iovec-0.1.2/.gitignore010064400007650000024000000000221305514453700130270ustar0000000000000000target Cargo.lock iovec-0.1.2/.travis.yml010064400007650000024000000006721323266610300131560ustar0000000000000000--- language: rust sudo: false matrix: include: # Oldest supported Rust (this should track Mio) - rust: 1.9.0 - rust: stable # OS X support - rust: stable os: osx # WebAssembly support. - rust: beta script: - rustup target add wasm32-unknown-unknown - cargo build --target=wasm32-unknown-unknown script: - cargo build - cargo test notifications: email: on_success: never iovec-0.1.2/appveyor.yml010064400007650000024000000004611305534320300134250ustar0000000000000000environment: matrix: - TARGET: x86_64-pc-windows-msvc install: - curl -sSf -o rustup-init.exe https://win.rustup.rs/ - rustup-init.exe -y --default-host %TARGET% - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin - rustc -V - cargo -V build: false test_script: - cargo build - cargo test iovec-0.1.2/Cargo.toml.orig010064400007650000024000000010771323266610300137340ustar0000000000000000[package] name = "iovec" version = "0.1.2" authors = ["Carl Lerche "] license = "MIT/Apache-2.0" readme = "README.md" keywords = ["scatter", "gather", "vectored", "io", "networking"] repository = "https://github.com/carllerche/iovec" homepage = "https://github.com/carllerche/iovec" documentation = "https://docs.rs/iovec" description = """ Portable buffer type for scatter/gather I/O operations """ categories = ["network-programming", "api-bindings"] [target.'cfg(unix)'.dependencies] libc = "0.2" [target.'cfg(windows)'.dependencies] winapi = "0.2" iovec-0.1.2/Cargo.toml0000644000000021230000000000000101740ustar00# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO # # When uploading crates to the registry Cargo will automatically # "normalize" Cargo.toml files for maximal compatibility # with all versions of Cargo and also rewrite `path` dependencies # to registry (e.g. crates.io) dependencies # # If you believe there's an error in this file please file an # issue against the rust-lang/cargo repository. If you're # editing this file be aware that the upstream Cargo.toml # will likely look very different (and much more reasonable) [package] name = "iovec" version = "0.1.2" authors = ["Carl Lerche "] description = "Portable buffer type for scatter/gather I/O operations\n" homepage = "https://github.com/carllerche/iovec" documentation = "https://docs.rs/iovec" readme = "README.md" keywords = ["scatter", "gather", "vectored", "io", "networking"] categories = ["network-programming", "api-bindings"] license = "MIT/Apache-2.0" repository = "https://github.com/carllerche/iovec" [target."cfg(unix)".dependencies.libc] version = "0.2" [target."cfg(windows)".dependencies.winapi] version = "0.2" iovec-0.1.2/CHANGELOG.md010064400007650000024000000003321323266616200126540ustar0000000000000000# 0.1.2 (January 26th, 2018) * Add support for non-windows/unix targets (#10) # 0.1.1 (October 5th, 2017) * Fix soundness bug: Assert slice lengths are always > 0 (#5) # 0.1.0 (March 14th, 2017) * Initial release iovec-0.1.2/LICENSE-APACHE010064400007650000024000000251171305533715400127760ustar0000000000000000 Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright 2017 Carl Lerche Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. iovec-0.1.2/LICENSE-MIT010064400007650000024000000020371323266625700125100ustar0000000000000000Copyright (c) 2017 Carl Lerche Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. iovec-0.1.2/README.md010064400007650000024000000014611305533730500123230ustar0000000000000000# IoVec A specialized byte slice type for performing vectored I/O operations. [![Crates.io](https://img.shields.io/crates/v/iovec.svg?maxAge=2592000)](https://crates.io/crates/iovec) [![Build Status](https://travis-ci.org/carllerche/iovec.svg?branch=master)](https://travis-ci.org/carllerche/iovec) [Documentation](https://docs.rs/iovec) ## Usage To use `iovec`, first add this to your `Cargo.toml`: ```toml [dependencies] iovec = "0.1" ``` Next, add this to your crate: ```rust extern crate iovec; use iovec::IoVec; ``` For more detail, see [documentation](https://docs.rs/iovec). # License `iovec` is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), with portions covered by various BSD-like licenses. See LICENSE-APACHE, and LICENSE-MIT for details. iovec-0.1.2/src/lib.rs010064400007650000024000000103741323266571000127530ustar0000000000000000//! A specialized byte slice type for performing vectored I/O operations. //! //! For more detail, see [`IoVec`] documentation. //! //! [`IoVec`]: struct.IoVec.html #[cfg(unix)] extern crate libc; #[cfg(windows)] extern crate winapi; mod sys; use std::{ops, mem}; #[cfg(unix)] pub mod unix; /// Max length of an `IoVec` slice. /// /// Attempts to convert slices longer than this value will result in a panic. pub const MAX_LENGTH: usize = sys::MAX_LENGTH; /// A specialized byte slice type for performing vectored I/O operations. /// /// On all systems, the types needed to perform vectored I/O systems have the /// same size as Rust's [`slice`]. However, the layout is not necessarily the /// same. `IoVec` provides a portable compatibility layer. /// /// The `IoVec` behaves like a Rust [`slice`], providing the same functions. /// It also provides conversion functions to and from the OS specific vectored /// types. /// /// [`slice`]: https://doc.rust-lang.org/std/primitive.slice.html /// /// # Examples /// /// ``` /// use iovec::IoVec; /// /// let mut data = vec![]; /// data.extend_from_slice(b"hello"); /// /// let iovec: &IoVec = data.as_slice().into(); /// /// assert_eq!(&iovec[..], &b"hello"[..]); /// ``` /// /// # Panics /// /// Attempting to convert a zero-length slice or a slice longer than /// [`MAX_LENGTH`] to an `IoVec` will result in a panic. /// /// [`MAX_LENGTH`]: constant.MAX_LENGTH.html pub struct IoVec { sys: sys::IoVec, } impl IoVec { pub fn from_bytes(slice: &[u8]) -> Option<&IoVec> { if slice.len() == 0 { return None } unsafe { let iovec: &sys::IoVec = slice.into(); Some(mem::transmute(iovec)) } } pub fn from_bytes_mut(slice: &mut [u8]) -> Option<&mut IoVec> { if slice.len() == 0 { return None } unsafe { let iovec: &mut sys::IoVec = slice.into(); Some(mem::transmute(iovec)) } } #[deprecated(since = "0.1.0", note = "deref instead")] #[doc(hidden)] pub fn as_bytes(&self) -> &[u8] { &**self } #[deprecated(since = "0.1.0", note = "deref instead")] #[doc(hidden)] pub fn as_mut_bytes(&mut self) -> &mut [u8] { &mut **self } } impl ops::Deref for IoVec { type Target = [u8]; fn deref(&self) -> &[u8] { &self.sys.as_ref() } } impl ops::DerefMut for IoVec { fn deref_mut(&mut self) -> &mut [u8] { self.sys.as_mut() } } #[doc(hidden)] impl<'a> From<&'a [u8]> for &'a IoVec { fn from(bytes: &'a [u8]) -> &'a IoVec { IoVec::from_bytes(bytes) .expect("this crate accidentally accepted 0-sized slices \ originally but this was since discovered as a soundness \ hole, it's recommended to use the `from_bytes` \ function instead") } } #[doc(hidden)] impl<'a> From<&'a mut [u8]> for &'a mut IoVec { fn from(bytes: &'a mut [u8]) -> &'a mut IoVec { IoVec::from_bytes_mut(bytes) .expect("this crate accidentally accepted 0-sized slices \ originally but this was since discovered as a soundness \ hole, it's recommended to use the `from_bytes_mut` \ function instead") } } #[doc(hidden)] impl<'a> Default for &'a IoVec { fn default() -> Self { panic!("this implementation was accidentally provided but is \ unfortunately unsound, it's recommended to stop using \ `IoVec::default` or construct a vector with a nonzero length"); } } #[doc(hidden)] impl<'a> Default for &'a mut IoVec { fn default() -> Self { panic!("this implementation was accidentally provided but is \ unfortunately unsound, it's recommended to stop using \ `IoVec::default` or construct a vector with a nonzero length"); } } #[cfg(test)] mod test { use super::IoVec; #[test] fn convert_ref() { let buf: &IoVec = (&b"hello world"[..]).into(); assert_eq!(buf[..], b"hello world"[..]); } #[test] fn convert_mut() { let mut buf: Vec = b"hello world".to_vec(); let buf: &mut IoVec = (&mut buf[..]).into(); assert_eq!(buf[..], b"hello world"[..]); } } iovec-0.1.2/src/sys/mod.rs010064400007650000024000000005051323266610300135720ustar0000000000000000#[cfg(unix)] mod unix; #[cfg(unix)] pub use self::unix::{ IoVec, MAX_LENGTH, }; #[cfg(windows)] mod windows; #[cfg(windows)] pub use self::windows::{ IoVec, MAX_LENGTH, }; #[cfg(not(any(windows, unix)))] mod unknown; #[cfg(not(any(windows, unix)))] pub use self::unknown::{ IoVec, MAX_LENGTH, }; iovec-0.1.2/src/sys/unix.rs010064400007650000024000000022341323266571000140020ustar0000000000000000use libc; use std::{mem, slice, usize}; pub struct IoVec { inner: [u8], } pub const MAX_LENGTH: usize = usize::MAX; impl IoVec { pub fn as_ref(&self) -> &[u8] { unsafe { let vec = self.iovec(); slice::from_raw_parts(vec.iov_base as *const u8, vec.iov_len) } } pub fn as_mut(&mut self) -> &mut [u8] { unsafe { let vec = self.iovec(); slice::from_raw_parts_mut(vec.iov_base as *mut u8, vec.iov_len) } } unsafe fn iovec(&self) -> libc::iovec { mem::transmute(&self.inner) } } impl<'a> From<&'a [u8]> for &'a IoVec { fn from(src: &'a [u8]) -> Self { assert!(src.len() > 0); unsafe { mem::transmute(libc::iovec { iov_base: src.as_ptr() as *mut _, iov_len: src.len(), }) } } } impl<'a> From<&'a mut [u8]> for &'a mut IoVec { fn from(src: &'a mut [u8]) -> Self { assert!(src.len() > 0); unsafe { mem::transmute(libc::iovec { iov_base: src.as_ptr() as *mut _, iov_len: src.len(), }) } } } iovec-0.1.2/src/sys/unknown.rs010064400007650000024000000022671323266610300145210ustar0000000000000000use std::{mem, slice, usize}; #[derive(Clone)] pub struct WasmIoVec { ptr: *const u8, len: usize, } pub struct IoVec { inner: [u8], } pub const MAX_LENGTH: usize = usize::MAX; impl IoVec { pub fn as_ref(&self) -> &[u8] { unsafe { let vec = self.iovec(); slice::from_raw_parts(vec.ptr as *const u8, vec.len) } } pub fn as_mut(&mut self) -> &mut [u8] { unsafe { let vec = self.iovec(); slice::from_raw_parts_mut(vec.ptr as *mut u8, vec.len) } } unsafe fn iovec(&self) -> WasmIoVec { mem::transmute(&self.inner) } } impl<'a> From<&'a [u8]> for &'a IoVec { fn from(src: &'a [u8]) -> Self { assert!(src.len() > 0); unsafe { mem::transmute(WasmIoVec { ptr: src.as_ptr() as *mut _, len: src.len(), }) } } } impl<'a> From<&'a mut [u8]> for &'a mut IoVec { fn from(src: &'a mut [u8]) -> Self { assert!(src.len() > 0); unsafe { mem::transmute(WasmIoVec { ptr: src.as_ptr() as *mut _, len: src.len(), }) } } } iovec-0.1.2/src/sys/windows.rs010064400007650000024000000023761323266571000145200ustar0000000000000000use winapi::{WSABUF, DWORD}; use std::{mem, slice, u32}; pub struct IoVec { inner: [u8], } pub const MAX_LENGTH: usize = u32::MAX as usize; impl IoVec { pub fn as_ref(&self) -> &[u8] { unsafe { let vec = self.wsabuf(); slice::from_raw_parts(vec.buf as *const u8, vec.len as usize) } } pub fn as_mut(&mut self) -> &mut [u8] { unsafe { let vec = self.wsabuf(); slice::from_raw_parts_mut(vec.buf as *mut u8, vec.len as usize) } } unsafe fn wsabuf(&self) -> WSABUF { mem::transmute(&self.inner) } } impl<'a> From<&'a [u8]> for &'a IoVec { fn from(src: &'a [u8]) -> Self { assert!(src.len() > 0); assert!(src.len() <= MAX_LENGTH); unsafe { mem::transmute(WSABUF { buf: src.as_ptr() as *mut _, len: src.len() as DWORD, }) } } } impl<'a> From<&'a mut [u8]> for &'a mut IoVec { fn from(src: &'a mut [u8]) -> Self { assert!(src.len() > 0); assert!(src.len() <= MAX_LENGTH); unsafe { mem::transmute(WSABUF { buf: src.as_ptr() as *mut _, len: src.len() as DWORD, }) } } } iovec-0.1.2/src/unix.rs010064400007650000024000000031041323266571000131610ustar0000000000000000//! IoVec extensions for Unix platforms. //! //! These functions provide conversions to unix specific representations of the //! vectored data. //! //! # Examples //! //! ``` //! use iovec::IoVec; //! use iovec::unix; //! //! let a = b"hello".to_vec(); //! let b = b"world".to_vec(); //! //! let bufs: &[&IoVec] = &[(&a[..]).into(), (&b[..]).into()]; //! let os_bufs = unix::as_os_slice(&bufs[..]); //! //! // Use the `os_bufs` slice with `writev`. //! ``` use IoVec; use libc; use std::mem; /// Convert a slice of `IoVec` refs to a slice of `libc::iovec`. /// /// The return value can be passed to `writev` bindings. /// /// # Examples /// /// ``` /// use iovec::IoVec; /// use iovec::unix; /// /// let a = b"hello".to_vec(); /// let b = b"world".to_vec(); /// /// let bufs: &[&IoVec] = &[a[..].into(), b[..].into()]; /// let os_bufs = unix::as_os_slice(bufs); /// /// // Use the `os_bufs` slice with `writev`. /// ``` pub fn as_os_slice<'a>(iov: &'a [&IoVec]) -> &'a [libc::iovec] { unsafe { mem::transmute(iov) } } /// Convert a mutable slice of `IoVec` refs to a mutable slice of `libc::iovec`. /// /// The return value can be passed to `readv` bindings. /// /// # Examples /// /// ``` /// use iovec::IoVec; /// use iovec::unix; /// /// let mut a = [0; 10]; /// let mut b = [0; 10]; /// /// let bufs: &mut [&mut IoVec] = &mut [(&mut a[..]).into(), (&mut b[..]).into()]; /// let os_bufs = unix::as_os_slice_mut(bufs); /// /// // Use the `os_bufs` slice with `readv`. /// ``` pub fn as_os_slice_mut<'a>(iov: &'a mut [&mut IoVec]) -> &'a mut [libc::iovec] { unsafe { mem::transmute(iov) } } iovec-0.1.2/src/windows.rs010064400007650000024000000000001305517651500136630ustar0000000000000000