6b2f3ebf7c
* Begin sketching out a new high-level `fs` API. This is a very preliminary sketch of #83. It doesn't even compile yet, but it shows a possible high-level structure of such an API. * Stub out more functionality. * Switch from a lazy_static WasiCtx to a borrowed one. * Reformat some comments. * Code-quote `Self`. * Implement error translation for Windows. * Calls to `fd_close` are now unsafe. * Implement a few more functions.
wasi-common
This repo 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 1.36.0.
Supported syscalls
*nix
In our *nix implementation, we currently support the entire WASI API with the exception of socket hostcalls:
sock_recvsock_sendsock_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!
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.