Memoize buffer state #98
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When the buffer state is reset after dropping messages, the mutexes are also reinitialized with new instances. This causes an issue with `buffer_flush` when it tries to unlock the new mutex that it never locked, raising `Attempt to unlock a mutex which is not locked (ThreadError)`. This fixes the issue by memoizing the buffer mutexes and reusing them even when the buffer state is reset. Fixes #97
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When the buffer state is reset after dropping messages, the mutexes are also reinitialized with new instances. This causes an issue with
buffer_flushwhen it tries to unlock the new mutex that it never locked, raisingAttempt to unlock a mutex which is not locked (ThreadError).This fixes the issue by memoizing the buffer mutexes and reusing them even when the buffer state is reset.
Fixes #97