TIME_WRAP_AROUND
time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);