rb_cloexec_pipe 565 include/ruby/intern.h int rb_cloexec_pipe(int fildes[2]); rb_cloexec_pipe 5733 io.c ret = rb_cloexec_pipe(pipes); rb_cloexec_pipe 5736 io.c ret = rb_cloexec_pipe(pipes); rb_cloexec_pipe 1395 thread_pthread.c err = rb_cloexec_pipe(pipes);