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<div class="titlepage"><div><div><h4 class="title">
<a name="asio.reference.io_service__strand.post"></a><a class="link" href="post.html" title="io_service::strand::post"> io_service::strand::post</a>
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<p>
<a class="indexterm" name="id850612"></a>
Request the strand to invoke the given handler and
return immediately.
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span>
<span class="keyword">typename</span> <a class="link" href="../Handler.html" title="Handlers">Handler</a><span class="special">></span>
<span class="keyword">void</span> <span class="identifier">post</span><span class="special">(</span>
<span class="identifier">Handler</span> <span class="identifier">handler</span><span class="special">);</span>
</pre>
<p>
This function is used to ask the strand to execute the given handler, but
without allowing the strand to call the handler from inside this function.
</p>
<p>
The strand object guarantees that handlers posted or dispatched through
the strand will not be executed concurrently. The strand's guarantee is
in addition to the guarantee provided by the underlying <a class="link" href="../io_service.html" title="io_service"><code class="computeroutput"><span class="identifier">io_service</span></code></a>. The <a class="link" href="../io_service.html" title="io_service"><code class="computeroutput"><span class="identifier">io_service</span></code></a> guarantees that the
handler will only be called in a thread in which the io_service's run member
function is currently being invoked.
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<a name="asio.reference.io_service__strand.post.parameters"></a><h6>
<a name="id850735"></a>
<a class="link" href="post.html#asio.reference.io_service__strand.post.parameters">Parameters</a>
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<dl>
<dt><span class="term">handler</span></dt>
<dd>
<p>
The handler to be called. The strand will make a copy of the handler
object as required. The function signature of the handler must be:
</p>
<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">handler</span><span class="special">();</span>
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<td align="right"><div class="copyright-footer">Copyright © 2003 - 2010 Christopher M. Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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