rb_w32_select     343 include/ruby/intern.h #define rb_fd_select(n, rfds, wfds, efds, timeout)	rb_w32_select((n), (rfds) ? ((rb_fdset_t*)(rfds))->fdset : NULL, (wfds) ? ((rb_fdset_t*)(wfds))->fdset : NULL, (efds) ? ((rb_fdset_t*)(efds))->fdset: NULL, (timeout))
rb_w32_select     247 include/ruby/win32.h extern int    WSAAPI rb_w32_select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
rb_w32_select     632 include/ruby/win32.h #define select(n, r, w, e, t)	rb_w32_select(n, r, w, e, t)