timersub 124 third_party/libevent/evutil.h #define evutil_timersub(tvp, uvp, vvp) timersub((tvp), (uvp), (vvp)) timersub 2381 third_party/libusb/src/libusb/io.c timersub(next_timeout, &cur_tv, tv); timersub 115 third_party/libusb/src/libusb/os/poll_windows.h #if !defined(timersub) timersub 197 third_party/libusb/src/libusb/os/threads_windows.c timersub(&targ_time, &cur_time, &delta_time);