[CL-129] partial payloads: tcache range acquire and sub-reservations - #244
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vladimir-ea
added this pull request to stack #246
September 11, 2026 14:59
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Producer tracks min_allocation so uncommitted reservations block ring reuse. MultiProducer serialises allocation behind a claim, initialising slot headers before the head advances. Consumers gain pinned sub-slot ranges, fixed retention boundaries, per-part sub-reservations with claim/validate/accept states, and gossip frame descriptors over pinned segments. Gossip decompression computes the message id before the offset commits the reservation. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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ninaiiad
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| #[derive(Clone, Copy, Debug)] | ||
| pub enum GossipSegment { |
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this doesn't have to be Gossip* specific, does it?
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tcache changes for partial payloads
correctness changes:
producer.rsto sub-mdule)new features:
sub-ranges will be used to serve individual cell data from a sidecar buffer
sub-reservations will be used to write individual cells into a whole sidecar buffer reservation
fixed retention boundary means the producer fixes the consumer's 'tail guard' by emitting retention events - the consumer doesn't rollup their tail past this guard until the producer releases it, then the tail can roll normally upto the new guard. this will be used with a new data columns tcache which will have per-slot retention.