Update for latest nightly 2018-06-09 (#70)

* Update for latest nightly 2018-06-09
* We now have a proper horizon os and sys modules in libstd

1 files changed, 187 insertions, 0 deletions

diff --git a/ctr-std/src/sys/redox/ext/process.rs b/ctr-std/src/sys/redox/ext/process.rs
new file mode 100644
index 0000000..cfb6d5f
--- /dev/null
+++ b/ctr-std/src/sys/redox/ext/process.rs
@@ -0,0 +1,187 @@
+// Copyright 2016 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.
+
+//! Redox-specific extensions to primitives in the `std::process` module.
+
+#![stable(feature = "rust1", since = "1.0.0")]
+
+use io;
+use os::unix::io::{FromRawFd, RawFd, AsRawFd, IntoRawFd};
+use process;
+use sys;
+use sys_common::{AsInnerMut, AsInner, FromInner, IntoInner};
+
+/// Redox-specific extensions to the [`process::Command`] builder,
+///
+/// [`process::Command`]: ../../../../std/process/struct.Command.html
+#[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: u32) -> &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: u32) -> &mut process::Command;
+
+    /// Schedules a closure to be run just before the `exec` function is
+    /// invoked.
+    ///
+    /// The closure is allowed to return an I/O error whose OS error code will
+    /// be communicated back to the parent and returned as an error from when
+    /// the spawn was requested.
+    ///
+    /// Multiple closures can be registered and they will be called in order of
+    /// their registration. If a closure returns `Err` then no further closures
+    /// will be called and the spawn operation will immediately return with a
+    /// failure.
+    ///
+    /// # Notes
+    ///
+    /// This closure will be run in the context of the child process after a
+    /// `fork`. This primarily means that any modifications made to memory on
+    /// behalf of this closure will **not** be visible to the parent process.
+    /// This is often a very constrained environment where normal operations
+    /// like `malloc` or acquiring a mutex are not guaranteed to work (due to
+    /// other threads perhaps still running when the `fork` was run).
+    ///
+    /// When this closure is run, aspects such as the stdio file descriptors and
+    /// working directory have successfully been changed, so output to these
+    /// locations may not appear where intended.
+    #[stable(feature = "process_exec", since = "1.15.0")]
+    fn before_exec<F>(&mut self, f: F) -> &mut process::Command
+        where F: FnMut() -> io::Result<()> + Send + Sync + 'static;
+
+    /// Performs all the required setup by this `Command`, followed by calling
+    /// the `execvp` syscall.
+    ///
+    /// On success this function will not return, and otherwise it will return
+    /// an error indicating why the exec (or another part of the setup of the
+    /// `Command`) failed.
+    ///
+    /// This function, unlike `spawn`, will **not** `fork` the process to create
+    /// a new child. Like spawn, however, the default behavior for the stdio
+    /// descriptors will be to inherited from the current process.
+    ///
+    /// # Notes
+    ///
+    /// The process may be in a "broken state" if this function returns in
+    /// error. For example the working directory, environment variables, signal
+    /// handling settings, various user/group information, or aspects of stdio
+    /// file descriptors may have changed. If a "transactional spawn" is
+    /// required to gracefully handle errors it is recommended to use the
+    /// cross-platform `spawn` instead.
+    #[stable(feature = "process_exec2", since = "1.9.0")]
+    fn exec(&mut self) -> io::Error;
+}
+
+#[stable(feature = "rust1", since = "1.0.0")]
+impl CommandExt for process::Command {
+    fn uid(&mut self, id: u32) -> &mut process::Command {
+        self.as_inner_mut().uid(id);
+        self
+    }
+
+    fn gid(&mut self, id: u32) -> &mut process::Command {
+        self.as_inner_mut().gid(id);
+        self
+    }
+
+    fn before_exec<F>(&mut self, f: F) -> &mut process::Command
+        where F: FnMut() -> io::Result<()> + Send + Sync + 'static
+    {
+        self.as_inner_mut().before_exec(Box::new(f));
+        self
+    }
+
+    fn exec(&mut self) -> io::Error {
+        self.as_inner_mut().exec(sys::process::Stdio::Inherit)
+    }
+}
+
+/// Redox-specific extensions to [`process::ExitStatus`].
+///
+/// [`process::ExitStatus`]: ../../../../std/process/struct.ExitStatus.html
+#[stable(feature = "rust1", since = "1.0.0")]
+pub trait ExitStatusExt {
+    /// Creates a new `ExitStatus` from the raw underlying `i32` return value of
+    /// a process.
+    #[stable(feature = "exit_status_from", since = "1.12.0")]
+    fn from_raw(raw: i32) -> Self;
+
+    /// 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 from_raw(raw: i32) -> Self {
+        process::ExitStatus::from_inner(From::from(raw))
+    }
+
+    fn signal(&self) -> Option<i32> {
+        self.as_inner().signal()
+    }
+}
+
+#[stable(feature = "process_extensions", since = "1.2.0")]
+impl FromRawFd for process::Stdio {
+    unsafe fn from_raw_fd(fd: RawFd) -> process::Stdio {
+        let fd = sys::fd::FileDesc::new(fd);
+        let io = sys::process::Stdio::Fd(fd);
+        process::Stdio::from_inner(io)
+    }
+}
+
+#[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()
+    }
+}
+
+#[stable(feature = "into_raw_os", since = "1.4.0")]
+impl IntoRawFd for process::ChildStdin {
+    fn into_raw_fd(self) -> RawFd {
+        self.into_inner().into_fd().into_raw()
+    }
+}
+
+#[stable(feature = "into_raw_os", since = "1.4.0")]
+impl IntoRawFd for process::ChildStdout {
+    fn into_raw_fd(self) -> RawFd {
+        self.into_inner().into_fd().into_raw()
+    }
+}
+
+#[stable(feature = "into_raw_os", since = "1.4.0")]
+impl IntoRawFd for process::ChildStderr {
+    fn into_raw_fd(self) -> RawFd {
+        self.into_inner().into_fd().into_raw()
+    }
+}