CSHLD-783: add support for custom checkpoints#337
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The shielded tree's checkpoint retention (reorg-depth tolerance) was hardcoded to 100. indexer-utxo needs per-tree control over this value. Adds an optional max_checkpoints field to the from_frontier request, defaulting to 100 when absent. Since fromState/save use raw persisted bytes with no proto wrapper, capacity is also stored inside the persisted tree state so it survives a save/restore round-trip. Ticket: CSHLD-783
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marked this pull request as ready for review
July 27, 2026 09:22
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Summary
Makes the shielded tree's checkpoint retention capacity (reorg-depth tolerance) configurable per-tree instead of hardcoded to 100, so
indexer-utxocan control it. Default behavior is unchanged when not specified.Ticket: CSHLD-783
Changes
max_checkpointsfield to thefrom_frontierprotobuf request.fromState/saveuse raw persisted bytes (no proto wrapper), capacity is also stored inside the persisted tree state so it survives a save/restore round-trip.fromFrontieraccepting a nullablemaxCheckpoints; existing 2-arg overload unchanged.Test Plan
cargo test— Rust unit tests pass (7/7)make build— compiles Rust → WASM, regenerates proto bindingsmake test-java— all JUnit 5 tests pass (44/44)CLOSES TICKET: CSHLD-783