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// File: OSD_PerfMeter.hxx
// Created: 03.04.02 15:26:30
// Author: Michael SAZONOV
#ifndef OSD_PerfMeter_HeaderFile
#define OSD_PerfMeter_HeaderFile
#include <OSD_PerfMeter.h>
// This class enables measuring the CPU time between two points of code
// execution, regardless of the scope of these points of code. A meter is
// identified by its name (string of chars). So multiple objects in various
// places of user code may point to the same meter. The results will be
// printed on stdout upon finish of the program. For details see
// OSD_PerfMeter.h
class OSD_PerfMeter {
public:
// ---------- PUBLIC METHODS ----------
OSD_PerfMeter () : myIMeter(-1) {}
// constructs a void meter (to further call Init and Start)
OSD_PerfMeter (const char* meter, const unsigned autoStart = 1)
: myIMeter(perf_get_meter(meter,0,0)) {
if (myIMeter < 0) myIMeter = perf_init_meter(meter);
if (autoStart) Start();
}
// constructs and starts (if autoStart is true) the named meter
void Init (const char* meter) {
myIMeter = perf_get_meter(meter,0,0);
if (myIMeter < 0) myIMeter = perf_init_meter(meter);
}
// prepares the named meter
void Start () const { perf_start_imeter(myIMeter); }
// starts the meter
void Stop () const { perf_stop_imeter(myIMeter); }
// stops the meter
void Tick () const { perf_tick_imeter(myIMeter); }
// increments the counter w/o time measurement
void Flush () const { perf_close_imeter(myIMeter); }
// outputs the meter data and resets it to initial state
virtual ~OSD_PerfMeter () { if (myIMeter >= 0) Stop(); }
// assures stopping upon destruction
protected:
// ---------- PROTECTED FIELDS ----------
int myIMeter;
};
#endif
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