Joseph Doherty
f61c816acf
WRK-06: MxStatusProxyConverter caches the four resolved FieldInfo per status type in a static ConcurrentDictionary (the GetField metadata scan ran 4x per status per event on the STA path). GetValue+Convert.ToInt32 still run per event (late-bound RCW). Exceptions byte-identical: missing-field message unchanged (ResolveField, not cached on throw via GetOrAdd); null-value message unchanged. WRK-11: MxAccessEventQueue.Enqueue takes ownership of the passed MxEvent - stamps WorkerSequence/WorkerTimestamp on it in place and enqueues it, no Clone(). Audited all 3 callers (base/alarm event sinks, provider-mode handler): each builds a fresh event per Enqueue, none reuse it. MxAccessValueCache.Set now deep-copies its retained Value/SourceTimestamp/Statuses so the cache snapshot never aliases the queue-owned (later serialized) event. Net: alarm/other events clone nothing (was full clone); data-change clones payload-only. WRK-12: WorkerFrameWriter coalesces the flush across a drained batch - each frame is written but not flushed individually; one FlushAsync after the batch, then all written frames complete. Preserves the written+flushed completion contract; a burst of N events costs 1 flush, not N. On write failure the whole in-flight batch + queue fail so no caller hangs. IPC-15 (doc): the multi-event WorkerEnvelope body remains unimplemented (wire still carries one event per worker_event frame); gateway.md Performance section now distinguishes the shipped flush-coalescing from that deferred proto change. net48-safe (no init/records; readonly struct cache entry). Worker builds x86 only - verification on windev. Tests added: converter cache-reuse, queue ownership-transfer, value-cache snapshot independence, writer batch-flush-once. Claude-Session: https://claude.ai/code/session_01DMXXvNuPekkkrTEyPNxEkW