Stream: git-wasmtime

Topic: wasmtime / PR #12735 Enable multiple concurrent sync host...

view this post on Zulip Wasmtime GitHub notifications bot (Mar 05 2026 at 12:47):

TartanLlama opened PR #12735 from TartanLlama:sy/concurrent-host-calls to bytecodealliance:main:

Currently, the waitable set that is used for waiting on sync-lowered, async-implemented host functions is a property of GuestTask. As such, if multiple threads within the same task make concurrent synchronous calls to host functions that block, this state can become corrupted. This PR moves this waitable set into GuestThread to enable this pattern.

view this post on Zulip Wasmtime GitHub notifications bot (Mar 05 2026 at 12:47):

TartanLlama requested fitzgen for a review on PR #12735.

view this post on Zulip Wasmtime GitHub notifications bot (Mar 05 2026 at 12:47):

TartanLlama requested wasmtime-core-reviewers for a review on PR #12735.

view this post on Zulip Wasmtime GitHub notifications bot (Mar 05 2026 at 14:59):

github-actions[bot] added the label wasmtime:api on PR #12735.

view this post on Zulip Wasmtime GitHub notifications bot (Mar 05 2026 at 15:37):

alexcrichton submitted PR review:

Thanks!

view this post on Zulip Wasmtime GitHub notifications bot (Mar 05 2026 at 15:37):

alexcrichton added PR #12735 Enable multiple concurrent sync host calls from different threads in the same task to the merge queue.

view this post on Zulip Wasmtime GitHub notifications bot (Mar 05 2026 at 16:02):

alexcrichton merged PR #12735.

view this post on Zulip Wasmtime GitHub notifications bot (Mar 05 2026 at 16:02):

alexcrichton removed PR #12735 Enable multiple concurrent sync host calls from different threads in the same task from the merge queue.

Last updated: Mar 23 2026 at 16:19 UTC