1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>rpc_queue_upcall</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Networking and Network Devices APIs"><link rel="up" href="ch01s05.html" title="SUN RPC subsystem"><link rel="prev" href="API-rpc-count-iostats.html" title="rpc_count_iostats"><link rel="next" href="API-rpc-mkpipe-dentry.html" title="rpc_mkpipe_dentry"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">rpc_queue_upcall</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-rpc-count-iostats.html">Prev</a>&#160;</td><th width="60%" align="center">SUN RPC subsystem</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-rpc-mkpipe-dentry.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-rpc-queue-upcall"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>rpc_queue_upcall &#8212; 
2  queue an upcall message to userspace
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">rpc_queue_upcall </b>(</code></td><td>struct rpc_pipe * <var class="pdparam">pipe</var>, </td></tr><tr><td>&#160;</td><td>struct rpc_pipe_msg * <var class="pdparam">msg</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1097307684"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>pipe</code></em></span></dt><dd><p>
4     upcall pipe on which to queue given message
5    </p></dd><dt><span class="term"><em class="parameter"><code>msg</code></em></span></dt><dd><p>
6     message to queue
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1097310324"></a><h2>Description</h2><p>
8   Call with an <em class="parameter"><code>inode</code></em> created by <code class="function">rpc_mkpipe</code> to queue an upcall.
9   A userspace process may then later read the upcall by performing a
10   read on an open file for this inode.  It is up to the caller to
11   initialize the fields of <em class="parameter"><code>msg</code></em> (other than <em class="parameter"><code>msg</code></em>-&gt;list) appropriately.
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