81 lines
4.7 KiB
HTML
81 lines
4.7 KiB
HTML
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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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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="VARBUFMGT (Variable Buffer Management) keyword for ICF files" />
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<meta name="abstract" content="Use this record-level keyword to send or receive multiple or partial records using one record format per output operation." />
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<meta name="description" content="Use this record-level keyword to send or receive multiple or partial records using one record format per output operation." />
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<meta name="DC.subject" content="VARBUFMGT (Variable Buffer Management) keyword, Variable Buffer Management (VARBUFMGT) keyword" />
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<meta name="keywords" content="VARBUFMGT (Variable Buffer Management) keyword, Variable Buffer Management (VARBUFMGT) keyword" />
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<meta name="DC.Relation" scheme="URI" content="rzakemstckeyw.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2001, 2006" />
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<meta name="DC.Identifier" content="icfvarb" />
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<title>ICF Files, VARBUFMGT</title>
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</head>
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<body id="icfvarb"><a name="icfvarb"><!-- --></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">VARBUFMGT (Variable Buffer Management) keyword for ICF files</h1>
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<div><p>Use this record-level keyword to send or receive multiple or partial
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records using one record format per output operation.</p>
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<div class="section"><p>On a send operation, you must specify the length of data to be
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sent using the VARLEN keyword. Otherwise, the length of the record format
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is used. On a receive operation, the length of data received is the length
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of the record format.</p>
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<p>This keyword has no parameters.</p>
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<p>VARBUFMGT
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is ignored at run time when a CANCEL, EOS, FAIL, NEGRSP, RSPCONFIRM, or RQSWRT
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keyword is in effect. These keywords must have option indicators when they
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apply to a record that has the VARBUFMGT keyword specified. If a CANCEL,
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EOS, FAIL, NEGRSP, or RQSWRT keyword with no option indicator applies to a
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record for which VARBUFMGT applies, an error message results and the VARBUFMGT
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keyword is ignored at create time.</p>
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<p>Specify at least one data field (usage
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B or blank) for the user data in the record format.</p>
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<div class="p">You cannot specify
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the VARBUFMGT keyword: <ul><li>When the TIMER keyword is used</li>
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<li>On the same record format as the RECID keyword</li>
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<li>On the RECID or INVITE default record formats</li>
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</ul>
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</div>
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<p>Option indicators are not valid for this keyword.</p>
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</div>
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<div class="example"><h4 class="sectiontitle">Example</h4> <p>The following example shows how to specify
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the VARBUFMGT keyword.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A R MULTFMT1
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00020A VARBUFMGT
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00030A DATAFLD 32A
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00040A R MULTFMT2
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00050A VARLEN(&LENFLD);
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00060A VARBUFMGT
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00070A DATAFLD 32A
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00080A LENFLD 5S P</pre>
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<p>Suppose <samp class="codeph">42THIS
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RECORD WILL NOT FIT INTO ONE BUFFER</samp> was the data to be sent or received.
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The VARBUFMGT keyword on the first record format sends or receives the first
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32 bytes of data. The second record format sends 10 bytes of data. The data
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length of 10 is set in LENFLD.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzakemstckeyw.htm" title="These topics contain the keyword entries that you can specify when you define ICF files.">DDS keyword entries for ICF files (positions 45 through 80)</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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