7287767a3f
* Add partial impl of determine_type_rights fn * Add draft of fd_fdstat_get hostcall * Add writev wrapper for writing IoVec in RawHandle * Move IoVec and writev to separate helper crate * Add Win error handling Clean up closing and duplicating RawHandle * Wrap Win file type result * Add draft impl of fd_close and fd_read * Refactor getting file access rights * Remove winapi from the main Cargo.toml * Add very rough draft of open_path (very incomplete) * Clean up WinError with macro * Ignore dir handle in openat if path absolute * Decode oflags and advance open_path hostcall * Clean up AccessRight and FlagsAndAttributes flags * Implement path_get (without symlink expansion yet!) * Add ShareMode and fix path_get for nested paths * Add some error mappings between Win and WASI * Clean up fdflags conversions * Fix sharing violation when calling openat at '.' * Apply Alex's fix of using ManuallyDrop instead forget * Clean up * Explicitly specify workspace to avoid comp errors at tests
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 1.34.0.
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.