rust jit wasm webassembly runtime wasi cranelift sandbox wasmtime

History

Dan Gohman f2bf254a79 Update to cap-std 0.24.1, fixing compilation on Right nightly. (#3786 ) Other than doc updates, this just contains bytecodealliance/cap-std#235, a fix for compilation errors on Rust nightly that look like this: ``` error[E0308]: mismatched types --> cap-primitives/src/fs/via_parent/rename.rs:22:58 \| 22 \| let (old_dir, old_basename) = open_parent(old_start, &old_path)?; \| ^^^^^^^^^ expected struct `Path`, found opaque type \| ::: cap-primitives/src/rustix/fs/dir_utils.rs:67:48 \| 67 \| pub(crate) fn strip_dir_suffix(path: &Path) -> impl Deref<Target = Path> + '_ { \| ------------------------------ the found opaque type \| = note: expected struct `Path` found opaque type `impl Deref<Target = Path>` ```		3 years ago
..
WASI@0ba0c5e2e3	Implement `sock_accept`	3 years ago
cap-std-sync	Update to cap-std 0.24.1, fixing compilation on Right nightly. (#3786)	3 years ago
src	Implement `sock_accept`	3 years ago
tokio	Update to cap-std 0.24.1, fixing compilation on Right nightly. (#3786)	3 years ago
Cargo.toml	Update to cap-std 0.24.1, fixing compilation on Right nightly. (#3786)	3 years ago
LICENSE	Initial reorg.	5 years ago
README.md	wasi-common no longer contains code derived from cloudabi-utils	4 years ago
build.rs	Add "cargo:rerun-if-changed=build.rs" to some build.rs files.	3 years ago

README.md

`wasi-common`

A Bytecode Alliance project

A library providing a common implementation of WASI hostcalls for re-use in any WASI-enabled runtime.

The wasi-common crate will ultimately serve as a library providing a common implementation of WASI hostcalls for re-use in any WASI (and potentially non-WASI) runtimes such as Wasmtime and Lucet.

The library is an adaption of lucet-wasi crate from the Lucet project, and it is currently based on 40ae1df git revision.

Please note that the library requires Rust compiler version at least 1.37.0.

Supported syscalls

*nix

In our *nix implementation, we currently support the entire WASI API with the exception of socket hostcalls:

sock_recv
sock_send
sock_shutdown

We expect these to be implemented when network access is standardised.

We also currently do not support the proc_raise hostcall, as it is expected to be dropped entirely from WASI.

Windows

In our Windows implementation, we currently support the minimal subset of WASI API which allows for running the very basic "Hello world!" style WASM apps. More coming shortly, so stay tuned!

Development hints

When testing the crate, you may want to enable and run full wasm32 integration testsuite. This requires wasm32-wasi target installed which can be done as follows using rustup

rustup target add wasm32-wasi

Now, you should be able to run the integration testsuite by running cargo test on the test-programs package with test-programs/test_programs feature enabled:

cargo test --features test-programs/test_programs --package test-programs