UMTX_OP_WAIT. Upper 16bits is enough to hold a clock id, and lower 16bits is used to pass flags. The change saves a clock_gettime() syscall from libthr.
UMTX_OP_WAIT. Upper 16bits is enough to hold a clock id, and lower 16bits is used to pass flags. The change saves a clock_gettime() syscall from libthr.