Files

Jakub Konka 348be6f3ed Revert fstatat on *nix and test symlinks in path_filestat calls (#1725 )

* Revert fstatat on *nix and test symlinks in path_filestat calls

This commit effectively reverts too eager refactoring on my part which
resulted in incorrect `path_filestat_{get, set_times}` behaviour on
*nix hosts. In the presence of symlinks, neither of the calls would
work properly.

In order to shield ourselves from similar errors in the future, I've
augmented the `path_filestat` test cases with symlink checks as well.

* Pass appropriate flags to fstatat and utimensat

* Fix formatting

* Fix Windows build

* Expand final symlinks if follow is set on Windows

* Fix formatting

* Do not follow symlinks unless specified on Windows

* Update comments and restart CI

* Skip testing volatile atim field

2020-05-20 12:02:24 -07:00

src

Revert fstatat on *nix and test symlinks in path_filestat calls (#1725 )

2020-05-20 12:02:24 -07:00

WASI @ 2b027d91c2

latest wasi submodule has witx 0.8.5, required for the error_types iter

2020-04-06 13:39:29 -07:00

wig

Change proc_exit to unwind the stack rather than exiting the host process. (#1646 )

2020-05-13 15:59:43 -07:00

winx

Update release notes, wasmtime 0.16, cranelift 0.63.

2020-04-29 17:30:25 -07:00

yanix

Update release notes, wasmtime 0.16, cranelift 0.63.

2020-04-29 17:30:25 -07:00

build.rs

Move back to only one WASI submodule (#1434 )

2020-03-30 14:45:23 -05:00

Cargo.toml

Update release notes, wasmtime 0.16, cranelift 0.63.

2020-04-29 17:30:25 -07:00

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

Fixes for cargo publish (#1416 )

2020-03-26 20:31:12 -07:00

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.

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

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.