Aryan Salmanpour
117 строки
1.7 KiB
C++
117 строки
1.7 KiB
C++
#include "timer.h"
|
|
|
|
#include <stdlib.h>
|
|
|
|
#ifdef _WIN32
|
|
#define WIN32_LEAN_AND_MEAN
|
|
#define VC_EXTRALEAN
|
|
#include <windows.h>
|
|
#pragma comment(lib, "user32")
|
|
#endif
|
|
|
|
#ifdef __linux__
|
|
#include <time.h>
|
|
#define NANOSECONDS_PER_SEC 1000000000
|
|
#endif
|
|
|
|
CPerfCounter::CPerfCounter() : _clocks(0), _start(0)
|
|
{
|
|
|
|
#ifdef _WIN32
|
|
|
|
QueryPerformanceFrequency((LARGE_INTEGER *)&_freq);
|
|
|
|
#endif
|
|
|
|
#ifdef __linux__
|
|
_freq = NANOSECONDS_PER_SEC;
|
|
#endif
|
|
|
|
}
|
|
|
|
CPerfCounter::~CPerfCounter()
|
|
{
|
|
// EMPTY!
|
|
}
|
|
|
|
void
|
|
CPerfCounter::Start(void)
|
|
{
|
|
|
|
#ifdef _WIN32
|
|
|
|
if( _start )
|
|
{
|
|
MessageBox(NULL, "Bad Perf Counter Start", "Error", MB_OK);
|
|
exit(0);
|
|
}
|
|
QueryPerformanceCounter((LARGE_INTEGER *)&_start);
|
|
|
|
#endif
|
|
#ifdef __linux__
|
|
|
|
struct timespec s;
|
|
clock_gettime(CLOCK_MONOTONIC, &s);
|
|
_start = (i64)s.tv_sec * NANOSECONDS_PER_SEC + (i64)s.tv_nsec ;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
void
|
|
CPerfCounter::Stop(void)
|
|
{
|
|
i64 n;
|
|
|
|
#ifdef _WIN32
|
|
|
|
if( !_start )
|
|
{
|
|
MessageBox(NULL, "Bad Perf Counter Stop", "Error", MB_OK);
|
|
exit(0);
|
|
}
|
|
|
|
QueryPerformanceCounter((LARGE_INTEGER *)&n);
|
|
|
|
#endif
|
|
#ifdef __linux__
|
|
|
|
struct timespec s;
|
|
clock_gettime(CLOCK_MONOTONIC, &s);
|
|
n = (i64)s.tv_sec * NANOSECONDS_PER_SEC + (i64)s.tv_nsec ;
|
|
|
|
#endif
|
|
|
|
n -= _start;
|
|
_start = 0;
|
|
_clocks += n;
|
|
}
|
|
|
|
void
|
|
CPerfCounter::Reset(void)
|
|
{
|
|
|
|
#ifdef _WIN32
|
|
if( _start )
|
|
{
|
|
MessageBox(NULL, "Bad Perf Counter Reset", "Error", MB_OK);
|
|
exit(0);
|
|
}
|
|
#endif
|
|
_clocks = 0;
|
|
}
|
|
|
|
double
|
|
CPerfCounter::GetElapsedTime(void)
|
|
{
|
|
#ifdef _WIN32
|
|
if( _start ) {
|
|
MessageBox(NULL, "Trying to get time while still running.", "Error", MB_OK);
|
|
exit(0);
|
|
}
|
|
#endif
|
|
|
|
return (double)_clocks / (double)_freq;
|
|
|
|
}
|