├── .github ├── CODE_OF_CONDUCT.md ├── CONTRIBUTING.md └── workflows │ └── ci.yaml ├── .gitignore ├── Cargo.toml ├── LICENSE-APACHE ├── LICENSE-MIT ├── README.md ├── examples └── stdio.rs ├── src └── lib.rs └── tests └── test.rs /.github/CODE_OF_CONDUCT.md: -------------------------------------------------------------------------------- 1 | # Contributor Covenant Code of Conduct 2 | 3 | ## Our Pledge 4 | 5 | In the interest of fostering an open and welcoming environment, we as 6 | contributors and maintainers pledge to making participation in our project and 7 | our community a harassment-free experience for everyone, regardless of age, body 8 | size, disability, ethnicity, gender identity and expression, level of 9 | experience, 10 | education, socio-economic status, nationality, personal appearance, race, 11 | religion, or sexual identity and orientation. 12 | 13 | ## Our Standards 14 | 15 | Examples of behavior that contributes to creating a positive environment 16 | include: 17 | 18 | - Using welcoming and inclusive language 19 | - Being respectful of differing viewpoints and experiences 20 | - Gracefully accepting constructive criticism 21 | - Focusing on what is best for the community 22 | - Showing empathy towards other community members 23 | 24 | Examples of unacceptable behavior by participants include: 25 | 26 | - The use of sexualized language or imagery and unwelcome sexual attention or 27 | advances 28 | - Trolling, insulting/derogatory comments, and personal or political attacks 29 | - Public or private harassment 30 | - Publishing others' private information, such as a physical or electronic 31 | address, without explicit permission 32 | - Other conduct which could reasonably be considered inappropriate in a 33 | professional setting 34 | 35 | 36 | ## Our Responsibilities 37 | 38 | Project maintainers are responsible for clarifying the standards of acceptable 39 | behavior and are expected to take appropriate and fair corrective action in 40 | response to any instances of unacceptable behavior. 41 | 42 | Project maintainers have the right and responsibility to remove, edit, or 43 | reject comments, commits, code, wiki edits, issues, and other contributions 44 | that are not aligned to this Code of Conduct, or to ban temporarily or 45 | permanently any contributor for other behaviors that they deem inappropriate, 46 | threatening, offensive, or harmful. 47 | 48 | ## Scope 49 | 50 | This Code of Conduct applies both within project spaces and in public spaces 51 | when an individual is representing the project or its community. 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No contribution is too small and all 7 | contributions are valued. 8 | 9 | This guide explains the process for contributing to the project's GitHub 10 | Repository. 11 | 12 | - [Code of Conduct](#code-of-conduct) 13 | - [Bad Actors](#bad-actors) 14 | 15 | ## Code of Conduct 16 | The project has a [Code of Conduct](./CODE_OF_CONDUCT.md) that *all* 17 | contributors are expected to follow. This code describes the *minimum* behavior 18 | expectations for all contributors. 19 | 20 | As a contributor, how you choose to act and interact towards your 21 | fellow contributors, as well as to the community, will reflect back not only 22 | on yourself but on the project as a whole. The Code of Conduct is designed and 23 | intended, above all else, to help establish a culture within the project that 24 | allows anyone and everyone who wants to contribute to feel safe doing so. 25 | 26 | Should any individual act in any way that is considered in violation of the 27 | [Code of Conduct](./CODE_OF_CONDUCT.md), corrective actions will be taken. 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In doing so, bad actors 46 | alienate other contributors, discourage collaboration, and generally reflect 47 | poorly on the project as a whole. 48 | 49 | Being a bad actor may be intentional or unintentional. Typically, unintentional 50 | bad behavior can be easily corrected by being quick to apologize and correct 51 | course *even if you are not entirely convinced you need to*. Giving other 52 | contributors the benefit of the doubt and having a sincere willingness to admit 53 | that you *might* be wrong is critical for any successful open collaboration. 54 | 55 | Don't be a bad actor. 56 | -------------------------------------------------------------------------------- /.github/workflows/ci.yaml: -------------------------------------------------------------------------------- 1 | name: CI 2 | 3 | on: 4 | pull_request: 5 | push: 6 | branches: 7 | - staging 8 | - trying 9 | 10 | env: 11 | RUSTFLAGS: -Dwarnings 12 | 13 | jobs: 14 | build_and_test: 15 | name: Build and test 16 | runs-on: ${{ matrix.os }} 17 | strategy: 18 | matrix: 19 | os: [ubuntu-latest, windows-latest, macOS-latest] 20 | rust: [stable] 21 | 22 | steps: 23 | - uses: actions/checkout@master 24 | 25 | - name: Install ${{ matrix.rust }} 26 | uses: actions-rs/toolchain@v1 27 | with: 28 | toolchain: ${{ matrix.rust }} 29 | override: true 30 | 31 | - name: check 32 | uses: actions-rs/cargo@v1 33 | with: 34 | command: check 35 | args: --all --bins --examples 36 | 37 | - name: tests 38 | uses: actions-rs/cargo@v1 39 | with: 40 | command: test 41 | args: --all 42 | 43 | check_fmt_and_docs: 44 | name: Checking fmt and docs 45 | runs-on: ubuntu-latest 46 | steps: 47 | - uses: actions/checkout@master 48 | 49 | - uses: actions-rs/toolchain@v1 50 | with: 51 | toolchain: stable 52 | profile: minimal 53 | components: rustfmt 54 | 55 | - name: fmt 56 | run: cargo fmt --all -- --check 57 | 58 | - name: Docs 59 | run: cargo doc 60 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | coverage/ 2 | target/ 3 | tmp/ 4 | dist/ 5 | npm-debug.log* 6 | Cargo.lock 7 | .DS_Store 8 | -------------------------------------------------------------------------------- /Cargo.toml: -------------------------------------------------------------------------------- 1 | [package] 2 | name = "duplexify" 3 | version = "1.2.2" 4 | license = "MIT OR Apache-2.0" 5 | repository = "https://github.com/async-rs/duplexify" 6 | documentation = "https://docs.rs/duplexify" 7 | description = "Combine a reader + writer into a duplex of Read + Write." 8 | keywords = ["duplex", "stream", "async", "futures", "io"] 9 | categories = ["asynchronous", "development-tools", "filesystem", "os"] 10 | authors = ["Yoshua Wuyts "] 11 | readme = "README.md" 12 | edition = "2018" 13 | 14 | [dependencies] 15 | async-std = "1.6.3" 16 | pin-project-lite = "0.1.7" 17 | -------------------------------------------------------------------------------- /LICENSE-APACHE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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duplexify

2 |
3 | 4 | Combine a reader + writer into a duplex of Read + Write. 5 | 6 |
7 | 8 |
9 | 10 |
11 | 12 | 13 | Crates.io version 15 | 16 | 17 | 18 | Download 20 | 21 | 22 | 23 | docs.rs docs 25 | 26 |
27 | 28 |
29 |

30 | 31 | API Docs 32 | 33 | | 34 | 35 | Releases 36 | 37 | | 38 | 39 | Contributing 40 | 41 |

42 |
43 | 44 | ## Installation 45 | ```sh 46 | $ cargo add duplexify 47 | ``` 48 | 49 | ## Safety 50 | This crate uses ``#![forbid(unsafe_code)]`` to ensure everything is implemented in 51 | 100% Safe Rust. 52 | 53 | ## Contributing 54 | Want to join us? Check out our ["Contributing" guide][contributing] and take a 55 | look at some of these issues: 56 | 57 | - [Issues labeled "good first issue"][good-first-issue] 58 | - [Issues labeled "help wanted"][help-wanted] 59 | 60 | [contributing]: https://github.com/async-rs/duplexify/blob/master.github/CONTRIBUTING.md 61 | [good-first-issue]: https://github.com/async-rs/duplexify/labels/good%20first%20issue 62 | [help-wanted]: https://github.com/async-rs/duplexify/labels/help%20wanted 63 | 64 | ## License 65 | 66 | 67 | Licensed under either of Apache License, Version 68 | 2.0 or MIT license at your option. 69 | 70 | 71 |
72 | 73 | 74 | Unless you explicitly state otherwise, any contribution intentionally submitted 75 | for inclusion in this crate by you, as defined in the Apache-2.0 license, shall 76 | be dual licensed as above, without any additional terms or conditions. 77 | 78 | -------------------------------------------------------------------------------- /examples/stdio.rs: -------------------------------------------------------------------------------- 1 | use async_std::io::{self, prelude::*, BufReader}; 2 | use async_std::task; 3 | use duplexify::Duplex; 4 | 5 | fn main() -> std::io::Result<()> { 6 | task::block_on(async { 7 | let stdin = BufReader::new(io::stdin()); 8 | let stdout = io::stdout(); 9 | let mut stdio = Duplex::new(stdin, stdout); 10 | 11 | let mut line = String::new(); 12 | stdio.read_line(&mut line).await?; 13 | stdio.write_all(&line.as_bytes()).await?; 14 | 15 | Ok(()) 16 | }) 17 | } 18 | -------------------------------------------------------------------------------- /src/lib.rs: -------------------------------------------------------------------------------- 1 | //! Combine a reader + writer into a duplex of Read + Write. 2 | //! 3 | //! This is useful when you need a reader + writer, but it doesn't come neatly 4 | //! pre-packaged. This allows wiring it together with minimal effort. 5 | //! See also: [`io::empty`], [`io::sink`]. 6 | //! 7 | //! [`io::empty`]: https://docs.rs/async-std/1.1.0/async_std/io/fn.empty.html 8 | //! [`io::sink`]: https://docs.rs/async-std/1.1.0/async_std/io/fn.sink.html 9 | //! 10 | //! # Examples 11 | //! 12 | //! Read a line from stdin, and write it to stdout. All from the same `stdio` 13 | //! object: 14 | //! 15 | //! ```no_run 16 | //! # fn main() -> std::io::Result<()> { async_std::task::block_on(async { 17 | //! # 18 | //! use async_std::io::{self, BufReader, prelude::*}; 19 | //! use duplexify::Duplex; 20 | //! 21 | //! // Create a reader and writer, and merge them into a single "duplex". 22 | //! let stdin = BufReader::new(io::stdin()); 23 | //! let stdout = io::stdout(); 24 | //! let mut stdio = Duplex::new(stdin, stdout); 25 | //! 26 | //! // We can now read + write from and to the duplex. 27 | //! let mut line = String::new(); 28 | //! stdio.read_line(&mut line).await?; 29 | //! stdio.write_all(&line.as_bytes()).await?; 30 | //! # 31 | //! # Ok(()) }) } 32 | //! ``` 33 | 34 | #![forbid(unsafe_code)] 35 | #![deny(missing_debug_implementations, nonstandard_style)] 36 | #![warn( 37 | missing_docs, 38 | missing_doc_code_examples, 39 | unreachable_pub, 40 | rust_2018_idioms 41 | )] 42 | 43 | use async_std::io::{self, BufRead, Read, Write}; 44 | use async_std::task::{Context, Poll}; 45 | use std::pin::Pin; 46 | 47 | pin_project_lite::pin_project! { 48 | /// Combine a reader + writer into a duplex of `Read` + `Write`. 49 | #[derive(Debug)] 50 | pub struct Duplex { 51 | #[pin] 52 | reader: R, 53 | #[pin] 54 | writer: W, 55 | } 56 | } 57 | 58 | impl Duplex { 59 | /// Create a new instance. 60 | pub fn new(reader: R, writer: W) -> Self { 61 | Self { reader, writer } 62 | } 63 | 64 | /// Decomposes a duplex into its components. 65 | pub fn into_inner(self) -> (R, W) { 66 | (self.reader, self.writer) 67 | } 68 | } 69 | 70 | impl Read for Duplex { 71 | fn poll_read( 72 | self: Pin<&mut Self>, 73 | cx: &mut Context<'_>, 74 | buf: &mut [u8], 75 | ) -> Poll> { 76 | let this = self.project(); 77 | this.reader.poll_read(cx, buf) 78 | } 79 | } 80 | 81 | impl Write for Duplex { 82 | fn poll_write( 83 | self: Pin<&mut Self>, 84 | cx: &mut Context<'_>, 85 | buf: &[u8], 86 | ) -> Poll> { 87 | let this = self.project(); 88 | this.writer.poll_write(cx, buf) 89 | } 90 | 91 | fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { 92 | let this = self.project(); 93 | this.writer.poll_flush(cx) 94 | } 95 | 96 | fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { 97 | let this = self.project(); 98 | this.writer.poll_close(cx) 99 | } 100 | } 101 | 102 | impl BufRead for Duplex { 103 | fn poll_fill_buf(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll> { 104 | let this = self.project(); 105 | this.reader.poll_fill_buf(cx) 106 | } 107 | fn consume(self: Pin<&mut Self>, amt: usize) { 108 | let this = self.project(); 109 | this.reader.consume(amt) 110 | } 111 | } 112 | 113 | impl Clone for Duplex 114 | where 115 | R: Clone, 116 | W: Clone, 117 | { 118 | fn clone(&self) -> Self { 119 | Self { 120 | reader: self.reader.clone(), 121 | writer: self.writer.clone(), 122 | } 123 | } 124 | } 125 | -------------------------------------------------------------------------------- /tests/test.rs: -------------------------------------------------------------------------------- 1 | use std::error::Error; 2 | 3 | #[test] 4 | fn should_work() -> Result<(), Box> { 5 | Ok(()) 6 | } 7 | --------------------------------------------------------------------------------