fdset 178 lib/tty/tty.c fd_set fdset; fdset 185 lib/tty/tty.c FD_ZERO (&fdset); fdset 186 lib/tty/tty.c FD_SET (sigwinch_pipe[0], &fdset); fdset 188 lib/tty/tty.c while ((ok = select (sigwinch_pipe[0] + 1, &fdset, NULL, NULL, &timeout)) < 0) fdset 195 lib/tty/tty.c return (ok != 0 && FD_ISSET (sigwinch_pipe[0], &fdset));