355 lines
8.6 KiB
HTML
355 lines
8.6 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
|
|
<title>QsoPostIOCompletion()--Post I/O Completion Request</title>
|
|
<!-- Begin Header Records -->
|
|
<!-- 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. -->
|
|
<!-- Change History: -->
|
|
<!-- YYMMDD USERID Change description -->
|
|
<!-- Created for V5R1 -->
|
|
<!-- Edited by Kersten Feb 02 -->
|
|
<!-- End Header Records -->
|
|
<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
|
|
</head>
|
|
<body>
|
|
<!--Java sync-link-->
|
|
<script type="text/javascript" language="Javascript" src="../rzahg/synch.js">
|
|
</script>
|
|
|
|
<a name="Top_Of_Page"></a>
|
|
|
|
<h2>QsoPostIOCompletion()--Post I/O Completion Request</h2>
|
|
|
|
<div class="box" style="width: 80%;">
|
|
<br>
|
|
Syntax
|
|
|
|
<pre>
|
|
#include <qsoasync.h>
|
|
|
|
int QsoPostIOCompletion
|
|
(int IOCompletionPort, Qso_OverlappedIO_t * communicationsArea)
|
|
|
|
</pre>
|
|
|
|
<br>
|
|
Service Program Name: QSOSRV3<br>
|
|
<!-- iddvc RMBR -->
|
|
<br>
|
|
Default Public Authority: *USE<br>
|
|
<!-- iddvc RMBR -->
|
|
<br>
|
|
Threadsafe: Yes<br>
|
|
<!-- iddvc RMBR -->
|
|
<br>
|
|
</div>
|
|
|
|
<p>The QsoPostIOCompletion function will post an Qso_OverlappedIO_t request on
|
|
a specifed I/O completion port. This allows an application to notify a
|
|
completion port that some function or activity has occurred. The application
|
|
defines what that function or activity is within the Qso_OverlappedIO_t
|
|
request.</p>
|
|
|
|
<br>
|
|
|
|
|
|
<h3>Parameters</h3>
|
|
|
|
<dl>
|
|
<dt><strong>int IOCompletionPort</strong> (Input)</dt>
|
|
|
|
<dd>The I/O completion port that should be posted.<br>
|
|
<br>
|
|
</dd>
|
|
|
|
<dt><strong>Qso_OverlappedIO_t</strong> * communicationsArea
|
|
(Input/Output)</dt>
|
|
|
|
<dd>A pointer to a structure that contains the following information:<br>
|
|
<br>
|
|
|
|
|
|
<table cellpadding="5">
|
|
<!-- cols="25 75" -->
|
|
<tr>
|
|
<td align="left" valign="top"><em>descriptorHandle</em></td>
|
|
<td align="left" valign="top">(Input) - The descriptor handle is
|
|
application-specific and is never used by the system. It is intended to make it
|
|
easier for the application to keep track of information regarding a given
|
|
socket connection.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>buffer</em></td>
|
|
<td align="left" valign="top">(Input) - Supplied value is preserved.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>bufferLength</em></td>
|
|
<td align="left" valign="top">(Input) - Supplied value is preserved.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>postFlag</em></td>
|
|
<td align="left" valign="top">(Input) - Supplied value is preserved.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>fillBuffer</em></td>
|
|
<td align="left" valign="top">(Input) - Supplied value is preserved.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>returnValue</em></td>
|
|
<td align="left" valign="top">(Output) - This field will be set to 0 if this
|
|
operation completes successfully.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>errnoValue</em></td>
|
|
<td align="left" valign="top">(Output) - This field will be set to 0 if this
|
|
operation completes successfully.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>operationCompleted</em></td>
|
|
<td align="left" valign="top">(Output) - This field is updated to
|
|
QSOPOSTIOCOMPLETION.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">
|
|
<em>secureDataTransferSize</em></td>
|
|
<td align="left" valign="top">Not used.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>bytesAvailable</em></td>
|
|
<td align="left" valign="top">Not used.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>operationWaitTime</em></td>
|
|
<td align="left" valign="top">(Input) - A timeval structure which specifies a
|
|
time to wait before posting this operation asynchronously to the I/O completion
|
|
port with <em>errnoValue</em> set to EAGAIN.
|
|
|
|
<pre>
|
|
struct timeval {
|
|
long tv_sec; /* second */
|
|
long tv_usec; /* microseconds */
|
|
};
|
|
</pre>
|
|
|
|
If this field is set to zero, the operation will be posted immediately.<br>
|
|
<br>
|
|
If <em>postedDescriptor</em> is closed before the timer expires, the operation
|
|
will be posted to the I/O completion port with <em>errnoValue</em> set to
|
|
ECLOSED.<br>
|
|
<br>
|
|
The minimum operationWaitTime is 1 second. The microseconds field (tv_usec) in
|
|
the timeval is not used and must be set to zero.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>postedDescriptor</em></td>
|
|
<td align="left" valign="top">This field is only relevant if a non-zero timeval
|
|
was specified in <em>operationWaitTime</em>. This is the socket descriptor to
|
|
be associated with the timer. If this descriptor is closed before the timer
|
|
expires, the operation will be posted to the I/O completion port with
|
|
<em>errnoValue</em> set to ECLOSED.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>reserved1</em></td>
|
|
<td align="left" valign="top">(Input) - Must be set to hex zeroes.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>reserved2</em></td>
|
|
<td align="left" valign="top">(Input) - Must be set to hex zeroes.</td>
|
|
</tr>
|
|
</table>
|
|
</dd>
|
|
</dl>
|
|
|
|
<br>
|
|
|
|
|
|
<h3>Authorities</h3>
|
|
|
|
<p>No authorization is required.</p>
|
|
|
|
<br>
|
|
<h3>Return Values</h3>
|
|
|
|
<p>QsoPostIOCompletion() returns an integer. Possible values are:</p>
|
|
|
|
<ul>
|
|
<li>-1 - The function did not complete because an error occurred. Inspect the
|
|
<strong>errno</strong> value to determine the cause of the failure.</li>
|
|
|
|
<li>0 - The function has successfully posted the communications area to the I/O
|
|
completion port.</li>
|
|
|
|
<li> 1 - The timer has been
|
|
started. When the timer expires the Qso_OverlappedIO_t communications structure
|
|
will be updated with the results and the I/O completion port will be posted.
|
|
</li>
|
|
</ul>
|
|
|
|
<br>
|
|
|
|
|
|
<h3>Errno Conditions</h3>
|
|
|
|
<p>When QsoPostIOCompletion() fails, errno can be set to one of the
|
|
following:</p>
|
|
|
|
<table cellpadding="5">
|
|
<!-- cols="15 85" -->
|
|
<tr>
|
|
<td align="left" valign="top"><em>[EINVAL]</em></td>
|
|
<td align="left" valign="top">The I/O completion port or a reserved field was
|
|
specified that was not valid or
|
|
operationWaitTime.tv_sec was negative or operationWaitTime.tv_usec was not
|
|
zero. <br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>[EDESTROYED]</em></td>
|
|
<td align="left" valign="top">The I/O completion port has been destroyed.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>[ENOBUFS]</em></td>
|
|
<td align="left" valign="top">There was not enough buffer space for the
|
|
requested operation. Check the maximum allowed storage for the executing user
|
|
profile.<br>
|
|
<br>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top"><em>[ENOMEM]</em></td>
|
|
<td align="left" valign="top">The I/O completion port is full and cannot accept
|
|
any more messages at this time.</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<br>
|
|
<br>
|
|
|
|
|
|
<h3>Error Messages</h3>
|
|
|
|
<table width="100%" cellpadding="5">
|
|
<!-- cols="15 85" -->
|
|
<tr>
|
|
<th align="left" valign="top">Message ID</th>
|
|
<th align="left" valign="top">Error Message Text</th>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td width="15%" valign="top">CPFA081 E</td>
|
|
<td width="85%" valign="top">Unable to set return value or error code.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">CPE3418 E</td>
|
|
<td align="left" valign="top">Possible APAR condition or hardware failure.</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td align="left" valign="top">CPF9872 E</td>
|
|
<td align="left" valign="top">Program or service program &1 in library
|
|
&2 ended. Reason code &3.</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<br>
|
|
<br>
|
|
|
|
|
|
<h3>Related Information</h3>
|
|
|
|
<ul>
|
|
<li><a href="createiocompletionport.htm">QsoCreateIOCompletionPort()</a>--Create
|
|
I/O Completion Port<br>
|
|
<br>
|
|
</li>
|
|
|
|
<li><a href="destroyiocompletionport.htm">QsoDestroyIOCompletionPort()</a>--Destroy
|
|
I/O Completion Port<br>
|
|
<br>
|
|
</li>
|
|
|
|
<li><a href="startrecv.htm">QsoStartRecv</a>--Start Asynchronous Recv
|
|
Operation<br>
|
|
<br>
|
|
</li>
|
|
|
|
<li><a href="startsend.htm">QsoStartSend</a>--Start Asynchronous Send
|
|
Operation<br>
|
|
<br>
|
|
</li>
|
|
|
|
<li><a href="waitforiocompletion.htm">QsoWaitForIOCompletion()</a>--Wait for I/O
|
|
Completion Operation</li>
|
|
</ul>
|
|
|
|
<br>
|
|
|
|
|
|
<hr>
|
|
API introduced: V5R1
|
|
|
|
<hr>
|
|
<center>
|
|
<table cellpadding="2" cellspacing="2">
|
|
<tr align="center">
|
|
<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> |
|
|
<a href="unix.htm">UNIX-Type APIs</a> |
|
|
<a href="aplist.htm">APIs by category</a> </td>
|
|
</tr>
|
|
</table>
|
|
</center>
|
|
</body>
|
|
</html>
|
|
|