48 lines
774 B
C
48 lines
774 B
C
// 22 april 2019
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#include <stdlib.h>
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#include <string.h>
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#include <mach/mach.h>
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#include <mach/mach_time.h>
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#include "testing.h"
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struct testingTimer {
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uint64_t start;
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uint64_t end;
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};
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testingTimer *testingNewTimer(void)
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{
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testingTimer *t;
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t = (testingTimer *) malloc(sizeof (testingTimer));
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// TODO handle failure
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memset(t, 0, sizeof (testingTimer));
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return t;
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}
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void testingFreeTimer(testingTimer *t)
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{
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free(t);
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}
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void testingTimerStart(testingTimer *t)
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{
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t->start = mach_absolute_time();
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}
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void testingTimerEnd(testingTimer *t)
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{
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t->end = mach_absolute_time();
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}
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int64_t testingTimerNsec(testingTimer *t)
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{
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mach_timebase_info_data_t mt;
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uint64_t c;
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mach_timebase_info(&mt);
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c = t->end - t->start;
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c = c * mt.numer / mt.denom;
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return (int64_t) c;
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}
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