timer_inl.h

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// to ease IDE parser
#include <chrono>

#include <agrum/core/timer.h>

namespace gum {


  INLINE
  void Timer::reset() {
    _sleeping = false;
    _start = std::chrono::high_resolution_clock::now();
    _pause = std::chrono::high_resolution_clock::now();

    // do _start = clock(); while ( _start == k );// to be sure to start at the
    // beginning of a tick
  }

  INLINE
  double Timer::step() const {
    std::chrono::duration< double, std::milli > ms;
    ;
    if (_sleeping)
      ms = _pause - _start;
    else
      ms = std::chrono::high_resolution_clock::now() - _start;
    return ms.count() / 1000.0;
  }

  INLINE
  double Timer::pause() {
    if (!_sleeping) {
      _pause = std::chrono::high_resolution_clock::now();
      _sleeping = true;
    }

    return step();
  }

  INLINE
  double Timer::resume() {
    if (_sleeping) {
      _start += std::chrono::high_resolution_clock::now() - _pause;
      _sleeping = false;
    }

    return step();
  }
} /* namespace gum */