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-rw-r--r--mk/crates.mk4
-rw-r--r--src/driver/driver.rs7
-rw-r--r--src/libnative/io/file.rs995
-rw-r--r--src/libnative/io/file_unix.rs573
-rw-r--r--src/libnative/io/file_win32.rs517
-rw-r--r--src/libnative/io/mod.rs36
-rw-r--r--src/libnative/io/net.rs19
-rw-r--r--src/libnative/io/pipe_unix.rs4
-rw-r--r--src/libnative/io/timer_helper.rs3
-rw-r--r--src/libnative/io/timer_other.rs2
-rw-r--r--src/libnative/io/timer_timerfd.rs2
-rw-r--r--src/libnative/lib.rs1
-rw-r--r--src/libstd/io/fs.rs287
-rw-r--r--src/libstd/io/net/unix.rs16
-rw-r--r--src/libstd/io/signal.rs23
-rw-r--r--src/libstd/libc.rs22
-rw-r--r--src/libstd/path/posix.rs4
-rw-r--r--src/libstd/path/windows.rs4
-rw-r--r--src/libstd/unstable/dynamic_lib.rs4
-rw-r--r--src/libstd/vec.rs2
20 files changed, 1346 insertions, 1179 deletions
diff --git a/mk/crates.mk b/mk/crates.mk
index 09b1dd69910..45b6ed1a058 100644
--- a/mk/crates.mk
+++ b/mk/crates.mk
@@ -81,8 +81,8 @@ DEPS_test := std extra collections getopts serialize term
 DEPS_time := std serialize
 
 TOOL_DEPS_compiletest := test green rustuv getopts
-TOOL_DEPS_rustdoc := rustdoc green rustuv
-TOOL_DEPS_rustc := rustc green rustuv
+TOOL_DEPS_rustdoc := rustdoc native
+TOOL_DEPS_rustc := rustc native
 TOOL_SOURCE_compiletest := $(S)src/compiletest/compiletest.rs
 TOOL_SOURCE_rustdoc := $(S)src/driver/driver.rs
 TOOL_SOURCE_rustc := $(S)src/driver/driver.rs
diff --git a/src/driver/driver.rs b/src/driver/driver.rs
index ca462fc7a39..0ceb12064b0 100644
--- a/src/driver/driver.rs
+++ b/src/driver/driver.rs
@@ -8,10 +8,15 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#[no_uv];
+
 #[cfg(rustdoc)]
 extern crate this = "rustdoc";
 
 #[cfg(rustc)]
 extern crate this = "rustc";
 
-fn main() { this::main() }
+extern crate native;
+
+#[start]
+fn start(argc: int, argv: **u8) -> int { native::start(argc, argv, this::main) }
diff --git a/src/libnative/io/file.rs b/src/libnative/io/file.rs
deleted file mode 100644
index 27430ddee97..00000000000
--- a/src/libnative/io/file.rs
+++ /dev/null
@@ -1,995 +0,0 @@
-// Copyright 2013-2014 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.
-
-//! Blocking posix-based file I/O
-
-#[allow(non_camel_case_types)];
-
-use std::sync::arc::UnsafeArc;
-use std::c_str::CString;
-use std::io::IoError;
-use std::io;
-use std::libc::{c_int, c_void};
-use std::libc;
-use std::mem;
-use std::os;
-use std::rt::rtio;
-use std::vec;
-
-use io::{IoResult, retry};
-
-#[cfg(windows)] use std::os::win32::{as_utf16_p, fill_utf16_buf_and_decode};
-#[cfg(windows)] use std::ptr;
-#[cfg(windows)] use std::str;
-
-pub fn keep_going(data: &[u8], f: |*u8, uint| -> i64) -> i64 {
-    #[cfg(windows)] static eintr: int = 0; // doesn't matter
-    #[cfg(not(windows))] static eintr: int = libc::EINTR as int;
-
-    let origamt = data.len();
-    let mut data = data.as_ptr();
-    let mut amt = origamt;
-    while amt > 0 {
-        let mut ret;
-        loop {
-            ret = f(data, amt);
-            if cfg!(windows) { break } // windows has no eintr
-            // if we get an eintr, then try again
-            if ret != -1 || os::errno() as int != eintr { break }
-        }
-        if ret == 0 {
-            break
-        } else if ret != -1 {
-            amt -= ret as uint;
-            data = unsafe { data.offset(ret as int) };
-        } else {
-            return ret;
-        }
-    }
-    return (origamt - amt) as i64;
-}
-
-pub type fd_t = libc::c_int;
-
-struct Inner {
-    fd: fd_t,
-    close_on_drop: bool,
-}
-
-pub struct FileDesc {
-    priv inner: UnsafeArc<Inner>
-}
-
-impl FileDesc {
-    /// Create a `FileDesc` from an open C file descriptor.
-    ///
-    /// The `FileDesc` will take ownership of the specified file descriptor and
-    /// close it upon destruction if the `close_on_drop` flag is true, otherwise
-    /// it will not close the file descriptor when this `FileDesc` is dropped.
-    ///
-    /// Note that all I/O operations done on this object will be *blocking*, but
-    /// they do not require the runtime to be active.
-    pub fn new(fd: fd_t, close_on_drop: bool) -> FileDesc {
-        FileDesc { inner: UnsafeArc::new(Inner {
-            fd: fd,
-            close_on_drop: close_on_drop
-        }) }
-    }
-
-    // FIXME(#10465) these functions should not be public, but anything in
-    //               native::io wanting to use them is forced to have all the
-    //               rtio traits in scope
-    pub fn inner_read(&mut self, buf: &mut [u8]) -> Result<uint, IoError> {
-        #[cfg(windows)] type rlen = libc::c_uint;
-        #[cfg(not(windows))] type rlen = libc::size_t;
-        let ret = retry(|| unsafe {
-            libc::read(self.fd(),
-                       buf.as_mut_ptr() as *mut libc::c_void,
-                       buf.len() as rlen) as libc::c_int
-        });
-        if ret == 0 {
-            Err(io::standard_error(io::EndOfFile))
-        } else if ret < 0 {
-            Err(super::last_error())
-        } else {
-            Ok(ret as uint)
-        }
-    }
-    pub fn inner_write(&mut self, buf: &[u8]) -> Result<(), IoError> {
-        #[cfg(windows)] type wlen = libc::c_uint;
-        #[cfg(not(windows))] type wlen = libc::size_t;
-        let ret = keep_going(buf, |buf, len| {
-            unsafe {
-                libc::write(self.fd(), buf as *libc::c_void, len as wlen) as i64
-            }
-        });
-        if ret < 0 {
-            Err(super::last_error())
-        } else {
-            Ok(())
-        }
-    }
-
-    pub fn fd(&self) -> fd_t {
-        // This unsafety is fine because we're just reading off the file
-        // descriptor, no one is modifying this.
-        unsafe { (*self.inner.get()).fd }
-    }
-}
-
-impl io::Reader for FileDesc {
-    fn read(&mut self, buf: &mut [u8]) -> io::IoResult<uint> {
-        self.inner_read(buf)
-    }
-}
-
-impl io::Writer for FileDesc {
-    fn write(&mut self, buf: &[u8]) -> io::IoResult<()> {
-        self.inner_write(buf)
-    }
-}
-
-impl rtio::RtioFileStream for FileDesc {
-    fn read(&mut self, buf: &mut [u8]) -> Result<int, IoError> {
-        self.inner_read(buf).map(|i| i as int)
-    }
-    fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
-        self.inner_write(buf)
-    }
-    fn pread(&mut self, buf: &mut [u8], offset: u64) -> Result<int, IoError> {
-        return os_pread(self.fd(), buf.as_ptr(), buf.len(), offset);
-
-        #[cfg(windows)]
-        fn os_pread(fd: c_int, buf: *u8, amt: uint, offset: u64) -> IoResult<int> {
-            unsafe {
-                let mut overlap: libc::OVERLAPPED = mem::init();
-                let handle = libc::get_osfhandle(fd) as libc::HANDLE;
-                let mut bytes_read = 0;
-                overlap.Offset = offset as libc::DWORD;
-                overlap.OffsetHigh = (offset >> 32) as libc::DWORD;
-
-                match libc::ReadFile(handle, buf as libc::LPVOID,
-                                   amt as libc::DWORD,
-                                   &mut bytes_read, &mut overlap) {
-                    0 => Err(super::last_error()),
-                    _ => Ok(bytes_read as int)
-                }
-            }
-        }
-
-        #[cfg(unix)]
-        fn os_pread(fd: c_int, buf: *u8, amt: uint, offset: u64) -> IoResult<int> {
-            match retry(|| unsafe {
-                libc::pread(fd, buf as *libc::c_void, amt as libc::size_t,
-                            offset as libc::off_t) as libc::c_int
-            }) {
-                -1 => Err(super::last_error()),
-                n => Ok(n as int)
-            }
-        }
-    }
-    fn pwrite(&mut self, buf: &[u8], offset: u64) -> Result<(), IoError> {
-        return os_pwrite(self.fd(), buf.as_ptr(), buf.len(), offset);
-
-        #[cfg(windows)]
-        fn os_pwrite(fd: c_int, buf: *u8, amt: uint, offset: u64) -> IoResult<()> {
-            unsafe {
-                let mut overlap: libc::OVERLAPPED = mem::init();
-                let handle = libc::get_osfhandle(fd) as libc::HANDLE;
-                overlap.Offset = offset as libc::DWORD;
-                overlap.OffsetHigh = (offset >> 32) as libc::DWORD;
-
-                match libc::WriteFile(handle, buf as libc::LPVOID,
-                                      amt as libc::DWORD,
-                                      ptr::mut_null(), &mut overlap) {
-                    0 => Err(super::last_error()),
-                    _ => Ok(()),
-                }
-            }
-        }
-
-        #[cfg(unix)]
-        fn os_pwrite(fd: c_int, buf: *u8, amt: uint, offset: u64) -> IoResult<()> {
-            super::mkerr_libc(retry(|| unsafe {
-                libc::pwrite(fd, buf as *libc::c_void, amt as libc::size_t,
-                             offset as libc::off_t)
-            } as c_int))
-        }
-    }
-    #[cfg(windows)]
-    fn seek(&mut self, pos: i64, style: io::SeekStyle) -> Result<u64, IoError> {
-        let whence = match style {
-            io::SeekSet => libc::FILE_BEGIN,
-            io::SeekEnd => libc::FILE_END,
-            io::SeekCur => libc::FILE_CURRENT,
-        };
-        unsafe {
-            let handle = libc::get_osfhandle(self.fd()) as libc::HANDLE;
-            let mut newpos = 0;
-            match libc::SetFilePointerEx(handle, pos, &mut newpos, whence) {
-                0 => Err(super::last_error()),
-                _ => Ok(newpos as u64),
-            }
-        }
-    }
-    #[cfg(unix)]
-    fn seek(&mut self, pos: i64, whence: io::SeekStyle) -> Result<u64, IoError> {
-        let whence = match whence {
-            io::SeekSet => libc::SEEK_SET,
-            io::SeekEnd => libc::SEEK_END,
-            io::SeekCur => libc::SEEK_CUR,
-        };
-        let n = unsafe { libc::lseek(self.fd(), pos as libc::off_t, whence) };
-        if n < 0 {
-            Err(super::last_error())
-        } else {
-            Ok(n as u64)
-        }
-    }
-    fn tell(&self) -> Result<u64, IoError> {
-        let n = unsafe { libc::lseek(self.fd(), 0, libc::SEEK_CUR) };
-        if n < 0 {
-            Err(super::last_error())
-        } else {
-            Ok(n as u64)
-        }
-    }
-    fn fsync(&mut self) -> Result<(), IoError> {
-        return os_fsync(self.fd());
-
-        #[cfg(windows)]
-        fn os_fsync(fd: c_int) -> IoResult<()> {
-            super::mkerr_winbool(unsafe {
-                let handle = libc::get_osfhandle(fd);
-                libc::FlushFileBuffers(handle as libc::HANDLE)
-            })
-        }
-        #[cfg(unix)]
-        fn os_fsync(fd: c_int) -> IoResult<()> {
-            super::mkerr_libc(retry(|| unsafe { libc::fsync(fd) }))
-        }
-    }
-    #[cfg(windows)]
-    fn datasync(&mut self) -> Result<(), IoError> { return self.fsync(); }
-
-    #[cfg(not(windows))]
-    fn datasync(&mut self) -> Result<(), IoError> {
-        return super::mkerr_libc(os_datasync(self.fd()));
-
-        #[cfg(target_os = "macos")]
-        fn os_datasync(fd: c_int) -> c_int {
-            unsafe { libc::fcntl(fd, libc::F_FULLFSYNC) }
-        }
-        #[cfg(target_os = "linux")]
-        fn os_datasync(fd: c_int) -> c_int {
-            retry(|| unsafe { libc::fdatasync(fd) })
-        }
-        #[cfg(not(target_os = "macos"), not(target_os = "linux"))]
-        fn os_datasync(fd: c_int) -> c_int {
-            retry(|| unsafe { libc::fsync(fd) })
-        }
-    }
-
-    #[cfg(windows)]
-    fn truncate(&mut self, offset: i64) -> Result<(), IoError> {
-        let orig_pos = match self.tell() { Ok(i) => i, Err(e) => return Err(e) };
-        match self.seek(offset, io::SeekSet) {
-            Ok(_) => {}, Err(e) => return Err(e),
-        };
-        let ret = unsafe {
-            let handle = libc::get_osfhandle(self.fd()) as libc::HANDLE;
-            match libc::SetEndOfFile(handle) {
-                0 => Err(super::last_error()),
-                _ => Ok(())
-            }
-        };
-        let _ = self.seek(orig_pos as i64, io::SeekSet);
-        return ret;
-    }
-    #[cfg(unix)]
-    fn truncate(&mut self, offset: i64) -> Result<(), IoError> {
-        super::mkerr_libc(retry(|| unsafe {
-            libc::ftruncate(self.fd(), offset as libc::off_t)
-        }))
-    }
-}
-
-impl rtio::RtioPipe for FileDesc {
-    fn read(&mut self, buf: &mut [u8]) -> Result<uint, IoError> {
-        self.inner_read(buf)
-    }
-    fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
-        self.inner_write(buf)
-    }
-    fn clone(&self) -> ~rtio::RtioPipe {
-        ~FileDesc { inner: self.inner.clone() } as ~rtio::RtioPipe
-    }
-}
-
-impl rtio::RtioTTY for FileDesc {
-    fn read(&mut self, buf: &mut [u8]) -> Result<uint, IoError> {
-        self.inner_read(buf)
-    }
-    fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
-        self.inner_write(buf)
-    }
-    fn set_raw(&mut self, _raw: bool) -> Result<(), IoError> {
-        Err(super::unimpl())
-    }
-    fn get_winsize(&mut self) -> Result<(int, int), IoError> {
-        Err(super::unimpl())
-    }
-    fn isatty(&self) -> bool { false }
-}
-
-impl Drop for Inner {
-    fn drop(&mut self) {
-        // closing stdio file handles makes no sense, so never do it. Also, note
-        // that errors are ignored when closing a file descriptor. The reason
-        // for this is that if an error occurs we don't actually know if the
-        // file descriptor was closed or not, and if we retried (for something
-        // like EINTR), we might close another valid file descriptor (opened
-        // after we closed ours.
-        if self.close_on_drop && self.fd > libc::STDERR_FILENO {
-            let n = unsafe { libc::close(self.fd) };
-            if n != 0 {
-                warn!("error {} when closing file descriptor {}", n, self.fd);
-            }
-        }
-    }
-}
-
-pub struct CFile {
-    priv file: *libc::FILE,
-    priv fd: FileDesc,
-}
-
-impl CFile {
-    /// Create a `CFile` from an open `FILE` pointer.
-    ///
-    /// The `CFile` takes ownership of the `FILE` pointer and will close it upon
-    /// destruction.
-    pub fn new(file: *libc::FILE) -> CFile {
-        CFile {
-            file: file,
-            fd: FileDesc::new(unsafe { libc::fileno(file) }, false)
-        }
-    }
-
-    pub fn flush(&mut self) -> Result<(), IoError> {
-        super::mkerr_libc(retry(|| unsafe { libc::fflush(self.file) }))
-    }
-}
-
-impl rtio::RtioFileStream for CFile {
-    fn read(&mut self, buf: &mut [u8]) -> Result<int, IoError> {
-        let ret = keep_going(buf, |buf, len| {
-            unsafe {
-                libc::fread(buf as *mut libc::c_void, 1, len as libc::size_t,
-                            self.file) as i64
-            }
-        });
-        if ret == 0 {
-            Err(io::standard_error(io::EndOfFile))
-        } else if ret < 0 {
-            Err(super::last_error())
-        } else {
-            Ok(ret as int)
-        }
-    }
-
-    fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
-        let ret = keep_going(buf, |buf, len| {
-            unsafe {
-                libc::fwrite(buf as *libc::c_void, 1, len as libc::size_t,
-                            self.file) as i64
-            }
-        });
-        if ret < 0 {
-            Err(super::last_error())
-        } else {
-            Ok(())
-        }
-    }
-
-    fn pread(&mut self, buf: &mut [u8], offset: u64) -> Result<int, IoError> {
-        self.flush().and_then(|()| self.fd.pread(buf, offset))
-    }
-    fn pwrite(&mut self, buf: &[u8], offset: u64) -> Result<(), IoError> {
-        self.flush().and_then(|()| self.fd.pwrite(buf, offset))
-    }
-    fn seek(&mut self, pos: i64, style: io::SeekStyle) -> Result<u64, IoError> {
-        let whence = match style {
-            io::SeekSet => libc::SEEK_SET,
-            io::SeekEnd => libc::SEEK_END,
-            io::SeekCur => libc::SEEK_CUR,
-        };
-        let n = unsafe { libc::fseek(self.file, pos as libc::c_long, whence) };
-        if n < 0 {
-            Err(super::last_error())
-        } else {
-            Ok(n as u64)
-        }
-    }
-    fn tell(&self) -> Result<u64, IoError> {
-        let ret = unsafe { libc::ftell(self.file) };
-        if ret < 0 {
-            Err(super::last_error())
-        } else {
-            Ok(ret as u64)
-        }
-    }
-    fn fsync(&mut self) -> Result<(), IoError> {
-        self.flush().and_then(|()| self.fd.fsync())
-    }
-    fn datasync(&mut self) -> Result<(), IoError> {
-        self.flush().and_then(|()| self.fd.fsync())
-    }
-    fn truncate(&mut self, offset: i64) -> Result<(), IoError> {
-        self.flush().and_then(|()| self.fd.truncate(offset))
-    }
-}
-
-impl Drop for CFile {
-    fn drop(&mut self) {
-        unsafe { let _ = libc::fclose(self.file); }
-    }
-}
-
-pub fn open(path: &CString, fm: io::FileMode, fa: io::FileAccess)
-        -> IoResult<FileDesc> {
-    let flags = match fm {
-        io::Open => 0,
-        io::Append => libc::O_APPEND,
-        io::Truncate => libc::O_TRUNC,
-    };
-    // Opening with a write permission must silently create the file.
-    let (flags, mode) = match fa {
-        io::Read => (flags | libc::O_RDONLY, 0),
-        io::Write => (flags | libc::O_WRONLY | libc::O_CREAT,
-                      libc::S_IRUSR | libc::S_IWUSR),
-        io::ReadWrite => (flags | libc::O_RDWR | libc::O_CREAT,
-                          libc::S_IRUSR | libc::S_IWUSR),
-    };
-
-    return match os_open(path, flags, mode) {
-        -1 => Err(super::last_error()),
-        fd => Ok(FileDesc::new(fd, true)),
-    };
-
-    #[cfg(windows)]
-    fn os_open(path: &CString, flags: c_int, mode: c_int) -> c_int {
-        as_utf16_p(path.as_str().unwrap(), |path| {
-            retry(|| unsafe { libc::wopen(path, flags, mode) })
-        })
-    }
-
-    #[cfg(unix)]
-    fn os_open(path: &CString, flags: c_int, mode: c_int) -> c_int {
-        retry(|| unsafe { libc::open(path.with_ref(|p| p), flags, mode) })
-    }
-}
-
-pub fn mkdir(p: &CString, mode: io::FilePermission) -> IoResult<()> {
-    return os_mkdir(p, mode as c_int);
-
-    #[cfg(windows)]
-    fn os_mkdir(p: &CString, _mode: c_int) -> IoResult<()> {
-        super::mkerr_winbool(unsafe {
-            // FIXME: turn mode into something useful? #2623
-            as_utf16_p(p.as_str().unwrap(), |buf| {
-                libc::CreateDirectoryW(buf, ptr::mut_null())
-            })
-        })
-    }
-
-    #[cfg(unix)]
-    fn os_mkdir(p: &CString, mode: c_int) -> IoResult<()> {
-        super::mkerr_libc(retry(|| unsafe {
-            libc::mkdir(p.with_ref(|p| p), mode as libc::mode_t)
-        }))
-    }
-}
-
-pub fn readdir(p: &CString) -> IoResult<~[Path]> {
-    fn prune(root: &CString, dirs: ~[Path]) -> ~[Path] {
-        let root = unsafe { CString::new(root.with_ref(|p| p), false) };
-        let root = Path::new(root);
-
-        dirs.move_iter().filter(|path| {
-            path.as_vec() != bytes!(".") && path.as_vec() != bytes!("..")
-        }).map(|path| root.join(path)).collect()
-    }
-
-    unsafe {
-        #[cfg(not(windows))]
-        unsafe fn get_list(p: &CString) -> IoResult<~[Path]> {
-            use std::libc::{dirent_t};
-            use std::libc::{opendir, readdir, closedir};
-            extern {
-                fn rust_list_dir_val(ptr: *dirent_t) -> *libc::c_char;
-            }
-            debug!("os::list_dir -- BEFORE OPENDIR");
-
-            let dir_ptr = p.with_ref(|buf| opendir(buf));
-
-            if dir_ptr as uint != 0 {
-                let mut paths = ~[];
-                debug!("os::list_dir -- opendir() SUCCESS");
-                let mut entry_ptr = readdir(dir_ptr);
-                while entry_ptr as uint != 0 {
-                    let cstr = CString::new(rust_list_dir_val(entry_ptr), false);
-                    paths.push(Path::new(cstr));
-                    entry_ptr = readdir(dir_ptr);
-                }
-                assert_eq!(closedir(dir_ptr), 0);
-                Ok(paths)
-            } else {
-                Err(super::last_error())
-            }
-        }
-
-        #[cfg(windows)]
-        unsafe fn get_list(p: &CString) -> IoResult<~[Path]> {
-            use std::libc::consts::os::extra::INVALID_HANDLE_VALUE;
-            use std::libc::{wcslen, free};
-            use std::libc::funcs::extra::kernel32::{
-                FindFirstFileW,
-                FindNextFileW,
-                FindClose,
-            };
-            use std::libc::types::os::arch::extra::HANDLE;
-            use os::win32::{
-                as_utf16_p
-            };
-            use rt::global_heap::malloc_raw;
-
-            #[nolink]
-            extern {
-                fn rust_list_dir_wfd_size() -> libc::size_t;
-                fn rust_list_dir_wfd_fp_buf(wfd: *libc::c_void) -> *u16;
-            }
-            let p = CString::new(p.with_ref(|p| p), false);
-            let p = Path::new(p);
-            let star = p.join("*");
-            as_utf16_p(star.as_str().unwrap(), |path_ptr| {
-                let wfd_ptr = malloc_raw(rust_list_dir_wfd_size() as uint);
-                let find_handle = FindFirstFileW(path_ptr, wfd_ptr as HANDLE);
-                if find_handle as libc::c_int != INVALID_HANDLE_VALUE {
-                    let mut paths = ~[];
-                    let mut more_files = 1 as libc::c_int;
-                    while more_files != 0 {
-                        let fp_buf = rust_list_dir_wfd_fp_buf(wfd_ptr as *c_void);
-                        if fp_buf as uint == 0 {
-                            fail!("os::list_dir() failure: got null ptr from wfd");
-                        }
-                        else {
-                            let fp_vec = vec::from_buf(
-                                fp_buf, wcslen(fp_buf) as uint);
-                            let fp_trimmed = str::truncate_utf16_at_nul(fp_vec);
-                            let fp_str = str::from_utf16(fp_trimmed)
-                                    .expect("rust_list_dir_wfd_fp_buf returned invalid UTF-16");
-                            paths.push(Path::new(fp_str));
-                        }
-                        more_files = FindNextFileW(find_handle, wfd_ptr as HANDLE);
-                    }
-                    assert!(FindClose(find_handle) != 0);
-                    free(wfd_ptr as *mut c_void);
-                    Ok(paths)
-                } else {
-                    Err(super::last_error())
-                }
-            })
-        }
-
-        get_list(p).map(|paths| prune(p, paths))
-    }
-}
-
-pub fn unlink(p: &CString) -> IoResult<()> {
-    return os_unlink(p);
-
-    #[cfg(windows)]
-    fn os_unlink(p: &CString) -> IoResult<()> {
-        super::mkerr_winbool(unsafe {
-            as_utf16_p(p.as_str().unwrap(), |buf| {
-                libc::DeleteFileW(buf)
-            })
-        })
-    }
-
-    #[cfg(unix)]
-    fn os_unlink(p: &CString) -> IoResult<()> {
-        super::mkerr_libc(retry(|| unsafe { libc::unlink(p.with_ref(|p| p)) }))
-    }
-}
-
-pub fn rename(old: &CString, new: &CString) -> IoResult<()> {
-    return os_rename(old, new);
-
-    #[cfg(windows)]
-    fn os_rename(old: &CString, new: &CString) -> IoResult<()> {
-        super::mkerr_winbool(unsafe {
-            as_utf16_p(old.as_str().unwrap(), |old| {
-                as_utf16_p(new.as_str().unwrap(), |new| {
-                    libc::MoveFileExW(old, new, libc::MOVEFILE_REPLACE_EXISTING)
-                })
-            })
-        })
-    }
-
-    #[cfg(unix)]
-    fn os_rename(old: &CString, new: &CString) -> IoResult<()> {
-        super::mkerr_libc(retry(|| unsafe {
-            libc::rename(old.with_ref(|p| p), new.with_ref(|p| p))
-        }))
-    }
-}
-
-pub fn chmod(p: &CString, mode: io::FilePermission) -> IoResult<()> {
-    return super::mkerr_libc(os_chmod(p, mode as c_int));
-
-    #[cfg(windows)]
-    fn os_chmod(p: &CString, mode: c_int) -> c_int {
-        unsafe {
-            as_utf16_p(p.as_str().unwrap(), |p| retry(|| {
-                libc::wchmod(p, mode)
-            }))
-        }
-    }
-
-    #[cfg(unix)]
-    fn os_chmod(p: &CString, mode: c_int) -> c_int {
-        retry(||unsafe { libc::chmod(p.with_ref(|p| p), mode as libc::mode_t) })
-    }
-}
-
-pub fn rmdir(p: &CString) -> IoResult<()> {
-    return super::mkerr_libc(os_rmdir(p));
-
-    #[cfg(windows)]
-    fn os_rmdir(p: &CString) -> c_int {
-        unsafe {
-            as_utf16_p(p.as_str().unwrap(), |p| retry(|| {
-                libc::wrmdir(p)
-            }))
-        }
-    }
-
-    #[cfg(unix)]
-    fn os_rmdir(p: &CString) -> c_int {
-        retry(|| unsafe { libc::rmdir(p.with_ref(|p| p)) })
-    }
-}
-
-pub fn chown(p: &CString, uid: int, gid: int) -> IoResult<()> {
-    return super::mkerr_libc(os_chown(p, uid, gid));
-
-    // libuv has this as a no-op, so seems like this should as well?
-    #[cfg(windows)]
-    fn os_chown(_p: &CString, _uid: int, _gid: int) -> c_int { 0 }
-
-    #[cfg(unix)]
-    fn os_chown(p: &CString, uid: int, gid: int) -> c_int {
-        retry(|| unsafe {
-            libc::chown(p.with_ref(|p| p), uid as libc::uid_t,
-                        gid as libc::gid_t)
-        })
-    }
-}
-
-pub fn readlink(p: &CString) -> IoResult<Path> {
-    return os_readlink(p);
-
-    // FIXME: I have a feeling that this reads intermediate symlinks as well.
-    #[cfg(windows)]
-    fn os_readlink(p: &CString) -> IoResult<Path> {
-        let handle = unsafe {
-            as_utf16_p(p.as_str().unwrap(), |p| {
-                libc::CreateFileW(p,
-                                  libc::GENERIC_READ,
-                                  libc::FILE_SHARE_READ,
-                                  ptr::mut_null(),
-                                  libc::OPEN_EXISTING,
-                                  libc::FILE_ATTRIBUTE_NORMAL,
-                                  ptr::mut_null())
-            })
-        };
-        if handle as int == libc::INVALID_HANDLE_VALUE as int {
-            return Err(super::last_error())
-        }
-        let ret = fill_utf16_buf_and_decode(|buf, sz| {
-            unsafe {
-                libc::GetFinalPathNameByHandleW(handle, buf as *u16, sz,
-                                                libc::VOLUME_NAME_NT)
-            }
-        });
-        let ret = match ret {
-            Some(s) => Ok(Path::new(s)),
-            None => Err(super::last_error()),
-        };
-        assert!(unsafe { libc::CloseHandle(handle) } != 0);
-        return ret;
-
-    }
-
-    #[cfg(unix)]
-    fn os_readlink(p: &CString) -> IoResult<Path> {
-        let p = p.with_ref(|p| p);
-        let mut len = unsafe { libc::pathconf(p, libc::_PC_NAME_MAX) };
-        if len == -1 {
-            len = 1024; // FIXME: read PATH_MAX from C ffi?
-        }
-        let mut buf = vec::with_capacity::<u8>(len as uint);
-        match retry(|| unsafe {
-            libc::readlink(p, buf.as_ptr() as *mut libc::c_char,
-                           len as libc::size_t) as libc::c_int
-        }) {
-            -1 => Err(super::last_error()),
-            n => {
-                assert!(n > 0);
-                unsafe { buf.set_len(n as uint); }
-                Ok(Path::new(buf))
-            }
-        }
-    }
-}
-
-pub fn symlink(src: &CString, dst: &CString) -> IoResult<()> {
-    return os_symlink(src, dst);
-
-    #[cfg(windows)]
-    fn os_symlink(src: &CString, dst: &CString) -> IoResult<()> {
-        super::mkerr_winbool(as_utf16_p(src.as_str().unwrap(), |src| {
-            as_utf16_p(dst.as_str().unwrap(), |dst| {
-                unsafe { libc::CreateSymbolicLinkW(dst, src, 0) }
-            }) as libc::BOOL
-        }))
-    }
-
-    #[cfg(unix)]
-    fn os_symlink(src: &CString, dst: &CString) -> IoResult<()> {
-        super::mkerr_libc(retry(|| unsafe {
-            libc::symlink(src.with_ref(|p| p), dst.with_ref(|p| p))
-        }))
-    }
-}
-
-pub fn link(src: &CString, dst: &CString) -> IoResult<()> {
-    return os_link(src, dst);
-
-    #[cfg(windows)]
-    fn os_link(src: &CString, dst: &CString) -> IoResult<()> {
-        super::mkerr_winbool(as_utf16_p(src.as_str().unwrap(), |src| {
-            as_utf16_p(dst.as_str().unwrap(), |dst| {
-                unsafe { libc::CreateHardLinkW(dst, src, ptr::mut_null()) }
-            })
-        }))
-    }
-
-    #[cfg(unix)]
-    fn os_link(src: &CString, dst: &CString) -> IoResult<()> {
-        super::mkerr_libc(retry(|| unsafe {
-            libc::link(src.with_ref(|p| p), dst.with_ref(|p| p))
-        }))
-    }
-}
-
-#[cfg(windows)]
-fn mkstat(stat: &libc::stat, path: &CString) -> io::FileStat {
-    let path = unsafe { CString::new(path.with_ref(|p| p), false) };
-    let kind = match (stat.st_mode as c_int) & libc::S_IFMT {
-        libc::S_IFREG => io::TypeFile,
-        libc::S_IFDIR => io::TypeDirectory,
-        libc::S_IFIFO => io::TypeNamedPipe,
-        libc::S_IFBLK => io::TypeBlockSpecial,
-        libc::S_IFLNK => io::TypeSymlink,
-        _ => io::TypeUnknown,
-    };
-
-    io::FileStat {
-        path: Path::new(path),
-        size: stat.st_size as u64,
-        kind: kind,
-        perm: (stat.st_mode) as io::FilePermission & io::AllPermissions,
-        created: stat.st_ctime as u64,
-        modified: stat.st_mtime as u64,
-        accessed: stat.st_atime as u64,
-        unstable: io::UnstableFileStat {
-            device: stat.st_dev as u64,
-            inode: stat.st_ino as u64,
-            rdev: stat.st_rdev as u64,
-            nlink: stat.st_nlink as u64,
-            uid: stat.st_uid as u64,
-            gid: stat.st_gid as u64,
-            blksize: 0,
-            blocks: 0,
-            flags: 0,
-            gen: 0,
-        }
-    }
-}
-
-#[cfg(unix)]
-fn mkstat(stat: &libc::stat, path: &CString) -> io::FileStat {
-    let path = unsafe { CString::new(path.with_ref(|p| p), false) };
-
-    // FileStat times are in milliseconds
-    fn mktime(secs: u64, nsecs: u64) -> u64 { secs * 1000 + nsecs / 1000000 }
-
-    let kind = match (stat.st_mode as c_int) & libc::S_IFMT {
-        libc::S_IFREG => io::TypeFile,
-        libc::S_IFDIR => io::TypeDirectory,
-        libc::S_IFIFO => io::TypeNamedPipe,
-        libc::S_IFBLK => io::TypeBlockSpecial,
-        libc::S_IFLNK => io::TypeSymlink,
-        _ => io::TypeUnknown,
-    };
-
-    #[cfg(not(target_os = "linux"), not(target_os = "android"))]
-    fn flags(stat: &libc::stat) -> u64 { stat.st_flags as u64 }
-    #[cfg(target_os = "linux")] #[cfg(target_os = "android")]
-    fn flags(_stat: &libc::stat) -> u64 { 0 }
-
-    #[cfg(not(target_os = "linux"), not(target_os = "android"))]
-    fn gen(stat: &libc::stat) -> u64 { stat.st_gen as u64 }
-    #[cfg(target_os = "linux")] #[cfg(target_os = "android")]
-    fn gen(_stat: &libc::stat) -> u64 { 0 }
-
-    io::FileStat {
-        path: Path::new(path),
-        size: stat.st_size as u64,
-        kind: kind,
-        perm: (stat.st_mode) as io::FilePermission & io::AllPermissions,
-        created: mktime(stat.st_ctime as u64, stat.st_ctime_nsec as u64),
-        modified: mktime(stat.st_mtime as u64, stat.st_mtime_nsec as u64),
-        accessed: mktime(stat.st_atime as u64, stat.st_atime_nsec as u64),
-        unstable: io::UnstableFileStat {
-            device: stat.st_dev as u64,
-            inode: stat.st_ino as u64,
-            rdev: stat.st_rdev as u64,
-            nlink: stat.st_nlink as u64,
-            uid: stat.st_uid as u64,
-            gid: stat.st_gid as u64,
-            blksize: stat.st_blksize as u64,
-            blocks: stat.st_blocks as u64,
-            flags: flags(stat),
-            gen: gen(stat),
-        }
-    }
-}
-
-pub fn stat(p: &CString) -> IoResult<io::FileStat> {
-    return os_stat(p);
-
-    #[cfg(windows)]
-    fn os_stat(p: &CString) -> IoResult<io::FileStat> {
-        let mut stat: libc::stat = unsafe { mem::uninit() };
-        as_utf16_p(p.as_str().unwrap(), |up| {
-            match retry(|| unsafe { libc::wstat(up, &mut stat) }) {
-                0 => Ok(mkstat(&stat, p)),
-                _ => Err(super::last_error()),
-            }
-        })
-    }
-
-    #[cfg(unix)]
-    fn os_stat(p: &CString) -> IoResult<io::FileStat> {
-        let mut stat: libc::stat = unsafe { mem::uninit() };
-        match retry(|| unsafe { libc::stat(p.with_ref(|p| p), &mut stat) }) {
-            0 => Ok(mkstat(&stat, p)),
-            _ => Err(super::last_error()),
-        }
-    }
-}
-
-pub fn lstat(p: &CString) -> IoResult<io::FileStat> {
-    return os_lstat(p);
-
-    // FIXME: windows implementation is missing
-    #[cfg(windows)]
-    fn os_lstat(_p: &CString) -> IoResult<io::FileStat> {
-        Err(super::unimpl())
-    }
-
-    #[cfg(unix)]
-    fn os_lstat(p: &CString) -> IoResult<io::FileStat> {
-        let mut stat: libc::stat = unsafe { mem::uninit() };
-        match retry(|| unsafe { libc::lstat(p.with_ref(|p| p), &mut stat) }) {
-            0 => Ok(mkstat(&stat, p)),
-            _ => Err(super::last_error()),
-        }
-    }
-}
-
-pub fn utime(p: &CString, atime: u64, mtime: u64) -> IoResult<()> {
-    return super::mkerr_libc(os_utime(p, atime, mtime));
-
-    #[cfg(windows)]
-    fn os_utime(p: &CString, atime: u64, mtime: u64) -> c_int {
-        let buf = libc::utimbuf {
-            actime: (atime / 1000) as libc::time64_t,
-            modtime: (mtime / 1000) as libc::time64_t,
-        };
-        unsafe {
-            as_utf16_p(p.as_str().unwrap(), |p| retry(|| {
-                libc::wutime(p, &buf)
-            }))
-        }
-    }
-
-    #[cfg(unix)]
-    fn os_utime(p: &CString, atime: u64, mtime: u64) -> c_int {
-        let buf = libc::utimbuf {
-            actime: (atime / 1000) as libc::time_t,
-            modtime: (mtime / 1000) as libc::time_t,
-        };
-        retry(|| unsafe { libc::utime(p.with_ref(|p| p), &buf) })
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::{CFile, FileDesc};
-    use std::io;
-    use std::libc;
-    use std::os;
-    use std::rt::rtio::RtioFileStream;
-
-    #[ignore(cfg(target_os = "freebsd"))] // hmm, maybe pipes have a tiny buffer
-    #[test]
-    fn test_file_desc() {
-        // Run this test with some pipes so we don't have to mess around with
-        // opening or closing files.
-        unsafe {
-            let os::Pipe { input, out } = os::pipe();
-            let mut reader = FileDesc::new(input, true);
-            let mut writer = FileDesc::new(out, true);
-
-            writer.inner_write(bytes!("test")).unwrap();
-            let mut buf = [0u8, ..4];
-            match reader.inner_read(buf) {
-                Ok(4) => {
-                    assert_eq!(buf[0], 't' as u8);
-                    assert_eq!(buf[1], 'e' as u8);
-                    assert_eq!(buf[2], 's' as u8);
-                    assert_eq!(buf[3], 't' as u8);
-                }
-                r => fail!("invalid read: {:?}", r)
-            }
-
-            assert!(writer.inner_read(buf).is_err());
-            assert!(reader.inner_write(buf).is_err());
-        }
-    }
-
-    #[ignore(cfg(windows))] // apparently windows doesn't like tmpfile
-    #[test]
-    fn test_cfile() {
-        unsafe {
-            let f = libc::tmpfile();
-            assert!(!f.is_null());
-            let mut file = CFile::new(f);
-
-            file.write(bytes!("test")).unwrap();
-            let mut buf = [0u8, ..4];
-            let _ = file.seek(0, io::SeekSet).unwrap();
-            match file.read(buf) {
-                Ok(4) => {
-                    assert_eq!(buf[0], 't' as u8);
-                    assert_eq!(buf[1], 'e' as u8);
-                    assert_eq!(buf[2], 's' as u8);
-                    assert_eq!(buf[3], 't' as u8);
-                }
-                r => fail!("invalid read: {:?}", r)
-            }
-        }
-    }
-}
diff --git a/src/libnative/io/file_unix.rs b/src/libnative/io/file_unix.rs
new file mode 100644
index 00000000000..4b6d1813ffa
--- /dev/null
+++ b/src/libnative/io/file_unix.rs
@@ -0,0 +1,573 @@
+// Copyright 2013-2014 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.
+
+//! Blocking posix-based file I/O
+
+use std::sync::arc::UnsafeArc;
+use std::c_str::CString;
+use std::io::IoError;
+use std::io;
+use std::libc::{c_int, c_void};
+use std::libc;
+use std::mem;
+use std::rt::rtio;
+use std::vec;
+
+use io::{IoResult, retry, keep_going};
+
+pub type fd_t = libc::c_int;
+
+struct Inner {
+    fd: fd_t,
+    close_on_drop: bool,
+}
+
+pub struct FileDesc {
+    priv inner: UnsafeArc<Inner>
+}
+
+impl FileDesc {
+    /// Create a `FileDesc` from an open C file descriptor.
+    ///
+    /// The `FileDesc` will take ownership of the specified file descriptor and
+    /// close it upon destruction if the `close_on_drop` flag is true, otherwise
+    /// it will not close the file descriptor when this `FileDesc` is dropped.
+    ///
+    /// Note that all I/O operations done on this object will be *blocking*, but
+    /// they do not require the runtime to be active.
+    pub fn new(fd: fd_t, close_on_drop: bool) -> FileDesc {
+        FileDesc { inner: UnsafeArc::new(Inner {
+            fd: fd,
+            close_on_drop: close_on_drop
+        }) }
+    }
+
+    // FIXME(#10465) these functions should not be public, but anything in
+    //               native::io wanting to use them is forced to have all the
+    //               rtio traits in scope
+    pub fn inner_read(&mut self, buf: &mut [u8]) -> Result<uint, IoError> {
+        let ret = retry(|| unsafe {
+            libc::read(self.fd(),
+                       buf.as_mut_ptr() as *mut libc::c_void,
+                       buf.len() as libc::size_t) as libc::c_int
+        });
+        if ret == 0 {
+            Err(io::standard_error(io::EndOfFile))
+        } else if ret < 0 {
+            Err(super::last_error())
+        } else {
+            Ok(ret as uint)
+        }
+    }
+    pub fn inner_write(&mut self, buf: &[u8]) -> Result<(), IoError> {
+        let ret = keep_going(buf, |buf, len| {
+            unsafe {
+                libc::write(self.fd(), buf as *libc::c_void,
+                            len as libc::size_t) as i64
+            }
+        });
+        if ret < 0 {
+            Err(super::last_error())
+        } else {
+            Ok(())
+        }
+    }
+
+    pub fn fd(&self) -> fd_t {
+        // This unsafety is fine because we're just reading off the file
+        // descriptor, no one is modifying this.
+        unsafe { (*self.inner.get()).fd }
+    }
+}
+
+impl io::Reader for FileDesc {
+    fn read(&mut self, buf: &mut [u8]) -> io::IoResult<uint> {
+        self.inner_read(buf)
+    }
+}
+
+impl io::Writer for FileDesc {
+    fn write(&mut self, buf: &[u8]) -> io::IoResult<()> {
+        self.inner_write(buf)
+    }
+}
+
+impl rtio::RtioFileStream for FileDesc {
+    fn read(&mut self, buf: &mut [u8]) -> Result<int, IoError> {
+        self.inner_read(buf).map(|i| i as int)
+    }
+    fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
+        self.inner_write(buf)
+    }
+    fn pread(&mut self, buf: &mut [u8], offset: u64) -> Result<int, IoError> {
+        match retry(|| unsafe {
+            libc::pread(self.fd(), buf.as_ptr() as *libc::c_void,
+                        buf.len() as libc::size_t,
+                        offset as libc::off_t) as libc::c_int
+        }) {
+            -1 => Err(super::last_error()),
+            n => Ok(n as int)
+        }
+    }
+    fn pwrite(&mut self, buf: &[u8], offset: u64) -> Result<(), IoError> {
+        super::mkerr_libc(retry(|| unsafe {
+            libc::pwrite(self.fd(), buf.as_ptr() as *libc::c_void,
+                         buf.len() as libc::size_t, offset as libc::off_t)
+        } as c_int))
+    }
+    fn seek(&mut self, pos: i64, whence: io::SeekStyle) -> Result<u64, IoError> {
+        let whence = match whence {
+            io::SeekSet => libc::SEEK_SET,
+            io::SeekEnd => libc::SEEK_END,
+            io::SeekCur => libc::SEEK_CUR,
+        };
+        let n = unsafe { libc::lseek(self.fd(), pos as libc::off_t, whence) };
+        if n < 0 {
+            Err(super::last_error())
+        } else {
+            Ok(n as u64)
+        }
+    }
+    fn tell(&self) -> Result<u64, IoError> {
+        let n = unsafe { libc::lseek(self.fd(), 0, libc::SEEK_CUR) };
+        if n < 0 {
+            Err(super::last_error())
+        } else {
+            Ok(n as u64)
+        }
+    }
+    fn fsync(&mut self) -> Result<(), IoError> {
+        super::mkerr_libc(retry(|| unsafe { libc::fsync(self.fd()) }))
+    }
+    fn datasync(&mut self) -> Result<(), IoError> {
+        return super::mkerr_libc(os_datasync(self.fd()));
+
+        #[cfg(target_os = "macos")]
+        fn os_datasync(fd: c_int) -> c_int {
+            unsafe { libc::fcntl(fd, libc::F_FULLFSYNC) }
+        }
+        #[cfg(target_os = "linux")]
+        fn os_datasync(fd: c_int) -> c_int {
+            retry(|| unsafe { libc::fdatasync(fd) })
+        }
+        #[cfg(not(target_os = "macos"), not(target_os = "linux"))]
+        fn os_datasync(fd: c_int) -> c_int {
+            retry(|| unsafe { libc::fsync(fd) })
+        }
+    }
+    fn truncate(&mut self, offset: i64) -> Result<(), IoError> {
+        super::mkerr_libc(retry(|| unsafe {
+            libc::ftruncate(self.fd(), offset as libc::off_t)
+        }))
+    }
+}
+
+impl rtio::RtioPipe for FileDesc {
+    fn read(&mut self, buf: &mut [u8]) -> Result<uint, IoError> {
+        self.inner_read(buf)
+    }
+    fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
+        self.inner_write(buf)
+    }
+    fn clone(&self) -> ~rtio::RtioPipe {
+        ~FileDesc { inner: self.inner.clone() } as ~rtio::RtioPipe
+    }
+}
+
+impl rtio::RtioTTY for FileDesc {
+    fn read(&mut self, buf: &mut [u8]) -> Result<uint, IoError> {
+        self.inner_read(buf)
+    }
+    fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
+        self.inner_write(buf)
+    }
+    fn set_raw(&mut self, _raw: bool) -> Result<(), IoError> {
+        Err(super::unimpl())
+    }
+    fn get_winsize(&mut self) -> Result<(int, int), IoError> {
+        Err(super::unimpl())
+    }
+    fn isatty(&self) -> bool { false }
+}
+
+impl Drop for Inner {
+    fn drop(&mut self) {
+        // closing stdio file handles makes no sense, so never do it. Also, note
+        // that errors are ignored when closing a file descriptor. The reason
+        // for this is that if an error occurs we don't actually know if the
+        // file descriptor was closed or not, and if we retried (for something
+        // like EINTR), we might close another valid file descriptor (opened
+        // after we closed ours.
+        if self.close_on_drop && self.fd > libc::STDERR_FILENO {
+            let n = unsafe { libc::close(self.fd) };
+            if n != 0 {
+                warn!("error {} when closing file descriptor {}", n, self.fd);
+            }
+        }
+    }
+}
+
+pub struct CFile {
+    priv file: *libc::FILE,
+    priv fd: FileDesc,
+}
+
+impl CFile {
+    /// Create a `CFile` from an open `FILE` pointer.
+    ///
+    /// The `CFile` takes ownership of the `FILE` pointer and will close it upon
+    /// destruction.
+    pub fn new(file: *libc::FILE) -> CFile {
+        CFile {
+            file: file,
+            fd: FileDesc::new(unsafe { libc::fileno(file) }, false)
+        }
+    }
+
+    pub fn flush(&mut self) -> Result<(), IoError> {
+        super::mkerr_libc(retry(|| unsafe { libc::fflush(self.file) }))
+    }
+}
+
+impl rtio::RtioFileStream for CFile {
+    fn read(&mut self, buf: &mut [u8]) -> Result<int, IoError> {
+        let ret = keep_going(buf, |buf, len| {
+            unsafe {
+                libc::fread(buf as *mut libc::c_void, 1, len as libc::size_t,
+                            self.file) as i64
+            }
+        });
+        if ret == 0 {
+            Err(io::standard_error(io::EndOfFile))
+        } else if ret < 0 {
+            Err(super::last_error())
+        } else {
+            Ok(ret as int)
+        }
+    }
+
+    fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
+        let ret = keep_going(buf, |buf, len| {
+            unsafe {
+                libc::fwrite(buf as *libc::c_void, 1, len as libc::size_t,
+                            self.file) as i64
+            }
+        });
+        if ret < 0 {
+            Err(super::last_error())
+        } else {
+            Ok(())
+        }
+    }
+
+    fn pread(&mut self, buf: &mut [u8], offset: u64) -> Result<int, IoError> {
+        self.flush().and_then(|()| self.fd.pread(buf, offset))
+    }
+    fn pwrite(&mut self, buf: &[u8], offset: u64) -> Result<(), IoError> {
+        self.flush().and_then(|()| self.fd.pwrite(buf, offset))
+    }
+    fn seek(&mut self, pos: i64, style: io::SeekStyle) -> Result<u64, IoError> {
+        let whence = match style {
+            io::SeekSet => libc::SEEK_SET,
+            io::SeekEnd => libc::SEEK_END,
+            io::SeekCur => libc::SEEK_CUR,
+        };
+        let n = unsafe { libc::fseek(self.file, pos as libc::c_long, whence) };
+        if n < 0 {
+            Err(super::last_error())
+        } else {
+            Ok(n as u64)
+        }
+    }
+    fn tell(&self) -> Result<u64, IoError> {
+        let ret = unsafe { libc::ftell(self.file) };
+        if ret < 0 {
+            Err(super::last_error())
+        } else {
+            Ok(ret as u64)
+        }
+    }
+    fn fsync(&mut self) -> Result<(), IoError> {
+        self.flush().and_then(|()| self.fd.fsync())
+    }
+    fn datasync(&mut self) -> Result<(), IoError> {
+        self.flush().and_then(|()| self.fd.fsync())
+    }
+    fn truncate(&mut self, offset: i64) -> Result<(), IoError> {
+        self.flush().and_then(|()| self.fd.truncate(offset))
+    }
+}
+
+impl Drop for CFile {
+    fn drop(&mut self) {
+        unsafe { let _ = libc::fclose(self.file); }
+    }
+}
+
+pub fn open(path: &CString, fm: io::FileMode, fa: io::FileAccess)
+        -> IoResult<FileDesc> {
+    let flags = match fm {
+        io::Open => 0,
+        io::Append => libc::O_APPEND,
+        io::Truncate => libc::O_TRUNC,
+    };
+    // Opening with a write permission must silently create the file.
+    let (flags, mode) = match fa {
+        io::Read => (flags | libc::O_RDONLY, 0),
+        io::Write => (flags | libc::O_WRONLY | libc::O_CREAT,
+                      libc::S_IRUSR | libc::S_IWUSR),
+        io::ReadWrite => (flags | libc::O_RDWR | libc::O_CREAT,
+                          libc::S_IRUSR | libc::S_IWUSR),
+    };
+
+    match retry(|| unsafe { libc::open(path.with_ref(|p| p), flags, mode) }) {
+        -1 => Err(super::last_error()),
+        fd => Ok(FileDesc::new(fd, true)),
+    }
+}
+
+pub fn mkdir(p: &CString, mode: io::FilePermission) -> IoResult<()> {
+    super::mkerr_libc(retry(|| unsafe {
+        libc::mkdir(p.with_ref(|p| p), mode as libc::mode_t)
+    }))
+}
+
+pub fn readdir(p: &CString) -> IoResult<~[Path]> {
+    use std::libc::{dirent_t};
+    use std::libc::{opendir, readdir, closedir};
+
+    fn prune(root: &CString, dirs: ~[Path]) -> ~[Path] {
+        let root = unsafe { CString::new(root.with_ref(|p| p), false) };
+        let root = Path::new(root);
+
+        dirs.move_iter().filter(|path| {
+            path.as_vec() != bytes!(".") && path.as_vec() != bytes!("..")
+        }).map(|path| root.join(path)).collect()
+    }
+
+    extern {
+        fn rust_list_dir_val(ptr: *dirent_t) -> *libc::c_char;
+    }
+
+    debug!("os::list_dir -- BEFORE OPENDIR");
+
+    let dir_ptr = p.with_ref(|buf| unsafe { opendir(buf) });
+
+    if dir_ptr as uint != 0 {
+        let mut paths = ~[];
+        debug!("os::list_dir -- opendir() SUCCESS");
+        let mut entry_ptr = unsafe { readdir(dir_ptr) };
+        while entry_ptr as uint != 0 {
+            let cstr = unsafe {
+                CString::new(rust_list_dir_val(entry_ptr), false)
+            };
+            paths.push(Path::new(cstr));
+            entry_ptr = unsafe { readdir(dir_ptr) };
+        }
+        assert_eq!(unsafe { closedir(dir_ptr) }, 0);
+        Ok(prune(p, paths))
+    } else {
+        Err(super::last_error())
+    }
+}
+
+pub fn unlink(p: &CString) -> IoResult<()> {
+    super::mkerr_libc(retry(|| unsafe { libc::unlink(p.with_ref(|p| p)) }))
+}
+
+pub fn rename(old: &CString, new: &CString) -> IoResult<()> {
+    super::mkerr_libc(retry(|| unsafe {
+        libc::rename(old.with_ref(|p| p), new.with_ref(|p| p))
+    }))
+}
+
+pub fn chmod(p: &CString, mode: io::FilePermission) -> IoResult<()> {
+    super::mkerr_libc(retry(|| unsafe {
+        libc::chmod(p.with_ref(|p| p), mode as libc::mode_t)
+    }))
+}
+
+pub fn rmdir(p: &CString) -> IoResult<()> {
+    super::mkerr_libc(retry(|| unsafe {
+        libc::rmdir(p.with_ref(|p| p))
+    }))
+}
+
+pub fn chown(p: &CString, uid: int, gid: int) -> IoResult<()> {
+    super::mkerr_libc(retry(|| unsafe {
+        libc::chown(p.with_ref(|p| p), uid as libc::uid_t,
+                    gid as libc::gid_t)
+    }))
+}
+
+pub fn readlink(p: &CString) -> IoResult<Path> {
+    let p = p.with_ref(|p| p);
+    let mut len = unsafe { libc::pathconf(p, libc::_PC_NAME_MAX) };
+    if len == -1 {
+        len = 1024; // FIXME: read PATH_MAX from C ffi?
+    }
+    let mut buf = vec::with_capacity::<u8>(len as uint);
+    match retry(|| unsafe {
+        libc::readlink(p, buf.as_ptr() as *mut libc::c_char,
+                       len as libc::size_t) as libc::c_int
+    }) {
+        -1 => Err(super::last_error()),
+        n => {
+            assert!(n > 0);
+            unsafe { buf.set_len(n as uint); }
+            Ok(Path::new(buf))
+        }
+    }
+}
+
+pub fn symlink(src: &CString, dst: &CString) -> IoResult<()> {
+    super::mkerr_libc(retry(|| unsafe {
+        libc::symlink(src.with_ref(|p| p), dst.with_ref(|p| p))
+    }))
+}
+
+pub fn link(src: &CString, dst: &CString) -> IoResult<()> {
+    super::mkerr_libc(retry(|| unsafe {
+        libc::link(src.with_ref(|p| p), dst.with_ref(|p| p))
+    }))
+}
+
+fn mkstat(stat: &libc::stat, path: &CString) -> io::FileStat {
+    let path = unsafe { CString::new(path.with_ref(|p| p), false) };
+
+    // FileStat times are in milliseconds
+    fn mktime(secs: u64, nsecs: u64) -> u64 { secs * 1000 + nsecs / 1000000 }
+
+    let kind = match (stat.st_mode as c_int) & libc::S_IFMT {
+        libc::S_IFREG => io::TypeFile,
+        libc::S_IFDIR => io::TypeDirectory,
+        libc::S_IFIFO => io::TypeNamedPipe,
+        libc::S_IFBLK => io::TypeBlockSpecial,
+        libc::S_IFLNK => io::TypeSymlink,
+        _ => io::TypeUnknown,
+    };
+
+    #[cfg(not(target_os = "linux"), not(target_os = "android"))]
+    fn flags(stat: &libc::stat) -> u64 { stat.st_flags as u64 }
+    #[cfg(target_os = "linux")] #[cfg(target_os = "android")]
+    fn flags(_stat: &libc::stat) -> u64 { 0 }
+
+    #[cfg(not(target_os = "linux"), not(target_os = "android"))]
+    fn gen(stat: &libc::stat) -> u64 { stat.st_gen as u64 }
+    #[cfg(target_os = "linux")] #[cfg(target_os = "android")]
+    fn gen(_stat: &libc::stat) -> u64 { 0 }
+
+    io::FileStat {
+        path: Path::new(path),
+        size: stat.st_size as u64,
+        kind: kind,
+        perm: (stat.st_mode) as io::FilePermission & io::AllPermissions,
+        created: mktime(stat.st_ctime as u64, stat.st_ctime_nsec as u64),
+        modified: mktime(stat.st_mtime as u64, stat.st_mtime_nsec as u64),
+        accessed: mktime(stat.st_atime as u64, stat.st_atime_nsec as u64),
+        unstable: io::UnstableFileStat {
+            device: stat.st_dev as u64,
+            inode: stat.st_ino as u64,
+            rdev: stat.st_rdev as u64,
+            nlink: stat.st_nlink as u64,
+            uid: stat.st_uid as u64,
+            gid: stat.st_gid as u64,
+            blksize: stat.st_blksize as u64,
+            blocks: stat.st_blocks as u64,
+            flags: flags(stat),
+            gen: gen(stat),
+        }
+    }
+}
+
+pub fn stat(p: &CString) -> IoResult<io::FileStat> {
+    let mut stat: libc::stat = unsafe { mem::uninit() };
+    match retry(|| unsafe { libc::stat(p.with_ref(|p| p), &mut stat) }) {
+        0 => Ok(mkstat(&stat, p)),
+        _ => Err(super::last_error()),
+    }
+}
+
+pub fn lstat(p: &CString) -> IoResult<io::FileStat> {
+    let mut stat: libc::stat = unsafe { mem::uninit() };
+    match retry(|| unsafe { libc::lstat(p.with_ref(|p| p), &mut stat) }) {
+        0 => Ok(mkstat(&stat, p)),
+        _ => Err(super::last_error()),
+    }
+}
+
+pub fn utime(p: &CString, atime: u64, mtime: u64) -> IoResult<()> {
+    let buf = libc::utimbuf {
+        actime: (atime / 1000) as libc::time_t,
+        modtime: (mtime / 1000) as libc::time_t,
+    };
+    super::mkerr_libc(retry(|| unsafe {
+        libc::utime(p.with_ref(|p| p), &buf)
+    }))
+}
+
+#[cfg(test)]
+mod tests {
+    use super::{CFile, FileDesc};
+    use std::io;
+    use std::libc;
+    use std::os;
+    use std::rt::rtio::RtioFileStream;
+
+    #[ignore(cfg(target_os = "freebsd"))] // hmm, maybe pipes have a tiny buffer
+    #[test]
+    fn test_file_desc() {
+        // Run this test with some pipes so we don't have to mess around with
+        // opening or closing files.
+        unsafe {
+            let os::Pipe { input, out } = os::pipe();
+            let mut reader = FileDesc::new(input, true);
+            let mut writer = FileDesc::new(out, true);
+
+            writer.inner_write(bytes!("test")).unwrap();
+            let mut buf = [0u8, ..4];
+            match reader.inner_read(buf) {
+                Ok(4) => {
+                    assert_eq!(buf[0], 't' as u8);
+                    assert_eq!(buf[1], 'e' as u8);
+                    assert_eq!(buf[2], 's' as u8);
+                    assert_eq!(buf[3], 't' as u8);
+                }
+                r => fail!("invalid read: {:?}", r)
+            }
+
+            assert!(writer.inner_read(buf).is_err());
+            assert!(reader.inner_write(buf).is_err());
+        }
+    }
+
+    #[test]
+    fn test_cfile() {
+        unsafe {
+            let f = libc::tmpfile();
+            assert!(!f.is_null());
+            let mut file = CFile::new(f);
+
+            file.write(bytes!("test")).unwrap();
+            let mut buf = [0u8, ..4];
+            let _ = file.seek(0, io::SeekSet).unwrap();
+            match file.read(buf) {
+                Ok(4) => {
+                    assert_eq!(buf[0], 't' as u8);
+                    assert_eq!(buf[1], 'e' as u8);
+                    assert_eq!(buf[2], 's' as u8);
+                    assert_eq!(buf[3], 't' as u8);
+                }
+                r => fail!("invalid read: {:?}", r)
+            }
+        }
+    }
+}
+
diff --git a/src/libnative/io/file_win32.rs b/src/libnative/io/file_win32.rs
new file mode 100644
index 00000000000..e880bd05cf7
--- /dev/null
+++ b/src/libnative/io/file_win32.rs
@@ -0,0 +1,517 @@
+// Copyright 2013-2014 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.
+
+//! Blocking win32-based file I/O
+
+use std::c_str::CString;
+use std::cast;
+use std::io::IoError;
+use std::io;
+use std::libc::{c_int, c_void};
+use std::libc;
+use std::mem;
+use std::os::win32::{as_utf16_p, fill_utf16_buf_and_decode};
+use std::ptr;
+use std::rt::rtio;
+use std::str;
+use std::sync::arc::UnsafeArc;
+use std::vec;
+
+use io::IoResult;
+
+pub type fd_t = libc::c_int;
+
+struct Inner {
+    fd: fd_t,
+    close_on_drop: bool,
+}
+
+pub struct FileDesc {
+    priv inner: UnsafeArc<Inner>
+}
+
+impl FileDesc {
+    /// Create a `FileDesc` from an open C file descriptor.
+    ///
+    /// The `FileDesc` will take ownership of the specified file descriptor and
+    /// close it upon destruction if the `close_on_drop` flag is true, otherwise
+    /// it will not close the file descriptor when this `FileDesc` is dropped.
+    ///
+    /// Note that all I/O operations done on this object will be *blocking*, but
+    /// they do not require the runtime to be active.
+    pub fn new(fd: fd_t, close_on_drop: bool) -> FileDesc {
+        FileDesc { inner: UnsafeArc::new(Inner {
+            fd: fd,
+            close_on_drop: close_on_drop
+        }) }
+    }
+
+    pub fn inner_read(&mut self, buf: &mut [u8]) -> Result<uint, IoError> {
+        let mut read = 0;
+        let ret = unsafe {
+            libc::ReadFile(self.handle(), buf.as_ptr() as libc::LPVOID,
+                           buf.len() as libc::DWORD, &mut read,
+                           ptr::mut_null())
+        };
+        if ret != 0 {
+            Ok(read as uint)
+        } else {
+            Err(super::last_error())
+        }
+    }
+    pub fn inner_write(&mut self, buf: &[u8]) -> Result<(), IoError> {
+        let mut cur = buf.as_ptr();
+        let mut remaining = buf.len();
+        while remaining > 0 {
+            let mut amt = 0;
+            let ret = unsafe {
+                libc::WriteFile(self.handle(), cur as libc::LPVOID,
+                                remaining as libc::DWORD, &mut amt,
+                                ptr::mut_null())
+            };
+            if ret != 0 {
+                remaining -= amt as uint;
+                cur = unsafe { cur.offset(amt as int) };
+            } else {
+                return Err(super::last_error())
+            }
+        }
+        Ok(())
+    }
+
+    pub fn fd(&self) -> fd_t {
+        // This unsafety is fine because we're just reading off the file
+        // descriptor, no one is modifying this.
+        unsafe { (*self.inner.get()).fd }
+    }
+
+    pub fn handle(&self) -> libc::HANDLE {
+        unsafe { libc::get_osfhandle(self.fd()) as libc::HANDLE }
+    }
+}
+
+impl io::Reader for FileDesc {
+    fn read(&mut self, buf: &mut [u8]) -> io::IoResult<uint> {
+        self.inner_read(buf)
+    }
+}
+
+impl io::Writer for FileDesc {
+    fn write(&mut self, buf: &[u8]) -> io::IoResult<()> {
+        self.inner_write(buf)
+    }
+}
+
+impl rtio::RtioFileStream for FileDesc {
+    fn read(&mut self, buf: &mut [u8]) -> Result<int, IoError> {
+        self.inner_read(buf).map(|i| i as int)
+    }
+    fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
+        self.inner_write(buf)
+    }
+
+    fn pread(&mut self, buf: &mut [u8], offset: u64) -> Result<int, IoError> {
+        let mut read = 0;
+        let mut overlap: libc::OVERLAPPED = unsafe { mem::init() };
+        overlap.Offset = offset as libc::DWORD;
+        overlap.OffsetHigh = (offset >> 32) as libc::DWORD;
+        let ret = unsafe {
+            libc::ReadFile(self.handle(), buf.as_ptr() as libc::LPVOID,
+                           buf.len() as libc::DWORD, &mut read,
+                           &mut overlap)
+        };
+        if ret != 0 {
+            Ok(read as int)
+        } else {
+            Err(super::last_error())
+        }
+    }
+    fn pwrite(&mut self, buf: &[u8], mut offset: u64) -> Result<(), IoError> {
+        let mut cur = buf.as_ptr();
+        let mut remaining = buf.len();
+        let mut overlap: libc::OVERLAPPED = unsafe { mem::init() };
+        while remaining > 0 {
+            overlap.Offset = offset as libc::DWORD;
+            overlap.OffsetHigh = (offset >> 32) as libc::DWORD;
+            let mut amt = 0;
+            let ret = unsafe {
+                libc::WriteFile(self.handle(), cur as libc::LPVOID,
+                                remaining as libc::DWORD, &mut amt,
+                                &mut overlap)
+            };
+            if ret != 0 {
+                remaining -= amt as uint;
+                cur = unsafe { cur.offset(amt as int) };
+                offset += amt as u64;
+            } else {
+                return Err(super::last_error())
+            }
+        }
+        Ok(())
+    }
+    fn seek(&mut self, pos: i64, style: io::SeekStyle) -> Result<u64, IoError> {
+        let whence = match style {
+            io::SeekSet => libc::FILE_BEGIN,
+            io::SeekEnd => libc::FILE_END,
+            io::SeekCur => libc::FILE_CURRENT,
+        };
+        unsafe {
+            let mut newpos = 0;
+            match libc::SetFilePointerEx(self.handle(), pos, &mut newpos,
+                                         whence) {
+                0 => Err(super::last_error()),
+                _ => Ok(newpos as u64),
+            }
+        }
+    }
+    fn tell(&self) -> Result<u64, IoError> {
+        // This transmute is fine because our seek implementation doesn't
+        // actually use the mutable self at all.
+        unsafe { cast::transmute_mut(self).seek(0, io::SeekCur) }
+    }
+
+    fn fsync(&mut self) -> Result<(), IoError> {
+        super::mkerr_winbool(unsafe {
+            libc::FlushFileBuffers(self.handle())
+        })
+    }
+
+    fn datasync(&mut self) -> Result<(), IoError> { return self.fsync(); }
+
+    fn truncate(&mut self, offset: i64) -> Result<(), IoError> {
+        let orig_pos = try!(self.tell());
+        let _ = try!(self.seek(offset, io::SeekSet));
+        let ret = unsafe {
+            match libc::SetEndOfFile(self.handle()) {
+                0 => Err(super::last_error()),
+                _ => Ok(())
+            }
+        };
+        let _ = self.seek(orig_pos as i64, io::SeekSet);
+        return ret;
+    }
+}
+
+impl rtio::RtioPipe for FileDesc {
+    fn read(&mut self, buf: &mut [u8]) -> Result<uint, IoError> {
+        self.inner_read(buf)
+    }
+    fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
+        self.inner_write(buf)
+    }
+    fn clone(&self) -> ~rtio::RtioPipe {
+        ~FileDesc { inner: self.inner.clone() } as ~rtio::RtioPipe
+    }
+}
+
+impl rtio::RtioTTY for FileDesc {
+    fn read(&mut self, buf: &mut [u8]) -> Result<uint, IoError> {
+        self.inner_read(buf)
+    }
+    fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
+        self.inner_write(buf)
+    }
+    fn set_raw(&mut self, _raw: bool) -> Result<(), IoError> {
+        Err(super::unimpl())
+    }
+    fn get_winsize(&mut self) -> Result<(int, int), IoError> {
+        Err(super::unimpl())
+    }
+    fn isatty(&self) -> bool { false }
+}
+
+impl Drop for Inner {
+    fn drop(&mut self) {
+        // closing stdio file handles makes no sense, so never do it. Also, note
+        // that errors are ignored when closing a file descriptor. The reason
+        // for this is that if an error occurs we don't actually know if the
+        // file descriptor was closed or not, and if we retried (for something
+        // like EINTR), we might close another valid file descriptor (opened
+        // after we closed ours.
+        if self.close_on_drop && self.fd > libc::STDERR_FILENO {
+            let n = unsafe { libc::close(self.fd) };
+            if n != 0 {
+                warn!("error {} when closing file descriptor {}", n, self.fd);
+            }
+        }
+    }
+}
+
+pub fn open(path: &CString, fm: io::FileMode, fa: io::FileAccess)
+        -> IoResult<FileDesc> {
+    // Flags passed to open_osfhandle
+    let flags = match fm {
+        io::Open => 0,
+        io::Append => libc::O_APPEND,
+        io::Truncate => libc::O_TRUNC,
+    };
+    let flags = match fa {
+        io::Read => flags | libc::O_RDONLY,
+        io::Write => flags | libc::O_WRONLY | libc::O_CREAT,
+        io::ReadWrite => flags | libc::O_RDWR | libc::O_CREAT,
+    };
+
+    let mut dwDesiredAccess = match fa {
+        io::Read => libc::FILE_GENERIC_READ,
+        io::Write => libc::FILE_GENERIC_WRITE,
+        io::ReadWrite => libc::FILE_GENERIC_READ | libc::FILE_GENERIC_WRITE
+    };
+
+    // libuv has a good comment about this, but the basic idea is what we try to
+    // emulate unix semantics by enabling all sharing by allowing things such as
+    // deleting a file while it's still open.
+    let dwShareMode = libc::FILE_SHARE_READ | libc::FILE_SHARE_WRITE |
+                      libc::FILE_SHARE_DELETE;
+
+    let dwCreationDisposition = match (fm, fa) {
+        (io::Truncate, io::Read) => libc::TRUNCATE_EXISTING,
+        (io::Truncate, _) => libc::CREATE_ALWAYS,
+        (io::Open, io::Read) => libc::OPEN_EXISTING,
+        (io::Open, _) => libc::CREATE_NEW,
+        (io::Append, io::Read) => {
+            dwDesiredAccess |= libc::FILE_APPEND_DATA;
+            libc::OPEN_EXISTING
+        }
+        (io::Append, _) => {
+            dwDesiredAccess &= !libc::FILE_WRITE_DATA;
+            dwDesiredAccess |= libc::FILE_APPEND_DATA;
+            libc::OPEN_ALWAYS
+        }
+    };
+
+    let mut dwFlagsAndAttributes = libc::FILE_ATTRIBUTE_NORMAL;
+    // Compat with unix, this allows opening directories (see libuv)
+    dwFlagsAndAttributes |= libc::FILE_FLAG_BACKUP_SEMANTICS;
+
+    let handle = as_utf16_p(path.as_str().unwrap(), |buf| unsafe {
+        libc::CreateFileW(buf,
+                          dwDesiredAccess,
+                          dwShareMode,
+                          ptr::mut_null(),
+                          dwCreationDisposition,
+                          dwFlagsAndAttributes,
+                          ptr::mut_null())
+    });
+    if handle == libc::INVALID_HANDLE_VALUE as libc::HANDLE {
+        Err(super::last_error())
+    } else {
+        let fd = unsafe {
+            libc::open_osfhandle(handle as libc::intptr_t, flags)
+        };
+        if fd < 0 {
+            let _ = unsafe { libc::CloseHandle(handle) };
+            Err(super::last_error())
+        } else {
+            Ok(FileDesc::new(fd, true))
+        }
+    }
+}
+
+pub fn mkdir(p: &CString, _mode: io::FilePermission) -> IoResult<()> {
+    super::mkerr_winbool(unsafe {
+        // FIXME: turn mode into something useful? #2623
+        as_utf16_p(p.as_str().unwrap(), |buf| {
+            libc::CreateDirectoryW(buf, ptr::mut_null())
+        })
+    })
+}
+
+pub fn readdir(p: &CString) -> IoResult<~[Path]> {
+    use rt::global_heap::malloc_raw;
+
+    fn prune(root: &CString, dirs: ~[Path]) -> ~[Path] {
+        let root = unsafe { CString::new(root.with_ref(|p| p), false) };
+        let root = Path::new(root);
+
+        dirs.move_iter().filter(|path| {
+            path.as_vec() != bytes!(".") && path.as_vec() != bytes!("..")
+        }).map(|path| root.join(path)).collect()
+    }
+
+    #[nolink]
+    extern {
+        fn rust_list_dir_wfd_size() -> libc::size_t;
+        fn rust_list_dir_wfd_fp_buf(wfd: *libc::c_void) -> *u16;
+    }
+    let star = Path::new(unsafe {
+        CString::new(p.with_ref(|p| p), false)
+    }).join("*");
+    as_utf16_p(star.as_str().unwrap(), |path_ptr| unsafe {
+        let wfd_ptr = malloc_raw(rust_list_dir_wfd_size() as uint);
+        let find_handle = libc::FindFirstFileW(path_ptr, wfd_ptr as libc::HANDLE);
+        if find_handle as libc::c_int != libc::INVALID_HANDLE_VALUE {
+            let mut paths = ~[];
+            let mut more_files = 1 as libc::c_int;
+            while more_files != 0 {
+                let fp_buf = rust_list_dir_wfd_fp_buf(wfd_ptr as *c_void);
+                if fp_buf as uint == 0 {
+                    fail!("os::list_dir() failure: got null ptr from wfd");
+                } else {
+                    let fp_vec = vec::from_buf(fp_buf,
+                                               libc::wcslen(fp_buf) as uint);
+                    let fp_trimmed = str::truncate_utf16_at_nul(fp_vec);
+                    let fp_str = str::from_utf16(fp_trimmed)
+                            .expect("rust_list_dir_wfd_fp_buf returned invalid UTF-16");
+                    paths.push(Path::new(fp_str));
+                }
+                more_files = libc::FindNextFileW(find_handle,
+                                                 wfd_ptr as libc::HANDLE);
+            }
+            assert!(libc::FindClose(find_handle) != 0);
+            libc::free(wfd_ptr as *mut c_void);
+            Ok(prune(p, paths))
+        } else {
+            Err(super::last_error())
+        }
+    })
+}
+
+pub fn unlink(p: &CString) -> IoResult<()> {
+    super::mkerr_winbool(unsafe {
+        as_utf16_p(p.as_str().unwrap(), |buf| {
+            libc::DeleteFileW(buf)
+        })
+    })
+}
+
+pub fn rename(old: &CString, new: &CString) -> IoResult<()> {
+    super::mkerr_winbool(unsafe {
+        as_utf16_p(old.as_str().unwrap(), |old| {
+            as_utf16_p(new.as_str().unwrap(), |new| {
+                libc::MoveFileExW(old, new, libc::MOVEFILE_REPLACE_EXISTING)
+            })
+        })
+    })
+}
+
+pub fn chmod(p: &CString, mode: io::FilePermission) -> IoResult<()> {
+    super::mkerr_libc(as_utf16_p(p.as_str().unwrap(), |p| unsafe {
+        libc::wchmod(p, mode as libc::c_int)
+    }))
+}
+
+pub fn rmdir(p: &CString) -> IoResult<()> {
+    super::mkerr_libc(as_utf16_p(p.as_str().unwrap(), |p| unsafe {
+        libc::wrmdir(p)
+    }))
+}
+
+pub fn chown(_p: &CString, _uid: int, _gid: int) -> IoResult<()> {
+    // libuv has this as a no-op, so seems like this should as well?
+    Ok(())
+}
+
+pub fn readlink(p: &CString) -> IoResult<Path> {
+    // FIXME: I have a feeling that this reads intermediate symlinks as well.
+    let handle = unsafe {
+        as_utf16_p(p.as_str().unwrap(), |p| {
+            libc::CreateFileW(p,
+                              libc::GENERIC_READ,
+                              libc::FILE_SHARE_READ,
+                              ptr::mut_null(),
+                              libc::OPEN_EXISTING,
+                              libc::FILE_ATTRIBUTE_NORMAL,
+                              ptr::mut_null())
+        })
+    };
+    if handle as int == libc::INVALID_HANDLE_VALUE as int {
+        return Err(super::last_error())
+    }
+    // Specify (sz - 1) because the documentation states that it's the size
+    // without the null pointer
+    let ret = fill_utf16_buf_and_decode(|buf, sz| unsafe {
+        libc::GetFinalPathNameByHandleW(handle,
+                                        buf as *u16,
+                                        sz - 1,
+                                        libc::VOLUME_NAME_DOS)
+    });
+    let ret = match ret {
+        Some(ref s) if s.starts_with(r"\\?\") => Ok(Path::new(s.slice_from(4))),
+        Some(s) => Ok(Path::new(s)),
+        None => Err(super::last_error()),
+    };
+    assert!(unsafe { libc::CloseHandle(handle) } != 0);
+    return ret;
+}
+
+pub fn symlink(src: &CString, dst: &CString) -> IoResult<()> {
+    super::mkerr_winbool(as_utf16_p(src.as_str().unwrap(), |src| {
+        as_utf16_p(dst.as_str().unwrap(), |dst| {
+            unsafe { libc::CreateSymbolicLinkW(dst, src, 0) }
+        }) as libc::BOOL
+    }))
+}
+
+pub fn link(src: &CString, dst: &CString) -> IoResult<()> {
+    super::mkerr_winbool(as_utf16_p(src.as_str().unwrap(), |src| {
+        as_utf16_p(dst.as_str().unwrap(), |dst| {
+            unsafe { libc::CreateHardLinkW(dst, src, ptr::mut_null()) }
+        })
+    }))
+}
+
+fn mkstat(stat: &libc::stat, path: &CString) -> io::FileStat {
+    let path = unsafe { CString::new(path.with_ref(|p| p), false) };
+    let kind = match (stat.st_mode as c_int) & libc::S_IFMT {
+        libc::S_IFREG => io::TypeFile,
+        libc::S_IFDIR => io::TypeDirectory,
+        libc::S_IFIFO => io::TypeNamedPipe,
+        libc::S_IFBLK => io::TypeBlockSpecial,
+        libc::S_IFLNK => io::TypeSymlink,
+        _ => io::TypeUnknown,
+    };
+
+    io::FileStat {
+        path: Path::new(path),
+        size: stat.st_size as u64,
+        kind: kind,
+        perm: (stat.st_mode) as io::FilePermission & io::AllPermissions,
+        created: stat.st_ctime as u64,
+        modified: stat.st_mtime as u64,
+        accessed: stat.st_atime as u64,
+        unstable: io::UnstableFileStat {
+            device: stat.st_dev as u64,
+            inode: stat.st_ino as u64,
+            rdev: stat.st_rdev as u64,
+            nlink: stat.st_nlink as u64,
+            uid: stat.st_uid as u64,
+            gid: stat.st_gid as u64,
+            blksize: 0,
+            blocks: 0,
+            flags: 0,
+            gen: 0,
+        }
+    }
+}
+
+pub fn stat(p: &CString) -> IoResult<io::FileStat> {
+    let mut stat: libc::stat = unsafe { mem::uninit() };
+    as_utf16_p(p.as_str().unwrap(), |up| {
+        match unsafe { libc::wstat(up, &mut stat) } {
+            0 => Ok(mkstat(&stat, p)),
+            _ => Err(super::last_error()),
+        }
+    })
+}
+
+pub fn lstat(_p: &CString) -> IoResult<io::FileStat> {
+    // FIXME: implementation is missing
+    Err(super::unimpl())
+}
+
+pub fn utime(p: &CString, atime: u64, mtime: u64) -> IoResult<()> {
+    let buf = libc::utimbuf {
+        actime: (atime / 1000) as libc::time64_t,
+        modtime: (mtime / 1000) as libc::time64_t,
+    };
+    super::mkerr_libc(as_utf16_p(p.as_str().unwrap(), |p| unsafe {
+        libc::wutime(p, &buf)
+    }))
+}
diff --git a/src/libnative/io/mod.rs b/src/libnative/io/mod.rs
index 2f4dc7817d3..2e3e9b3b506 100644
--- a/src/libnative/io/mod.rs
+++ b/src/libnative/io/mod.rs
@@ -42,10 +42,16 @@ pub use self::process::Process;
 
 // Native I/O implementations
 pub mod addrinfo;
-pub mod file;
 pub mod net;
 pub mod process;
 
+#[cfg(unix)]
+#[path = "file_unix.rs"]
+pub mod file;
+#[cfg(windows)]
+#[path = "file_win32.rs"]
+pub mod file;
+
 #[cfg(target_os = "macos")]
 #[cfg(target_os = "freebsd")]
 #[cfg(target_os = "android")]
@@ -97,7 +103,14 @@ fn translate_error(errno: i32, detail: bool) -> IoError {
             libc::WSAECONNABORTED => (io::ConnectionAborted, "connection aborted"),
             libc::WSAEADDRNOTAVAIL => (io::ConnectionRefused, "address not available"),
             libc::WSAEADDRINUSE => (io::ConnectionRefused, "address in use"),
-            libc::ERROR_BROKEN_PIPE => (io::BrokenPipe, "the pipe has ended"),
+            libc::ERROR_BROKEN_PIPE => (io::EndOfFile, "the pipe has ended"),
+
+            // libuv maps this error code to EISDIR. we do too. if it is found
+            // to be incorrect, we can add in some more machinery to only
+            // return this message when ERROR_INVALID_FUNCTION after certain
+            // win32 calls.
+            libc::ERROR_INVALID_FUNCTION => (io::InvalidInput,
+                                             "illegal operation on a directory"),
 
             x => {
                 debug!("ignoring {}: {}", x, os::last_os_error());
@@ -121,6 +134,7 @@ fn translate_error(errno: i32, detail: bool) -> IoError {
             libc::EADDRNOTAVAIL => (io::ConnectionRefused, "address not available"),
             libc::EADDRINUSE => (io::ConnectionRefused, "address in use"),
             libc::ENOENT => (io::FileNotFound, "no such file or directory"),
+            libc::EISDIR => (io::InvalidInput, "illegal operation on a directory"),
 
             // These two constants can have the same value on some systems, but
             // different values on others, so we can't use a match clause
@@ -185,6 +199,24 @@ fn retry(f: || -> libc::c_int) -> libc::c_int {
     }
 }
 
+fn keep_going(data: &[u8], f: |*u8, uint| -> i64) -> i64 {
+    let origamt = data.len();
+    let mut data = data.as_ptr();
+    let mut amt = origamt;
+    while amt > 0 {
+        let ret = retry(|| f(data, amt) as libc::c_int);
+        if ret == 0 {
+            break
+        } else if ret != -1 {
+            amt -= ret as uint;
+            data = unsafe { data.offset(ret as int) };
+        } else {
+            return ret as i64;
+        }
+    }
+    return (origamt - amt) as i64;
+}
+
 /// Implementation of rt::rtio's IoFactory trait to generate handles to the
 /// native I/O functionality.
 pub struct IoFactory {
diff --git a/src/libnative/io/net.rs b/src/libnative/io/net.rs
index d71f7544225..7445e4c0992 100644
--- a/src/libnative/io/net.rs
+++ b/src/libnative/io/net.rs
@@ -8,8 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[allow(non_camel_case_types)];
-
 use std::cast;
 use std::io::net::ip;
 use std::io;
@@ -18,8 +16,7 @@ use std::mem;
 use std::rt::rtio;
 use std::sync::arc::UnsafeArc;
 
-use super::{IoResult, retry};
-use super::file::keep_going;
+use super::{IoResult, retry, keep_going};
 
 ////////////////////////////////////////////////////////////////////////////////
 // sockaddr and misc bindings
@@ -323,16 +320,14 @@ impl rtio::RtioTcpStream for TcpStream {
         }
     }
     fn write(&mut self, buf: &[u8]) -> IoResult<()> {
-        let ret = keep_going(buf, |buf, len| {
-            unsafe {
-                libc::send(self.fd(),
-                           buf as *mut libc::c_void,
-                           len as wrlen,
-                           0) as i64
-            }
+        let ret = keep_going(buf, |buf, len| unsafe {
+            libc::send(self.fd(),
+                       buf as *mut libc::c_void,
+                       len as wrlen,
+                       0) as i64
         });
         if ret < 0 {
-            Err(last_error())
+            Err(super::last_error())
         } else {
             Ok(())
         }
diff --git a/src/libnative/io/pipe_unix.rs b/src/libnative/io/pipe_unix.rs
index 784d8650689..9e81dc02cc5 100644
--- a/src/libnative/io/pipe_unix.rs
+++ b/src/libnative/io/pipe_unix.rs
@@ -17,8 +17,8 @@ use std::rt::rtio;
 use std::sync::arc::UnsafeArc;
 use std::intrinsics;
 
-use super::{IoResult, retry};
-use super::file::{keep_going, fd_t};
+use super::{IoResult, retry, keep_going};
+use super::file::fd_t;
 
 fn unix_socket(ty: libc::c_int) -> IoResult<fd_t> {
     match unsafe { libc::socket(libc::AF_UNIX, ty, 0) } {
diff --git a/src/libnative/io/timer_helper.rs b/src/libnative/io/timer_helper.rs
index 0f3ed148229..7669d4a658f 100644
--- a/src/libnative/io/timer_helper.rs
+++ b/src/libnative/io/timer_helper.rs
@@ -20,8 +20,6 @@
 //! can be created in the future and there must be no active timers at that
 //! time.
 
-#[allow(non_camel_case_types)];
-
 use std::cast;
 use std::rt;
 use std::unstable::mutex::{StaticNativeMutex, NATIVE_MUTEX_INIT};
@@ -100,7 +98,6 @@ mod imp {
 
     use io::file::FileDesc;
 
-    #[allow(non_camel_case_types)]
     pub type signal = libc::c_int;
 
     pub fn new() -> (signal, signal) {
diff --git a/src/libnative/io/timer_other.rs b/src/libnative/io/timer_other.rs
index 9f332adb27b..0784b5ee048 100644
--- a/src/libnative/io/timer_other.rs
+++ b/src/libnative/io/timer_other.rs
@@ -46,8 +46,6 @@
 //!
 //! Note that all time units in this file are in *milliseconds*.
 
-#[allow(non_camel_case_types)];
-
 use std::comm::Data;
 use std::libc;
 use std::mem;
diff --git a/src/libnative/io/timer_timerfd.rs b/src/libnative/io/timer_timerfd.rs
index baafe3f4850..7feeaa4768c 100644
--- a/src/libnative/io/timer_timerfd.rs
+++ b/src/libnative/io/timer_timerfd.rs
@@ -28,8 +28,6 @@
 //!
 //! As with timer_other, all units in this file are in units of millseconds.
 
-#[allow(non_camel_case_types)];
-
 use std::comm::Data;
 use std::libc;
 use std::ptr;
diff --git a/src/libnative/lib.rs b/src/libnative/lib.rs
index c28a1175494..238e4c23b45 100644
--- a/src/libnative/lib.rs
+++ b/src/libnative/lib.rs
@@ -49,6 +49,7 @@
       html_favicon_url = "http://www.rust-lang.org/favicon.ico",
       html_root_url = "http://static.rust-lang.org/doc/master")];
 #[deny(unused_result, unused_must_use)];
+#[allow(non_camel_case_types)];
 
 // NB this crate explicitly does *not* allow glob imports, please seriously
 //    consider whether they're needed before adding that feature here (the
diff --git a/src/libstd/io/fs.rs b/src/libstd/io/fs.rs
index ffccb0e8cb1..5f070ef782b 100644
--- a/src/libstd/io/fs.rs
+++ b/src/libstd/io/fs.rs
@@ -663,6 +663,13 @@ mod test {
     use io;
     use ops::Drop;
 
+    macro_rules! check( ($e:expr) => (
+        match $e {
+            Ok(t) => t,
+            Err(e) => fail!("{} failed with: {}", stringify!($e), e),
+        }
+    ) )
+
     struct TempDir(Path);
 
     impl TempDir {
@@ -682,7 +689,7 @@ mod test {
             // Gee, seeing how we're testing the fs module I sure hope that we
             // at least implement this correctly!
             let TempDir(ref p) = *self;
-            io::fs::rmdir_recursive(p).unwrap();
+            check!(io::fs::rmdir_recursive(p));
         }
     }
 
@@ -690,7 +697,7 @@ mod test {
         use os;
         use rand;
         let ret = os::tmpdir().join(format!("rust-{}", rand::random::<u32>()));
-        io::fs::mkdir(&ret, io::UserRWX).unwrap();
+        check!(io::fs::mkdir(&ret, io::UserRWX));
         TempDir(ret)
     }
 
@@ -700,18 +707,18 @@ mod test {
         let filename = &tmpdir.join("file_rt_io_file_test.txt");
         {
             let mut write_stream = File::open_mode(filename, Open, ReadWrite);
-            write_stream.write(message.as_bytes()).unwrap();
+            check!(write_stream.write(message.as_bytes()));
         }
         {
             let mut read_stream = File::open_mode(filename, Open, Read);
             let mut read_buf = [0, .. 1028];
-            let read_str = match read_stream.read(read_buf).unwrap() {
+            let read_str = match check!(read_stream.read(read_buf)) {
                 -1|0 => fail!("shouldn't happen"),
-                n => str::from_utf8_owned(read_buf.slice_to(n).to_owned()).unwrap()
+                n => str::from_utf8(read_buf.slice_to(n).to_owned()).unwrap().to_owned()
             };
             assert_eq!(read_str, message.to_owned());
         }
-        unlink(filename).unwrap();
+        check!(unlink(filename));
     })
 
     iotest!(fn invalid_path_raises() {
@@ -734,20 +741,20 @@ mod test {
         let filename = &tmpdir.join("file_rt_io_file_test_positional.txt");
         {
             let mut rw_stream = File::open_mode(filename, Open, ReadWrite);
-            rw_stream.write(message.as_bytes()).unwrap();
+            check!(rw_stream.write(message.as_bytes()));
         }
         {
             let mut read_stream = File::open_mode(filename, Open, Read);
             {
                 let read_buf = read_mem.mut_slice(0, 4);
-                read_stream.read(read_buf).unwrap();
+                check!(read_stream.read(read_buf));
             }
             {
                 let read_buf = read_mem.mut_slice(4, 8);
-                read_stream.read(read_buf).unwrap();
+                check!(read_stream.read(read_buf));
             }
         }
-        unlink(filename).unwrap();
+        check!(unlink(filename));
         let read_str = str::from_utf8(read_mem).unwrap();
         assert_eq!(read_str, message);
     })
@@ -762,16 +769,16 @@ mod test {
         let filename = &tmpdir.join("file_rt_io_file_test_seeking.txt");
         {
             let mut rw_stream = File::open_mode(filename, Open, ReadWrite);
-            rw_stream.write(message.as_bytes()).unwrap();
+            check!(rw_stream.write(message.as_bytes()));
         }
         {
             let mut read_stream = File::open_mode(filename, Open, Read);
-            read_stream.seek(set_cursor as i64, SeekSet).unwrap();
-            tell_pos_pre_read = read_stream.tell().unwrap();
-            read_stream.read(read_mem).unwrap();
-            tell_pos_post_read = read_stream.tell().unwrap();
+            check!(read_stream.seek(set_cursor as i64, SeekSet));
+            tell_pos_pre_read = check!(read_stream.tell());
+            check!(read_stream.read(read_mem));
+            tell_pos_post_read = check!(read_stream.tell());
         }
-        unlink(filename).unwrap();
+        check!(unlink(filename));
         let read_str = str::from_utf8(read_mem).unwrap();
         assert_eq!(read_str, message.slice(4, 8));
         assert_eq!(tell_pos_pre_read, set_cursor);
@@ -788,15 +795,15 @@ mod test {
         let filename = &tmpdir.join("file_rt_io_file_test_seek_and_write.txt");
         {
             let mut rw_stream = File::open_mode(filename, Open, ReadWrite);
-            rw_stream.write(initial_msg.as_bytes()).unwrap();
-            rw_stream.seek(seek_idx as i64, SeekSet).unwrap();
-            rw_stream.write(overwrite_msg.as_bytes()).unwrap();
+            check!(rw_stream.write(initial_msg.as_bytes()));
+            check!(rw_stream.seek(seek_idx as i64, SeekSet));
+            check!(rw_stream.write(overwrite_msg.as_bytes()));
         }
         {
             let mut read_stream = File::open_mode(filename, Open, Read);
-            read_stream.read(read_mem).unwrap();
+            check!(read_stream.read(read_mem));
         }
-        unlink(filename).unwrap();
+        check!(unlink(filename));
         let read_str = str::from_utf8(read_mem).unwrap();
         assert!(read_str == final_msg.to_owned());
     })
@@ -812,24 +819,24 @@ mod test {
         let filename = &tmpdir.join("file_rt_io_file_test_seek_shakedown.txt");
         {
             let mut rw_stream = File::open_mode(filename, Open, ReadWrite);
-            rw_stream.write(initial_msg.as_bytes()).unwrap();
+            check!(rw_stream.write(initial_msg.as_bytes()));
         }
         {
             let mut read_stream = File::open_mode(filename, Open, Read);
 
-            read_stream.seek(-4, SeekEnd).unwrap();
-            read_stream.read(read_mem).unwrap();
+            check!(read_stream.seek(-4, SeekEnd));
+            check!(read_stream.read(read_mem));
             assert_eq!(str::from_utf8(read_mem).unwrap(), chunk_three);
 
-            read_stream.seek(-9, SeekCur).unwrap();
-            read_stream.read(read_mem).unwrap();
+            check!(read_stream.seek(-9, SeekCur));
+            check!(read_stream.read(read_mem));
             assert_eq!(str::from_utf8(read_mem).unwrap(), chunk_two);
 
-            read_stream.seek(0, SeekSet).unwrap();
-            read_stream.read(read_mem).unwrap();
+            check!(read_stream.seek(0, SeekSet));
+            check!(read_stream.read(read_mem));
             assert_eq!(str::from_utf8(read_mem).unwrap(), chunk_one);
         }
-        unlink(filename).unwrap();
+        check!(unlink(filename));
     })
 
     iotest!(fn file_test_stat_is_correct_on_is_file() {
@@ -840,34 +847,34 @@ mod test {
             let msg = "hw";
             fs.write(msg.as_bytes()).unwrap();
         }
-        let stat_res = stat(filename).unwrap();
+        let stat_res = check!(stat(filename));
         assert_eq!(stat_res.kind, io::TypeFile);
-        unlink(filename).unwrap();
+        check!(unlink(filename));
     })
 
     iotest!(fn file_test_stat_is_correct_on_is_dir() {
         let tmpdir = tmpdir();
         let filename = &tmpdir.join("file_stat_correct_on_is_dir");
-        mkdir(filename, io::UserRWX).unwrap();
-        let stat_res = filename.stat().unwrap();
+        check!(mkdir(filename, io::UserRWX));
+        let stat_res = check!(filename.stat());
         assert!(stat_res.kind == io::TypeDirectory);
-        rmdir(filename).unwrap();
+        check!(rmdir(filename));
     })
 
     iotest!(fn file_test_fileinfo_false_when_checking_is_file_on_a_directory() {
         let tmpdir = tmpdir();
         let dir = &tmpdir.join("fileinfo_false_on_dir");
-        mkdir(dir, io::UserRWX).unwrap();
+        check!(mkdir(dir, io::UserRWX));
         assert!(dir.is_file() == false);
-        rmdir(dir).unwrap();
+        check!(rmdir(dir));
     })
 
     iotest!(fn file_test_fileinfo_check_exists_before_and_after_file_creation() {
         let tmpdir = tmpdir();
         let file = &tmpdir.join("fileinfo_check_exists_b_and_a.txt");
-        File::create(file).write(bytes!("foo")).unwrap();
+        check!(File::create(file).write(bytes!("foo")));
         assert!(file.exists());
-        unlink(file).unwrap();
+        check!(unlink(file));
         assert!(!file.exists());
     })
 
@@ -875,10 +882,10 @@ mod test {
         let tmpdir = tmpdir();
         let dir = &tmpdir.join("before_and_after_dir");
         assert!(!dir.exists());
-        mkdir(dir, io::UserRWX).unwrap();
+        check!(mkdir(dir, io::UserRWX));
         assert!(dir.exists());
         assert!(dir.is_dir());
-        rmdir(dir).unwrap();
+        check!(rmdir(dir));
         assert!(!dir.exists());
     })
 
@@ -886,21 +893,21 @@ mod test {
         use std::str;
         let tmpdir = tmpdir();
         let dir = &tmpdir.join("di_readdir");
-        mkdir(dir, io::UserRWX).unwrap();
+        check!(mkdir(dir, io::UserRWX));
         let prefix = "foo";
         for n in range(0,3) {
             let f = dir.join(format!("{}.txt", n));
-            let mut w = File::create(&f).unwrap();
+            let mut w = check!(File::create(&f));
             let msg_str = (prefix + n.to_str().to_owned()).to_owned();
             let msg = msg_str.as_bytes();
-            w.write(msg).unwrap();
+            check!(w.write(msg));
         }
-        let files = readdir(dir).unwrap();
+        let files = check!(readdir(dir));
         let mut mem = [0u8, .. 4];
         for f in files.iter() {
             {
                 let n = f.filestem_str();
-                File::open(f).read(mem).unwrap();
+                check!(File::open(f).read(mem));
                 let read_str = str::from_utf8(mem).unwrap();
                 let expected = match n {
                     None|Some("") => fail!("really shouldn't happen.."),
@@ -908,13 +915,13 @@ mod test {
                 };
                 assert_eq!(expected.as_slice(), read_str);
             }
-            unlink(f).unwrap();
+            check!(unlink(f));
         }
-        rmdir(dir).unwrap();
+        check!(rmdir(dir));
     })
 
     iotest!(fn recursive_mkdir_slash() {
-        mkdir_recursive(&Path::new("/"), io::UserRWX).unwrap();
+        check!(mkdir_recursive(&Path::new("/"), io::UserRWX));
     })
 
     iotest!(fn unicode_path_is_dir() {
@@ -925,12 +932,12 @@ mod test {
 
         let mut dirpath = tmpdir.path().clone();
         dirpath.push(format!("test-가一ー你好"));
-        mkdir(&dirpath, io::UserRWX).unwrap();
+        check!(mkdir(&dirpath, io::UserRWX));
         assert!(dirpath.is_dir());
 
         let mut filepath = dirpath;
         filepath.push("unicode-file-\uac00\u4e00\u30fc\u4f60\u597d.rs");
-        File::create(&filepath).unwrap(); // ignore return; touch only
+        check!(File::create(&filepath)); // ignore return; touch only
         assert!(!filepath.is_dir());
         assert!(filepath.exists());
     })
@@ -942,7 +949,7 @@ mod test {
         let tmpdir = tmpdir();
         let unicode = tmpdir.path();
         let unicode = unicode.join(format!("test-각丁ー再见"));
-        mkdir(&unicode, io::UserRWX).unwrap();
+        check!(mkdir(&unicode, io::UserRWX));
         assert!(unicode.exists());
         assert!(!Path::new("test/unicode-bogus-path-각丁ー再见").exists());
     })
@@ -964,19 +971,19 @@ mod test {
         let input = tmpdir.join("in.txt");
         let out = tmpdir.join("out.txt");
 
-        File::create(&input).write(bytes!("hello")).unwrap();
-        copy(&input, &out).unwrap();
-        let contents = File::open(&out).read_to_end().unwrap();
+        check!(File::create(&input).write(bytes!("hello")));
+        check!(copy(&input, &out));
+        let contents = check!(File::open(&out).read_to_end());
         assert_eq!(contents.as_slice(), bytes!("hello"));
 
-        assert_eq!(input.stat().unwrap().perm, out.stat().unwrap().perm);
+        assert_eq!(check!(input.stat()).perm, check!(out.stat()).perm);
     })
 
     iotest!(fn copy_file_dst_dir() {
         let tmpdir = tmpdir();
         let out = tmpdir.join("out");
 
-        File::create(&out).unwrap();
+        check!(File::create(&out));
         match copy(&out, tmpdir.path()) {
             Ok(..) => fail!(), Err(..) => {}
         }
@@ -987,11 +994,11 @@ mod test {
         let input = tmpdir.join("in");
         let output = tmpdir.join("out");
 
-        File::create(&input).write("foo".as_bytes()).unwrap();
-        File::create(&output).write("bar".as_bytes()).unwrap();
-        copy(&input, &output).unwrap();
+        check!(File::create(&input).write("foo".as_bytes()));
+        check!(File::create(&output).write("bar".as_bytes()));
+        check!(copy(&input, &output));
 
-        assert_eq!(File::open(&output).read_to_end().unwrap(),
+        assert_eq!(check!(File::open(&output).read_to_end()),
                    (bytes!("foo")).to_owned());
     })
 
@@ -1010,13 +1017,13 @@ mod test {
         let input = tmpdir.join("in.txt");
         let out = tmpdir.join("out.txt");
 
-        File::create(&input).unwrap();
-        chmod(&input, io::UserRead).unwrap();
-        copy(&input, &out).unwrap();
-        assert!(out.stat().unwrap().perm & io::UserWrite == 0);
+        check!(File::create(&input));
+        check!(chmod(&input, io::UserRead));
+        check!(copy(&input, &out));
+        assert!(check!(out.stat()).perm & io::UserWrite == 0);
 
-        chmod(&input, io::UserFile).unwrap();
-        chmod(&out, io::UserFile).unwrap();
+        check!(chmod(&input, io::UserFile));
+        check!(chmod(&out, io::UserFile));
     })
 
     #[cfg(not(windows))] // FIXME(#10264) operation not permitted?
@@ -1025,13 +1032,13 @@ mod test {
         let input = tmpdir.join("in.txt");
         let out = tmpdir.join("out.txt");
 
-        File::create(&input).write("foobar".as_bytes()).unwrap();
-        symlink(&input, &out).unwrap();
+        check!(File::create(&input).write("foobar".as_bytes()));
+        check!(symlink(&input, &out));
         if cfg!(not(windows)) {
-            assert_eq!(lstat(&out).unwrap().kind, io::TypeSymlink);
+            assert_eq!(check!(lstat(&out)).kind, io::TypeSymlink);
         }
-        assert_eq!(stat(&out).unwrap().size, stat(&input).unwrap().size);
-        assert_eq!(File::open(&out).read_to_end().unwrap(),
+        assert_eq!(check!(stat(&out)).size, check!(stat(&input)).size);
+        assert_eq!(check!(File::open(&out).read_to_end()),
                    (bytes!("foobar")).to_owned());
     })
 
@@ -1039,8 +1046,8 @@ mod test {
     iotest!(fn symlink_noexist() {
         let tmpdir = tmpdir();
         // symlinks can point to things that don't exist
-        symlink(&tmpdir.join("foo"), &tmpdir.join("bar")).unwrap();
-        assert!(readlink(&tmpdir.join("bar")).unwrap() == tmpdir.join("foo"));
+        check!(symlink(&tmpdir.join("foo"), &tmpdir.join("bar")));
+        assert!(check!(readlink(&tmpdir.join("bar"))) == tmpdir.join("foo"));
     })
 
     iotest!(fn readlink_not_symlink() {
@@ -1056,14 +1063,14 @@ mod test {
         let input = tmpdir.join("in.txt");
         let out = tmpdir.join("out.txt");
 
-        File::create(&input).write("foobar".as_bytes()).unwrap();
-        link(&input, &out).unwrap();
+        check!(File::create(&input).write("foobar".as_bytes()));
+        check!(link(&input, &out));
         if cfg!(not(windows)) {
-            assert_eq!(lstat(&out).unwrap().kind, io::TypeFile);
-            assert_eq!(stat(&out).unwrap().unstable.nlink, 2);
+            assert_eq!(check!(lstat(&out)).kind, io::TypeFile);
+            assert_eq!(check!(stat(&out)).unstable.nlink, 2);
         }
-        assert_eq!(stat(&out).unwrap().size, stat(&input).unwrap().size);
-        assert_eq!(File::open(&out).read_to_end().unwrap(),
+        assert_eq!(check!(stat(&out)).size, check!(stat(&input)).size);
+        assert_eq!(check!(File::open(&out).read_to_end()),
                    (bytes!("foobar")).to_owned());
 
         // can't link to yourself
@@ -1082,62 +1089,62 @@ mod test {
         let tmpdir = tmpdir();
         let file = tmpdir.join("in.txt");
 
-        File::create(&file).unwrap();
-        assert!(stat(&file).unwrap().perm & io::UserWrite == io::UserWrite);
-        chmod(&file, io::UserRead).unwrap();
-        assert!(stat(&file).unwrap().perm & io::UserWrite == 0);
+        check!(File::create(&file));
+        assert!(check!(stat(&file)).perm & io::UserWrite == io::UserWrite);
+        check!(chmod(&file, io::UserRead));
+        assert!(check!(stat(&file)).perm & io::UserWrite == 0);
 
         match chmod(&tmpdir.join("foo"), io::UserRWX) {
             Ok(..) => fail!("wanted a failure"),
             Err(..) => {}
         }
 
-        chmod(&file, io::UserFile).unwrap();
+        check!(chmod(&file, io::UserFile));
     })
 
     iotest!(fn sync_doesnt_kill_anything() {
         let tmpdir = tmpdir();
         let path = tmpdir.join("in.txt");
 
-        let mut file = File::open_mode(&path, io::Open, io::ReadWrite).unwrap();
-        file.fsync().unwrap();
-        file.datasync().unwrap();
-        file.write(bytes!("foo")).unwrap();
-        file.fsync().unwrap();
-        file.datasync().unwrap();
+        let mut file = check!(File::open_mode(&path, io::Open, io::ReadWrite));
+        check!(file.fsync());
+        check!(file.datasync());
+        check!(file.write(bytes!("foo")));
+        check!(file.fsync());
+        check!(file.datasync());
         drop(file);
-    } #[ignore(cfg(windows))])
+    })
 
     iotest!(fn truncate_works() {
         let tmpdir = tmpdir();
         let path = tmpdir.join("in.txt");
 
-        let mut file = File::open_mode(&path, io::Open, io::ReadWrite).unwrap();
-        file.write(bytes!("foo")).unwrap();
-        file.fsync().unwrap();
+        let mut file = check!(File::open_mode(&path, io::Open, io::ReadWrite));
+        check!(file.write(bytes!("foo")));
+        check!(file.fsync());
 
         // Do some simple things with truncation
-        assert_eq!(stat(&path).unwrap().size, 3);
-        file.truncate(10).unwrap();
-        assert_eq!(stat(&path).unwrap().size, 10);
-        file.write(bytes!("bar")).unwrap();
-        file.fsync().unwrap();
-        assert_eq!(stat(&path).unwrap().size, 10);
-        assert_eq!(File::open(&path).read_to_end().unwrap(),
+        assert_eq!(check!(stat(&path)).size, 3);
+        check!(file.truncate(10));
+        assert_eq!(check!(stat(&path)).size, 10);
+        check!(file.write(bytes!("bar")));
+        check!(file.fsync());
+        assert_eq!(check!(stat(&path)).size, 10);
+        assert_eq!(check!(File::open(&path).read_to_end()),
                    (bytes!("foobar", 0, 0, 0, 0)).to_owned());
 
         // Truncate to a smaller length, don't seek, and then write something.
         // Ensure that the intermediate zeroes are all filled in (we're seeked
         // past the end of the file).
-        file.truncate(2).unwrap();
-        assert_eq!(stat(&path).unwrap().size, 2);
-        file.write(bytes!("wut")).unwrap();
-        file.fsync().unwrap();
-        assert_eq!(stat(&path).unwrap().size, 9);
-        assert_eq!(File::open(&path).read_to_end().unwrap(),
+        check!(file.truncate(2));
+        assert_eq!(check!(stat(&path)).size, 2);
+        check!(file.write(bytes!("wut")));
+        check!(file.fsync());
+        assert_eq!(check!(stat(&path)).size, 9);
+        assert_eq!(check!(File::open(&path).read_to_end()),
                    (bytes!("fo", 0, 0, 0, 0, "wut")).to_owned());
         drop(file);
-    } #[ignore(cfg(windows))]) // FIXME(#11638)
+    })
 
     iotest!(fn open_flavors() {
         let tmpdir = tmpdir();
@@ -1145,46 +1152,49 @@ mod test {
         match File::open_mode(&tmpdir.join("a"), io::Open, io::Read) {
             Ok(..) => fail!(), Err(..) => {}
         }
-        File::open_mode(&tmpdir.join("b"), io::Open, io::Write).unwrap();
-        File::open_mode(&tmpdir.join("c"), io::Open, io::ReadWrite).unwrap();
-        File::open_mode(&tmpdir.join("d"), io::Append, io::Write).unwrap();
-        File::open_mode(&tmpdir.join("e"), io::Append, io::ReadWrite).unwrap();
-        File::open_mode(&tmpdir.join("f"), io::Truncate, io::Write).unwrap();
-        File::open_mode(&tmpdir.join("g"), io::Truncate, io::ReadWrite).unwrap();
-
-        File::create(&tmpdir.join("h")).write("foo".as_bytes()).unwrap();
-        File::open_mode(&tmpdir.join("h"), io::Open, io::Read).unwrap();
+        check!(File::open_mode(&tmpdir.join("b"), io::Open, io::Write));
+        check!(File::open_mode(&tmpdir.join("c"), io::Open, io::ReadWrite));
+        check!(File::open_mode(&tmpdir.join("d"), io::Append, io::Write));
+        check!(File::open_mode(&tmpdir.join("e"), io::Append, io::ReadWrite));
+        check!(File::open_mode(&tmpdir.join("f"), io::Truncate, io::Write));
+        check!(File::open_mode(&tmpdir.join("g"), io::Truncate, io::ReadWrite));
+
+        check!(File::create(&tmpdir.join("h")).write("foo".as_bytes()));
+        check!(File::open_mode(&tmpdir.join("h"), io::Open, io::Read));
         {
-            let mut f = File::open_mode(&tmpdir.join("h"), io::Open,
-                                        io::Read).unwrap();
+            let mut f = check!(File::open_mode(&tmpdir.join("h"), io::Open,
+                                               io::Read));
             match f.write("wut".as_bytes()) {
                 Ok(..) => fail!(), Err(..) => {}
             }
         }
-        assert_eq!(stat(&tmpdir.join("h")).unwrap().size, 3);
+        assert!(check!(stat(&tmpdir.join("h"))).size == 3,
+                "write/stat failed");
         {
-            let mut f = File::open_mode(&tmpdir.join("h"), io::Append,
-                                        io::Write).unwrap();
-            f.write("bar".as_bytes()).unwrap();
+            let mut f = check!(File::open_mode(&tmpdir.join("h"), io::Append,
+                                               io::Write));
+            check!(f.write("bar".as_bytes()));
         }
-        assert_eq!(stat(&tmpdir.join("h")).unwrap().size, 6);
+        assert!(check!(stat(&tmpdir.join("h"))).size == 6,
+                "append didn't append");
         {
-            let mut f = File::open_mode(&tmpdir.join("h"), io::Truncate,
-                                        io::Write).unwrap();
-            f.write("bar".as_bytes()).unwrap();
+            let mut f = check!(File::open_mode(&tmpdir.join("h"), io::Truncate,
+                                               io::Write));
+            check!(f.write("bar".as_bytes()));
         }
-        assert_eq!(stat(&tmpdir.join("h")).unwrap().size, 3);
+        assert!(check!(stat(&tmpdir.join("h"))).size == 3,
+                "truncate didn't truncate");
     })
 
     #[test]
     fn utime() {
         let tmpdir = tmpdir();
         let path = tmpdir.join("a");
-        File::create(&path).unwrap();
+        check!(File::create(&path));
 
-        change_file_times(&path, 1000, 2000).unwrap();
-        assert_eq!(path.stat().unwrap().accessed, 1000);
-        assert_eq!(path.stat().unwrap().modified, 2000);
+        check!(change_file_times(&path, 1000, 2000));
+        assert_eq!(check!(path.stat()).accessed, 1000);
+        assert_eq!(check!(path.stat()).modified, 2000);
     }
 
     #[test]
@@ -1196,4 +1206,17 @@ mod test {
             Err(..) => {}
         }
     }
+
+    iotest!(fn binary_file() {
+        use rand::{rng, Rng};
+
+        let mut bytes = [0, ..1024];
+        rng().fill_bytes(bytes);
+
+        let tmpdir = tmpdir();
+
+        check!(File::create(&tmpdir.join("test")).write(bytes));
+        let actual = check!(File::open(&tmpdir.join("test")).read_to_end());
+        assert!(actual.as_slice() == bytes);
+    })
 }
diff --git a/src/libstd/io/net/unix.rs b/src/libstd/io/net/unix.rs
index c3e3d72c672..4545fea061b 100644
--- a/src/libstd/io/net/unix.rs
+++ b/src/libstd/io/net/unix.rs
@@ -137,16 +137,20 @@ mod tests {
     pub fn smalltest(server: proc(UnixStream), client: proc(UnixStream)) {
         let path1 = next_test_unix();
         let path2 = path1.clone();
-        let (port, chan) = Chan::new();
+
+        let mut acceptor = UnixListener::bind(&path1).listen();
 
         spawn(proc() {
-            port.recv();
-            client(UnixStream::connect(&path2).unwrap());
+            match UnixStream::connect(&path2) {
+                Ok(c) => client(c),
+                Err(e) => fail!("failed connect: {}", e),
+            }
         });
 
-        let mut acceptor = UnixListener::bind(&path1).listen();
-        chan.send(());
-        server(acceptor.accept().unwrap());
+        match acceptor.accept() {
+            Ok(c) => server(c),
+            Err(e) => fail!("failed accept: {}", e),
+        }
     }
 
     iotest!(fn bind_error() {
diff --git a/src/libstd/io/signal.rs b/src/libstd/io/signal.rs
index 32670fa7c2c..43419c751fc 100644
--- a/src/libstd/io/signal.rs
+++ b/src/libstd/io/signal.rs
@@ -146,22 +146,20 @@ impl Listener {
     }
 }
 
-#[cfg(test)]
-mod test {
+#[cfg(test, unix)]
+mod test_unix {
     use libc;
     use comm::Empty;
     use io::timer;
     use super::{Listener, Interrupt};
 
-    // kill is only available on Unixes
-    #[cfg(unix)]
     fn sigint() {
         unsafe {
             libc::funcs::posix88::signal::kill(libc::getpid(), libc::SIGINT);
         }
     }
 
-    #[test] #[cfg(unix, not(target_os="android"))] // FIXME(#10378)
+    #[test] #[cfg(not(target_os="android"))] // FIXME(#10378)
     fn test_io_signal_smoketest() {
         let mut signal = Listener::new();
         signal.register(Interrupt).unwrap();
@@ -173,7 +171,7 @@ mod test {
         }
     }
 
-    #[test] #[cfg(unix, not(target_os="android"))] // FIXME(#10378)
+    #[test] #[cfg(not(target_os="android"))] // FIXME(#10378)
     fn test_io_signal_two_signal_one_signum() {
         let mut s1 = Listener::new();
         let mut s2 = Listener::new();
@@ -191,7 +189,7 @@ mod test {
         }
     }
 
-    #[test] #[cfg(unix, not(target_os="android"))] // FIXME(#10378)
+    #[test] #[cfg(not(target_os="android"))] // FIXME(#10378)
     fn test_io_signal_unregister() {
         let mut s1 = Listener::new();
         let mut s2 = Listener::new();
@@ -202,15 +200,16 @@ mod test {
         timer::sleep(10);
         assert_eq!(s2.port.try_recv(), Empty);
     }
+}
+
+#[cfg(test, windows)]
+mod test_windows {
+    use super::{User1, Listener};
+    use result::{Ok, Err};
 
-    #[cfg(windows)]
     #[test]
     fn test_io_signal_invalid_signum() {
-        use io;
-        use super::User1;
-        use result::{Ok, Err};
         let mut s = Listener::new();
-        let mut called = false;
         match s.register(User1) {
             Ok(..) => {
                 fail!("Unexpected successful registry of signum {:?}", User1);
diff --git a/src/libstd/libc.rs b/src/libstd/libc.rs
index 73bf4a1e69a..07be753925f 100644
--- a/src/libstd/libc.rs
+++ b/src/libstd/libc.rs
@@ -1623,6 +1623,7 @@ pub mod consts {
             pub static O_NOINHERIT: c_int = 128;
 
             pub static ERROR_SUCCESS : c_int = 0;
+            pub static ERROR_INVALID_FUNCTION: c_int = 1;
             pub static ERROR_FILE_NOT_FOUND: c_int = 2;
             pub static ERROR_ACCESS_DENIED: c_int = 5;
             pub static ERROR_INVALID_HANDLE : c_int = 6;
@@ -1745,6 +1746,10 @@ pub mod consts {
             pub static OPEN_EXISTING: DWORD = 3;
             pub static TRUNCATE_EXISTING: DWORD = 5;
 
+            pub static FILE_APPEND_DATA: DWORD = 0x00000004;
+            pub static FILE_READ_DATA: DWORD = 0x00000001;
+            pub static FILE_WRITE_DATA: DWORD = 0x00000002;
+
             pub static FILE_ATTRIBUTE_ARCHIVE: DWORD = 0x20;
             pub static FILE_ATTRIBUTE_COMPRESSED: DWORD = 0x800;
             pub static FILE_ATTRIBUTE_DEVICE: DWORD = 0x40;
@@ -1791,6 +1796,18 @@ pub mod consts {
             pub static FILE_WRITE_ATTRIBUTES: DWORD = 0x00000100;
             pub static FILE_READ_ATTRIBUTES: DWORD = 0x00000080;
 
+            pub static STANDARD_RIGHTS_READ: DWORD = 0x20000;
+            pub static STANDARD_RIGHTS_WRITE: DWORD = 0x20000;
+            pub static FILE_WRITE_EA: DWORD = 0x00000010;
+            pub static FILE_READ_EA: DWORD = 0x00000008;
+            pub static FILE_GENERIC_READ: DWORD =
+                STANDARD_RIGHTS_READ | FILE_READ_DATA |
+                FILE_READ_ATTRIBUTES | FILE_READ_EA | SYNCHRONIZE;
+            pub static FILE_GENERIC_WRITE: DWORD =
+                STANDARD_RIGHTS_WRITE | FILE_WRITE_DATA |
+                FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA | FILE_APPEND_DATA |
+                SYNCHRONIZE;
+
             pub static FILE_BEGIN: DWORD = 0;
             pub static FILE_CURRENT: DWORD = 1;
             pub static FILE_END: DWORD = 2;
@@ -4231,6 +4248,7 @@ pub mod funcs {
 
         pub mod msvcrt {
             use libc::types::os::arch::c95::{c_int, c_long};
+            use libc::types::os::arch::c99::intptr_t;
 
             #[nolink]
             extern {
@@ -4239,6 +4257,10 @@ pub mod funcs {
 
                 #[link_name = "_get_osfhandle"]
                 pub fn get_osfhandle(fd: c_int) -> c_long;
+
+                #[link_name = "_open_osfhandle"]
+                pub fn open_osfhandle(osfhandle: intptr_t,
+                                      flags: c_int) -> c_int;
             }
         }
     }
diff --git a/src/libstd/path/posix.rs b/src/libstd/path/posix.rs
index d1af612e0ec..a8f7782fa46 100644
--- a/src/libstd/path/posix.rs
+++ b/src/libstd/path/posix.rs
@@ -698,8 +698,8 @@ mod tests {
         macro_rules! t(
             (s: $path:expr, $join:expr) => (
                 {
-                    let path = ($path);
-                    let join = ($join);
+                    let path = $path;
+                    let join = $join;
                     let mut p1 = Path::new(path);
                     let p2 = p1.clone();
                     p1.push(join);
diff --git a/src/libstd/path/windows.rs b/src/libstd/path/windows.rs
index 8902ab2edd7..10834aec64c 100644
--- a/src/libstd/path/windows.rs
+++ b/src/libstd/path/windows.rs
@@ -1433,8 +1433,8 @@ mod tests {
         macro_rules! t(
             (s: $path:expr, $join:expr) => (
                 {
-                    let path = ($path);
-                    let join = ($join);
+                    let path = $path;
+                    let join = $join;
                     let mut p1 = Path::new(path);
                     let p2 = p1.clone();
                     p1.push(join);
diff --git a/src/libstd/unstable/dynamic_lib.rs b/src/libstd/unstable/dynamic_lib.rs
index 84fa528ebf1..57dbc045a65 100644
--- a/src/libstd/unstable/dynamic_lib.rs
+++ b/src/libstd/unstable/dynamic_lib.rs
@@ -82,9 +82,7 @@ impl DynamicLibrary {
 #[cfg(test)]
 mod test {
     use super::*;
-    use option::*;
-    use result::*;
-    use path::*;
+    use prelude::*;
     use libc;
 
     #[test]
diff --git a/src/libstd/vec.rs b/src/libstd/vec.rs
index cf49ea53562..ce719c6d0b8 100644
--- a/src/libstd/vec.rs
+++ b/src/libstd/vec.rs
@@ -3529,7 +3529,7 @@ mod tests {
         let mut v: [uint, .. 0] = [];
         v.sort();
 
-        let mut v = [0xDEADBEEF];
+        let mut v = [0xDEADBEEFu];
         v.sort();
         assert_eq!(v, [0xDEADBEEF]);
     }