57 lines
3.2 KiB
HTML
57 lines
3.2 KiB
HTML
<?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="concept" />
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<meta name="DC.Title" content="I/O feedback area" />
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<meta name="abstract" content="Find out when the I/O feedback area is updated and what it is updated with." />
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<meta name="description" content="Find out when the I/O feedback area is updated and what it is updated with." />
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<meta name="DC.Relation" scheme="URI" content="ioifa.htm" />
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<meta name="DC.Relation" scheme="URI" content="ciofa.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2004, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="fedbk" />
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<meta name="DC.Language" content="en-us" />
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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>I/O feedback area</title>
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</head>
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<body id="fedbk"><a name="fedbk"><!-- --></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">I/O feedback area</h1>
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<div><p>Find out when the I/O feedback area is updated and what it is updated
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with.</p>
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<p>The system communicates the results of I/O operations to the program using <span class="keyword">i5/OS™</span> messages
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and I/O feedback information. The system updates the I/O feedback area for
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every I/O operation unless your program uses a blocked record I/O. In that
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case, the system updates the feedback area only when you read or write a block
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of records. Some of the information reflects the last record in the block.
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Other information, such as the count of I/O operations, reflects the number
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of operations on blocks of records and not the number of records. See your
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high-level language manual to determine if your program uses blocked record
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I/O.</p>
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<p>The I/O feedback area consists of two parts: Common I/O Feedback Area
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and a file-dependent area. The file-dependent area varies by the file type.</p>
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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="ciofa.htm">Common I/O feedback area</a></strong><br />
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See a detailed table listing the information that might exist in the common I/O feedback area.</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="ioifa.htm" title="This information discusses open and I/O feedback areas.">Feedback area layouts</a></div>
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</div>
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</div>
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</body>
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</html> |