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Updated but RCSM still not referenced properly.
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90 changes: 90 additions & 0 deletions
90
engine/updategraph/src/main/java/io/deephaven/engine/liveness/StandaloneLivenessManager.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| // | ||
| // Copyright (c) 2016-2024 Deephaven Data Labs and Patent Pending | ||
| // | ||
| package io.deephaven.engine.liveness; | ||
|
|
||
| import io.deephaven.base.log.LogOutput; | ||
| import io.deephaven.base.log.LogOutputAppendable; | ||
| import io.deephaven.util.Utils; | ||
| import io.deephaven.util.annotations.VisibleForTesting; | ||
| import org.jetbrains.annotations.NotNull; | ||
|
|
||
| import java.util.stream.Stream; | ||
|
|
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| /** | ||
| * {@link LivenessNode} implementation that relies on reference counting to determine its liveness. | ||
| */ | ||
| public class StandaloneLivenessManager implements LivenessManager, LogOutputAppendable { | ||
|
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| final boolean enforceStrongReachability; | ||
|
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| transient RetainedReferenceTracker<StandaloneLivenessManager> tracker; | ||
|
|
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| /** | ||
| * @param enforceStrongReachability Whether this {@link LivenessManager} should maintain strong references to its | ||
| * referents | ||
| */ | ||
| @SuppressWarnings("WeakerAccess") // Needed in order to deserialize Serializable subclass instances | ||
| public StandaloneLivenessManager(final boolean enforceStrongReachability) { | ||
| this.enforceStrongReachability = enforceStrongReachability; | ||
| initializeTransientFieldsForLiveness(); | ||
| } | ||
|
|
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| /** | ||
| * Package-private for {@link java.io.Serializable} sub-classes to use in <code>readObject</code> <em>only</em>. | ||
| * Public to allow unit tests in another package to work around mock issues where the constructor is never invoked. | ||
| */ | ||
| @VisibleForTesting | ||
| public final void initializeTransientFieldsForLiveness() { | ||
| if (Liveness.REFERENCE_TRACKING_DISABLED) { | ||
| return; | ||
| } | ||
| tracker = new RetainedReferenceTracker<>(this, enforceStrongReachability); | ||
| if (Liveness.DEBUG_MODE_ENABLED) { | ||
| Liveness.log.info().append("LivenessDebug: Created tracker ").append(Utils.REFERENT_FORMATTER, tracker) | ||
| .append(" for ").append(Utils.REFERENT_FORMATTER, this).endl(); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public final boolean tryManage(@NotNull final LivenessReferent referent) { | ||
| if (Liveness.REFERENCE_TRACKING_DISABLED) { | ||
| return true; | ||
| } | ||
| if (Liveness.DEBUG_MODE_ENABLED) { | ||
| Liveness.log.info().append("LivenessDebug: ").append(this).append(" managing ") | ||
| .append(referent.getReferentDescription()).endl(); | ||
| } | ||
| if (!referent.tryRetainReference()) { | ||
| return false; | ||
| } | ||
| tracker.addReference(referent); | ||
| return true; | ||
| } | ||
|
|
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| @Override | ||
| public final boolean tryUnmanage(@NotNull final LivenessReferent referent) { | ||
| if (Liveness.REFERENCE_TRACKING_DISABLED) { | ||
| return true; | ||
| } | ||
| tracker.dropReference(referent); | ||
| return true; | ||
| } | ||
|
|
||
| @Override | ||
| public final boolean tryUnmanage(@NotNull final Stream<? extends LivenessReferent> referents) { | ||
| if (Liveness.REFERENCE_TRACKING_DISABLED) { | ||
| return true; | ||
| } | ||
| tracker.dropReferences(referents); | ||
| return true; | ||
| } | ||
|
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| @Override | ||
| public LogOutput append(LogOutput logOutput) { | ||
| return logOutput | ||
| .append("StandaloneLivenessManager{enforceStrongReachability=") | ||
| .append(enforceStrongReachability) | ||
| .append("}"); | ||
| } | ||
| } |
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