1 /// Unix-specific extensions to wrappers in `fs_err` for `std::fs` types. 2 pub mod fs { 3 use std::io; 4 use std::path::Path; 5 6 use crate::SourceDestError; 7 use crate::SourceDestErrorKind; 8 9 /// Creates a new symbolic link on the filesystem. 10 /// 11 /// Wrapper for [`std::os::unix::fs::symlink`](https://doc.rust-lang.org/std/os/unix/fs/fn.symlink.html) symlink<P: AsRef<Path>, Q: AsRef<Path>>(src: P, dst: Q) -> io::Result<()>12 pub fn symlink<P: AsRef<Path>, Q: AsRef<Path>>(src: P, dst: Q) -> io::Result<()> { 13 let src = src.as_ref(); 14 let dst = dst.as_ref(); 15 std::os::unix::fs::symlink(src, dst) 16 .map_err(|err| SourceDestError::build(err, SourceDestErrorKind::Symlink, src, dst)) 17 } 18 19 /// Wrapper for [`std::os::unix::fs::FileExt`](https://doc.rust-lang.org/std/os/unix/fs/trait.FileExt.html). 20 /// 21 /// The std traits might be extended in the future (See issue [#49961](https://github.com/rust-lang/rust/issues/49961#issuecomment-382751777)). 22 /// This trait is sealed and can not be implemented by other crates. 23 pub trait FileExt: crate::Sealed { 24 /// Wrapper for [`FileExt::read_at`](https://doc.rust-lang.org/std/os/unix/fs/trait.FileExt.html#tymethod.read_at) read_at(&self, buf: &mut [u8], offset: u64) -> io::Result<usize>25 fn read_at(&self, buf: &mut [u8], offset: u64) -> io::Result<usize>; 26 /// Wrapper for [`FileExt::write_at`](https://doc.rust-lang.org/std/os/unix/fs/trait.FileExt.html#tymethod.write_at) write_at(&self, buf: &[u8], offset: u64) -> io::Result<usize>27 fn write_at(&self, buf: &[u8], offset: u64) -> io::Result<usize>; 28 } 29 30 /// Wrapper for [`std::os::unix::fs::OpenOptionsExt`](https://doc.rust-lang.org/std/os/unix/fs/trait.OpenOptionsExt.html) 31 /// 32 /// The std traits might be extended in the future (See issue [#49961](https://github.com/rust-lang/rust/issues/49961#issuecomment-382751777)). 33 /// This trait is sealed and can not be implemented by other crates. 34 pub trait OpenOptionsExt: crate::Sealed { 35 /// Wrapper for [`OpenOptionsExt::mode`](https://doc.rust-lang.org/std/os/unix/fs/trait.OpenOptionsExt.html#tymethod.mode) mode(&mut self, mode: u32) -> &mut Self36 fn mode(&mut self, mode: u32) -> &mut Self; 37 /// Wrapper for [`OpenOptionsExt::custom_flags`](https://doc.rust-lang.org/std/os/unix/fs/trait.OpenOptionsExt.html#tymethod.custom_flags) custom_flags(&mut self, flags: i32) -> &mut Self38 fn custom_flags(&mut self, flags: i32) -> &mut Self; 39 } 40 } 41