testClock.cpp File Reference

#include <cstdio>
#include <cmath>
#include <iostream>
#include "DGtal/base/Common.h"
#include "DGtal/base/Clock.h"

Go to the source code of this file.

Functions
bool	test_minimalTick ()
	Minimal tick must be >=0. More...
bool	test_loopTick ()
	Loop ticks must be >=0. More...
bool	test_MultipleLoop ()
	Test several loops. More...
bool	test_RestartClock ()
	Test restart. More...
int	main ()

Detailed Description

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program 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 this program. If not, see http://www.gnu.org/licenses/.

Author

David Coeurjolly (david.nosp@m..coe.nosp@m.urjol.nosp@m.ly@l.nosp@m.iris..nosp@m.cnrs.nosp@m..fr )

Date

2009/12/13

This file is part of the DGtal library

Definition in file testClock.cpp.

Function Documentation

main()

int main

(

void

)

Definition at line 144 of file testClock.cpp.

{
  if (test_minimalTick() && test_loopTick() && test_MultipleLoop() && test_RestartClock())
    return 0;
  else
    return 1;
 
}

References test_loopTick(), test_minimalTick(), test_MultipleLoop(), and test_RestartClock().

test_loopTick()

bool test_loopTick

(

)

Loop ticks must be >=0.

Definition at line 58 of file testClock.cpp.

{
  double tick,tmp=0;
 
  Clock c;
  c.startClock();
  for (unsigned int i=0 ; i< 4334450; i++)
    tmp = cos(tmp+i);
 
  tick = c.stopClock();
  trace.info()<< "Loop tick: "<< tick <<endl;
  return (tick >= 0);
}

References DGtal::Trace::info(), DGtal::Clock::startClock(), and DGtal::trace.

Referenced by main().

test_minimalTick()

bool test_minimalTick

(

)

Minimal tick must be >=0.

Definition at line 44 of file testClock.cpp.

{
  double tick;
  Clock c;
 
  trace.info() << c <<std::endl;
 
  c.startClock();
  tick = c.stopClock();
  trace.info() << "Minimal tick: "<< tick <<endl;
  return (tick >= 0);
}

References DGtal::Trace::info(), and DGtal::trace.

Referenced by main().

test_MultipleLoop()

bool test_MultipleLoop

(

)

Test several loops.

Definition at line 73 of file testClock.cpp.

{
  double tick1,tick2,tick3,tmp=0;
 
  Clock c,c2,c3;
 
  c3.startClock();
  c.startClock();
  for (unsigned int i=0 ; i< 43350; i++)
    tmp = cos(tmp+i);
 
  c2.startClock();
  for (unsigned int i=0 ; i< 43350; i++)
    tmp = cos(tmp+i);
 
  tick2 = c2.stopClock();
 
  for (unsigned int i=0 ; i< 43450; i++)
    tmp = cos(tmp+i);
 
  tick1 = c.stopClock();
  tick3=c3.stopClock();
 
  trace.info()<< "Loop tick1: "<< tick1
              <<" Loop tick2: "<< tick2
              << " total: "<< tick3 <<endl;
  return ((tick3 >= tick1) && (tick1 >= 0));
}

References DGtal::Trace::info(), DGtal::Clock::startClock(), DGtal::Clock::stopClock(), and DGtal::trace.

Referenced by main().

test_RestartClock()

bool test_RestartClock

(

)

Test restart.

Definition at line 103 of file testClock.cpp.

{
  double tmp = 0.0;
  double tick_total=0., tick_accum=0.;
  Clock c_total, c_accum;
 
  c_total.startClock();
  c_accum.startClock();
 
#if !defined(WIN32)
  
  for (unsigned int i=0 ; i< 43350; i++)
    tmp = cos(tmp+i);
        usleep(20000);
  tick_accum += c_accum.restartClock();
 
  for (unsigned int i=0 ; i< 43350; i++)
    tmp = cos(tmp+i);
        usleep(20000);
  tick_accum += c_accum.restartClock();
 
  for (unsigned int i=0 ; i< 43350; i++)
    tmp = cos(tmp+i);
        usleep(20000);
  tick_accum += c_accum.restartClock();
 
  tick_total = c_total.stopClock();
 
        double delta = tick_total-tick_accum;
 
  trace.info()<< "Loop tick_total: " << tick_total
              << " Loop tick_accum: " << tick_accum
              << " Delta = "<<delta << endl;
 
  //return delta>=0 && delta<1e-4;
#endif
  return true;
}

References DGtal::Trace::info(), DGtal::Clock::restartClock(), DGtal::Clock::startClock(), DGtal::Clock::stopClock(), and DGtal::trace.

Referenced by main().