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bench.c: time functions moved to common/util.h

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inikep
2016-04-28 13:16:01 +02:00
parent 69fcd7c0ae
commit 83c76b4594
3 changed files with 78 additions and 75 deletions
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lib/common/util.h
+54
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@@ -42,6 +42,7 @@ extern "C" {
/*-****************************************
* Dependencies
******************************************/
#include <time.h> /* clock_t, nanosleep, clock, CLOCKS_PER_SEC */
/*-****************************************
@@ -57,10 +58,63 @@ extern "C" {
# define UTIL_STATIC static /* this version may generate warnings for unused static functions; disable the relevant warning */
#endif
/* Sleep functions: posix - windows - others */
#if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)))
# include <unistd.h>
# include <sys/resource.h> /* setpriority */
# define UTIL_sleep(s) sleep(s)
# define UTIL_sleepMilli(milli) { struct timespec t; t.tv_sec=0; t.tv_nsec=milli*1000000ULL; nanosleep(&t, NULL); }
# define SET_HIGH_PRIORITY setpriority(PRIO_PROCESS, 0, -20)
#elif defined(_WIN32)
# include <windows.h>
# define UTIL_sleep(s) Sleep(1000*s)
# define UTIL_sleepMilli(milli) Sleep(milli)
# define SET_HIGH_PRIORITY SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS)
#else
# define UTIL_sleep(s) /* disabled */
# define UTIL_sleepMilli(milli) /* disabled */
# define SET_HIGH_PRIORITY /* disabled */
#endif
#if !defined(_WIN32)
typedef clock_t UTIL_time_t;
# define UTIL_initTimer(ticksPerSecond) ticksPerSecond=0
# define UTIL_getTime(x) x = clock()
# define UTIL_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd) (1000000ULL * (clockEnd - clockStart) / CLOCKS_PER_SEC)
# define UTIL_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) (1000000000ULL * (clockEnd - clockStart) / CLOCKS_PER_SEC)
#else
typedef LARGE_INTEGER UTIL_time_t;
# define UTIL_initTimer(x) if (!QueryPerformanceFrequency(&x)) { fprintf(stderr, "ERROR: QueryPerformance not present\n"); }
# define UTIL_getTime(x) QueryPerformanceCounter(&x)
# define UTIL_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd) (1000000ULL*(clockEnd.QuadPart - clockStart.QuadPart)/ticksPerSecond.QuadPart)
# define UTIL_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) (1000000000ULL*(clockEnd.QuadPart - clockStart.QuadPart)/ticksPerSecond.QuadPart)
#endif
/*-****************************************
* Utility functions
******************************************/
/* returns time span in microseconds */
UTIL_STATIC U64 UTIL_clockSpanMicro( UTIL_time_t clockStart, UTIL_time_t ticksPerSecond )
{
UTIL_time_t clockEnd;
(void)ticksPerSecond;
UTIL_getTime(clockEnd);
return UTIL_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd);
}
UTIL_STATIC void UTIL_waitForNextTick(UTIL_time_t ticksPerSecond)
{
UTIL_time_t clockStart, clockEnd;
UTIL_getTime(clockStart);
do { UTIL_getTime(clockEnd); }
while (UTIL_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) == 0);
}
UTIL_STATIC U64 UTIL_getFileSize(const char* infilename)
{
int r;