Merge pull request #22 from FenrirWolf/stdio

Implement synchronized stdio

1 files changed, 81 insertions, 0 deletions

diff --git a/ctr-std/src/sys/unix/stdio.rs b/ctr-std/src/sys/unix/stdio.rs
new file mode 100644
index 0000000..6d38b00
--- /dev/null
+++ b/ctr-std/src/sys/unix/stdio.rs
@@ -0,0 +1,81 @@
+// 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 io;
+use libc;
+use sys::fd::FileDesc;
+
+pub struct Stdin(());
+pub struct Stdout(());
+pub struct Stderr(());
+
+impl Stdin {
+    pub fn new() -> io::Result<Stdin> { Ok(Stdin(())) }
+
+    pub fn read(&self, data: &mut [u8]) -> io::Result<usize> {
+        let fd = FileDesc::new(libc::STDIN_FILENO);
+        let ret = fd.read(data);
+        fd.into_raw();
+        ret
+    }
+
+    pub fn read_to_end(&self, buf: &mut Vec<u8>) -> io::Result<usize> {
+        let fd = FileDesc::new(libc::STDIN_FILENO);
+        let ret = fd.read_to_end(buf);
+        fd.into_raw();
+        ret
+    }
+}
+
+impl Stdout {
+    pub fn new() -> io::Result<Stdout> { Ok(Stdout(())) }
+
+    pub fn write(&self, data: &[u8]) -> io::Result<usize> {
+        let fd = FileDesc::new(libc::STDOUT_FILENO);
+        let ret = fd.write(data);
+        fd.into_raw();
+        ret
+    }
+
+    pub fn flush(&self) -> io::Result<()> {
+        Ok(())
+    }
+}
+
+impl Stderr {
+    pub fn new() -> io::Result<Stderr> { Ok(Stderr(())) }
+
+    pub fn write(&self, data: &[u8]) -> io::Result<usize> {
+        let fd = FileDesc::new(libc::STDERR_FILENO);
+        let ret = fd.write(data);
+        fd.into_raw();
+        ret
+    }
+
+    pub fn flush(&self) -> io::Result<()> {
+        Ok(())
+    }
+}
+
+// FIXME: right now this raw stderr handle is used in a few places because
+//        std::io::stderr_raw isn't exposed, but once that's exposed this impl
+//        should go away
+impl io::Write for Stderr {
+    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
+        Stderr::write(self, data)
+    }
+
+    fn flush(&mut self) -> io::Result<()> {
+        Stderr::flush(self)
+    }
+}
+
+pub const EBADF_ERR: i32 = ::libc::EBADF as i32;
+pub const STDIN_BUF_SIZE: usize = ::sys_common::io::DEFAULT_BUF_SIZE;