76 lines
6.2 KiB
HTML
76 lines
6.2 KiB
HTML
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<!DOCTYPE html
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<meta name="DC.Title" content="Completion with exceptions of errors by the server" />
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<meta name="abstract" content="The server assigns several rather specific major return codes such as 02, 03, 0309, and so on to conditions for which a specific response from the application program is appropriate." />
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<title>Completion with exceptions of errors by the server</title>
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<body id="rbal3comex"><a name="rbal3comex"><!-- --></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">Completion with exceptions of errors by the server</h1>
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<div><p>The server assigns several rather specific major return codes such
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as 02, 03, 0309, and so on to conditions for which a specific
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response from the application program is appropriate.</p>
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<p>A major return code of 02 indicates that the requested input operation
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completed successfully, but the server is ending the job in a controlled. The application program should complete its processing as quickly as possible. The controlled cancel is intended to allow programs time to end in an orderly
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manner. If your program does not end within the time specified on the <a href="../cl/endjob.htm">ENDJOB</a> command,
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the server will end the job without further notice.</p>
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<p>A major return code of 03 indicates that an input operation completed successfully
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without transferring any data. For some applications, this might be an error
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condition, or it might be expected when the user presses a function key instead
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of entering data. It might also indicate that all the data has been processed,
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and the application program should proceed with its completion processing. In any case, the contents of the input buffer in the program should be ignored.</p>
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<p>A major and minor code of 0309 indicates that the server received no data <em>and</em> is
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ending the job in a controlled manner. A major and minor code of 0310 indicates
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that there is no data because the specified wait time has ended. Other minor
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return codes accompanying the 02 or 03 major code are the same as for a 00
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major code, indicating communications status and the operation to be performed
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next.</p>
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<p>A major return code of 04 indicates that an output exception occurred. Specifically, your program attempted to send data when data should have been
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received. This is probably the result of not handling the minor return code
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properly on the previous successful completion. Your program can recover
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by just receiving the incoming data and then repeating the write operation.</p>
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<p>A major return code of 34 indicates that an input exception occurred. The
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received data was either too long or incompatible with the record format. The minor return code indicates what was wrong with the received data, and
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whether the data was truncated or rejected. Your program can probably handle
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the exception and continue. If the data was rejected, you might be able to
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read it by specifying a different record format.</p>
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<p>Two other return codes in this group, 0800 and 1100, are both typically
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the result of application programming errors, but are still recoverable. 0800
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indicates that an acquire operation failed because the device has already
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been acquired or the session has already been established. 1100 indicates
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that the program attempted to read from invited devices with no devices invited. In both cases, the program ignored the request that is not valid, and the
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program can continue.</p>
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<p>No message is issued with a 02 major code or most minor codes with the
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03 major code, but the other exceptions in this group are typically accompanied
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by a message in the CPF4701-CPF47FF or CPF5001-CPF50FF range.</p>
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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="rbal3recoveryerr.htm" title="This section describes the errors you might receive and the actions you should take to recover from those errors.">Recover from file server errors</a></div>
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