69 lines
4.6 KiB
HTML
69 lines
4.6 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta name="DC.Type" content="task" />
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<meta name="DC.Title" content="Transfer control to improve performance" />
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<meta name="abstract" content="The Transfer Control (TFRCTL) command calls the program specified on the command, passes control to it, and removes the transferring program from the call stack." />
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<meta name="description" content="The Transfer Control (TFRCTL) command calls the program specified on the command, passes control to it, and removes the transferring program from the call stack." />
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<meta name="DC.subject" content="call stack, TFRCTL (Transfer Control) command, Transfer Control (TFRCTL) command, command, CL, TFRCTL (Transfer Control), Transfer Control (TFRCTL), control, transferring, description, performance, benefit, using TFRCTL command" />
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<meta name="keywords" content="call stack, TFRCTL (Transfer Control) command, Transfer Control (TFRCTL) command, command, CL, TFRCTL (Transfer Control), Transfer Control (TFRCTL), control, transferring, description, performance, benefit, using TFRCTL command" />
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<meta name="DC.Relation" scheme="URI" content="clpro.htm" />
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<meta name="DC.Relation" scheme="URI" content="tfr.htm" />
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<meta name="DC.Relation" scheme="URI" content="tfrpp.htm" />
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<meta name="DC.Relation" scheme="URI" content="../cl/tfrctl.htm" />
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<meta name="DC.Relation" scheme="URI" content="../cl/call.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Identifier" content="tfrct" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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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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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Transfer control to improve performance</title>
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</head>
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<body id="tfrct"><a name="tfrct"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Transfer control to improve performance</h1>
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<div><p>The <span class="cmdname">Transfer Control (TFRCTL)</span> command calls
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the program specified on the command, passes control to it, and removes the
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transferring program from the call stack. </p>
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<div class="section"> <div class="p"> Reducing the number of programs on the call stack can have a
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performance benefit. When a <span class="cmdname">Call (CALL)</span> command is used,
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the program called returns control to the program containing the <span class="cmdname">Call
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(CALL)</span> command. When a <span class="cmdname">Transfer Control (TFRCTL)</span> command
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is used, control returns to the first program in the call stack. The first
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program then initiates the next sequential instruction following the <span class="cmdname">Call
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(CALL)</span> command. <div class="note"><span class="notetitle">Note:</span> The <span class="cmdname">Transfer Control (TFRCTL)</span> command
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is not valid in ILE CL procedures.</div>
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</div>
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</div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="tfr.htm">Example: Use the Transfer Control (TFRCTL) command</a></strong><br />
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This is an example of transferring control to improve performance.</li>
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<li class="ulchildlink"><strong><a href="tfrpp.htm">Pass parameters using TRFCTL</a></strong><br />
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You can pass parameters to the program being called using the <span class="cmdname">Transfer
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Control (TFRCTL)</span> command.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="clpro.htm" title="This provides tasks and concepts specific to CL programming.">CL programming</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="../cl/tfrctl.htm">Transfer Control (TFRCTL) command</a></div>
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<div><a href="../cl/call.htm">Call (CALL) command</a></div>
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</div>
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</div>
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</body>
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</html>
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