Adds asio library and Storage Module
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<title>io_context::strand::~strand</title>
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../asio.png"></td></tr></table>
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<div class="section">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="asio.reference.io_context__strand._strand"></a><a class="link" href="_strand.html" title="io_context::strand::~strand">io_context::strand::~strand</a>
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</h4></div></div></div>
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<p>
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<a class="indexterm" name="asio.indexterm.io_context__strand._strand"></a>
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Destructor.
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</p>
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<pre class="programlisting">~strand();
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</pre>
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<p>
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Destroys a strand.
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</p>
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<p>
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Handlers posted through the strand that have not yet been invoked will
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still be dispatched in a way that meets the guarantee of non-concurrency.
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</p>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
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<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M.
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Kohlhoff<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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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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</p>
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</div></td>
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</tr></table>
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<div class="spirit-nav">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>io_context::strand::context</title>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../asio.png"></td></tr></table>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="../io_context__strand.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="defer.html"><img src="../../../next.png" alt="Next"></a>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="asio.reference.io_context__strand.context"></a><a class="link" href="context.html" title="io_context::strand::context">io_context::strand::context</a>
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</h4></div></div></div>
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<p>
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<a class="indexterm" name="asio.indexterm.io_context__strand.context"></a>
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Obtain
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the underlying execution context.
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</p>
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<pre class="programlisting">asio::io_context & context() const;
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</pre>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
|
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<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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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</p>
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</div></td>
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</tr></table>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="../io_context__strand.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="defer.html"><img src="../../../next.png" alt="Next"></a>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>io_context::strand::defer</title>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../asio.png"></td></tr></table>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="context.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="dispatch.html"><img src="../../../next.png" alt="Next"></a>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="asio.reference.io_context__strand.defer"></a><a class="link" href="defer.html" title="io_context::strand::defer">io_context::strand::defer</a>
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</h4></div></div></div>
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<p>
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<a class="indexterm" name="asio.indexterm.io_context__strand.defer"></a>
|
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Request the
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||||
strand to invoke the given function object.
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</p>
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<pre class="programlisting">template<
|
||||
typename Function,
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||||
typename Allocator>
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void defer(
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||||
Function && f,
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const Allocator & a) const;
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||||
</pre>
|
||||
<p>
|
||||
This function is used to ask the executor to execute the given function
|
||||
object. The function object will never be executed inside this function.
|
||||
Instead, it will be scheduled to run by the underlying <a class="link" href="../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a>.
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</p>
|
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<h6>
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<a name="asio.reference.io_context__strand.defer.h0"></a>
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<span><a name="asio.reference.io_context__strand.defer.parameters"></a></span><a class="link" href="defer.html#asio.reference.io_context__strand.defer.parameters">Parameters</a>
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</h6>
|
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<div class="variablelist">
|
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<p class="title"><b></b></p>
|
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<dl>
|
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<dt><span class="term">f</span></dt>
|
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<dd>
|
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<p>
|
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The function object to be called. The executor will make a copy of
|
||||
the handler object as required. The function signature of the function
|
||||
object must be:
|
||||
</p>
|
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<pre class="programlisting">void function();
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</pre>
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<p>
|
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</p>
|
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</dd>
|
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<dt><span class="term">a</span></dt>
|
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<dd><p>
|
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An allocator that may be used by the executor to allocate the internal
|
||||
storage needed for function invocation.
|
||||
</p></dd>
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</dl>
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</div>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
|
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<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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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</p>
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</div></td>
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</tr></table>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="context.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="dispatch.html"><img src="../../../next.png" alt="Next"></a>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>io_context::strand::dispatch</title>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../asio.png"></td></tr></table>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="defer.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="dispatch/overload1.html"><img src="../../../next.png" alt="Next"></a>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h4 class="title">
|
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<a name="asio.reference.io_context__strand.dispatch"></a><a class="link" href="dispatch.html" title="io_context::strand::dispatch">io_context::strand::dispatch</a>
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</h4></div></div></div>
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<p>
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<a class="indexterm" name="asio.indexterm.io_context__strand.dispatch"></a>
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Request
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the strand to invoke the given function object.
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</p>
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<pre class="programlisting">template<
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typename Function,
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typename Allocator>
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void <a class="link" href="dispatch/overload1.html" title="io_context::strand::dispatch (1 of 2 overloads)">dispatch</a>(
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Function && f,
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const Allocator & a) const;
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<span class="emphasis"><em>» <a class="link" href="dispatch/overload1.html" title="io_context::strand::dispatch (1 of 2 overloads)">more...</a></em></span>
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</pre>
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<p>
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(Deprecated: Use <a class="link" href="../dispatch.html" title="dispatch"><code class="computeroutput">dispatch</code></a>.)
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Request the strand to invoke the given handler.
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</p>
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<pre class="programlisting">template<
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typename <a class="link" href="../LegacyCompletionHandler.html" title="Legacy completion handler requirements">LegacyCompletionHandler</a>>
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<a class="link" href="../asynchronous_operations.html#asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> <a class="link" href="dispatch/overload2.html" title="io_context::strand::dispatch (2 of 2 overloads)">dispatch</a>(
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LegacyCompletionHandler && handler);
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<span class="emphasis"><em>» <a class="link" href="dispatch/overload2.html" title="io_context::strand::dispatch (2 of 2 overloads)">more...</a></em></span>
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</pre>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M.
|
||||
Kohlhoff<p>
|
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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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</p>
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</div></td>
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</tr></table>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="defer.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="dispatch/overload1.html"><img src="../../../next.png" alt="Next"></a>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>io_context::strand::dispatch (1 of 2 overloads)</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
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<link rel="prev" href="../dispatch.html" title="io_context::strand::dispatch">
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<link rel="next" href="overload2.html" title="io_context::strand::dispatch (2 of 2 overloads)">
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../../asio.png"></td></tr></table>
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<hr>
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<div class="spirit-nav">
|
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<a accesskey="p" href="../dispatch.html"><img src="../../../../prev.png" alt="Prev"></a><a accesskey="u" href="../dispatch.html"><img src="../../../../up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../home.png" alt="Home"></a><a accesskey="n" href="overload2.html"><img src="../../../../next.png" alt="Next"></a>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h5 class="title">
|
||||
<a name="asio.reference.io_context__strand.dispatch.overload1"></a><a class="link" href="overload1.html" title="io_context::strand::dispatch (1 of 2 overloads)">io_context::strand::dispatch
|
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(1 of 2 overloads)</a>
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</h5></div></div></div>
|
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<p>
|
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Request the strand to invoke the given function object.
|
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</p>
|
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<pre class="programlisting">template<
|
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typename Function,
|
||||
typename Allocator>
|
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void dispatch(
|
||||
Function && f,
|
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const Allocator & a) const;
|
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</pre>
|
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<p>
|
||||
This function is used to ask the strand to execute the given function
|
||||
object on its underlying <a class="link" href="../../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a>.
|
||||
The function object will be executed inside this function if the strand
|
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is not otherwise busy and if the underlying io_context's executor's
|
||||
<code class="computeroutput">dispatch()</code> function is also able to execute the function
|
||||
before returning.
|
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</p>
|
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<h6>
|
||||
<a name="asio.reference.io_context__strand.dispatch.overload1.h0"></a>
|
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<span><a name="asio.reference.io_context__strand.dispatch.overload1.parameters"></a></span><a class="link" href="overload1.html#asio.reference.io_context__strand.dispatch.overload1.parameters">Parameters</a>
|
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</h6>
|
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<div class="variablelist">
|
||||
<p class="title"><b></b></p>
|
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<dl>
|
||||
<dt><span class="term">f</span></dt>
|
||||
<dd>
|
||||
<p>
|
||||
The function object to be called. The executor will make a copy
|
||||
of the handler object as required. The function signature of the
|
||||
function object must be:
|
||||
</p>
|
||||
<pre class="programlisting">void function();
|
||||
</pre>
|
||||
<p>
|
||||
</p>
|
||||
</dd>
|
||||
<dt><span class="term">a</span></dt>
|
||||
<dd><p>
|
||||
An allocator that may be used by the executor to allocate the internal
|
||||
storage needed for function invocation.
|
||||
</p></dd>
|
||||
</dl>
|
||||
</div>
|
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</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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>)
|
||||
</p>
|
||||
</div></td>
|
||||
</tr></table>
|
||||
<hr>
|
||||
<div class="spirit-nav">
|
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<a accesskey="p" href="../dispatch.html"><img src="../../../../prev.png" alt="Prev"></a><a accesskey="u" href="../dispatch.html"><img src="../../../../up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../home.png" alt="Home"></a><a accesskey="n" href="overload2.html"><img src="../../../../next.png" alt="Next"></a>
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</div>
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</body>
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||||
</html>
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||||
@@ -0,0 +1,85 @@
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<html>
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||||
<head>
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||||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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||||
<title>io_context::strand::dispatch (2 of 2 overloads)</title>
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<link rel="stylesheet" href="../../../../boostbook.css" type="text/css">
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|
||||
(2 of 2 overloads)</a>
|
||||
</h5></div></div></div>
|
||||
<p>
|
||||
(Deprecated: Use <a class="link" href="../../dispatch.html" title="dispatch"><code class="computeroutput">dispatch</code></a>.)
|
||||
Request the strand to invoke the given handler.
|
||||
</p>
|
||||
<pre class="programlisting">template<
|
||||
typename <a class="link" href="../../LegacyCompletionHandler.html" title="Legacy completion handler requirements">LegacyCompletionHandler</a>>
|
||||
<a class="link" href="../../asynchronous_operations.html#asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> dispatch(
|
||||
LegacyCompletionHandler && handler);
|
||||
</pre>
|
||||
<p>
|
||||
This function is used to ask the strand to execute the given handler.
|
||||
</p>
|
||||
<p>
|
||||
The strand object guarantees that handlers posted or dispatched through
|
||||
the strand will not be executed concurrently. The handler may be executed
|
||||
inside this function if the guarantee can be met. If this function is
|
||||
called from within a handler that was posted or dispatched through the
|
||||
same strand, then the new handler will be executed immediately.
|
||||
</p>
|
||||
<p>
|
||||
The strand's guarantee is in addition to the guarantee provided by the
|
||||
underlying <a class="link" href="../../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a>.
|
||||
The <a class="link" href="../../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a>
|
||||
guarantees that the handler will only be called in a thread in which
|
||||
the io_context's run member function is currently being invoked.
|
||||
</p>
|
||||
<h6>
|
||||
<a name="asio.reference.io_context__strand.dispatch.overload2.h0"></a>
|
||||
<span><a name="asio.reference.io_context__strand.dispatch.overload2.parameters"></a></span><a class="link" href="overload2.html#asio.reference.io_context__strand.dispatch.overload2.parameters">Parameters</a>
|
||||
</h6>
|
||||
<div class="variablelist">
|
||||
<p class="title"><b></b></p>
|
||||
<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">void handler();
|
||||
</pre>
|
||||
<p>
|
||||
</p>
|
||||
</dd>
|
||||
</dl>
|
||||
</div>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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>)
|
||||
</p>
|
||||
</div></td>
|
||||
</tr></table>
|
||||
<hr>
|
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|
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|
||||
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|
||||
<a name="asio.reference.io_context__strand.on_work_finished"></a><a class="link" href="on_work_finished.html" title="io_context::strand::on_work_finished">io_context::strand::on_work_finished</a>
|
||||
</h4></div></div></div>
|
||||
<p>
|
||||
<a class="indexterm" name="asio.indexterm.io_context__strand.on_work_finished"></a>
|
||||
Inform
|
||||
the strand that some work is no longer outstanding.
|
||||
</p>
|
||||
<pre class="programlisting">void on_work_finished() const;
|
||||
</pre>
|
||||
<p>
|
||||
The strand delegates this call to its underlying <a class="link" href="../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a>.
|
||||
</p>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
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<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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>)
|
||||
</p>
|
||||
</div></td>
|
||||
</tr></table>
|
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|
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|
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|
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||||
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|
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|
||||
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|
||||
<div class="section">
|
||||
<div class="titlepage"><div><div><h4 class="title">
|
||||
<a name="asio.reference.io_context__strand.on_work_started"></a><a class="link" href="on_work_started.html" title="io_context::strand::on_work_started">io_context::strand::on_work_started</a>
|
||||
</h4></div></div></div>
|
||||
<p>
|
||||
<a class="indexterm" name="asio.indexterm.io_context__strand.on_work_started"></a>
|
||||
Inform
|
||||
the strand that it has some outstanding work to do.
|
||||
</p>
|
||||
<pre class="programlisting">void on_work_started() const;
|
||||
</pre>
|
||||
<p>
|
||||
The strand delegates this call to its underlying <a class="link" href="../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a>.
|
||||
</p>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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>)
|
||||
</p>
|
||||
</div></td>
|
||||
</tr></table>
|
||||
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|
||||
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|
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|
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|
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|
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../asio.png"></td></tr></table>
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<a accesskey="p" href="operator_not__eq_.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="post.html"><img src="../../../next.png" alt="Next"></a>
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|
||||
<div class="section">
|
||||
<div class="titlepage"><div><div><h4 class="title">
|
||||
<a name="asio.reference.io_context__strand.operator_eq__eq_"></a><a class="link" href="operator_eq__eq_.html" title="io_context::strand::operator==">io_context::strand::operator==</a>
|
||||
</h4></div></div></div>
|
||||
<p>
|
||||
<a class="indexterm" name="asio.indexterm.io_context__strand.operator_eq__eq_"></a>
|
||||
Compare
|
||||
two strands for equality.
|
||||
</p>
|
||||
<pre class="programlisting">friend bool operator==(
|
||||
const strand & a,
|
||||
const strand & b);
|
||||
</pre>
|
||||
<p>
|
||||
Two strands are equal if they refer to the same ordered, non-concurrent
|
||||
state.
|
||||
</p>
|
||||
<h6>
|
||||
<a name="asio.reference.io_context__strand.operator_eq__eq_.h0"></a>
|
||||
<span><a name="asio.reference.io_context__strand.operator_eq__eq_.requirements"></a></span><a class="link" href="operator_eq__eq_.html#asio.reference.io_context__strand.operator_eq__eq_.requirements">Requirements</a>
|
||||
</h6>
|
||||
<p>
|
||||
<span class="emphasis"><em>Header: </em></span><code class="literal">asio/io_context_strand.hpp</code>
|
||||
</p>
|
||||
<p>
|
||||
<span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
|
||||
</p>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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>)
|
||||
</p>
|
||||
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|
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|
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<a accesskey="p" href="on_work_started.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="operator_eq__eq_.html"><img src="../../../next.png" alt="Next"></a>
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|
||||
<div class="section">
|
||||
<div class="titlepage"><div><div><h4 class="title">
|
||||
<a name="asio.reference.io_context__strand.operator_not__eq_"></a><a class="link" href="operator_not__eq_.html" title="io_context::strand::operator!=">io_context::strand::operator!=</a>
|
||||
</h4></div></div></div>
|
||||
<p>
|
||||
<a class="indexterm" name="asio.indexterm.io_context__strand.operator_not__eq_"></a>
|
||||
Compare
|
||||
two strands for inequality.
|
||||
</p>
|
||||
<pre class="programlisting">friend bool operator!=(
|
||||
const strand & a,
|
||||
const strand & b);
|
||||
</pre>
|
||||
<p>
|
||||
Two strands are equal if they refer to the same ordered, non-concurrent
|
||||
state.
|
||||
</p>
|
||||
<h6>
|
||||
<a name="asio.reference.io_context__strand.operator_not__eq_.h0"></a>
|
||||
<span><a name="asio.reference.io_context__strand.operator_not__eq_.requirements"></a></span><a class="link" href="operator_not__eq_.html#asio.reference.io_context__strand.operator_not__eq_.requirements">Requirements</a>
|
||||
</h6>
|
||||
<p>
|
||||
<span class="emphasis"><em>Header: </em></span><code class="literal">asio/io_context_strand.hpp</code>
|
||||
</p>
|
||||
<p>
|
||||
<span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
|
||||
</p>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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>)
|
||||
</p>
|
||||
</div></td>
|
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|
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|
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../asio.png"></td></tr></table>
|
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<hr>
|
||||
<div class="spirit-nav">
|
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<a accesskey="p" href="operator_eq__eq_.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="post/overload1.html"><img src="../../../next.png" alt="Next"></a>
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<div class="section">
|
||||
<div class="titlepage"><div><div><h4 class="title">
|
||||
<a name="asio.reference.io_context__strand.post"></a><a class="link" href="post.html" title="io_context::strand::post">io_context::strand::post</a>
|
||||
</h4></div></div></div>
|
||||
<p>
|
||||
<a class="indexterm" name="asio.indexterm.io_context__strand.post"></a>
|
||||
Request the
|
||||
strand to invoke the given function object.
|
||||
</p>
|
||||
<pre class="programlisting">template<
|
||||
typename Function,
|
||||
typename Allocator>
|
||||
void <a class="link" href="post/overload1.html" title="io_context::strand::post (1 of 2 overloads)">post</a>(
|
||||
Function && f,
|
||||
const Allocator & a) const;
|
||||
<span class="emphasis"><em>» <a class="link" href="post/overload1.html" title="io_context::strand::post (1 of 2 overloads)">more...</a></em></span>
|
||||
</pre>
|
||||
<p>
|
||||
(Deprecated: Use <a class="link" href="../post.html" title="post"><code class="computeroutput">post</code></a>.)
|
||||
Request the strand to invoke the given handler and return immediately.
|
||||
</p>
|
||||
<pre class="programlisting">template<
|
||||
typename <a class="link" href="../LegacyCompletionHandler.html" title="Legacy completion handler requirements">LegacyCompletionHandler</a>>
|
||||
<a class="link" href="../asynchronous_operations.html#asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> <a class="link" href="post/overload2.html" title="io_context::strand::post (2 of 2 overloads)">post</a>(
|
||||
LegacyCompletionHandler && handler);
|
||||
<span class="emphasis"><em>» <a class="link" href="post/overload2.html" title="io_context::strand::post (2 of 2 overloads)">more...</a></em></span>
|
||||
</pre>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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>)
|
||||
</p>
|
||||
</div></td>
|
||||
</tr></table>
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<hr>
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<div class="spirit-nav">
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|
||||
<div class="section">
|
||||
<div class="titlepage"><div><div><h5 class="title">
|
||||
<a name="asio.reference.io_context__strand.post.overload1"></a><a class="link" href="overload1.html" title="io_context::strand::post (1 of 2 overloads)">io_context::strand::post
|
||||
(1 of 2 overloads)</a>
|
||||
</h5></div></div></div>
|
||||
<p>
|
||||
Request the strand to invoke the given function object.
|
||||
</p>
|
||||
<pre class="programlisting">template<
|
||||
typename Function,
|
||||
typename Allocator>
|
||||
void post(
|
||||
Function && f,
|
||||
const Allocator & a) const;
|
||||
</pre>
|
||||
<p>
|
||||
This function is used to ask the executor to execute the given function
|
||||
object. The function object will never be executed inside this function.
|
||||
Instead, it will be scheduled to run by the underlying <a class="link" href="../../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a>.
|
||||
</p>
|
||||
<h6>
|
||||
<a name="asio.reference.io_context__strand.post.overload1.h0"></a>
|
||||
<span><a name="asio.reference.io_context__strand.post.overload1.parameters"></a></span><a class="link" href="overload1.html#asio.reference.io_context__strand.post.overload1.parameters">Parameters</a>
|
||||
</h6>
|
||||
<div class="variablelist">
|
||||
<p class="title"><b></b></p>
|
||||
<dl>
|
||||
<dt><span class="term">f</span></dt>
|
||||
<dd>
|
||||
<p>
|
||||
The function object to be called. The executor will make a copy
|
||||
of the handler object as required. The function signature of the
|
||||
function object must be:
|
||||
</p>
|
||||
<pre class="programlisting">void function();
|
||||
</pre>
|
||||
<p>
|
||||
</p>
|
||||
</dd>
|
||||
<dt><span class="term">a</span></dt>
|
||||
<dd><p>
|
||||
An allocator that may be used by the executor to allocate the internal
|
||||
storage needed for function invocation.
|
||||
</p></dd>
|
||||
</dl>
|
||||
</div>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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>)
|
||||
</p>
|
||||
</div></td>
|
||||
</tr></table>
|
||||
<hr>
|
||||
<div class="spirit-nav">
|
||||
<a accesskey="p" href="../post.html"><img src="../../../../prev.png" alt="Prev"></a><a accesskey="u" href="../post.html"><img src="../../../../up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../home.png" alt="Home"></a><a accesskey="n" href="overload2.html"><img src="../../../../next.png" alt="Next"></a>
|
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</div>
|
||||
</body>
|
||||
</html>
|
||||
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|
||||
<html>
|
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<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
|
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../../asio.png"></td></tr></table>
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<hr>
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|
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<a accesskey="p" href="overload1.html"><img src="../../../../prev.png" alt="Prev"></a><a accesskey="u" href="../post.html"><img src="../../../../up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../home.png" alt="Home"></a><a accesskey="n" href="../running_in_this_thread.html"><img src="../../../../next.png" alt="Next"></a>
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</div>
|
||||
<div class="section">
|
||||
<div class="titlepage"><div><div><h5 class="title">
|
||||
<a name="asio.reference.io_context__strand.post.overload2"></a><a class="link" href="overload2.html" title="io_context::strand::post (2 of 2 overloads)">io_context::strand::post
|
||||
(2 of 2 overloads)</a>
|
||||
</h5></div></div></div>
|
||||
<p>
|
||||
(Deprecated: Use <a class="link" href="../../post.html" title="post"><code class="computeroutput">post</code></a>.)
|
||||
Request the strand to invoke the given handler and return immediately.
|
||||
</p>
|
||||
<pre class="programlisting">template<
|
||||
typename <a class="link" href="../../LegacyCompletionHandler.html" title="Legacy completion handler requirements">LegacyCompletionHandler</a>>
|
||||
<a class="link" href="../../asynchronous_operations.html#asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> post(
|
||||
LegacyCompletionHandler && handler);
|
||||
</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_context.html" title="io_context"><code class="computeroutput">io_context</code></a>.
|
||||
The <a class="link" href="../../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a>
|
||||
guarantees that the handler will only be called in a thread in which
|
||||
the io_context's run member function is currently being invoked.
|
||||
</p>
|
||||
<h6>
|
||||
<a name="asio.reference.io_context__strand.post.overload2.h0"></a>
|
||||
<span><a name="asio.reference.io_context__strand.post.overload2.parameters"></a></span><a class="link" href="overload2.html#asio.reference.io_context__strand.post.overload2.parameters">Parameters</a>
|
||||
</h6>
|
||||
<div class="variablelist">
|
||||
<p class="title"><b></b></p>
|
||||
<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">void handler();
|
||||
</pre>
|
||||
<p>
|
||||
</p>
|
||||
</dd>
|
||||
</dl>
|
||||
</div>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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>)
|
||||
</p>
|
||||
</div></td>
|
||||
</tr></table>
|
||||
<hr>
|
||||
<div class="spirit-nav">
|
||||
<a accesskey="p" href="overload1.html"><img src="../../../../prev.png" alt="Prev"></a><a accesskey="u" href="../post.html"><img src="../../../../up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../home.png" alt="Home"></a><a accesskey="n" href="../running_in_this_thread.html"><img src="../../../../next.png" alt="Next"></a>
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|
||||
</body>
|
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</html>
|
||||
@@ -0,0 +1,54 @@
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
|
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|
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|
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<a accesskey="p" href="post/overload2.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="strand.html"><img src="../../../next.png" alt="Next"></a>
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</div>
|
||||
<div class="section">
|
||||
<div class="titlepage"><div><div><h4 class="title">
|
||||
<a name="asio.reference.io_context__strand.running_in_this_thread"></a><a class="link" href="running_in_this_thread.html" title="io_context::strand::running_in_this_thread">io_context::strand::running_in_this_thread</a>
|
||||
</h4></div></div></div>
|
||||
<p>
|
||||
<a class="indexterm" name="asio.indexterm.io_context__strand.running_in_this_thread"></a>
|
||||
Determine
|
||||
whether the strand is running in the current thread.
|
||||
</p>
|
||||
<pre class="programlisting">bool running_in_this_thread() const;
|
||||
</pre>
|
||||
<h6>
|
||||
<a name="asio.reference.io_context__strand.running_in_this_thread.h0"></a>
|
||||
<span><a name="asio.reference.io_context__strand.running_in_this_thread.return_value"></a></span><a class="link" href="running_in_this_thread.html#asio.reference.io_context__strand.running_in_this_thread.return_value">Return
|
||||
Value</a>
|
||||
</h6>
|
||||
<p>
|
||||
<code class="computeroutput">true</code> if the current thread is executing a handler that was
|
||||
submitted to the strand using <code class="computeroutput">post()</code>, <code class="computeroutput">dispatch()</code>
|
||||
or <code class="computeroutput">wrap()</code>. Otherwise returns <code class="computeroutput">false</code>.
|
||||
</p>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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>)
|
||||
</p>
|
||||
</div></td>
|
||||
</tr></table>
|
||||
<hr>
|
||||
<div class="spirit-nav">
|
||||
<a accesskey="p" href="post/overload2.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="strand.html"><img src="../../../next.png" alt="Next"></a>
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|
||||
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|
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|
||||
@@ -0,0 +1,62 @@
|
||||
<html>
|
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<head>
|
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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|
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../../asio.png"></td></tr></table>
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<hr>
|
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<div class="spirit-nav">
|
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<a accesskey="p" href="running_in_this_thread.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../io_context__strand.html"><img src="../../../up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../home.png" alt="Home"></a><a accesskey="n" href="wrap.html"><img src="../../../next.png" alt="Next"></a>
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</div>
|
||||
<div class="section">
|
||||
<div class="titlepage"><div><div><h4 class="title">
|
||||
<a name="asio.reference.io_context__strand.strand"></a><a class="link" href="strand.html" title="io_context::strand::strand">io_context::strand::strand</a>
|
||||
</h4></div></div></div>
|
||||
<p>
|
||||
<a class="indexterm" name="asio.indexterm.io_context__strand.strand"></a>
|
||||
Constructor.
|
||||
</p>
|
||||
<pre class="programlisting">strand(
|
||||
asio::io_context & io_context);
|
||||
</pre>
|
||||
<p>
|
||||
Constructs the strand.
|
||||
</p>
|
||||
<h6>
|
||||
<a name="asio.reference.io_context__strand.strand.h0"></a>
|
||||
<span><a name="asio.reference.io_context__strand.strand.parameters"></a></span><a class="link" href="strand.html#asio.reference.io_context__strand.strand.parameters">Parameters</a>
|
||||
</h6>
|
||||
<div class="variablelist">
|
||||
<p class="title"><b></b></p>
|
||||
<dl>
|
||||
<dt><span class="term">io_context</span></dt>
|
||||
<dd><p>
|
||||
The <a class="link" href="../io_context.html" title="io_context"><code class="computeroutput">io_context</code></a>
|
||||
object that the strand will use to dispatch handlers that are ready
|
||||
to be run.
|
||||
</p></dd>
|
||||
</dl>
|
||||
</div>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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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<div class="section">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="asio.reference.io_context__strand.wrap"></a><a class="link" href="wrap.html" title="io_context::strand::wrap">io_context::strand::wrap</a>
|
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</h4></div></div></div>
|
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<p>
|
||||
<a class="indexterm" name="asio.indexterm.io_context__strand.wrap"></a>
|
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(Deprecated:
|
||||
Use <a class="link" href="../bind_executor.html" title="bind_executor"><code class="computeroutput">bind_executor</code></a>.)
|
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Create a new handler that automatically dispatches the wrapped handler
|
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on the strand.
|
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</p>
|
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<pre class="programlisting">template<
|
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typename <a class="link" href="../Handler.html" title="Handlers">Handler</a>>
|
||||
unspecified wrap(
|
||||
Handler handler);
|
||||
</pre>
|
||||
<p>
|
||||
This function is used to create a new handler function object that, when
|
||||
invoked, will automatically pass the wrapped handler to the strand's dispatch
|
||||
function.
|
||||
</p>
|
||||
<h6>
|
||||
<a name="asio.reference.io_context__strand.wrap.h0"></a>
|
||||
<span><a name="asio.reference.io_context__strand.wrap.parameters"></a></span><a class="link" href="wrap.html#asio.reference.io_context__strand.wrap.parameters">Parameters</a>
|
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</h6>
|
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<div class="variablelist">
|
||||
<p class="title"><b></b></p>
|
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<dl>
|
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<dt><span class="term">handler</span></dt>
|
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<dd>
|
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<p>
|
||||
The handler to be wrapped. The strand will make a copy of the handler
|
||||
object as required. The function signature of the handler must be:
|
||||
</p>
|
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<pre class="programlisting">void handler(A1 a1, ... An an);
|
||||
</pre>
|
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<p>
|
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</p>
|
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</dd>
|
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</dl>
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</div>
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<h6>
|
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<a name="asio.reference.io_context__strand.wrap.h1"></a>
|
||||
<span><a name="asio.reference.io_context__strand.wrap.return_value"></a></span><a class="link" href="wrap.html#asio.reference.io_context__strand.wrap.return_value">Return Value</a>
|
||||
</h6>
|
||||
<p>
|
||||
A function object that, when invoked, passes the wrapped handler to the
|
||||
strand's dispatch function. Given a function object with the signature:
|
||||
</p>
|
||||
<pre class="programlisting">R f(A1 a1, ... An an);
|
||||
</pre>
|
||||
<p>
|
||||
If this function object is passed to the wrap function like so:
|
||||
</p>
|
||||
<pre class="programlisting">strand.wrap(f);
|
||||
</pre>
|
||||
<p>
|
||||
then the return value is a function object with the signature
|
||||
</p>
|
||||
<pre class="programlisting">void g(A1 a1, ... An an);
|
||||
</pre>
|
||||
<p>
|
||||
that, when invoked, executes code equivalent to:
|
||||
</p>
|
||||
<pre class="programlisting">strand.dispatch(boost::bind(f, a1, ... an));
|
||||
</pre>
|
||||
</div>
|
||||
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
||||
<td align="left"></td>
|
||||
<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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>)
|
||||
</p>
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</div></td>
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