Module retention_engine 

Retention Policy Engine for IPFRS block storage.

Evaluates which blocks to retain or expire based on configurable retention policies, supporting pinning, TTLs, access-frequency thresholds, and size limits.

Structs

BlockRecord

Record describing a stored block and its metadata.

PolicyConfig

Configuration for the RetentionPolicyEngine.

RetentionEngineStats

Aggregate statistics for the retention engine since last reset.

RetentionPolicyEngine

Engine that evaluates block retention decisions against a PolicyConfig.

Enums

RetentionDecision

Decision made by the retention policy engine for a block.

RetentionRule

A single retention rule that can match a block and produce a decision.