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updated doc-string and reverted mplex-changes

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kaneki003
2025-06-24 18:05:15 +05:30
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newsfragments/639.feature.rst
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Added separate read and write locks to the `MplexStream` & `YamuxStream` class.This ensures thread-safe access and data integrity when multiple coroutines interact with the same MplexStream instance.
Fixed several flow-control and concurrency issues in the `YamuxStream` class. Previously, stress-testing revealed that transferring data over `DEFAULT_WINDOW_SIZE` would break the stream due to inconsistent window update handling and lock management. The fixes include:
- Removed sending of window updates during writes to maintain correct flow-control.
- Added proper timeout handling when releasing and acquiring locks to prevent concurrency errors.
- Corrected the `read` function to properly handle window updates for both `read_until_EOF` and `read_n_bytes`.
- Added event logging at `send_window_updates` and `waiting_for_window_updates` for better observability.