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<title>Class Poco::Stopwatch</title>
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<meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/>
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<meta name="date" content="2009-11-24"/>
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<h1 class="namespace"><a href="Poco.html" class="namespace">Poco</a></h1>
<h1 class="symbol">class Stopwatch</h1>
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<p>
<b>Library:</b> Foundation<br />
<b>Package:</b> DateTime<br />
<b>Header:</b> Poco/Stopwatch.h</p>
<h2>Description</h2>
<div class="description">
<p>A simple facility to measure time intervals with microsecond resolution. </p>
<p>Note that <a href="Poco.Stopwatch.html" title="class Poco::Stopwatch">Stopwatch</a> is based on the <a href="Poco.Timestamp.html" title="class Poco::Timestamp">Timestamp</a> class. Therefore, if during a <a href="Poco.Stopwatch.html" title="class Poco::Stopwatch">Stopwatch</a> run, the system time is changed, the measured time will not be correct. </p>
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<h2>Member Summary</h2>
<p><b>Member Functions: </b><a href="Poco.Stopwatch.html#10195" title="Poco::Stopwatch::elapsed()">elapsed</a>, <a href="Poco.Stopwatch.html#10196" title="Poco::Stopwatch::elapsedSeconds()">elapsedSeconds</a>, <a href="Poco.Stopwatch.html#10193" title="Poco::Stopwatch::reset()">reset</a>, <a href="Poco.Stopwatch.html#10197" title="Poco::Stopwatch::resolution()">resolution</a>, <a href="Poco.Stopwatch.html#10194" title="Poco::Stopwatch::restart()">restart</a>, <a href="Poco.Stopwatch.html#10191" title="Poco::Stopwatch::start()">start</a>, <a href="Poco.Stopwatch.html#10192" title="Poco::Stopwatch::stop()">stop</a></p>
<h2>Constructors</h2>
<h3><a name="10189">Stopwatch</a></h3>
<p class="decl"><a href="Poco.Stopwatch.html" title="class Poco::Stopwatch">Stopwatch</a>();</p>
<div class="description">
<p></p>
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<h2>Destructor</h2>
<h3><a name="10190">~Stopwatch</a></h3>
<p class="decl">~<a href="Poco.Stopwatch.html" title="class Poco::Stopwatch">Stopwatch</a>();</p>
<div class="description">
<p></p>
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<h2>Member Functions</h2>
<h3><a name="10195">elapsed</a></h3>
<p class="decl"><a href="Poco.Timestamp.html#11151" title="Poco::Timestamp::TimeDiff">Timestamp::TimeDiff</a> elapsed() const;</p>
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<p>Returns the elapsed time in microseconds since the stopwatch started. </p>
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<h3><a name="10196">elapsedSeconds</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">int elapsedSeconds() const;</p>
<div class="description">
<p>Returns the number of seconds elapsed since the stopwatch started. </p>
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<h3><a name="10193">reset</a></h3>
<p class="decl">void reset();</p>
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<p>Resets the stopwatch. </p>
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<h3><a name="10197">resolution</a> <img src="images/static.gif" alt="static" title="static" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">static <a href="Poco.Timestamp.html#11149" title="Poco::Timestamp::TimeVal">Timestamp::TimeVal</a> resolution();</p>
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<p>Returns the resolution of the stopwatch. </p>
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<h3><a name="10194">restart</a></h3>
<p class="decl">void restart();</p>
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<p>Resets and starts the stopwatch. </p>
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<h3><a name="10191">start</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void start();</p>
<div class="description">
<p>Starts (or restarts) the stopwatch. </p>
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<h3><a name="10192">stop</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void stop();</p>
<div class="description">
<p>Stops or pauses the stopwatch. </p>
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<p class="footer">POCO C++ Libraries 1.3.6-all<br />
Copyright © 2009, <a href="http://pocoproject.org/" target="_blank">Applied Informatics Software Engineering GmbH and Contributors</a></p>
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