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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>DMTL: time_tracker.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.7 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><h1>time_tracker.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span><a name="l00002"></a>00002 <span class="comment"> * Copyright (C) 2005 M.J. Zaki <zaki@cs.rpi.edu> Rensselaer Polytechnic Institute</span><a name="l00003"></a>00003 <span class="comment"> * Written by parimi@cs.rpi.edu</span><a name="l00004"></a>00004 <span class="comment"> * Updated by chaojv@cs.rpi.edu, alhasan@cs.rpi.edu, salems@cs.rpi.edu</span><a name="l00005"></a>00005 <span class="comment"> *</span><a name="l00006"></a>00006 <span class="comment"> * This program is free software; you can redistribute it and/or</span><a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the GNU General Public License</span><a name="l00008"></a>00008 <span class="comment"> * as published by the Free Software Foundation; either version 2</span><a name="l00009"></a>00009 <span class="comment"> * of the License, or (at your option) any later version.</span><a name="l00010"></a>00010 <span class="comment"> *</span><a name="l00011"></a>00011 <span class="comment"> * This program is distributed in the hope that it will be useful,</span><a name="l00012"></a>00012 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span><a name="l00013"></a>00013 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span><a name="l00014"></a>00014 <span class="comment"> * GNU General Public License for more details.</span><a name="l00015"></a>00015 <span class="comment"> *</span><a name="l00016"></a>00016 <span class="comment"> * You should have received a copy of the GNU General Public License along</span><a name="l00017"></a>00017 <span class="comment"> * with this program; if not, write to the Free Software Foundation, Inc.,</span><a name="l00018"></a>00018 <span class="comment"> * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.</span><a name="l00019"></a>00019 <span class="comment"> */</span><a name="l00020"></a>00020 <span class="preprocessor">#ifndef _TT_H</span><a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define _TT_H</span><a name="l00022"></a>00022 <span class="preprocessor"></span><a name="l00023"></a>00023 <span class="preprocessor">#include <sys/time.h></span><a name="l00024"></a>00024 <span class="preprocessor">#include <unistd.h></span><a name="l00025"></a>00025 <a name="l00026"></a>00026 <span class="preprocessor">#define microsec 1000000.0</span><a name="l00027"></a>00027 <span class="preprocessor"></span><a name="l00032"></a><a class="code" href="classtime__tracker.html">00032</a> <span class="keyword">class </span><a class="code" href="classtime__tracker.html">time_tracker</a> {<a name="l00033"></a>00033 <span class="keyword">private</span>:<a name="l00034"></a>00034 <span class="keyword">struct </span>timeval start_time;<a name="l00035"></a>00035 <span class="keyword">struct </span>timeval stop_time;<a name="l00036"></a>00036 <span class="keywordtype">bool</span> running;<a name="l00037"></a>00037 <span class="keywordtype">double</span> curr_time;<a name="l00038"></a>00038 <span class="keyword">public</span>:<a name="l00039"></a>00039 <a class="code" href="classtime__tracker.html">time_tracker</a>() {<a name="l00040"></a>00040 running=<span class="keyword">false</span>;<a name="l00041"></a>00041 curr_time=0;<a name="l00042"></a>00042 }<a name="l00043"></a>00043 <a name="l00045"></a><a class="code" href="classtime__tracker.html#cbe4e1e72cf61ff3f4c135e161fc5a50">00045</a> <span class="keywordtype">void</span> <a class="code" href="classtime__tracker.html#cbe4e1e72cf61ff3f4c135e161fc5a50">start</a>() {<a name="l00046"></a>00046 gettimeofday(&start_time, (<span class="keyword">struct</span> timezone *)0);<a name="l00047"></a>00047 running=<span class="keyword">true</span>;<a name="l00048"></a>00048 }<a name="l00049"></a>00049 <a name="l00051"></a><a class="code" href="classtime__tracker.html#a6790d26a9c1c83569711a7634413856">00051</a> <span class="keywordtype">void</span> <a class="code" href="classtime__tracker.html#a6790d26a9c1c83569711a7634413856">stop</a>() {<a name="l00052"></a>00052 <span class="keywordtype">double</span> st, en;<a name="l00053"></a>00053 <span class="keywordflow">if</span> (!running) <span class="keywordflow">return</span>;<a name="l00054"></a>00054 <span class="keywordflow">else</span> {<a name="l00055"></a>00055 gettimeofday(&stop_time, (<span class="keyword">struct</span> timezone *)0);<a name="l00056"></a>00056 st = start_time.tv_sec + (start_time.tv_usec/microsec);<a name="l00057"></a>00057 en = stop_time.tv_sec + (stop_time.tv_usec/microsec);<a name="l00058"></a>00058 running=<span class="keyword">false</span>;<a name="l00059"></a>00059 curr_time+=en-st;<a name="l00060"></a>00060 }<a name="l00061"></a>00061 }<a name="l00062"></a>00062 <a name="l00063"></a>00063 <span class="keywordtype">double</span> print()<span class="keyword"> const</span><a name="l00064"></a>00064 <span class="keyword"> </span>{ <span class="keywordflow">return</span> curr_time; }<a name="l00065"></a>00065 };<a name="l00066"></a>00066 <a name="l00067"></a>00067 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="align: right;"><small>Generated on Wed Jul 26 14:01:08 2006 for DMTL by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.7 </small></address></body></html>⌨️ 快捷键说明
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