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<h1 class="topictitle1">Example in ILE C: Retrieving the HOLD parameter (error code structure)</h1>
<div><p>This example shows how to make use of an error returned
in the error code structure.</p>
<div class="section"><div class="note"><span class="notetitle">Note:</span> Read the <a href="codedisclaimer.htm">Code license and disclaimer information</a> for important
legal information.</div>
<p>Refer to Example in OPM RPG: Retrieving the HOLD
parameter (error code structure) for the original example.</p>
<pre>/***********************************************************************/
/***********************************************************************/
/* */
/*Program Name: JOBDAPI */
/* */
/*Programming Language: ILE C */
/* */
/*Description: This example shows how to make use of an */
/* error returned in the error code structure. */
/* */
/*Header Files Included: STDIO - Standard Input/Output */
/* STRING - String Functions */
/* QUSEC - Error Code Parameter */
/* QWDRJOBD - Retrieve Job Description API */
/* QLIEPT - Entry Point Table */
/* */
/***********************************************************************/
/***********************************************************************/
#include &lt;stdio.h&gt;
#include &lt;string.h&gt;
#include &lt;qusec.h&gt; <span class="uicontrol">(1)</span> /* Error Code Parameter Include for the API */
#include &lt;qwdrjobd.h&gt; /* Retrieve Job Description API Include */
#include &lt;qliept.h&gt;
/***********************************************************************/
/* Error Code Structure */
/* */
/* This shows how the user can define the variable length portion of */
/* error code for the exception data. */
/* */
/***********************************************************************/
typedef struct {
Qus_EC_t ec_fields;
char Exception_Data[100];
} error_code_t;
main(int argc, char *argv[])
{
error_code_t error_code;
char qual_job_desc[20];
char *qual_job_ptr = qual_job_desc;
char rec_var[390];
char hold_value[10];
char message_id[7];
char command_string[53];
char message_string[67];
memset(hold_value, ' ', 10);
/*********************************************************************/
/* Make sure we received the correct number of parameters. The argc */
/* parameter will contain the number of parameters that was passed */
/* to this program. This number also includes the program itself, */
/* so we need to evaluate argc-1. */
/*********************************************************************/
if (((argc - 1) &lt; 2) || ((argc - 1 &gt; 2)))
/*********************************************************************/
/* We did not receive all of the required parameters so exit the */
/* program. */
/*********************************************************************/
{
exit(1);
}
/*********************************************************************/
/* Move the two parameter passed in into qual_job_desc. */
/*********************************************************************/
memcpy(qual_job_ptr, argv[1], 10);
qual_job_ptr += 10;
memcpy(qual_job_ptr, argv[2], 10);
/*********************************************************************/
/* Set the error code parameter to 16. */
/*********************************************************************/
error_code.ec_fields.Bytes_Provided = 16; <span class="uicontrol">(3)</span>
/*********************************************************************/
/* Call the QWDRJOBD API. */
/*********************************************************************/
QWDRJOBD(rec_var, /* Receiver Variable */
390, /* Receiver Length */
"JOBD0100", /* Format Name */
qual_job_desc, /* Qualified Job Description */
&amp;error_code); /* Error Code */
/*********************************************************************/
/* If an error was returned, send an error message. */
/*********************************************************************/
if(error_code.ec_fields.Bytes_Available &gt; 0) <span class="uicontrol">(2)</span>
{
memcpy(message_id, error_code.ec_fields.Exception_Id, 7);
sprintf(message_string,
"SNDMSG MSG('Program failed with message ID %.7s') TOUSR(QPGMR)",
message_id);
system(message_string);
}
/*********************************************************************/
/* Let's tell everyone what the hold value was for this job. */
/*********************************************************************/
else
{
memcpy(hold_value, ((Qwd_JOBD0100_t *)rec_var)-&gt;Hold_Job_Queue, 10);
sprintf(command_string,
"SNDMSG MSG('HOLD value is %.10s') TOUSR(QPGMR)",
hold_value);
system(command_string);
}
} /* main */</pre>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="opmScenario.htm" title="This scenario demonstrates the use of an original program model (OPM) API in several different programs.">Scenario: Original Program Model (OPM) API</a></div>
</div>
<div class="relref"><strong>Related reference</strong><br />
<div><a href="cmnRetrieveRPG.htm" title="This sample program shows exceptions being returned in the error code parameter.">Example in OPM RPG: Retrieving the HOLD parameter (error code structure)</a></div>
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