Crate wasix

Raw API bindings to the WebAssembly System Interface (WASI)

This crate provides Rust API bindings to WASI APIs. All WASI APIs are exported from this crate and provided with the appropriate type signatures. This crate is entirely procedurally generated from the *.witx files that describe the WASI API.

WASI API Version

The WASI API is evolving over time. It is both gaining new features as well as tweaking the ABI of existing features. As a result it’s important to understand what version of this crate you’re using and how it relates to the WASI version of the spec.

The WASI specification is organized into phases where there is a snapshot at any one point in time describing the current state of the specification. This crate implements a particular snapshot. You can find the snapshot version implemented in this crate in the build metadata of the crate version number. For example something like 0.9.0+wasi-snapshot-preview1 means that this crate’s own personal version is 0.9.0 and it implements the wasi-snapshot-preview1 snapshot. A major release of this crate (i.e. bumping the “0.9.0”) is expected whenever the generated code changes or a new WASI snapshot is used.

Crate Features

This crate supports one feature, std, which implements the standard Error trait for the exported [Error] type in this crate. This is enabled by default but can be disabled to make the library no_std compatible.

Re-exports

• pub use lib_generated64 as lib_generated;
• pub use lib_generated as x;
• pub use wasi;
• pub use x::*;

Modules

• lib_generated64

Constants

• DIRCOOKIE_START
  Special Dircookie value indicating the start of a directory.
• FD_STDERR
  The “standard error” descriptor number.
• FD_STDIN
  The “standard input” descriptor number.
• FD_STDOUT
  The “standard output” descriptor number.