Files
glm-5.3-flash
9301bb926b
core: verify and pin the receiver's pre-yield offset() value (review 004 item 12, core-pin-offset-initial-value) — the three engines verified equal live, so the doc-pin branch applies: offset() reads 0 before any yield on every receiver — fresh consumer, stored positive checkpoint, stored negative seed (ADR-023 §2's totality arm, the one a checkpoint-seeded realization would surface on) — the no-yield sentinel, never the stored checkpoint: the checkpoint gates the feed's attach-read start while the receiver's offset tracks the last-yielded event only, composing with the pinned pre-yield save_offset() no-op; the attach read's prefetches sit unobserved and the first recv/try_recv observation is the first move (then the post-yield value, receiver_close_and_save_arms' pin). Verified by code read first (all three offset() bodies are self.position, all three constructors seed position: 0 unconditionally — mem stream.rs:353, sqlite :399, pg :620) then live: new suite row receiver_offset_pre_yield_is_zero (alkstore-contract-suite, stamped ADR-008 §8 + the core-contract.md pin, four arms incl. the first-observation composition leg) green on all three columns, pg against the harness server (parked pglo-poc :15432); pinned in three places: core-contract.md streams/subscribe row (dated 2026-10-11 annotation) + a verification-backlog bullet recording the verified pin, the core trait doc on offset() (core's doc comments are contract text), and the suite row itself — ADR-008 §8's shape comment deliberately left untouched (doc-only verification takes no ADR amendment, noted in the task); no engine code changed, no divergence to raise; gates green: workspace build/tests server-less, full pg column vs harness (135+26+9), clippy -D warnings, fmt --check, doc gate zero warnings, fuzz corpus replay 6/6, wasm32 mem check, taskgraph validate (96); task -> completed
Contract-suite lock rows (task suite-lock-rows): two version-stamped rows discharging the lock backlog rows — lock_ttl_expiry_and_reacquisition (the ADR-008 §7 guarantee row: a held lock excludes a second acquirer (contender None); after a 1 s TTL the exclusion lapses silently — no revocation event, no error — and a second owner acquires; the original holder's post-expiry renew is refused (false, the lost-it arm); the second owner's release frees the name for a third acquirer, which consumes cleanly; tolerance-sleep posture, state outcomes only; ADR-008 §7 + ADR-019 §1, duration-guard legs cross-referenced to duration_refusal_on_non_positive_ttl) and concurrent_try_lock_loser_is_a_value (the contention posture: four sequential contenders — two owners, repeated — against a held lock all land the clean None value, never Database, never a busy-throw; the backlog row's SQLite busy-path open question answered: no divergence from the pg reference; release-then-contend cycle proves the loser path leaves no state blocking a later acquire, granted to a former loser and consumed cleanly; ADR-008 §5 + §7 + ADR-019 §1) — wired into both engines' suite targets (SQLite tokio tests, pg harness_row!s), 23 rows per column up from 21. Dispositions in Notes: no divergence found (no fix/ADR call needed), ADR-023 §2 excluded from stamps (its guard property is the duration-refusal row's, cross-referenced), the backlog parenthetical re-acquire-does-not-refresh-TTL stays engine-pinned, renew-refusal asserted after the second owner's re-acquisition (strongest form), contenders distinct-owner only (same-owner re-acquire grants per the inherited substrate shape), and one unreproducible first-cold-run pg failure recorded (message lost to truncation; 13 subsequent clean runs incl. concurrent SQLite+pg — no timing hazard identified, the lapse assertions are post-sleep state outcomes). Drive-by: alkstore-contract-suite's tokio dep gained the macros feature — a pre-existing compile break in the crate's own tests/suite_harness.rs (since
7f749ac) failed the harness target and the workspace test gate on HEAD; test-side non-event (ADR-017 §2 class 4). Verified: cargo test -p alkstore-sqlite -p alkstore-postgres green (SQLite 121+23+9, pg 189+23 vs harness server on :15432, server-less pg skips clean), workspace cargo test green (12 binaries), clippy -D warnings, fmt clean