Fix thread-safety issue in SingletonBase metaclass #85
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- Added threading.Lock to prevent race conditions during instance creation - Implemented double-checked locking pattern for optimal performance - Updated docstring to reflect thread-safety guarantee - Removed TODO comment as the issue is now resolved This fix ensures that the singleton pattern works correctly in parallel execution contexts, preventing potential issues where multiple threads could create multiple instances simultaneously.
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This fix ensures that the singleton pattern works correctly in parallel execution contexts, preventing potential issues where multiple threads could create multiple instances simultaneously.