Module barrier 

Barrier target, marker-fence, and cut-classification decisions.

Structs

BarrierMarkerFenceFacts

Facts that bind a marker append to one installed leadership generation.

Enums

BarrierCutClassification

The status derived from the exact missing-target set.

BarrierMarkerFenceDecision

Whether one marker append is admitted by the leader and epoch fence.

BarrierPlacementDecision

Whether one successful marker response may enter the cut.

BarrierTargetCountDecision

The result of adding one topic’s partitions to a frozen target count.

Functions

barrier_cut_classification

barrier_marker_fence_decision

Require the metadata image and installed partition to name exactly the expected leader generation; see barrier_marker_fence_model for which refusal each mismatch gets.

barrier_placement_decision

barrier_target_count_decision

Add a topic’s exact positive partition count without wrapping.