Function iperf_time_diff

src/iperf_time.c:142–174

iperf_time_diff * * Calculates the time from time2 to time1, assuming time1 is later than time2. * The diff will always be positive, so the return value should be checked * to determine if time1 was earlier than time2. * * Returns 1 if the time1 is less than or equal to time2, otherwise 0. */

 * Returns 1 if the time1 is less than or equal to time2, otherwise 0.
 */
int
iperf_time_diff(struct iperf_time *time1, struct iperf_time *time2, struct iperf_time *diff)
{
    int past = 0;
    int cmp = 0;

    cmp = iperf_time_compare(time1, time2);
    if (cmp == 0) {
        diff->secs = 0;
        diff->usecs = 0;
        past = 1;
    }
    else if (cmp == 1) {
        diff->secs = time1->secs - time2->secs;
        diff->usecs = time1->usecs;
        if (diff->usecs < time2->usecs) {
            diff->secs -= 1;
            diff->usecs += 1000000;
        }
        diff->usecs = diff->usecs - time2->usecs;
    } else {
        diff->secs = time2->secs - time1->secs;
        diff->usecs = time2->usecs;
        if (diff->usecs < time1->usecs) {
            diff->secs -= 1;
            diff->usecs += 1000000;
        }
        diff->usecs = diff->usecs - time1->usecs;
        past = 1;
    }

    return past;
}