timer.h File Reference

Include dependency graph for timer.h:

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Functions
void	StartTimer ()
double	GetTimer ()

Variables
struct timeval	timerStart

Function Documentation

GetTimer()

double GetTimer

(

)

Definition at line 56 of file timer.h.

{
#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
    LARGE_INTEGER li;
    QueryPerformanceCounter(&li);
    return (double)(li.QuadPart-timerStart)/PCFreq;
#else
    struct timeval timerStop, timerElapsed;
    gettimeofday(&timerStop, NULL);
    timersub(&timerStop, &timerStart, &timerElapsed);
    return timerElapsed.tv_sec*1000.0+timerElapsed.tv_usec/1000.0;
#endif
}

StartTimer()

void StartTimer

(

)

Definition at line 37 of file timer.h.

{
#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
    LARGE_INTEGER li;
 
    if (!QueryPerformanceFrequency(&li))
    {
        printf("QueryPerformanceFrequency failed!\n");
    }
 
    PCFreq = (double)li.QuadPart/1000.0;
    QueryPerformanceCounter(&li);
    timerStart = li.QuadPart;
#else
    gettimeofday(&timerStart, NULL);
#endif
}

Variable Documentation

timerStart

struct timeval timerStart

Definition at line 34 of file timer.h.