88 lines
2.4 KiB
C
88 lines
2.4 KiB
C
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/*
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* Copyright 2011, Ben Langmead <langmea@cs.jhu.edu>
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*
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* This file is part of Bowtie 2.
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*
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* Bowtie 2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Bowtie 2 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Bowtie 2. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TIMER_H_
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#define TIMER_H_
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#include <ctime>
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#include <iostream>
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#include <sstream>
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#include <iomanip>
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using namespace std;
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/**
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* Use time() call to keep track of elapsed time between creation and
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* destruction. If verbose is true, Timer will print a message showing
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* elapsed time to the given output stream upon destruction.
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*/
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class Timer {
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public:
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Timer(ostream& out = cout, const char *msg = "", bool verbose = true) :
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_t(time(0)), _out(out), _msg(msg), _verbose(verbose) { }
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/// Optionally print message
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~Timer() {
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if(_verbose) write(_out);
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}
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/// Return elapsed time since Timer object was created
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time_t elapsed() const {
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return time(0) - _t;
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}
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void write(ostream& out) {
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time_t passed = elapsed();
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// Print the message supplied at construction time followed
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// by time elapsed formatted HH:MM:SS
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time_t hours = (passed / 60) / 60;
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time_t minutes = (passed / 60) % 60;
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time_t seconds = (passed % 60);
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std::ostringstream oss;
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oss << _msg << setfill ('0') << setw (2) << hours << ":"
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<< setfill ('0') << setw (2) << minutes << ":"
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<< setfill ('0') << setw (2) << seconds << endl;
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out << oss.str().c_str();
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}
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private:
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time_t _t;
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ostream& _out;
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const char *_msg;
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bool _verbose;
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};
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static inline void logTime(std::ostream& os, bool nl = true) {
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struct tm *current;
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time_t now;
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time(&now);
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current = localtime(&now);
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std::ostringstream oss;
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oss << setfill('0') << setw(2)
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<< current->tm_hour << ":"
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<< setfill('0') << setw(2)
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<< current->tm_min << ":"
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<< setfill('0') << setw(2)
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<< current->tm_sec;
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if(nl) oss << std::endl;
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os << oss.str().c_str();
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}
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#endif /*TIMER_H_*/
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