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#include <sys/time.h> /*timeval*/
#include "timeval.h" /*(timevalXXX)*/
/* a = b [10mS] */
void
timevalSet10ms(struct timeval *ap, int b)
{
ap->tv_sec = b / 100;
ap->tv_usec = (b % 100) * 10*1000;
}
/* a += b */
void
timevalAdd(struct timeval *ap, const struct timeval *bp)
{
ap->tv_sec += bp->tv_sec;
ap->tv_usec += bp->tv_usec;
if (ap->tv_usec >= 1000*1000) {
ap->tv_usec -= 1000*1000;
ap->tv_sec += 1;
}
}
/* a -= b */
void
timevalSub(struct timeval *ap, const struct timeval *bp)
{
ap->tv_sec -= bp->tv_sec;
ap->tv_usec -= bp->tv_usec;
if (ap->tv_usec < 0) {
ap->tv_usec += 1000*1000;
ap->tv_sec -= 1;
}
}
/* (a < b): -1, (a==b): 0, (a > b): 1 */
int
timevalCmp(const struct timeval *ap, const struct timeval *bp)
{
if (ap->tv_sec < bp->tv_sec) return -1;
if (ap->tv_sec > bp->tv_sec) return 1;
if (ap->tv_usec < bp->tv_usec) return -1;
if (ap->tv_usec > bp->tv_usec) return 1;
return 0;
}
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