ibm-information-center/dist/eclipse/plugins/i5OS.ic.apis_5.4.0.1/qoldlink.htm

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<title>Disable Link (QOLDLINK) API</title>
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<h2>Disable Link (QOLDLINK) API</h2>
<div class="box" style="width: 60%;">
<br>
&nbsp;&nbsp;Required Parameter Group:<br>
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<tr>
<td align="center" valign="top" width="10%">1</td>
<td align="left" valign="top" width="50%">Return code</td>
<td align="left" valign="top" width="20%">Output</td>
<td align="left" valign="top" width="20%">Binary(4)</td>
</tr>
<tr>
<td align="center" valign="top">2</td>
<td align="left" valign="top">Reason code</td>
<td align="left" valign="top">Output</td>
<td align="left" valign="top">Binary(4)</td>
</tr>
<tr>
<td align="center" valign="top">3</td>
<td align="left" valign="top">Communications handle</td>
<td align="left" valign="top">Input</td>
<td align="left" valign="top">Char(10)</td>
</tr>
<tr>
<td align="center" valign="top">4</td>
<td align="left" valign="top">Vary option</td>
<td align="left" valign="top">Input</td>
<td align="left" valign="top">Char(1)</td>
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&nbsp;&nbsp;Default Public Authority: *USE<br>
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&nbsp;&nbsp;Threadsafe: No<br>
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<p>The Disable Link (QOLDLINK) API disables one or all links that are currently
enabled in the job in which the application program is running. When a link is
disabled, all system resources that the link is using are released, the input
and output buffers and descriptors for that link are deleted, and input or
output on that link is no longer possible.</p>
<p>In addition to an application program explicitly disabling a link by calling
the QOLDLINK API, user-defined communications support will implicitly disable a
link in the following cases:</p>
<ul>
<li>When the network device associated with an enabled link is varied off from
the job in which it was enabled<br>
<br>
</li>
<li>When a job ends in which one or more links were enabled<br>
<br>
</li>
<li>When the application program that enabled the link ends abnormally<br>
<br>
</li>
<li>When the Reclaim Resource (RCLRSC) command is used<br>
<br>
</li>
<li>When an unmonitored escape message is received</li>
</ul>
<p>For each link that is successfully disabled, either explicitly or
implicitly, the disable-complete entry will be sent to the data queue or user
queue specified on the call to the QOLELINK API when the link was enabled. See
<a href="comm3.htm#HDRDCPLTEN">Disable-Complete Entry</a> for the format of the
disable-complete entry.</p>
<br>
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<h3>Authorities and Locks</h3>
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<p>None.</p>
<br>
<h3><a name="Header_4">Required Parameter Group</a></h3>
<dl>
<dt><strong>Return code</strong></dt>
<dd>OUTPUT; BINARY(4)
<p>The recovery action to take. See <a href="#HDRDLINKRR">Return and Reason
Codes</a>.</p>
</dd>
<dt><strong>Reason code</strong></dt>
<dd>OUTPUT; BINARY(4)
<p>The error that occurred. See <a href="#HDRDLINKRR">Return and Reason
Codes</a>.</p>
</dd>
<dt><strong>Communications handle</strong></dt>
<dd>INPUT; CHAR(10)
<p>The name of the link to disable. The special value of *ALL (left-justified
and padded on the right with spaces) may be used to disable all links currently
enabled in the job that the application program is running in.</p>
</dd>
<dt><strong>Vary option</strong></dt>
<dd>INPUT; CHAR(1)
<p>The vary option for the network device description associated with each link
being disabled. The valid values are as follows:</p>
<table cellpadding="3">
<tr>
<td align="left" valign="top"><em>X'00'</em></td>
<td valign="top">Do not vary off the network device description.</td>
</tr>
<tr>
<td align="left" valign="top"><em>X'01'</em></td>
<td valign="top">Vary off the network device description.</td>
</tr>
</table>
</dd>
</dl>
<br>
<h3><a name="HDRDLINKRR">Return and Reason Codes</a></h3>
<p><strong><a name="TBLRR4">Return and Reason Codes for the QOLDLINK
API</a></strong></p>
<table border width="80%">
<tr>
<th valign="top">Return / Reason Code</th>
<th valign="top">Meaning</th>
<th valign="top">Recovery</th>
</tr>
<tr>
<td align="center" valign="top" width="30%">0/0</td>
<td align="left" valign="top" width="30%">Operation successful.</td>
<td align="left" valign="top" width="40%">Continue processing.</td>
</tr>
<tr>
<td align="center" valign="top" width="30%">83/1004</td>
<td align="left" valign="top" width="30%">Vary option not valid.</td>
<td align="left" valign="top" width="40%">Correct the vary option parameter.
Then, try the request again.</td>
</tr>
<tr>
<td align="center" valign="top" width="30%">83/3001</td>
<td align="left" valign="top" width="30%">Link not enabled.</td>
<td align="left" valign="top" width="40%">Correct the communications handle
parameter. Then, try the request again.</td>
</tr>
</table>
<br>
<hr>
API introduced: V2R1
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