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| author | Martin Lucina <martin@lucina.net> | 2012-01-23 08:53:19 +0100 |
|---|---|---|
| committer | Martin Lucina <martin@lucina.net> | 2012-01-23 08:53:19 +0100 |
| commit | a15854bd92db69fcd0b4444fe1b8fe3610a7acf6 (patch) | |
| tree | 1214b945d0f0033ff318de367c70525ea141ef56 /doc/zmq_msg_copy.html | |
Imported Upstream version 2.0.7.dfsgupstream/2.0.7.dfsg
Diffstat (limited to 'doc/zmq_msg_copy.html')
| -rw-r--r-- | doc/zmq_msg_copy.html | 646 |
1 files changed, 646 insertions, 0 deletions
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+<div id="header">
+<h1>
+zmq_msg_copy(3) Manual Page
+</h1>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>zmq_msg_copy -
+ copy content of a message to another message
+</p>
+</div>
+</div>
+<div id="content">
+<h2 id="_synopsis">SYNOPSIS</h2>
+<div class="sectionbody">
+<div class="paragraph"><p><strong>int zmq_msg_copy (zmq_msg_t <em>*dest</em>, zmq_msg_t <em>*src</em>);</strong></p></div>
+</div>
+<h2 id="_description">DESCRIPTION</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>The <em>zmq_msg_copy()</em> function shall copy the message object referenced by <em>src</em>
+to the message object referenced by <em>dest</em>. The original content of <em>dest</em>, if
+any, shall be released.</p></div>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<div class="title">Caution</div>
+</td>
+<td class="content">The implementation may choose not to physically copy the message
+content, rather to share the underlying buffer between <em>src</em> and <em>dest</em>. Avoid
+modifying message content after a message has been copied with
+<em>zmq_msg_copy()</em>, doing so can result in undefined behaviour. If what you need
+is an actual hard copy, allocate a new message using <em>zmq_msg_init_size()</em> and
+copy the message content using <em>memcpy()</em>.</td>
+</tr></table>
+</div>
+<div class="admonitionblock">
+<table><tr>
+<td class="icon">
+<div class="title">Caution</div>
+</td>
+<td class="content">Never access <em>zmq_msg_t</em> members directly, instead always use the
+<em>zmq_msg</em> family of functions.</td>
+</tr></table>
+</div>
+</div>
+<h2 id="_return_value">RETURN VALUE</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>The <em>zmq_msg_copy()</em> function shall return zero if successful. Otherwise it
+shall return <tt>-1</tt> and set <em>errno</em> to one of the values defined below.</p></div>
+</div>
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>No errors are defined.</p></div>
+</div>
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph"><p><a href="zmq_msg_move.html">zmq_msg_move(3)</a>
+<a href="zmq_msg_init.html">zmq_msg_init(3)</a>
+<a href="zmq_msg_init_size.html">zmq_msg_init_size(3)</a>
+<a href="zmq_msg_init_data.html">zmq_msg_init_data(3)</a>
+<a href="zmq_msg_close.html">zmq_msg_close(3)</a>
+<a href="zmq.html">zmq(7)</a></p></div>
+</div>
+<h2 id="_authors">AUTHORS</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>The ØMQ documentation was written by Martin Sustrik <<a href="mailto:sustrik@250bpm.com">sustrik@250bpm.com</a>> and
+Martin Lucina <<a href="mailto:mato@kotelna.sk">mato@kotelna.sk</a>>.</p></div>
+</div>
+</div>
+<div id="footnotes"><hr /></div>
+<div id="footer">
+<div id="footer-text">
+Last updated 2010-03-10 12:15:08 CEST
+</div>
+</div>
+</body>
+</html>
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