| // Copyright 2014 The Bazel Authors. All rights reserved. |
| // |
| // 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 com.google.devtools.build.skyframe; |
| |
| import static com.google.common.base.Preconditions.checkState; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.events.ExtendedEventHandler; |
| import com.google.devtools.build.lib.util.TestType; |
| import java.util.Map; |
| |
| /** |
| * An in-memory {@link MemoizingEvaluator} that uses the eager invalidation strategy. This class is, |
| * by itself, not thread-safe. Neither is it thread-safe to use this class in parallel with any of |
| * the returned graphs. However, it is allowed to access the graph from multiple threads as long as |
| * that does not happen in parallel with an {@link #evaluate} call. |
| * |
| * <p>This memoizing evaluator uses a monotonically increasing {@link IntVersion} for incremental |
| * evaluations and {@link Version#constant} for non-incremental evaluations. |
| */ |
| public final class InMemoryMemoizingEvaluator extends AbstractInMemoryMemoizingEvaluator { |
| // Not final only for testing. |
| private InMemoryGraph graph; |
| |
| public InMemoryMemoizingEvaluator( |
| Map<SkyFunctionName, SkyFunction> skyFunctions, Differencer differencer) { |
| this(skyFunctions, differencer, EvaluationProgressReceiver.NULL); |
| } |
| |
| public InMemoryMemoizingEvaluator( |
| Map<SkyFunctionName, SkyFunction> skyFunctions, |
| Differencer differencer, |
| EvaluationProgressReceiver progressReceiver) { |
| this( |
| skyFunctions, |
| differencer, |
| progressReceiver, |
| GraphInconsistencyReceiver.THROWING, |
| EventFilter.FULL_STORAGE, |
| new EmittedEventState(), |
| /* keepEdges= */ true, |
| /* usePooledInterning= */ true); |
| } |
| |
| public InMemoryMemoizingEvaluator( |
| Map<SkyFunctionName, SkyFunction> skyFunctions, |
| Differencer differencer, |
| EvaluationProgressReceiver progressReceiver, |
| GraphInconsistencyReceiver graphInconsistencyReceiver, |
| EventFilter eventFilter, |
| EmittedEventState emittedEventState, |
| boolean keepEdges, |
| boolean usePooledInterning) { |
| super( |
| ImmutableMap.copyOf(skyFunctions), |
| differencer, |
| new DirtyAndInflightTrackingProgressReceiver(progressReceiver), |
| eventFilter, |
| emittedEventState, |
| graphInconsistencyReceiver, |
| keepEdges, |
| Version.minimal()); |
| this.graph = |
| keepEdges |
| ? InMemoryGraph.create(usePooledInterning) |
| : InMemoryGraph.createEdgeless(usePooledInterning); |
| } |
| |
| @Override |
| public void postLoggingStats(ExtendedEventHandler eventHandler) { |
| eventHandler.post(new SkyframeGraphStatsEvent(graph.valuesSize())); |
| } |
| |
| @Override |
| public void injectGraphTransformerForTesting(GraphTransformerForTesting transformer) { |
| checkState(TestType.isInTest()); |
| this.graph = transformer.transform(this.graph); |
| } |
| |
| @Override |
| public InMemoryGraph getInMemoryGraph() { |
| return graph; |
| } |
| |
| @VisibleForTesting |
| public ImmutableMap<SkyFunctionName, SkyFunction> getSkyFunctionsForTesting() { |
| return skyFunctions; |
| } |
| } |