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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 fortanix_sgx_abi::Fd;
use io;
use mem;
use sys_common::AsInner;
use super::abi::usercalls;
#[derive(Debug)]
pub struct FileDesc {
fd: Fd,
}
impl FileDesc {
pub fn new(fd: Fd) -> FileDesc {
FileDesc { fd: fd }
}
pub fn raw(&self) -> Fd { self.fd }
/// Extracts the actual filedescriptor without closing it.
pub fn into_raw(self) -> Fd {
let fd = self.fd;
mem::forget(self);
fd
}
pub fn read(&self, buf: &mut [u8]) -> io::Result<usize> {
usercalls::read(self.fd, buf)
}
pub fn write(&self, buf: &[u8]) -> io::Result<usize> {
usercalls::write(self.fd, buf)
}
pub fn flush(&self) -> io::Result<()> {
usercalls::flush(self.fd)
}
}
impl AsInner<Fd> for FileDesc {
fn as_inner(&self) -> &Fd { &self.fd }
}
impl Drop for FileDesc {
fn drop(&mut self) {
usercalls::close(self.fd)
}
}
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