Timer.hh

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#ifndef TIMER_HH
#define TIMER_HH
// ----------------------------------------------------------------------------
 
// ----------------------------------------------------------------------------
 
#include <OpenMesh/Core/System/config.hh>
//
#include <ostream>
#include <string>
#if defined(OM_CC_MIPS)
#  include <assert.h>
#else
#  include <cassert>
#endif
 
 
// ------------------------------------------------------------- namespace ----
 
namespace OpenMesh {
namespace Utils {
 
 
// -------------------------------------------------------------- forwards ----
 
 
class TimerImpl;
 
 
// ----------------------------------------------------------------- class ----
 
class OPENMESHDLLEXPORT Timer
{
public:
 
  enum Format {
    Automatic,
    Long,
    Hours,
    Minutes,
    Seconds,
    HSeconds,
    MSeconds,
    MicroSeconds,
    NanoSeconds
  };
 
  Timer(void);
 
  Timer(const Timer& _other) = delete;
 
  ~Timer(void);
 
  bool is_valid() const { return state_!=Invalid; }
 
  bool is_stopped() const { return state_==Stopped; }
 
  void reset(void);
 
  void start(void);
 
  void stop(void);
 
  void cont(void);
 
  float resolution() const;
    
  double seconds(void) const;
 
  double hseconds(void) const { return seconds()*1e2; }
 
  double mseconds(void) const { return seconds()*1e3; }
 
  double useconds(void) const { return seconds()*1e6; }
  
  std::string as_string(Format format = Automatic);
  
  static std::string as_string(double seconds, Format format = Automatic);
 
public:
 
  bool operator < (const Timer& t2) const 
  { 
    assert( is_stopped() && t2.is_stopped() ); 
    return (seconds() < t2.seconds()); 
  }
 
  bool operator > (const Timer& t2) const
  { 
    assert( is_stopped() && t2.is_stopped() ); 
    return (seconds() > t2.seconds()); 
  }
 
  bool operator == (const Timer& t2) const
  { 
    assert( is_stopped() && t2.is_stopped() ); 
    return (seconds() == t2.seconds()); 
  }
 
  bool operator <= (const Timer& t2) const
  {
    assert( is_stopped() && t2.is_stopped() ); 
    return (seconds() <= t2.seconds()); 
  }
 
  bool operator >=(const Timer& t2) const
  { 
    assert( is_stopped() && t2.is_stopped() ); 
    return (seconds() >= t2.seconds()); 
  }
 
protected:
 
  TimerImpl *impl_;
 
  enum {
    Invalid = -1,
    Stopped =  0,
    Running =  1
  } state_;
 
};
 
 
inline std::ostream& operator << (std::ostream& _o, const Timer& _t)
{
   return (_o << _t.seconds());
}
 
 
// ============================================================================
} // END_NS_UTILS
} // END_NS_OPENMESH
// ============================================================================
#endif
// end of Timer.hh
// ===========================================================================