MFC rev. 1.92-1.93 Make session ID generator to use session ID hash. Make session ID generator thread-safe. Use more compact LIST instead of TAILQ for session hash. Add all listening hooks into LIST to simplify searches. Use ng_findhook() instead of own equal implementation.
MFC rev. 1.92-1.93
Make session ID generator to use session ID hash.
Make session ID generator thread-safe.
Use more compact LIST instead of TAILQ for session hash.
Add all listening hooks into LIST to simplify searches.
Use ng_findhook() instead of own equal implementation.

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