Add Linux support using Synchronization.Mutex - #74
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Preserve shared critical-state ownership with a reference-backed Mutex wrapper and compiler-checked Sendable conformance. Remove the unused Combine test import and make Dispatch explicit. Require Swift 6.1 and iOS/tvOS 18, macOS 15, and watchOS 11 while retaining Swift 5 language mode. Swift 6.0.3 crashes when compiling generic Mutex storage in Linux debug builds. Add Ubuntu CI for Swift 6.1.3 and 6.4.0 and verify throwing critical regions release the lock. All 200 tests and release builds passed on macOS and Linux arm64.
This was referenced Oct 4, 2026
Contributor
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Great. Can you tag a release? Thank you, I'm very happy not to have to maintain a fork anymore. |
Contributor
Author
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Done -> 0.7 |
Contributor
Legend. Thank you! |
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Description
Enable AsyncExtensions builds and tests on Linux by replacing Darwin-only locking with
Synchronization.Mutex. A reference-backedManagedCriticalStatepreserves shared state between iterator copies and callbacks, with compiler-checked conditionalSendableconformance. Remove the unused Combine test import and import Dispatch explicitly for the buffered timer.Breaking requirements: Swift 6.1+, iOS/tvOS 18+, macOS 15+, and watchOS 11+. Swift 5 language mode is retained. Swift 6.0.3 was excluded after reproducing a compiler crash in generic Mutex initialization during Linux debug builds.
Add Ubuntu 22.04 CI with Swift 6.1.3 and 6.4.0, document Linux usage, and test that throwing critical regions preserve mutations and release the lock. Make the lazy-sequence cancellation test await its child task so XCTest finishes after all expectations and assertions complete. Related: #38.
Validation
3b41b88: Ubuntu 22.04 x86_64 release builds and all 200 tests passed on Swift 6.1.3 and 6.4.0; macOS build and test jobs also passed, in both push and pull-request workflows. PR workflow results.git diff --checkpassed.Checklist