1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>splice_from_pipe_feed</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Filesystems API"><link rel="up" href="splice.html" title="Chapter&#160;7.&#160;splice API"><link rel="prev" href="API-generic-file-splice-read.html" title="generic_file_splice_read"><link rel="next" href="API-splice-from-pipe-next.html" title="splice_from_pipe_next"></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">splice_from_pipe_feed</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-generic-file-splice-read.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;7.&#160;splice API</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-splice-from-pipe-next.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-splice-from-pipe-feed"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>splice_from_pipe_feed &#8212; 
2     feed available data from a pipe to a file
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">splice_from_pipe_feed </b>(</code></td><td>struct pipe_inode_info * <var class="pdparam">pipe</var>, </td></tr><tr><td>&#160;</td><td>struct splice_desc * <var class="pdparam">sd</var>, </td></tr><tr><td>&#160;</td><td>splice_actor * <var class="pdparam">actor</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1104005628"></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     pipe to splice from
5    </p></dd><dt><span class="term"><em class="parameter"><code>sd</code></em></span></dt><dd><p>
6     information to <em class="parameter"><code>actor</code></em>
7    </p></dd><dt><span class="term"><em class="parameter"><code>actor</code></em></span></dt><dd><p>
8     handler that splices the data
9    </p></dd></dl></div></div><div class="refsect1"><a name="idp1104009620"></a><h2>Description</h2><p>
10   This function loops over the pipe and calls <em class="parameter"><code>actor</code></em> to do the
11   actual moving of a single struct pipe_buffer to the desired
12   destination.  It returns when there's no more buffers left in
13   the pipe or if the requested number of bytes (<em class="parameter"><code>sd</code></em>-&gt;total_len)
14   have been copied.  It returns a positive number (one) if the
15   pipe needs to be filled with more data, zero if the required
16   number of bytes have been copied and -errno on error.
17   </p><p>
18
19   This, together with splice_from_pipe_{begin,end,next}, may be
20   used to implement the functionality of <code class="function">__splice_from_pipe</code> when
21   locking is required around copying the pipe buffers to the
22   destination.
23</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-generic-file-splice-read.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="splice.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-splice-from-pipe-next.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">generic_file_splice_read</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;<span class="phrase">splice_from_pipe_next</span></td></tr></table></div></body></html>
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