silk.platform.wasi.start.

Details#

The application can return i32, (), or an Effect with either result. An Effect can require HostInput; the entry supplies an owned argument and environment snapshot. Each error of the Effect must implement Debug. Other services require explicit providers. Success returns the application status, or zero for (). Cleanup completes before the WASI exit call. The application must satisfy Intrinsic.NonParking. A parked execution returns status one.

An unhandled error prints a report to standard error and returns status one. The report has at most 4096 bytes and 32 frames, and ends with an unhandled value: line that holds the error's Debug form, cut to 1024 bytes.

Gotchas#

• A trap prints fatal trap: with its reason and site to standard error, then stops the program without cleanup. A WASI program cannot walk its own stack, so the runtime's own trace, such as Wasmtime's wasm backtrace, lists the calling functions.

Public declarations: 0.

This module declares no public items.

Category: Native platform.

Profiles: aarch64-apple-darwin, aarch64-unknown-linux-gnu, aarch64-unknown-linux-gnu-no-libc, x86_64-unknown-linux-gnu, x86_64-unknown-linux-gnu-no-libc, wasm32-unknown-unknown, wasm32-wasip1, wasm32-wasip2.