94d71f8836
This is an implementation of RFC 899 and adds stdio functionality to the new
`std::io` module. Details of the API can be found on the RFC, but from a high
level:
* `io::{stdin, stdout, stderr}` constructors are now available. There are also
`*_raw` variants for unbuffered and unlocked access.
* All handles are globally shared (excluding raw variants).
* The stderr handle is no longer buffered.
* All handles can be explicitly locked (excluding the raw variants).
The `print!` and `println!` machinery has not yet been hooked up to these
streams just yet. The `std::fmt::output` module has also not yet been
implemented as part of this commit.
53 lines
1.3 KiB
Rust
53 lines
1.3 KiB
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use prelude::v1::*;
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use io;
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use libc;
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use sys::fd::FileDesc;
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pub struct Stdin(());
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pub struct Stdout(());
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pub struct Stderr(());
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impl Stdin {
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pub fn new() -> Stdin { Stdin(()) }
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pub fn read(&self, data: &mut [u8]) -> io::Result<usize> {
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let fd = FileDesc::new(libc::STDIN_FILENO);
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let ret = fd.read(data);
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fd.into_raw();
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return ret;
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}
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}
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impl Stdout {
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pub fn new() -> Stdout { Stdout(()) }
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pub fn write(&self, data: &[u8]) -> io::Result<usize> {
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let fd = FileDesc::new(libc::STDOUT_FILENO);
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let ret = fd.write(data);
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fd.into_raw();
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return ret;
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}
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}
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impl Stderr {
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pub fn new() -> Stderr { Stderr(()) }
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pub fn write(&self, data: &[u8]) -> io::Result<usize> {
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let fd = FileDesc::new(libc::STDERR_FILENO);
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let ret = fd.write(data);
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fd.into_raw();
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return ret;
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}
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}
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