109 lines
4.8 KiB
HTML
109 lines
4.8 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: Worker jobs for multiple accept()" />
|
|
<meta name="abstract" content="This example shows how multiple accept() APIs receive the worker jobs and call the accept() server." />
|
|
<meta name="description" content="This example shows how multiple accept() APIs receive the worker jobs and call the accept() server." />
|
|
<meta name="DC.Relation" scheme="URI" content="xmultiaccept.htm" />
|
|
<meta name="copyright" content="(C) Copyright IBM Corporation 2001, 2006" />
|
|
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2001, 2006" />
|
|
<meta name="DC.Format" content="XHTML" />
|
|
<meta name="DC.Identifier" content="xmultiworker" />
|
|
<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: Worker jobs for multiple accept()</title>
|
|
</head>
|
|
<body id="xmultiworker"><a name="xmultiworker"><!-- --></a>
|
|
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
|
|
<h1 class="topictitle1"> Example: Worker jobs for multiple <span class="apiname">accept()</span></h1>
|
|
<div><p>This example shows how multiple <span class="apiname">accept()</span> APIs
|
|
receive the worker jobs and call the <span class="apiname">accept()</span> server.</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>
|
|
<pre>/**************************************************************************/
|
|
/* Worker job uses multiple accept() to handle incoming client connections*/
|
|
/**************************************************************************/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <sys/socket.h>
|
|
|
|
main (int argc, char *argv[])
|
|
{
|
|
int rc, len;
|
|
int listen_sd, accept_sd;
|
|
char buffer[80];
|
|
|
|
/*************************************************/
|
|
/* The listen socket descriptor is passed to */
|
|
/* this worker job as a command line parameter */
|
|
/*************************************************/
|
|
listen_sd = 0;
|
|
|
|
/*************************************************/
|
|
/* Wait for an incoming connection */
|
|
/*************************************************/
|
|
printf("Waiting on accept()\n");
|
|
accept_sd = accept(listen_sd, NULL, NULL);
|
|
if (accept_sd < 0)
|
|
{
|
|
perror("accept() failed");
|
|
close(listen_sd);
|
|
exit(-1);
|
|
}
|
|
printf("Accept completed successfully\n");
|
|
|
|
/*************************************************/
|
|
/* Receive a message from the client */
|
|
/*************************************************/
|
|
printf("Wait for client to send us a message\n");
|
|
rc = recv(accept_sd, buffer, sizeof(buffer), 0);
|
|
if (rc <= 0)
|
|
{
|
|
perror("recv() failed");
|
|
close(listen_sd);
|
|
close(accept_sd);
|
|
exit(-1);
|
|
}
|
|
printf("<%s>\n", buffer);
|
|
|
|
/*************************************************/
|
|
/* Echo the data back to the client */
|
|
/*************************************************/
|
|
printf("Echo it back\n");
|
|
len = rc;
|
|
rc = send(accept_sd, buffer, len, 0);
|
|
if (rc <= 0)
|
|
{
|
|
perror("send() failed");
|
|
close(listen_sd);
|
|
close(accept_sd);
|
|
exit(-1);
|
|
}
|
|
|
|
/*************************************************/
|
|
/* Close down the descriptors */
|
|
/*************************************************/
|
|
close(listen_sd);
|
|
close(accept_sd);
|
|
}</pre>
|
|
</div>
|
|
</div>
|
|
<div>
|
|
<div class="familylinks">
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="xmultiaccept.htm" title="These examples show how to design a server program that uses the multiple accept() model for handling incoming connection requests.">Examples: Use multiple accept() APIs to handle incoming requests</a></div>
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html> |