src/libstd/sys/unix/helper_signal.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 use libc;
  12 use os;
  13
  14 use sys::fs::FileDesc;
  15
  16 pub type signal = libc::c_int;
  17
  18 pub fn new() -> (signal, signal) {
  19     let os::Pipe { reader, writer } = unsafe { os::pipe().unwrap() };
  20     (reader, writer)
  21 }
  22
  23 pub fn signal(fd: libc::c_int) {
  24     FileDesc::new(fd, false).write(&[0]).ok().unwrap();
  25 }
  26
  27 pub fn close(fd: libc::c_int) {
  28     let _fd = FileDesc::new(fd, true);
  29 }