60 lines
2.5 KiB
HTML
60 lines
2.5 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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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 name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>Spawn API provides more POSIX-like process model</title>
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<!-- Begin Header Records ========================================== -->
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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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<!--File Edited November 2001 -->
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<!--End Header Records -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<!-- Java sync-link -->
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<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<h2>Spawn API provides more POSIX-like process model</h2>
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<p>The iSeries uses a call/return mechanism when your application calls
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programs. A new process is not started when you call a program, instead the
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program runs and returns to its caller. You can use activation groups to
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separate or partition the program resources from the caller.</p>
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<p>For the more POSIX-like behavior of running each program in a separate
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process (and thus taking advantage of thread safety, encapsulation, and
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protection that the new process may give you), use the <strong>spawn</strong>()
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API to start the program.</p>
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<p>You also can use the capability provided in <strong>spawn</strong>() to
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allow the child process to start multiple threads. See the
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<a href="spawn.htm">spawn()</a> API documentation for a description of the
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<strong>SPAWN_SETTHREAD_NP</strong> flag in the inheritance structure.</p>
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<p>A CL command for using <strong>SPAWN</strong> is also available from the
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<strong>QUSRTOOL</strong> library. See <a href="concep32.htm#286283">SPAWN CL
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command, QUSRTOOL example</a> for more information about the <strong>
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SPAWN</strong> CL command.</p>
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center">
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<a href="rzah4mst.htm">Pthread APIs</a> |
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<a href="aplist.htm">APIs by category</a></td>
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</tr>
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</table>
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</center>
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</body>
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</html>
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