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

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<title>clnt_freeres()--Free Data Allocated by the RPC or XDR System</title>
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<h2>clnt_freeres()--Free Data Allocated by the RPC or XDR System</h2>
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<br>
&nbsp;&nbsp;Syntax<br>
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<pre>
#include &lt;rpc/rpc.h&gt;
bool_t clnt_freeres(CLIENT *<em>clnt</em>,
const xdrproc_t <em>inproc</em>,
caddr_t <em>in</em>);
</pre>
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&nbsp;&nbsp;Service Program Name: QZNFTRPC<br>
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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 <strong>clnt_freeres()</strong> function frees any data allocated by the
RPC or XDR system when it decoded the results of an RPC call.</p>
<br>
<h3>Parameters</h3>
<dl>
<dt><strong>clnt</strong> &nbsp;(Input)&nbsp;</dt>
<dd>A pointer to the client handle.<br>
<br>
</dd>
<dt><strong>inproc</strong> &nbsp;(Input)&nbsp;</dt>
<dd>XDR routine describing the results.<br>
<br>
</dd>
<dt><strong>in</strong> &nbsp;(Input)&nbsp;</dt>
<dd>(Input) The address of the results.</dd>
</dl>
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<h3>Authorities</h3>
<p>No authorization is required.</p>
<br>
<h3>Return Value</h3>
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<td align="left" valign="top"><em>TRUE (1)</em></td>
<td align="left" valign="top">Successful</td>
</tr>
<tr>
<td align="left" valign="top"><em>FALSE (0)</em></td>
<td align="left" valign="top">Unsuccessful</td>
</tr>
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<br>
<h3>Error Conditions</h3>
<p>This function returns FALSE when the <em>in</em> parameter is NULL or an
exception has occurred. In case of an exception,
<strong>clnt_freeres()</strong> tries to set RPC_INTR in the client handle.
This status can be retrieved by a call to <strong>clnt_geterr()</strong>.</p>
<br>
<h3>Error Messages</h3>
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<th align="left" valign="top">Message ID</th>
<th align="left" valign="top">Error Message Text</th>
</tr>
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<td width="15%" valign="top">CPF9872 E</td>
<td width="85%" valign="top">Program or service program &amp;1 in library
&amp;2 ended. Reason code &amp;3.</td>
</tr>
</table>
<br>
<br>
<h3>Example</h3>
<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
for information pertaining to code examples.</p>
<p>The following example shows how <strong>clnt_freeres()</strong> is used:</p>
<pre>
#include &lt;stdio.h&gt;
#include &lt;rpc/rpc.h&gt;
...
u_long procnum;
CLIENT *clnt;
enum clnt_stat stat;
struct rpc_err client_error;
struct timeval timeout;
struct array_args{
unsigned int size;
char *data;
};
struct array_args args; /* Arg with buffer to send */
struct array_args result; /* Arg with buffer to receive */
...
/* Call the remote procedure that is associated with client */
...
stat = <strong>clnt_call</strong>(clnt, procnum, (xdrproc_t)xdr_array,
(char *)&amp;args, (xdrproc_t)xdr_array,
(char *)&amp;result, timeout);
if (stat != RPC_SUCCESS){
/* Failure on call */
if (result.data != (char *) NULL){
if(!<strong>clnt_freeres</strong>(clnt, (xdrproc_t)xdr_array,
(char *)&amp;result))
/* <strong>clnt_freeres()</strong> failed */
...
}
...
}
</pre>
<br>
<hr>
API introduced: V4R2
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