From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- .../wasi-0.10.2+wasi-snapshot-preview1/README.md | 94 ++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 vendor/wasi-0.10.2+wasi-snapshot-preview1/README.md (limited to 'vendor/wasi-0.10.2+wasi-snapshot-preview1/README.md') diff --git a/vendor/wasi-0.10.2+wasi-snapshot-preview1/README.md b/vendor/wasi-0.10.2+wasi-snapshot-preview1/README.md new file mode 100644 index 000000000..801f56a4e --- /dev/null +++ b/vendor/wasi-0.10.2+wasi-snapshot-preview1/README.md @@ -0,0 +1,94 @@ +
+

wasi

+ +A Bytecode Alliance project + +

+ WASI API Bindings for Rust +

+ +

+ Crates.io version + Download + docs.rs docs +

+
+ +This crate contains API bindings for [WASI](https://github.com/WebAssembly/WASI) +system calls in Rust, and currently reflects the `wasi_snapshot_preview1` +module. This crate is quite low-level and provides conceptually a "system call" +interface. In most settings, it's better to use the Rust standard library, which +has WASI support. + +The `wasi` crate is also entirely procedurally generated from the `*.witx` files +describing the WASI apis. While some conveniences are provided the bindings here +are intentionally low-level! + +# Usage + +First you can depend on this crate via `Cargo.toml`: + +```toml +[dependencies] +wasi = "0.8.0" +``` + +Next you can use the APIs in the root of the module like so: + +```rust +fn main() { + let stdout = 1; + let message = "Hello, World!\n"; + let data = [wasi::Ciovec { + buf: message.as_ptr(), + buf_len: message.len(), + }]; + wasi::fd_write(stdout, &data).unwrap(); +} +``` + +Next you can use a tool like [`cargo +wasi`](https://github.com/bytecodealliance/cargo-wasi) to compile and run your +project: + +To compile Rust projects to wasm using WASI, use the `wasm32-wasi` target, +like this: + +``` +$ cargo wasi run + Compiling wasi v0.8.0+wasi-snapshot-preview1 + Compiling wut v0.1.0 (/code) + Finished dev [unoptimized + debuginfo] target(s) in 0.34s + Running `/.cargo/bin/cargo-wasi target/wasm32-wasi/debug/wut.wasm` + Running `target/wasm32-wasi/debug/wut.wasm` +Hello, World! +``` + +# Development + +The bulk of the `wasi` crate is generated by the `witx-bindgen` tool, which lives at +`crates/witx-bindgen` and is part of the cargo workspace. + +The `src/lib_generated.rs` file can be re-generated with the following +command: + +``` +cargo run -p witx-bindgen -- crates/witx-bindgen/WASI/phases/snapshot/witx/wasi_snapshot_preview1.witx > src/lib_generated.rs +``` + +Note that this uses the WASI standard repository as a submodule. If you do not +have this submodule present in your source tree, run: +``` +git submodule update --init +``` + +# License + +This project is licensed under the Apache 2.0 license with the LLVM exception. +See [LICENSE](LICENSE) for more details. + +### Contribution + +Unless you explicitly state otherwise, any contribution intentionally submitted +for inclusion in this project by you, as defined in the Apache-2.0 license, +shall be licensed as above, without any additional terms or conditions. -- cgit v1.2.3