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<h1 class="topictitle1">Example in ILE C: Accessing the HOLD attribute</h1>
<div><p>This example shows how to print messages to spool
files.</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: Accessing the HOLD
attribute for the original example.</p>
<pre>/***********************************************************************/
/***********************************************************************/
/* */
/*Program Name: JOBDAPI */
/* */
/*Programming Language: ILE C */
/* */
/*Description: This example shows how to print messages */
/* to spool files. */
/* */
/*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; /* Error Code Parameter Include for the APIs */
#include &lt;qwdrjobd.h&gt; /* Retrieve Job Description API Include */
#include &lt;qliept.h&gt; /* Entry Point Table Include */
/***********************************************************************/
/* 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[25];
char message_string[29];
FILE *stream;
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 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;
/*********************************************************************/
/* Open QPRINT file so that data can be written to it. If the file */
/* cannot be opened, print a message and exit. */
/*********************************************************************/
if((stream = fopen("QPRINT", "wb")) == NULL)
{
printf("File could not be opened\n");
exit(1);
}
/*********************************************************************/
/* 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, print the error message to the QPRINT */
/* spool file. */
/*********************************************************************/
if(error_code.ec_fields.Bytes_Available &gt; 0)
{
memcpy(message_id, error_code.ec_fields.Exception_Id, 7);
sprintf(message_string,
"Failed. Error ID - %.7s",
message_id);
fprintf(stream, message_string);
}
/*********************************************************************/
/* Let's tell everyone what the hold value was for this job. */
/* The result will be printed in the QPRINT spool file. */
/*********************************************************************/
else
{
memcpy(hold_value, ((Qwd_JOBD0100_t *)rec_var)-&gt;Hold_Job_Queue, 10);
sprintf(command_string,
"HOLD value - %.10s",
hold_value);
fprintf(stream, command_string);
}
fclose(stream);
} /* 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="cmnAccessRPG.htm" title="The following program prints out the name of the job description or prints an error if the API could not find the job description name specified.">Example in OPM RPG: Accessing the HOLD attribute</a></div>
</div>
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