119 lines
5.9 KiB
HTML
119 lines
5.9 KiB
HTML
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<title>Extend the watch function using the watch exit program example</title>
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<body id="extendwatchexitpgm"><a name="extendwatchexitpgm"><!-- --></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">Extend the watch function using the watch exit program example</h1>
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<div><p><span>Using the example exit program as a starting
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point, you can modify the code to allow the program to perform additional
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function.</span></p>
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<div class="section"><p>The following table provides suggestions for ways
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you can extend the capability of the watch function on your system by performing
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different actions based on the Trace option setting parameter in the exit
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program. Refer to each Trace option setting parameter value and the corresponding
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sample functions that can be performed.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><thead align="left"><tr><th valign="top" id="d0e25">Trace option setting parameter value</th>
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<th valign="top" id="d0e27">Sample functions that can be performed</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e25 ">*ON</td>
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<td valign="top" headers="d0e27 "> <ul><li>To set up the environment right before the trace starts. For example: <ul><li>Start a process</li>
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<li>Run commands</li>
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<li>Change some special values</li>
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</ul>
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</li>
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<li>To register the status of the system right before the trace starts. For
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example: <ul><li>Retrieve system values</li>
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<li>Dump a job</li>
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<li>Dump key objects for problem analysis</li>
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</ul>
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</li>
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<li>To verify that everything is ready for the trace and the watch function
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to start. For example: <ul><li>Check certain system values</li>
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<li>Check for the existence of key objects. </li>
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</ul>
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If the exit program detects that something is not ready, the value *STOP
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for the Output parameter could be specified to prevent the trace command and
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the watch function from starting.</li>
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</ul>
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</td>
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</tr>
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<tr><td valign="top" headers="d0e25 ">*MSGID or *LICLOG</td>
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<td valign="top" headers="d0e27 "> <ul><li>To register the final status of the system right after the event being
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watched for occurs. For example: <ul><li>Retrieve system values</li>
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<li>Dump a job</li>
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<li>Dump key objects for problem analysis</li>
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</ul>
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</li>
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<li>To set the environment back to the initial status. For example: <ul><li>End a process</li>
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<li>Run commands</li>
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<li>Change special values</li>
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</ul>
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</li>
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</ul>
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</td>
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</tr>
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<tr><td valign="top" headers="d0e25 ">*COMPDATA</td>
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<td valign="top" headers="d0e27 ">The exit program can determine whether the trace and
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the watch function should stop or continue running. This is determined by
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returning *STOP or *CONTINUE for the Output parameter.</td>
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</tr>
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<tr><td valign="top" headers="d0e25 ">*INTVAL</td>
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<td valign="top" headers="d0e27 "> <ul><li>To perform activities periodically. For example, dump key objects for
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problem analysis.</li>
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<li>To check conditions periodically. For example, check for the existence
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of key objects. The exit program can determine whether the trace and the watch
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function should stop or continue running. This is determined by returning
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*STOP or *CONTINUE for the Output parameter.</li>
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</ul>
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</td>
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</tr>
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<tr><td valign="top" headers="d0e25 ">*WCHTIMO</td>
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<td valign="top" headers="d0e27 ">To set the environment back to the initial status. For
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example: <ul><li>End a process</li>
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<li>Run commands</li>
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<li>Change some special values</li>
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</ul>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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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="rzakuwatchexitpgmandexample.htm" title="You can specify exit programs in the trace program parameter to extend the capability of the watch function.">Example: Watch exit program</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="rzakuexitprogramexample.htm" title="This is sample code for a watch trace exit program. It is written in control language (CL).">Example: Watch exit program</a></div>
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</div>
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