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