174 lines
5.2 KiB
HTML
174 lines
5.2 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>Change Current Thread (QteChangeCurrentThread) API</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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<!-- DEBUG1 SCRIPT A converted by B2H R4.1 (346) (CMS) by V2KEA304 -->
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<!-- at RCHVMW2 on 29 Jan 1999 at 16:05:09 -->
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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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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>Change Current Thread (QteChangeCurrentThread) API</h2>
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<div class="box" style="width: 60%;">
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<br>
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Required Parameter Group:<br>
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<!-- iddvc RMBR -->
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<br>
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<table width="100%">
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<tr>
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<td align="center" valign="top" width="10%">1</td>
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<td align="left" valign="top" width="50%">Thread ID</td>
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<td align="left" valign="top" width="20%">Input</td>
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<td align="left" valign="top" width="20%">Char(8)</td>
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</tr>
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<tr>
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<td align="center" valign="top">2</td>
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<td align="left" valign="top">Error code</td>
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<td align="left" valign="top">I/O</td>
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<td align="left" valign="top">Char(*)</td>
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</tr>
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</table>
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Service Program: QTETHRD<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: No<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The Change Current Thread (QteChangeCurrentThread) API changes the current thread to any thread being debugged.</p>
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<blockquote>
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<p><strong>Note:</strong> A job may have several threads, each of which are debugged if the job is debugged. By default, the current thread is the initial thread of the debugged job, or the thread at a debug stop.</p>
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</blockquote>
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<p>A current thread has several properties that distinguish it from other threads being debugged:</p>
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<ul>
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<li>Debug commands are run in this thread.<br><br></li>
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<li>This is the first thread released after a return to the base debug support after a debug stop (breakpoint, step, watch, or unmonitored exception).<br><br></li>
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<li>If there are multiple debug stops at the same time, this thread is the first one processed.</li>
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</ul>
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<p>Before the current thread can be changed the new current thread must be stopped or halted and is waiting for debug to restart it. If this is not true, an error is returned to the API caller and the current thread is not changed.</p>
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<p>Threads debugging is supported if a service job is used to debug a job that was spawned by native threads support. If this is not the debug environment present when this API is called, a CPF958B error is
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returned.</p>
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<br>
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<!-- Please NOTE: DO NOT DELETE THIS SECTION if this API has no authorities and locks. -->
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<!-- Instead, use the commented out coding below to indicate NONE. -->
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<h3>Authorities and Locks</h3>
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<!-- Use this if there are no authorities and locks. -->
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<p>None.</p>
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<br>
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<h3>Required Parameter Group</h3>
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<dl>
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<dt><strong>Thread ID</strong></dt>
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<dd>INPUT; CHAR(8)
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<p>This is an 8-byte handle assigned by the system.</p>
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</dd>
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<dt><strong>Error code</strong></dt>
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<dd>I/O; CHAR(*)
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<p>The structure in which to return error information. For the format of the structure, see <a href="../apiref/error.htm#hdrerrcod">Error Code Parameter</a>.</p>
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</dd>
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</dl>
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<br>
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<h3>Error Messages</h3>
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<table width="100%" cellpadding="3">
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<!-- cols="15 85" -->
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<tr>
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<th align="left" valign="top">Message ID</th>
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<th align="left" valign="top">Error Message Text</th>
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</tr>
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<tr>
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<td align="left" valign="top">CPF3CF1 E</td>
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<td valign="top">Error code parameter not valid.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF3CF2 E</td>
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<td valign="top">Error(s) occurred during running of &1 API.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9541 E</td>
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<td valign="top">Not in debug mode.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9549 E</td>
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<td valign="top">Error addressing API parameter.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9589 E</td>
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<td valign="top">Thread &1 not stopped or halted.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF958A E</td>
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<td valign="top">Thread &1 not found.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF958B E</td>
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<td valign="top">Threads debugging not supported.</td>
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</tr>
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</table>
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<br>
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<hr>
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API introduced: V4R2
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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="debug1.htm">Debugger 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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<br>
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</body>
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</html>
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