Stream: git-wasmtime

Topic: wasmtime / PR #5055 component model: async host function ...

Wasmtime GitHub notifications bot (Oct 14 2022 at 00:41):

pchickey opened PR #5055 from pch/component_model_async to main:

<!--

Please ensure that the following steps are all taken care of before submitting
the PR.

• [ ] This has been discussed in issue #..., or if not, please tell us why
  here.

• [ ] A short description of what this does, why it is needed; if the
  description becomes long, the matter should probably be discussed in an issue
  first.

• [ ] This PR contains test cases, if meaningful.

• [ ] A reviewer from the core maintainer team has been assigned for this PR.
  If you don't know who could review this, please indicate so. The list of
  suggested reviewers on the right can help you.

Please ensure all communication adheres to the code of conduct.
-->

Wasmtime GitHub notifications bot (Oct 17 2022 at 21:45):

pchickey updated PR #5055 from pch/component_model_async to main.

Wasmtime GitHub notifications bot (Oct 17 2022 at 23:45):

pchickey updated PR #5055 from pch/component_model_async to main.

Wasmtime GitHub notifications bot (Oct 17 2022 at 23:51):

pchickey edited PR #5055 from pch/component_model_async to main:

Based on #5065.

This PR adds the async suite of variations on Linker::wrap_func, Func::call, TypedFunc::call, and the various instantiate functions, for use in async Rust contexts.

This ends up being pretty simple: all of the async store machinery from core wasmtime is straightforward to reuse here.

I created a new test suite at tests/all/component_model/async.rs to smoke test the new functionality.

Wasmtime GitHub notifications bot (Oct 17 2022 at 23:52):

pchickey updated PR #5055 from pch/component_model_async to main.

Wasmtime GitHub notifications bot (Oct 18 2022 at 14:53):

alexcrichton submitted PR review.

Wasmtime GitHub notifications bot (Oct 18 2022 at 14:53):

alexcrichton submitted PR review.

Wasmtime GitHub notifications bot (Oct 18 2022 at 14:53):

alexcrichton created PR review comment:

One day in the future it might be best to conditionally do the fiber business here since many functions might not have a post_return in which case going through all this for a stack is largely overkill. Put another way the stack is only needed here for the crate::Func::call_unchecked_raw call, but this is an optimization we can deal with later.

Wasmtime GitHub notifications bot (Oct 18 2022 at 14:53):

alexcrichton created PR review comment:

You can simplify this a bit with:

(component
  (import "i" (func $f))

  (core module $m
    (import "" "" (func $i))
    (func (export "thunk") call $i)
  )

  (core func $f (canon lower (func $f)))
  (core instance $i (instantiate $m
    (with "" (instance
      (export "" (func $f))
    ))
  ))
  (func (export "thunk")
    (canon lift (core func $i "thunk"))
  )
)

Wasmtime GitHub notifications bot (Oct 18 2022 at 16:31):

pchickey updated PR #5055 from pch/component_model_async to main.

Wasmtime GitHub notifications bot (Oct 18 2022 at 16:31):

pchickey submitted PR review.

Wasmtime GitHub notifications bot (Oct 18 2022 at 16:31):

pchickey created PR review comment:

Noted!

Wasmtime GitHub notifications bot (Oct 18 2022 at 16:31):

pchickey submitted PR review.

Wasmtime GitHub notifications bot (Oct 18 2022 at 16:31):

pchickey created PR review comment:

Thanks, done!

Wasmtime GitHub notifications bot (Oct 18 2022 at 16:32):

pchickey updated PR #5055 from pch/component_model_async to main.

Wasmtime GitHub notifications bot (Oct 18 2022 at 16:32):

pchickey has marked PR #5055 as ready for review.

Wasmtime GitHub notifications bot (Oct 18 2022 at 17:03):

pchickey updated PR #5055 from pch/component_model_async to main.

Wasmtime GitHub notifications bot (Oct 18 2022 at 20:40):

alexcrichton submitted PR review.

Wasmtime GitHub notifications bot (Oct 18 2022 at 20:40):

alexcrichton merged PR #5055.

Last updated: Dec 23 2024 at 13:07 UTC