233 lines
7.0 KiB
HTML
233 lines
7.0 KiB
HTML
|
<!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>Qp0zUprintf()--Print Formatted User Trace Data</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. -->
|
||
|
|
<!-- Change History: -->
|
||
|
|
<!-- YYMMDD USERID Change description -->
|
||
|
|
<!-- Direct1 SCRIPT J converted by B2H R4.1 (346) (CMS) by V2KEA304 -->
|
||
|
|
<!-- at RCHVMW2 on 17 Feb 1999 at 11:05:09 -->
|
||
|
|
<!-- Edited by Kersten Feb 02 -->
|
||
|
|
<!-- This file has undergone error code cleanup on 04/30/02 by JET -->
|
||
|
|
<!-- End Header Records -->
|
||
|
|
<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<!-- Java sync-link -->
|
||
|
|
<script type="text/javascript" language="Javascript" src="../rzahg/synch.js">
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<a name="Top_Of_Page"></a>
|
||
|
|
|
||
|
|
<h2>Qp0zUprintf()--Print Formatted User Trace Data</h2>
|
||
|
|
|
||
|
|
<div class="box" style="width: 60%;">
|
||
|
|
<br>
|
||
|
|
Syntax<br>
|
||
|
|
<pre>
|
||
|
|
#include <qp0ztrc.h>
|
||
|
|
|
||
|
|
int Qp0zUprintf(char <em>*format-string</em>, ...);
|
||
|
|
</pre>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
Service Program Name: QP0ZCPA<br>
|
||
|
|
<!-- iddvc RMBR -->
|
||
|
|
<br>
|
||
|
|
Default Public Authority: *USE<br>
|
||
|
|
<!-- iddvc RMBR -->
|
||
|
|
<br>
|
||
|
|
Threadsafe: Yes<br>
|
||
|
|
<!-- iddvc RMBR -->
|
||
|
|
<br>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<p>The <strong>Qp0zUprintf()</strong> function prints user data specified by
|
||
|
|
the <em>format-string</em> parameter to the user trace.</p>
|
||
|
|
|
||
|
|
<p>If a second parameter, <em>argument-list</em>, is provided, <strong>
|
||
|
|
Qp0zUprintf()</strong> converts each entry in the <em>argument-list</em> and
|
||
|
|
writes the entry to the user trace according to the corresponding format
|
||
|
|
specification in <em>format-string</em>. If there are more entries in <em>
|
||
|
|
argument-list</em> than format specifications in <em>format-string</em>, the
|
||
|
|
extra <em>argument-list</em> entries are evaluated and then ignored. If there
|
||
|
|
are less entries in <em>argument-list</em> than format specifications in <em>
|
||
|
|
format-string</em>, the user trace output for those entries is undefined, and
|
||
|
|
the <strong>Qp0zUprintf()</strong> function may return an error.</p>
|
||
|
|
|
||
|
|
<p>An application should not use the tracing function in performance critical
|
||
|
|
code. These functions are intended for debugging exception or error conditions.
|
||
|
|
The user trace is a permanent user space object named <em>
|
||
|
|
QP0Z<jobnumber></em> in the QUSRSYS library. The user trace is created
|
||
|
|
the first time any thread in a job writes trace output. See the Change User
|
||
|
|
Trace (CHGUSRTRC), Dump User Trace (DMPUSRTRC) and Delete User Trace
|
||
|
|
(DLTUSRTRC) CL commands for information about manipulating the user trace
|
||
|
|
properties and objects.</p>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<h3>Parameters</h3>
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><strong><em>format-string</em></strong></dt>
|
||
|
|
|
||
|
|
<dd>(Input) The format string representing the format of the data to be
|
||
|
|
printed. See the <strong>printf()</strong> function in the <a href=
|
||
|
|
"../books/sc092712.pdf" target="_blank">ILE C/C++ Programmer's Guide</a><img
|
||
|
|
src="wbpdf.gif" alt="Link to PDF"> for a description of valid format
|
||
|
|
strings.<br>
|
||
|
|
<br>
|
||
|
|
</dd>
|
||
|
|
|
||
|
|
<dt><strong><em>... (argument-list)</em></strong></dt>
|
||
|
|
|
||
|
|
<dd>(Input) An optional list of arguments that contain entries to be formatted
|
||
|
|
and printed to the user trace.</dd>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<h3>Authorities</h3>
|
||
|
|
|
||
|
|
<p>None.</p>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<h3>Return Value</h3>
|
||
|
|
|
||
|
|
<table cellpadding="5">
|
||
|
|
<!-- cols="10 90" -->
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top"><em>value</em></td>
|
||
|
|
<td align="left" valign="top"><strong>Qp0zUprintf()</strong> was successful.
|
||
|
|
The value returned is the number of characters successfully printed.</td>
|
||
|
|
</tr>
|
||
|
|
|
||
|
|
<tr>
|
||
|
|
<td align="left" valign="top"><em>-1</em></td>
|
||
|
|
<td align="left" valign="top"><strong>Qp0zUprintf()</strong> was not
|
||
|
|
successful. The <em>errno</em> variable is set to indicate the error.</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<br>
|
||
|
|
<h3>Error Conditions</h3>
|
||
|
|
|
||
|
|
<p>If <strong>Qp0zUprintf()</strong> is not successful, <em>errno</em>
|
||
|
|
indicates one of the following errors. Under some conditions, <em>errno</em>
|
||
|
|
could indicate an error other than those listed here.</p>
|
||
|
|
|
||
|
|
<dl>
|
||
|
|
<dt><em>[EINVAL]</em></dt>
|
||
|
|
|
||
|
|
<dd>
|
||
|
|
<p>The value specified for the argument is not correct.</p>
|
||
|
|
|
||
|
|
<p>A function was passed incorrect argument values, or an operation was
|
||
|
|
attempted on an object and the operation specified is not supported for that
|
||
|
|
type of object.</p>
|
||
|
|
|
||
|
|
<p>An argument value is not valid, out of range, or NULL. An invalid <em>
|
||
|
|
format-string</em> or <em>argument-list</em> was specified.</p>
|
||
|
|
</dd>
|
||
|
|
|
||
|
|
<dt><em>[EFAULT]</em></dt>
|
||
|
|
|
||
|
|
<dd>
|
||
|
|
<p>The address used for an argument is not correct.</p>
|
||
|
|
|
||
|
|
<p>In attempting to use an argument in a call, the system detected an address
|
||
|
|
that is not valid.</p>
|
||
|
|
|
||
|
|
<p>While attempting to access a parameter passed to this function, the system
|
||
|
|
detected an address that is not valid.</p>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<h3><a name="USAGE_NOTES">Usage Notes</a></h3>
|
||
|
|
|
||
|
|
<ol>
|
||
|
|
<li>No locks are held on the user trace between calls to the tracing functions.
|
||
|
|
The user trace can be deleted while in use. The next function that produces
|
||
|
|
trace output will create the user trace again.<br>
|
||
|
|
<br>
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li>If another job on the system has the same job number as an existing user
|
||
|
|
trace, the existing trace data is cleared, and the trace data from the new job
|
||
|
|
replaces it.<br>
|
||
|
|
<br>
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li>As the format of the user trace records can change, only the following CL
|
||
|
|
commands can be used to manipulate the user trace properties and objects:<br>
|
||
|
|
<br>
|
||
|
|
<ul>
|
||
|
|
<li>Change User Trace (CHGUSRTRC) can be used to change the characteristics of
|
||
|
|
the user trace.<br>
|
||
|
|
<br>
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li>Dump User Trace (DMPUSRTRC) can be used to dump trace records to a file or
|
||
|
|
to standard output.<br>
|
||
|
|
<br>
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li>Delete User Trace (DLTUSRTRC) can be used to delete the user trace
|
||
|
|
objects.</li>
|
||
|
|
</ul>
|
||
|
|
</li>
|
||
|
|
</ol>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<h3>Related Information</h3>
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li><a href="p0zdmp.htm">Qp0zDump()</a>--Dump Formatted Storage Trace Data<br>
|
||
|
|
<br>
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li><a href="p0zdmps.htm">Qp0zDumpStack()</a>--Dump Formatted Stack Trace
|
||
|
|
Data<br>
|
||
|
|
<br>
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li><a href="p0zdmpt.htm">Qp0zDumpTargetStack()</a>--Dump Formatted Stack Trace
|
||
|
|
Data of the Target Thread<br>
|
||
|
|
<br>
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li><a href="p0zlog.htm">Qp0zLprintf()</a>--Print Formatted Job Log Data</li>
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<h3>Example</h3>
|
||
|
|
|
||
|
|
<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
|
||
|
|
for information pertaining to code examples.</p>
|
||
|
|
|
||
|
|
<p>See <a href="p0zdmp.htm">Qp0zDump()</a>--Dump Formatted Storage Trace
|
||
|
|
Data.</p>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
<hr>
|
||
|
|
API introduced: V4R3
|
||
|
|
|
||
|
|
<hr>
|
||
|
|
<center>
|
||
|
|
<table cellpadding="2" cellspacing="2">
|
||
|
|
<tr align="center">
|
||
|
|
<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
|
||
|
|
"unix.htm">UNIX-Type APIs</a> | <a href="aplist.htm">APIs by category</a></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</center>
|
||
|
|
</body>
|
||
|
|
</html>
|
||
|
|
|