Revision 6512634130fe91f21916779e78dde245ea88aaec authored by Tzu-Mao Li on 28 October 2019, 15:19:00 UTC, committed by Tzu-Mao Li on 28 October 2019, 15:19:00 UTC
clock.h
// A current_time function for use in the tests. Returns time in
// milliseconds.
#ifdef _WIN32
#include <Windows.h>
double current_time() {
LARGE_INTEGER freq, t;
QueryPerformanceCounter(&t);
QueryPerformanceFrequency(&freq);
return (t.QuadPart * 1000.0) / freq.QuadPart;
}
// Gross, these come from Windows.h
#undef max
#undef min
#else
#include <sys/time.h>
double current_time() {
static bool first_call = true;
static timeval reference_time;
if (first_call) {
first_call = false;
gettimeofday(&reference_time, NULL);
return 0.0;
} else {
timeval t;
gettimeofday(&t, NULL);
return ((t.tv_sec - reference_time.tv_sec)*1000.0 +
(t.tv_usec - reference_time.tv_usec)/1000.0);
}
}
#endif
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