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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your // option. This file may not be copied, modified, or distributed // except according to those terms. //! Windows-specific extensions for the primitives in `std::fs` #![stable(feature = "rust1", since = "1.0.0")] use prelude::v1::*; use fs::{OpenOptions, Metadata}; use io; use path::Path; use sys; use sys_common::{AsInnerMut, AsInner}; /// Windows-specific extensions to `OpenOptions` #[unstable(feature = "open_options_ext", reason = "may require more thought/methods")] pub trait OpenOptionsExt { /// Overrides the `dwDesiredAccess` argument to the call to `CreateFile` /// with the specified value. fn desired_access(&mut self, access: u32) -> &mut Self; /// Overrides the `dwCreationDisposition` argument to the call to /// `CreateFile` with the specified value. /// /// This will override any values of the standard `create` flags, for /// example. fn creation_disposition(&mut self, val: u32) -> &mut Self; /// Overrides the `dwFlagsAndAttributes` argument to the call to /// `CreateFile` with the specified value. /// /// This will override any values of the standard flags on the /// `OpenOptions` structure. fn flags_and_attributes(&mut self, val: u32) -> &mut Self; /// Overrides the `dwShareMode` argument to the call to `CreateFile` with /// the specified value. /// /// This will override any values of the standard flags on the /// `OpenOptions` structure. fn share_mode(&mut self, val: u32) -> &mut Self; } impl OpenOptionsExt for OpenOptions { fn desired_access(&mut self, access: u32) -> &mut OpenOptions { self.as_inner_mut().desired_access(access); self } fn creation_disposition(&mut self, access: u32) -> &mut OpenOptions { self.as_inner_mut().creation_disposition(access); self } fn flags_and_attributes(&mut self, access: u32) -> &mut OpenOptions { self.as_inner_mut().flags_and_attributes(access); self } fn share_mode(&mut self, access: u32) -> &mut OpenOptions { self.as_inner_mut().share_mode(access); self } } /// Extension methods for `fs::Metadata` to access the raw fields contained /// within. #[stable(feature = "metadata_ext", since = "1.1.0")] pub trait MetadataExt { /// Returns the value of the `dwFileAttributes` field of this metadata. /// /// This field contains the file system attribute information for a file /// or directory. #[stable(feature = "metadata_ext", since = "1.1.0")] fn file_attributes(&self) -> u32; /// Returns the value of the `ftCreationTime` field of this metadata. /// /// The returned 64-bit value represents the number of 100-nanosecond /// intervals since January 1, 1601 (UTC). #[stable(feature = "metadata_ext", since = "1.1.0")] fn creation_time(&self) -> u64; /// Returns the value of the `ftLastAccessTime` field of this metadata. /// /// The returned 64-bit value represents the number of 100-nanosecond /// intervals since January 1, 1601 (UTC). #[stable(feature = "metadata_ext", since = "1.1.0")] fn last_access_time(&self) -> u64; /// Returns the value of the `ftLastWriteTime` field of this metadata. /// /// The returned 64-bit value represents the number of 100-nanosecond /// intervals since January 1, 1601 (UTC). #[stable(feature = "metadata_ext", since = "1.1.0")] fn last_write_time(&self) -> u64; /// Returns the value of the `nFileSize{High,Low}` fields of this /// metadata. /// /// The returned value does not have meaning for directories. #[stable(feature = "metadata_ext", since = "1.1.0")] fn file_size(&self) -> u64; } #[stable(feature = "metadata_ext", since = "1.1.0")] impl MetadataExt for Metadata { fn file_attributes(&self) -> u32 { self.as_inner().attrs() } fn creation_time(&self) -> u64 { self.as_inner().created() } fn last_access_time(&self) -> u64 { self.as_inner().accessed() } fn last_write_time(&self) -> u64 { self.as_inner().modified() } fn file_size(&self) -> u64 { self.as_inner().size() } } /// Creates a new file symbolic link on the filesystem. /// /// The `dst` path will be a file symbolic link pointing to the `src` /// path. /// /// # Examples /// /// ```ignore /// use std::os::windows::fs; /// /// # fn foo() -> std::io::Result<()> { /// try!(fs::symlink_file("a.txt", "b.txt")); /// # Ok(()) /// # } /// ``` #[stable(feature = "symlink", since = "1.1.0")] pub fn symlink_file<P: AsRef<Path>, Q: AsRef<Path>>(src: P, dst: Q) -> io::Result<()> { sys::fs::symlink_inner(src.as_ref(), dst.as_ref(), false) } /// Creates a new directory symlink on the filesystem. /// /// The `dst` path will be a directory symbolic link pointing to the `src` /// path. /// /// # Examples /// /// ```ignore /// use std::os::windows::fs; /// /// # fn foo() -> std::io::Result<()> { /// try!(fs::symlink_file("a", "b")); /// # Ok(()) /// # } /// ``` #[stable(feature = "symlink", since = "1.1.0")] pub fn symlink_dir<P: AsRef<Path>, Q: AsRef<Path>>(src: P, dst: Q) -> io::Result<()> { sys::fs::symlink_inner(src.as_ref(), dst.as_ref(), true) }