Fix ReAwaitable to support concurrent await calls (#2108)#2150
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AdrianAcala wants to merge 1 commit intodry-python:masterfrom
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Fix ReAwaitable to support concurrent await calls (#2108)#2150AdrianAcala wants to merge 1 commit intodry-python:masterfrom
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Sorry. Working on some missing tests. |
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This is good to go. |
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I pray this passes. |
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #2150 +/- ##
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Coverage 100.00% 100.00%
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Files 80 81 +1
Lines 2485 2586 +101
Branches 437 45 -392
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…rage This commit resolves the race condition in concurrent await scenarios and adds comprehensive multi-framework async support with enhanced test coverage. ## Key Changes: **ReAwaitable Enhancements:** - Resolve race condition in concurrent await scenarios by properly handling asyncio locks and coroutine state management - Add full support for trio and anyio async frameworks beyond asyncio - Implement intelligent framework detection with graceful fallbacks (asyncio → trio → anyio → threading) - Add comprehensive DEBUG-level logging for lock fallback scenarios to aid troubleshooting - Achieve thread-safe concurrent await support across all major Python async frameworks - Refactor implementation to reduce complexity and improve maintainability **Test Infrastructure:** - Achieve 100% branch coverage with comprehensive test cases - Add extensive tests for all framework scenarios and edge cases - Add comprehensive tests for logging functionality across all framework scenarios - Refactor tests into focused helper functions for better maintainability - Add safe private attribute access helpers to improve test reliability - Enable pytest-asyncio auto mode for better test infrastructure **CI/Build Improvements:** - Update CI workflow to use correct Poetry installation path (.local/bin) - Fix mypy plugin compatibility and test infrastructure for CI - Add pytest-asyncio dependency for async test support **Documentation:** - Update documentation to reflect enhanced framework compatibility - Add detailed docstring documenting framework precedence order - Add changelog entry for the bug fix This addresses issue dry-python#2108 where trio/anyio users experienced "coroutine is being awaited already" errors with concurrent awaits. The implementation now provides thread-safe concurrent await support across all major Python async frameworks.
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I added one more improvement so that it supports multiple async frameworks including asyncio, trio, and anyio, with automatic framework detection and fallback support. |
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Fix ReAwaitable to support concurrent await calls
This PR adds thread-safe caching with asyncio.Lock to prevent race conditions when multiple tasks await the same ReAwaitable instance concurrently. The implementation maintains backward compatibility for non-asyncio environments.
Changes made:
Why this change is needed:
Previously, when multiple async tasks awaited the same ReAwaitable instance simultaneously, race conditions could occur leading to the underlying coroutine being executed multiple times. This fix ensures that only one task executes the coroutine while others wait and receive the cached result.
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