83 lines
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83 lines
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<title>Source listing for Timer.3</title>
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<link rel="up" href="../tuttimer3.html" title="Timer.3 - Binding arguments to a completion handler">
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<link rel="prev" href="../tuttimer3.html" title="Timer.3 - Binding arguments to a completion handler">
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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="../tuttimer3.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../tuttimer3.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="../tuttimer4.html"><img src="../../../next.png" alt="Next"></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.tutorial.tuttimer3.src"></a><a class="link" href="src.html" title="Source listing for Timer.3">Source listing for Timer.3</a>
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</h4></div></div></div>
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<pre class="programlisting"><span class="comment">//</span>
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<span class="comment">// timer.cpp</span>
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<span class="comment">// ~~~~~~~~~</span>
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<span class="comment">//</span>
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<span class="comment">// Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com)</span>
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<span class="comment">//</span>
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<span class="comment">// Distributed under the Boost Software License, Version 1.0. (See accompanying</span>
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<span class="comment">// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)</span>
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<span class="comment">//</span>
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<span class="special">#</span><span class="identifier">include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span>
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<span class="special">#</span><span class="identifier">include</span> <span class="special"><</span><span class="identifier">asio</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
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<span class="special">#</span><span class="identifier">include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bind</span><span class="special">/</span><span class="identifier">bind</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
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<span class="keyword">void</span> <span class="identifier">print</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">asio</span><span class="special">::</span><span class="identifier">error_code</span><span class="special">&</span> <span class="comment">/*e*/</span><span class="special">,</span>
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<span class="identifier">asio</span><span class="special">::</span><span class="identifier">steady_timer</span><span class="special">*</span> <span class="identifier">t</span><span class="special">,</span> <span class="keyword">int</span><span class="special">*</span> <span class="identifier">count</span><span class="special">)</span>
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<span class="special">{</span>
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<span class="keyword">if</span> <span class="special">(*</span><span class="identifier">count</span> <span class="special"><</span> <span class="number">5</span><span class="special">)</span>
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<span class="special">{</span>
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<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="special">*</span><span class="identifier">count</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
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<span class="special">++(*</span><span class="identifier">count</span><span class="special">);</span>
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<span class="identifier">t</span><span class="special">-></span><span class="identifier">expires_at</span><span class="special">(</span><span class="identifier">t</span><span class="special">-></span><span class="identifier">expiry</span><span class="special">()</span> <span class="special">+</span> <span class="identifier">asio</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">seconds</span><span class="special">(</span><span class="number">1</span><span class="special">));</span>
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<span class="identifier">t</span><span class="special">-></span><span class="identifier">async_wait</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">bind</span><span class="special">(</span><span class="identifier">print</span><span class="special">,</span>
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<span class="identifier">asio</span><span class="special">::</span><span class="identifier">placeholders</span><span class="special">::</span><span class="identifier">error</span><span class="special">,</span> <span class="identifier">t</span><span class="special">,</span> <span class="identifier">count</span><span class="special">));</span>
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<span class="special">}</span>
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<span class="special">}</span>
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<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
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<span class="special">{</span>
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<span class="identifier">asio</span><span class="special">::</span><span class="identifier">io_context</span> <span class="identifier">io</span><span class="special">;</span>
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<span class="keyword">int</span> <span class="identifier">count</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
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<span class="identifier">asio</span><span class="special">::</span><span class="identifier">steady_timer</span> <span class="identifier">t</span><span class="special">(</span><span class="identifier">io</span><span class="special">,</span> <span class="identifier">asio</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">seconds</span><span class="special">(</span><span class="number">1</span><span class="special">));</span>
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<span class="identifier">t</span><span class="special">.</span><span class="identifier">async_wait</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">bind</span><span class="special">(</span><span class="identifier">print</span><span class="special">,</span>
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<span class="identifier">asio</span><span class="special">::</span><span class="identifier">placeholders</span><span class="special">::</span><span class="identifier">error</span><span class="special">,</span> <span class="special">&</span><span class="identifier">t</span><span class="special">,</span> <span class="special">&</span><span class="identifier">count</span><span class="special">));</span>
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<span class="identifier">io</span><span class="special">.</span><span class="identifier">run</span><span class="special">();</span>
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<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Final count is "</span> <span class="special"><<</span> <span class="identifier">count</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
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<span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
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<span class="special">}</span>
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</pre>
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<p>
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Return to <a class="link" href="../tuttimer3.html" title="Timer.3 - Binding arguments to a completion handler">Timer.3 - Binding arguments
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to a completion handler</a>
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</p>
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</div>
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<div class="copyright-footer">Copyright © 2003-2023 Christopher M. 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>
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