pipe 6943 ext/nkf/nkf-utf8/nkf.c if (pipe(fds) < 0 || (pid = fork()) < 0){
pipe 34 goruby.c if ((isatty(0) && isatty(1) && isatty(2)) && (pipe(rw) == 0)) {
pipe 336 io.c ret = pipe(fildes);
pipe 340 io.c ret = pipe(fildes);
pipe 343 io.c ret = pipe(fildes);
pipe 2211 ruby.c if (pipe(fds) == 0) {
pipe 2220 ruby.c if (pipe(fds) == 0) {