David Snelling
131daa08cd
MEASURED on a production store: a metadata provider that had to rebuild made init() pay the ENTIRE rebuild on the foreground — 641 seconds — with every other family idle behind it. The cause is a missing distinction: a provider reporting serving:false because it is BUSY BUILDING ITSELF and one reporting serving:false because it is BROKEN looked identical through healthReport(), and both were answered the same way — call rebuild(), and wait for it. The contract that tells them apart is one optional, synchronous, O(1) hook: `rebuildInProgress(): ProviderRebuildProgress | null`, reporting a phase name and whatever the provider actually measures (done/total/startedAt) — never an estimate dressed as a fact. A provider without the hook behaves exactly as before. With it, a provider owns its own rebuild: - the open gate neither starts a second rebuild nor waits for the provider's, and narrates that it is not waiting and what will refuse meanwhile; - init() returns and every other family serves; - that family's doors refuse BY NAME, carrying the provider's own progress, and say plainly that the door opens by itself and no action is needed — distinct from a broken index, which names repairIndex(); - the epoch stamp does not advance while any family is still being built. Nothing is ever served empty: a not-serving family refuses, as it already did. Pins: tests/integration/open-does-not-wait-for-a-rebuilding-provider.test.ts — init() returns in milliseconds against a provider claiming a 6s rebuild, brainy starts no rebuild of its own, a filtered read refuses naming the phase and the 4,096/14,056 progress, and the door answers once the provider reports serving. The pin fails loudly rather than vacuously if its stub never installs. |
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| api | ||
| benchmarks | ||
| comprehensive | ||
| configs | ||
| conformance | ||
| fixtures | ||
| helpers | ||
| integration | ||
| integrations | ||
| lifecycle | ||
| performance | ||
| regression | ||
| scripts | ||
| transaction | ||
| unit | ||
| vfs | ||
| critical-neural-validation.test.ts | ||
| critical-performance-benchmark.test.ts | ||
| model-loading.test.ts | ||
| package-size-breakdown.test.ts | ||
| package-size-limit.test.ts | ||
| setup-integration.ts | ||
| setup-semantic.ts | ||
| setup-unit.ts | ||
| setup.ts | ||
| type-utils.unit.test.ts | ||