group_policy_publication_commit.go

/*
  Copyright 2026 The ARCORIS Authors

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/

package bufferpool

// group_policy_publication_commit.go owns mutation after group policy
// publication reaches its runtime snapshot boundary. Helpers here preserve
// RuntimePublished in any later error report instead of rolling back.

func (g *PoolGroup) commitGroupPolicyPublicationLocked(
	normalized PoolGroupPolicy,
	result *PoolGroupPolicyPublicationResult,
	plan *groupPolicyPublicationPlan,
) error {
	g.generation.Store(plan.generation)
	g.publishRuntimeSnapshot(newGroupRuntimeSnapshotWithPressure(plan.generation, normalized, plan.runtime.Pressure))

	result.Generation = plan.generation
	result.RuntimePublished = true
	result.PressurePreserved = g.currentRuntimeSnapshot().Pressure == plan.runtime.Pressure

	if plan.shouldPublishBudget {
		result.BudgetPublication = g.applyPlannedPartitionBudgetBatchLocked(&plan.budgetBatch)
		result.SkippedPartitions = append(result.SkippedPartitions[:0], result.BudgetPublication.SkippedPartitions...)
		if !result.BudgetPublication.Published {
			result.FailureReason = policyUpdateFailureSkippedChild
			return newError(ErrClosed, policyUpdateFailureSkippedChild)
		}
	} else {
		result.BudgetPublication = plan.budgetBatch.report
	}

	result.Published = true
	return nil
}