rb_wait_for_single_fd   16 ext/-test-/wait_for_single_fd/wait_for_single_fd.c     rc = rb_wait_for_single_fd(NUM2INT(fd), NUM2INT(events), tvp);
rb_wait_for_single_fd   64 ext/io/wait/wait.c     int i = rb_wait_for_single_fd(fptr->fd, events, tv);
rb_wait_for_single_fd  227 ext/readline/readline.c             ret = rb_wait_for_single_fd(data.fd, RB_WAITFD_IN, NULL);
rb_wait_for_single_fd  247 ext/readline/readline.c     rb_wait_for_single_fd(fileno(rl_instream), RB_WAITFD_IN, NULL);
rb_wait_for_single_fd  392 ext/socket/init.c     revents = rb_wait_for_single_fd(fd, RB_WAITFD_IN|RB_WAITFD_OUT, NULL);
rb_wait_for_single_fd  148 include/ruby/io.h int rb_wait_for_single_fd(int fd, int events, struct timeval *tv);
rb_wait_for_single_fd 10111 io.c           	    ret = rb_wait_for_single_fd(stp->src_fd, RB_WAITFD_IN, NULL);
rb_wait_for_single_fd 3721 thread.c           result = rb_wait_for_single_fd(fd, events, NULL);