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49 lines
755 B
49 lines
755 B
3 months ago
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/*
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* UCW Library -- A Simple Millisecond Timer
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*
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* (c) 2007--2012 Martin Mares <mj@ucw.cz>
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*
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* This software may be freely distributed and used according to the terms
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* of the GNU Lesser General Public License.
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*/
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#include <ucw/lib.h>
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#include <ucw/time.h>
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void
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init_timer(timestamp_t *timer)
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{
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*timer = get_timestamp();
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}
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uint
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get_timer(timestamp_t *timer)
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{
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timestamp_t t = *timer;
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*timer = get_timestamp();
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return MIN(*timer-t, ~0U);
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}
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uint
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switch_timer(timestamp_t *oldt, timestamp_t *newt)
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{
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*newt = get_timestamp();
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return MIN(*newt-*oldt, ~0U);
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}
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#ifdef TEST
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#include <stdio.h>
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#include <unistd.h>
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int main(void)
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{
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timestamp_t t;
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init_timer(&t);
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usleep(50000);
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printf("%u\n", get_timer(&t));
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return 0;
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}
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#endif
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