061390ee1b
* Move filetime module to yanix I've noticed that we could replace every occurrence of `crate::Result` in `filetime` mods with `io::Result`, so I thought why not move it to `yanix` and get rid off a lot of unnecessary code duplication within `wasi-common`. Now, ideally I'd have our `filetime` modifications backported to Alex's [`filetime`] crate, but one step at a time (apologies Alex, I was meant to backport this ages ago, just didn't find the time yet... :-(). Anyway, this commit does just that; i.e., moves the `filetime` modules into `yanix` which seems a better fit for this type of code. [`filetime`]: https://github.com/alexcrichton/filetime There is one caveat here. On Emscripten, converting between `filetime::Filetime` and `libc::timespec` appears to be lossy, at least as far as the types are concerned. Now, `filetime::Filetime`'s seconds field is `i64` while nanoseconds field is `u32`, while Emscripten's `libc::timespec` requires both to be `i32` width. This might actually not be a problem since I don't think it's possible to fill `filetime::Filetime` struct with values of width wider than `i32` since Emscripten is 32bit but just to be on the safe side, we do a `TryInto` conversion, log the error (if any), and return `libc::EOVERFLOW`. * Run cargo fmt * Use i64::from instead of as cast
wasmtime
A standalone runtime for WebAssembly
A Bytecode Alliance project
Guide | Contributing | Website | Chat
Installation
The Wasmtime CLI can be installed on Linux and macOS with a small install script:
$ curl https://wasmtime.dev/install.sh -sSf | bash
Windows or otherwise interested users can download installers and binaries directly from the GitHub Releases page.
Example
If you've got the Rust compiler installed then you can take some Rust source code:
fn main() {
println!("Hello, world!");
}
and compile/run it with:
$ rustup target add wasm32-wasi
$ rustc hello.rs --target wasm32-wasi
$ wasmtime hello.wasm
Hello, world!
Features
-
Lightweight. Wasmtime is a standalone runtime for WebAssembly that scales with your needs. It fits on tiny chips as well as makes use of huge servers. Wasmtime can be embedded into almost any application too.
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Fast. Wasmtime is built on the optimizing Cranelift code generator to quickly generate high-quality machine code at runtime.
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Configurable. Whether you need to precompile your wasm ahead of time, generate code blazingly fast with Lightbeam, or interpret it at runtime, Wasmtime has you covered for all your wasm-executing needs.
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WASI. Wasmtime supports a rich set of APIs for interacting with the host environment through the WASI standard.
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Standards Compliant. Wasmtime passes the official WebAssembly test suite, implements the official C API of wasm, and implements future proposals to WebAssembly as well. Wasmtime developers are intimately engaged with the WebAssembly standards process all along the way too.
Documentation
📚 Read the Wasmtime guide here! 📚
The wasmtime guide is the best starting point to learn about what Wasmtime can do for you or help answer your questions about Wasmtime. If you're curious in contributing to Wasmtime, it can also help you do that!.
It's Wasmtime.