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// FILE timing.cc : Simple test program for cross-platform timing (timer.cc)
//////////////////////////////////////////////////////////////////////////
//
// Copyright 1990-2012 Marcus Mo
//
// This file is part of the eclib package.
//
// eclib is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2 of the License, or (at your
// option) any later version.
//
// eclib is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License
// along with eclib; if not, write to the Free Software Foundation,
// Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
//
//////////////////////////////////////////////////////////////////////////
// Include headers
#include <iostream>
#include <sstream>
#include <eclib/interface.h>
#include <eclib/timer.h>
// Basic platform detection
#ifdef _WIN32
#include <windows.h>
#define powernap(x) Sleep(x)
#else
#include <unistd.h>
#define powernap(x) usleep((x)*1000)
#endif
int main( int argc, char **argv ) {
// Variables
int numTimers = 1;
std::string prefix = "timer";
std::vector< std::string > names;
int verbose = 0;
// Verbosity
std::cout << "Verbose (0/1): ";
std::cin >> verbose;
// Introduction
std::cout << "Program timing - demonstration and testing." << std::endl;
// Read in number of subtimers
std::cout << "How many subtimers? ";
std::cin >> numTimers;
// Initiate single timer object instance
// Timings will be written to std::cout
timer logbook;
// OR: Write timings to a file. Pass a filename (string)
// timer logbook( "times.dat" );
// A default timer is automatically setup
std::cout << "Start default timer" << std::endl;
logbook.start();
// Initiate the subtimers
for( int t = 0; t < numTimers; t++ ) {
// Create a name for each subtimer
// Usually hard-coded into program but we just
// increment a counter and attach to a prefix.
stringstream ss;
ss << prefix << t;
names.push_back( ss.str() );
// add() takes in a string object
std::cout << "Adding " << names[t] << std::endl;
logbook.add( names[t] );
}
// Slumber for one second
powernap(1000);
// Start all subtimers
for( int t = 0; t < numTimers; t++ ) {
std::cout << "Starting " << names[t] << std::endl;
logbook.start( names[t] );
// Slumber for one second
powernap(1000);
}
// Stop all timers, including default timer
std::cout << "Stopping all timers" << std::endl;
logbook.stopAll();
// Write statistics to terminal
// Commented out for `make check` to pass
if( verbose ) logbook.showAll();
exit( EXIT_SUCCESS );
}
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