.</p>
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center">
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<a href="#Top_Of_Page">Top</a> |
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<a href="rzah4mst.htm">Pthread APIs</a> |
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<a href="aplist.htm">APIs by category</a></td>
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</tr>
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</table>
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</center>
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</body>
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</html>
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