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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.
//! Unix-specific extensions to primitives in the `std::process` module.
#![stable(feature = "rust1", since = "1.0.0")]
use os::unix::raw::{uid_t, gid_t};
use os::unix::io::{FromRawFd, RawFd, AsRawFd, IntoRawFd};
use prelude::v1::*;
use process;
use sys;
use sys_common::{AsInnerMut, AsInner, FromInner, IntoInner};
/// Unix-specific extensions to the `std::process::Command` builder
#[stable(feature = "rust1", since = "1.0.0")]
pub trait CommandExt {
/// Sets the child process's user id. This translates to a
/// `setuid` call in the child process. Failure in the `setuid`
/// call will cause the spawn to fail.
#[stable(feature = "rust1", since = "1.0.0")]
fn uid(&mut self, id: uid_t) -> &mut process::Command;
/// Similar to `uid`, but sets the group id of the child process. This has
/// the same semantics as the `uid` field.
#[stable(feature = "rust1", since = "1.0.0")]
fn gid(&mut self, id: gid_t) -> &mut process::Command;
}
#[stable(feature = "rust1", since = "1.0.0")]
impl CommandExt for process::Command {
fn uid(&mut self, id: uid_t) -> &mut process::Command {
self.as_inner_mut().uid = Some(id);
self
}
fn gid(&mut self, id: gid_t) -> &mut process::Command {
self.as_inner_mut().gid = Some(id);
self
}
}
/// Unix-specific extensions to `std::process::ExitStatus`
#[stable(feature = "rust1", since = "1.0.0")]
pub trait ExitStatusExt {
/// If the process was terminated by a signal, returns that signal.
#[stable(feature = "rust1", since = "1.0.0")]
fn signal(&self) -> Option<i32>;
}
#[stable(feature = "rust1", since = "1.0.0")]
impl ExitStatusExt for process::ExitStatus {
fn signal(&self) -> Option<i32> {
match *self.as_inner() {
sys::process::ExitStatus::Signal(s) => Some(s),
_ => None
}
}
}
#[stable(feature = "process_extensions", since = "1.2.0")]
impl FromRawFd for process::Stdio {
unsafe fn from_raw_fd(fd: RawFd) -> process::Stdio {
process::Stdio::from_inner(sys::fd::FileDesc::new(fd))
}
}
#[stable(feature = "process_extensions", since = "1.2.0")]
impl AsRawFd for process::ChildStdin {
fn as_raw_fd(&self) -> RawFd {
self.as_inner().fd().raw()
}
}
#[stable(feature = "process_extensions", since = "1.2.0")]
impl AsRawFd for process::ChildStdout {
fn as_raw_fd(&self) -> RawFd {
self.as_inner().fd().raw()
}
}
#[stable(feature = "process_extensions", since = "1.2.0")]
impl AsRawFd for process::ChildStderr {
fn as_raw_fd(&self) -> RawFd {
self.as_inner().fd().raw()
}
}
impl IntoRawFd for process::ChildStdin {
fn into_raw_fd(self) -> RawFd {
self.into_inner().into_fd().into_raw()
}
}
impl IntoRawFd for process::ChildStdout {
fn into_raw_fd(self) -> RawFd {
self.into_inner().into_fd().into_raw()
}
}
impl IntoRawFd for process::ChildStderr {
fn into_raw_fd(self) -> RawFd {
self.into_inner().into_fd().into_raw()
}
}
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