+ int ret;
+ struct bt_ctf_clock_value *clock_value;
+ int64_t ts_nsec = 0; /* add configurable offset */
+ int64_t ts_sec = 0; /* add configurable offset */
+ uint64_t ts_sec_abs, ts_nsec_abs;
+ bool is_negative;
+
+ clock_value = bt_ctf_event_get_clock_value(event, clock);
+ if (!clock_value) {
+ fputs("??:??:??.?????????", text->out);
+ return;
+ }
+
+ ret = bt_ctf_clock_value_get_value_ns_from_epoch(clock_value, &ts_nsec);
+ bt_put(clock_value);
+ if (ret) {
+ fprintf(text->out, "Error");
+ return;
+ }
+
+ ts_sec += ts_nsec / NSEC_PER_SEC;
+ ts_nsec = ts_nsec % NSEC_PER_SEC;
+ if (ts_sec >= 0 && ts_nsec >= 0) {
+ is_negative = false;
+ ts_sec_abs = ts_sec;
+ ts_nsec_abs = ts_nsec;
+ } else if (ts_sec > 0 && ts_nsec < 0) {
+ is_negative = false;
+ ts_sec_abs = ts_sec - 1;
+ ts_nsec_abs = NSEC_PER_SEC + ts_nsec;
+ } else if (ts_sec == 0 && ts_nsec < 0) {
+ is_negative = true;
+ ts_sec_abs = ts_sec;
+ ts_nsec_abs = -ts_nsec;
+ } else if (ts_sec < 0 && ts_nsec > 0) {
+ is_negative = true;
+ ts_sec_abs = -(ts_sec + 1);
+ ts_nsec_abs = NSEC_PER_SEC - ts_nsec;
+ } else if (ts_sec < 0 && ts_nsec == 0) {
+ is_negative = true;
+ ts_sec_abs = -ts_sec;
+ ts_nsec_abs = ts_nsec;
+ } else { /* (ts_sec < 0 && ts_nsec < 0) */
+ is_negative = true;
+ ts_sec_abs = -ts_sec;
+ ts_nsec_abs = -ts_nsec;
+ }
+
+ if (/*!opt_clock_seconds*/true) {
+ struct tm tm;
+ time_t time_s = (time_t) ts_sec_abs;
+
+ if (is_negative) {
+ fprintf(stderr, "[warning] Fallback to [sec.ns] to print negative time value. Use --clock-seconds.\n");
+ goto seconds;
+ }