193 lines
5.7 KiB
HTML
193 lines
5.7 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>_ILESYMX()--Find an Exported ILE Symbol for i5/OS PASE</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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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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<!--Edited by Kersten Jan 2002 -->
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<!-- Created by V2DCIJB on 23 Nov 1999 -->
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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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<!-- Java sync-link -->
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<script type="text/javascript" language="Javascript" src="../rzahg/synch.js">
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</script>
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<a name="Top_Of_Page"></a>
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<h2>_ILESYMX()--Find an Exported ILE Symbol for i5/OS PASE</h2>
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<div class="box" style="width: 70%;">
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<br>
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Syntax
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<pre>
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#include <as400_protos.h>
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int _ILESYMX(ILEpointer *export,
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unsigned long long actmark,
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const char *symbol);
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int _ILESYM(ILEpointer *export,
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int actmark,
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const char *symbol);
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</pre>
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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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Library: Standard C Library (libc.a)<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Yes<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p><strong>Note:</strong> These functions can only be used in an i5/OS PASE
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program. See <a href="../rzalf/rzalfintro.htm">i5/OS PASE</a> for more
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information about creating i5/OS PASE programs.</p>
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<p>The <strong>_ILESYMX()</strong> and <strong>_ILESYM()</strong> functions find an exported symbol in the
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activation of an ILE bound program and return a 16-byte tagged pointer to the
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data or procedure for the symbol.</p>
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<br>
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<h3>Parameters</h3>
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<dl>
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<dt><strong>export</strong></dt>
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<dd>(Output) Pointer to a 16-byte aligned buffer for the tagged pointer return
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value. The export buffer used to store a tagged pointer to the data or
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procedure for the exported symbol.<br><br></dd>
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<dt><strong>actmark</strong></dt>
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<dd>(Input) Specifies an activation mark that identifies the activation (in the
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current i5/OS job) to search for the symbol. A value of zero causes the system
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to search all activations in the activation group that started i5/OS PASE
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(either the activation group that called the <strong>Qp2RunPase</strong> API,
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or the default activation group for a job running program
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<strong>QP2FORK</strong>). The <strong>_ILELOADX</strong> and <strong>_ILELOAD</strong>
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functions return an
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activation mark when they load a bound program.
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64-bit activation mark values can only be handled by <strong>_ILESYMX</strong>
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and <strong>_ILELOADX</strong>.<br>
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<br>
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</dd>
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<dt><strong>symbol</strong></dt>
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<dd>(Input) Pointer to the symbol name to find. symbol is the address of a
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null-terminated character string in the i5/OS PASE CCSID that specifies the
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name of a symbol exported by the actmark activation.</dd>
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</dl>
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<br>
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<h3>Authorities</h3>
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<p><strong>_ILESYMX</strong> and <strong>_ILESYM</strong> call the ILE <strong>QleGetExpLong</strong> API to
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find the exported symbol. See <a href="qlegetexpl.htm">QleGetExpLong()--Get
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Export Long</a> for information about authorities required to use _ILESYMX and _ILESYM.</p>
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<br>
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<h3>Return Value</h3>
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<p>A function result of -1 indicates an error that is further qualified by an
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errno value. If the symbol was successfully found, the export pointer is set to
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the address of the function or data for the symbol, and the function result is
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set to one of these values:</p>
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<table cellpadding="5">
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<!-- cols="25 75" -->
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<tr>
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<td align="left" valign="top" nowrap><em>ILESYM_PROCEDURE (1)</em> </td>
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<td align="left" valign="top">The export return value is a tagged pointer to an ILE
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procedure. An ILE procedure pointer can be used with the _ILECALLX
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function to call the ILE procedure.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>ILESYM_DATA(2)</em> </td>
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<td align="left" valign="top">The export return value is a tagged space pointer to a data
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item in the ILE activation.</td>
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</tr>
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</table>
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<br>
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<br>
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<h3>Error Conditions</h3>
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<p>Memory errors and errors during ILE symbol resolution processing may be
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reported with an i5/OS exception message that the system converts to an i5/OS
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PASE signal (not return code and errno values). See <a href=
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"pase_signals.htm">i5/OS PASE Signal Handling</a> for information about
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handling i5/OS exceptions.</p>
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<p>At least these errno values can be returned, with other values also possible
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(such as i5/OS-unique ILE errno EAPAR):</p>
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<table cellpadding="5">
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<!-- cols="25 75" -->
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<tr>
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<td align="left" valign="top"><em>[EACCES]</em></td>
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<td align="left" valign="top">Not authorized to the actmark activation.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>[ENOENT]</em></td>
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<td align="left" valign="top">The symbol was not found in the actmark
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activation.</td>
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</tr>
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</table>
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<br>
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<br>
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<h3>Related Information</h3>
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<ul>
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<li><a href="pase__ileload.htm">_ILELOADX()--Load an ILE Bound Program for
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i5/OS PASE</a></li>
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<li><a href="pase__ilecall.htm">_ILECALLX()--Call an ILE Procedure for i5/OS
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PASE</a></li>
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</ul>
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<hr>
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API introduced: V4R5
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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"><a href="#Top_Of_Page">Top</a> | <a href=
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"pase1.htm">i5/OS PASE APIs</a> | <a href="aplist.htm">APIs by category</a>
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</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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