Module prune 

Selects a bounded set of useful room forward extremities.

Leaves are classified by reachability, reference status, origin, event kind, and stream position. Receive and administrative callers share the scoring logic but differ in whether referenced leaves need another sweep.

Structs

Candidate 🔒

Live 🔒

PruneSummary

Counts the outcome of one forward-extremity pruning pass.

Enums

Class 🔒

Partial 🔒

A leaf’s classification before per-server reachability is resolved into Live::owner_online, kept apart so the reachability query runs once per unique server rather than once per leaf.

Trigger

Selects the call path that initiated an extremity pruning pass.

Functions

drop_order 🔒

Orders live leaves most-droppable first: message before state, redacted before intact, reachable-owner before unreachable, oldest before newest.

prune_goal 🔒

Calculates the drop goal for one paced receive-path pruning round.

select 🔒

Chooses survivors from the classified leaves. Dangling and referenced leaves are dropped for free (not counted toward goal), own leaves are always kept, and the most-droppable live leaves are dropped up to goal, subject to the one-survivor floor.

Type Aliases

Servers 🔒