+ struct timespec ts_stop, ts_res;
+
+ clock_gettime(CLOCK_MONOTONIC_RAW, &ts_stop);
+ ts_res.tv_sec = ts_stop.tv_sec - s->ts_start.tv_sec;
+ ts_res.tv_nsec = ts_stop.tv_nsec - s->ts_start.tv_nsec;
+ if (ts_res.tv_nsec < 0) {
+ --ts_res.tv_sec;
+ ts_res.tv_nsec += 1000000000;
+ }