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Jakub Konka e5b9f1b786 [wasi-common]: winx now returns io::Error directly (#1243) 
* Winx now returns io::Error

This commit is a spiritual follower of #1242 in the sense that it
adjusts `winx` to also return `io::Error` directly rather than
tossing a custom error type here and there.

* Adapt wasi-common to changes in winx

* Run cargo fmt

* Swap overly big map_err with explicit match
2020-03-09 10:32:01 +01:00
..
src
[wasi-common]: winx now returns io::Error directly (#1243)
2020-03-09 10:32:01 +01:00
wig
Update WASI submodule to update transitive wast crate (#1207)
2020-03-02 11:34:04 -06:00
winx
[wasi-common]: winx now returns io::Error directly (#1243)
2020-03-09 10:32:01 +01:00
yanix
[wasi-common]: yanix now returns io::Error directly (#1242)
2020-03-06 14:20:54 -08:00
Cargo.toml
Bump to 0.12.0 (#997)
2020-02-26 16:19:12 -06:00
LICENSE
Initial reorg.
2019-11-08 06:35:40 -08:00
LICENSE.cloudabi-utils
Initial reorg.
2019-11-08 06:35:40 -08:00
README.md
Miscelaneous docs updates and fixes. (#1249)
2020-03-08 16:11:17 +01:00

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.

Crates.io version Download docs.rs docs

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 feature enabled:

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

Third-Party Code

Significant parts of our hostcall implementations are derived from the C implementations in cloudabi-utils. See LICENSE.cloudabi-utils for license information.