111 lines
4.6 KiB
HTML
111 lines
4.6 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE html
|
|
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html lang="en-us" xml:lang="en-us">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<meta name="security" content="public" />
|
|
<meta name="Robots" content="index,follow" />
|
|
<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))' />
|
|
<meta name="DC.Type" content="reference" />
|
|
<meta name="DC.Title" content="Example: Set a thread attribute in a Pthread program" />
|
|
<meta name="abstract" content="This example shows how to set the "detach state" thread attribute in a Pthread program." />
|
|
<meta name="description" content="This example shows how to set the "detach state" thread attribute in a Pthread program." />
|
|
<meta name="DC.Relation" scheme="URI" content="rzahwattco.htm" />
|
|
<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
|
|
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
|
|
<meta name="DC.Format" content="XHTML" />
|
|
<meta name="DC.Identifier" content="rzahwe11-e11rx" />
|
|
<meta name="DC.Language" content="en-us" />
|
|
<!-- All rights reserved. Licensed Materials Property of IBM -->
|
|
<!-- US Government Users Restricted Rights -->
|
|
<!-- Use, duplication or disclosure restricted by -->
|
|
<!-- GSA ADP Schedule Contract with IBM Corp. -->
|
|
<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
|
|
<link rel="stylesheet" type="text/css" href="./ic.css" />
|
|
<title>Example: Set a thread attribute in a Pthread program</title>
|
|
</head>
|
|
<body id="rzahwe11-e11rx"><a name="rzahwe11-e11rx"><!-- --></a>
|
|
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
|
|
<h1 class="topictitle1">Example: Set a thread attribute in a Pthread program</h1>
|
|
<div><p>This example shows how to set the "detach state" thread attribute
|
|
in a Pthread program.</p>
|
|
<div class="section"><div class="note"><span class="notetitle">Note:</span> By using the code examples, you agree to the terms of the <a href="codedisclaimer.htm">Code license and disclaimer information</a>.</div>
|
|
</div>
|
|
<div class="section"><div class="p"> <pre>/*
|
|
Filename: ATEST10.QCSRC
|
|
The output of this example is as follows:
|
|
Enter Testcase - LIBRARY/ATEST10
|
|
Create a default thread attributes object
|
|
Set the detach state thread attribute
|
|
Create a thread using the new attributes
|
|
Destroy thread attributes object
|
|
Join now fails because the detach state attribute was changed
|
|
Entered the thread
|
|
Main completed
|
|
*/
|
|
#define _MULTI_THREADED
|
|
#include <pthread.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#define checkResults(string, val) { \
|
|
if (val) { \
|
|
printf("Failed with %d at %s", val, string); \
|
|
exit(1); \
|
|
} \
|
|
}
|
|
|
|
void *theThread(void *parm)
|
|
{
|
|
printf("Entered the thread\n");
|
|
return NULL;
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
pthread_attr_t attr;
|
|
pthread_t thread;
|
|
int rc=0;
|
|
|
|
printf("Enter Testcase - %s\n", argv[0]);
|
|
|
|
printf("Create a default thread attributes object\n");
|
|
rc = pthread_attr_init(&attr);
|
|
checkResults("pthread_attr_init()\n", rc);
|
|
|
|
printf("Set the detach state thread attribute\n");
|
|
rc = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
|
|
checkResults("pthread_attr_setdetachstate()\n", rc);
|
|
|
|
printf("Create a thread using the new attributes\n");
|
|
rc = pthread_create(&thread, &attr, theThread, NULL);
|
|
checkResults("pthread_create()\n", rc);
|
|
|
|
printf("Destroy thread attributes object\n");
|
|
rc = pthread_attr_destroy(&attr);
|
|
checkResults("pthread_attr_destroy()\n", rc);
|
|
|
|
printf("Join now fails because the detach state attribute was changed\n");
|
|
rc = pthread_join(thread, NULL);
|
|
if (rc==0) {
|
|
printf("Unexpected results from pthread_join()\n");
|
|
exit(1);
|
|
}
|
|
sleep(2);
|
|
|
|
printf("Main completed\n");
|
|
return 0;
|
|
}
|
|
</pre>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div>
|
|
<div class="familylinks">
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzahwattco.htm" title="Thread attributes are thread characteristics that affect the behavior of the thread. Different attributes are available depending on the programming language and API set that you are using.">Thread attributes</a></div>
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html> |