82 lines
6.1 KiB
HTML
82 lines
6.1 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>Process-Related APIs</title>
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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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<!-- Begin Header Records ========================================= -->
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<!-- NETMG2 SCRIPT A converted by B2H R4.1 (346) (CMS) by HOLTJM at -->
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<!-- RCHVMW2 on 29 Jan 1999 at 10:01:37 -->
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<!-- File Edited December 2001 -->
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<!-- 031112 JETAYLOR replaced API and/or Exit listings with -->
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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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<a name="Top_Of_Page"></a>
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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>Process-Related APIs</h2>
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<p>The process-related APIs perform process-related or other general
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operations. These APIs are C language functions that can be used in ILE C
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programs.</p>
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<p>The process-related APIs are:</p>
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<!-- ***** NOTE ***** Do not manually update text or links in this section. -->
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<!-- Updates made in this section *will* be overlaid by automated tools -->
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<!-- Notify User Technologies of needed updates to be made in XML for API finder.-->
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<!--***************API BEGIN PASTE***************-->
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<ul>
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<li><A HREF="getopt.htm">getopt()</A> (Get flag letters from argument vector) returns the next flag letter in the argv list that matches a letter in optionstring.</li>
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<li><A HREF="getpgrp.htm">getpgrp()</A> (Get process group ID) returns the process group ID of the calling process.</li>
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<li><A HREF="getpid.htm">getpid()</A> (Get process ID) returns the process ID of the calling process.</li>
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<li><A HREF="getppid.htm">getppid()</A> (Get process ID of parent process) returns the parent process ID of the calling process.</li>
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<li><A HREF="getrlim.htm">getrlimit()</A> (Get resource limit) returns the resource limit for the specified<em>resource</em>.</li>
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<li><A HREF="pipe2.htm">pipe()</A> (Create interprocess channel) creates a data pipe and places two file descriptors, one each into the arguments fildes[0] and fildes[1], that refer to the open file descriptions for the read and write ends of the pipe, respectively.</li>
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<li><A HREF="spawnu.htm">QlgSpawn()</A> (Spawn process (using NLS-enabled path name)) creates a child process that inherits specific attributes from the parent.</li>
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<li><A HREF="spawnpu.htm">QlgSpawnp()</A> (Spawn process with path (using NLS-enabled file name)) creates a child process that inherits specific attributes from the parent.</li>
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<li><A HREF="chkchld.htm">Qp0wChkChld()</A> (Check status for child processes) returns the status and process table entry information for the child processes of the specified process ID.</li>
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<li><A HREF="chkpgrp.htm">Qp0wChkPgrp()</A> (Check status for process group) returns the status and process table entry information for the processes that are members of the process group identified by pid in the structure QP0W_PID_Entry_T.</li>
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<li><A HREF="chkpid.htm">Qp0wChkPid()</A> (Check status for process ID) returns the status and process table entry information for the process specified by the process ID pid.</li>
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<li><A HREF="qgtjid.htm">Qp0wGetJobID()</A> (Get qualified job name and ID for process ID) returns the qualified job name and internal job identifier for the process whose process ID matches pid.</li>
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<li><A HREF="qgtpgrp.htm">Qp0wGetPgrp()</A> (Get process group ID) returns the process group ID of the calling process.</li>
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<li><A HREF="qgtpid.htm">Qp0wGetPid()</A> (Get process ID) returns the process ID of the calling process.</li>
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<li><A HREF="qgpidni.htm">Qp0wGetPidNoInit</A> (Get process ID without initializing for signals) returns the process ID of the calling process without enabling the process to receive signals.</li>
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<li><A HREF="qgtppid.htm">Qp0wGetPPid()</A> (Get process ID of parent process) returns the parent process ID of the calling process.</li>
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<li><A HREF="pipe.htm">Qp0zPipe()</A> (Create interprocess channel with sockets) creates a data pipe that can be used by two processes.</li>
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<li><A HREF="system.htm">Qp0zSystem()</A> (Run a CL command) spawns a new process, passes CLcommand to the CL command processor in the new process, and waits for the command to complete.</li>
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<li><A HREF="setpgid.htm">setpgid()</A> (Set process group ID for job control) is used to either join an existing process group or create a new process group within the session of the calling process.</li>
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<li><A HREF="setrlim.htm">setrlimit()</A> (Set resource limit) sets the resource limit for the specified<em>resource</em>.</li>
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<li><A HREF="spawn.htm">spawn()</A> (Spawn process) creates a child process that inherits specific attributes from the parent.</li>
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<li><A HREF="spawnp.htm">spawnp()</A> (Spawn process with path) creates a child process that inherits specific attributes from the parent.</li>
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<li><A HREF="ulimit.htm">ulimit()</A> (Get and set process limits) provides a way to get and set process resource limits.</li>
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<li><A HREF="wait.htm">wait()</A> (Wait for child process to end) suspends processing until a child process has ended.</li>
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<li><A HREF="waitpid.htm">waitpid()</A> (Wait for specific child process) allows the calling thread to obtain status information for one of its child processes.</li>
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</ul>
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<!--***************API END PASTE***************-->
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<p>For additional information, see <a href="shscript.htm">About shell scripts</a>.</p>
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<br>
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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"><a href="#Top_Of_Page">Top</a> | <a href=
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"unix.htm">UNIX-Type APIs</a> | <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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