fix(WRK-22,WRK-24,WRK-25,WRK-27,IPC-26): worker write-seam hardening

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WRK-22/IPC-26: tombstone a WriteAsync/WriteBatchAsync cancelled while
waiting for the write lock (PendingFrame.Claimed under _gate; DequeueNext
skips cancelled, claims the frame it returns) so a cancelled write never
reaches the wire unless already claimed mid-write (documented residual).

WRK-25: add WriteBatchAsync; RunEventDrainLoopAsync submits the drained
event batch through it, so a burst of N events costs one flush not N.
IPC-30 oversized-event structured fault preserved via FindOversizedEvent.

WRK-24: reject a below-1024 negotiated frame maximum at the handshake
(MinNegotiableFrameBytes, matching GatewayOptionsValidator floor).

WRK-27: alarm poll advertises StaCallInProgress on the heartbeat snapshot
so the watchdog suppresses to the ceiling, not the grace.

Docs (WorkerFrameProtocol.md, MxAccessWorkerInstanceDesign.md) and the
2026-07-12 remediation registers/change-log updated in the same commit.

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This commit is contained in:

Joseph Doherty

2026-08-07 07:50:38 -04:00

parent 10534ec906

commit 8df35cd63a

14 changed files with 912 additions and 58 deletions

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archreview/2026-07-12/remediation/00-tracking.md

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