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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use prelude::v1::*;
use io;
use libc;
use sys::cvt;
use sys::c;
use sys::handle::Handle;
////////////////////////////////////////////////////////////////////////////////
// Anonymous pipes
////////////////////////////////////////////////////////////////////////////////
pub struct AnonPipe {
inner: Handle,
}
pub fn anon_pipe() -> io::Result<(AnonPipe, AnonPipe)> {
let mut reader = libc::INVALID_HANDLE_VALUE;
let mut writer = libc::INVALID_HANDLE_VALUE;
try!(cvt(unsafe {
c::CreatePipe(&mut reader, &mut writer, 0 as *mut _, 0)
}));
let reader = Handle::new(reader);
let writer = Handle::new(writer);
Ok((AnonPipe { inner: reader }, AnonPipe { inner: writer }))
}
impl AnonPipe {
pub fn handle(&self) -> &Handle { &self.inner }
pub fn read(&self, buf: &mut [u8]) -> io::Result<usize> {
self.inner.read(buf)
}
pub fn write(&self, buf: &[u8]) -> io::Result<usize> {
self.inner.write(buf)
}
}
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