136 lines
7.4 KiB
HTML
136 lines
7.4 KiB
HTML
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<?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 http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Example in ILE C: Data queue" />
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<meta name="abstract" content="This program illustrates how to use APIs to create and manipulate a data queue." />
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<meta name="description" content="This program illustrates how to use APIs to create and manipulate a data queue." />
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<meta name="DC.Relation" scheme="URI" content="ExTaskDataque.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="exdqilec" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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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>Example in ILE C: Data queue</title>
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</head>
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<body id="exdqilec"><a name="exdqilec"><!-- --></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">Example in ILE C: Data queue</h1>
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<div><p>This program illustrates how to use APIs to create and manipulate
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a data queue.</p>
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<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
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legal information.</div>
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<pre>/*********************************************************************/
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/* */
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/*Program Name: DQUEUEX */
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/* */
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/*Program Language: ILE C */
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/* */
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/*Description: This program illustrates how to use APIs to create */
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/* and manipulate a data queue. */
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/* */
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/* */
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/*Header Files Included: <stdio.h> */
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/* <string.h> */
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/* <stdlib.h> */
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/* <decimal.h> */
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/* <qrcvdtaq.h> */
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/* <qsnddtaq.h> */
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/* */
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/*APIs Used: QSNDDTAQ - Send data queue */
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/* QRCVDTAQ - Receive data queue */
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/* */
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/*********************************************************************/
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/*********************************************************************/
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/*********************************************************************/
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/* Includes */
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/*********************************************************************/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <decimal.h>
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#include <qsnddtaq.h> /* from QSYSINC/h */
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#include <qrcvdtaq.h> /* from QSYSINC/h */
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/*********************************************************************/
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/* */
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/* Main */
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/* */
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/*********************************************************************/
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void main()
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{
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decimal(5,0) DataLength = 10.0d,
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WaitTime = 0.0d;
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char QueueData[10];
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/*******************************************************************/
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/* Create library QUEUELIB. */
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/*******************************************************************/
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system("CRTLIB LIB(QUEUELIB)");
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/*******************************************************************/
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/* Create a data queue called EXAMPLEQ in library QUEUELIB. The */
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/* queue will have a maximum entry length set at 10, and will be */
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/* FIFO (first-in first-out). */
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/*******************************************************************/
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system("CRTDTAQ DTAQ(QUEUELIB/EXAMPLEQ) MAXLEN(10)");
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/*******************************************************************/
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/* Send information to the data queue. */
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/*******************************************************************/
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QSNDDTAQ("EXAMPLEQ ", /* Data queue name */
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"QUEUELIB ", /* Queue library name */
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DataLength, /* Length of queue entry */
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"EXAMPLE "); /* Data sent to queue */
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/*******************************************************************/
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/* Receive information from the data queue. */
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/*******************************************************************/
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QRCVDTAQ("EXAMPLEQ ", /* Data queue name */
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"QUEUELIB ", /* Queue library name */
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&DataLength, /* Length of queue entry */
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&QueueData, /* Data received from queue */
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WaitTime); /* Wait time */
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printf("Queue entry information: %.10s\n", QueueData);
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/*******************************************************************/
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/* Delete the data queue. */
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/*******************************************************************/
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system("DLTDTAQ DTAQ(QUEUELIB/EXAMPLEQ)");
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/*******************************************************************/
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/* Delete the library. */
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/*******************************************************************/
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system("DLTLIB LIB(QUEUELIB)");
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}</pre>
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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="ExTaskDataque.htm" title="Data queues and user queues both provide a means for one or more processes to communicate asynchronously. The queues can be processed FIFO (first-in first-out), LIFO (last-in first-out), or by key.">Examples: Using data queues or user queues</a></div>
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</div>
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</div>
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</body>
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</html>
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