FD_ISSET 612 include/ruby/win32.h #undef FD_ISSET FD_ISSET 613 include/ruby/win32.h #define FD_ISSET(f, s) rb_w32_fdisset(f, s) FD_ISSET 3562 thread.c #undef FD_ISSET FD_ISSET 3567 thread.c #define FD_ISSET(i, f) rb_fd_isset((i), (f)) FD_ISSET 3615 thread.c #undef FD_ISSET FD_ISSET 3620 thread.c #define FD_ISSET(i, f) rb_fd_isset((i), (f)) FD_ISSET 2680 win32/win32.c #undef FD_ISSET