45 lines
1.9 KiB
Markdown
45 lines
1.9 KiB
Markdown
# wasi-common
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[![build-status]][azure] [![rustc-1.36]][rustc]
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[build-status]: https://dev.azure.com/CraneStation/wasi-common/_apis/build/status/CraneStation.wasi-common?branchName=master
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[azure]: https://dev.azure.com/CraneStation/wasi-common/_build/latest?definitionId=3&branchName=master
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[rustc-1.36]: https://img.shields.io/badge/rustc-1.36+-lightgray.svg
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[rustc]: https://blog.rust-lang.org/2019/07/04/Rust-1.36.0.html
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[Wasmtime]: https://github.com/CraneStation/wasmtime
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[Lucet]: https://github.com/fastly/lucet
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[lucet-wasi]: https://github.com/fastly/lucet/tree/master/lucet-wasi
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[lucet-wasi-tracker]: https://github.com/fastly/lucet/commit/40ae1df64536250a2b6ab67e7f167d22f4aa7f94
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[WASI API]: https://github.com/CraneStation/wasmtime/blob/master/docs/WASI-api.md
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This repo will ultimately serve as a library providing a common implementation of
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WASI hostcalls for re-use in any WASI (and potentially non-WASI) runtimes
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such as [Wasmtime] and [Lucet].
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The library is an adaption of [lucet-wasi] crate from the [Lucet] project, and it is
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currently based on [40ae1df][lucet-wasi-tracker] git revision.
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Please note that the library requires Rust compiler version at least 1.36.0.
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## Supported syscalls
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### *nix
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In our *nix implementation, we currently support the entire [WASI API]
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with the exception of socket hostcalls:
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- `sock_recv`
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- `sock_send`
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- `sock_shutdown`
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We expect these to be implemented when network access is standardised.
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We also currently do not support the `proc_raise` hostcall, as it is expected to
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be dropped entirely from WASI.
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### Windows
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In our Windows implementation, we currently support the minimal subset of [WASI API]
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which allows for running the very basic "Hello world!" style WASM apps. More coming shortly,
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so stay tuned!
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## Third-Party Code
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Significant parts of our hostcall implementations are derived from the C implementations in
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`cloudabi-utils`. See [LICENSE.cloudabi-utils](LICENSE.cloudabi-utils) for license information.
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