FA-19960 / Protocols / Member archive

Four-event clock measurement exchange controller: awaiting delay / delay response · case 05

While awaiting_delay, event delay_response produces awaiting_delay/wait instead of complete/compute_exchange.

Member previewVariant 5 · 3 implementations · 14 checks per implementation

Case contract

For the stipulated Four-event clock measurement exchange controller, initialize the explicitly shown resource registers from seed (1..5), then consume classified events sequentially. After each event return a deep snapshot of phase, resource registers, and cumulative emitted control frames. The explicit ten phase/event rules and their resource effects define admission and response semantics. Unlisted events preserve phase and emit rejection. Payload is the consecutive integers seed through 2*seed+1. Empty event input returns no observations.

Why this case matters

Incorrect event admission now changes concrete queued data, resource ownership, or emitted protocol frames and subsequent trace behavior.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
awaiting_delay/delay_response	`[{"frames": [], "phase": "awaiting_delay", "registers": {"clock": 50, "departure": 10, "offset_twice": null, "origin": 5, "owned": true, "receive": 8, "response": 12}}]`	`[{"frames": [], "phase": "complete", "registers": {"clock": 50, "departure": 10, "offset_twice": 1, "origin": 5, "owned": true, "receive": 8, "response": 12}}]`	Failed

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