DisposeSentinel

class in Unity.Collections.LowLevel.Unsafe

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Implemented in:UnityEngine.CoreModule

Description

Contains methods that automatically detect memory leaks.

The methods in DisposeSentinel are used by NativeContainer instances to automatically track memory leaks, and report them to you. However, you should use the UnsafeUtililty.MallocTracked method over DisposeSentinel where possible.

DisposeSentinel is a managed object that's only referenced by the NativeContainer that holds the native data that you don't want to leak. The DisposeSentinel finalizer is invoked when there aren't any references to the NativeContainer that owns it, and checks if the referenced data has been disposed correctly. If the data hasn't been disposed of correctly, DisposeSentinel logs an error containing the information about when the initial allocation happened.

DisposeSentinel creates garbage for the garbage collector to pick up, and any memory leaks are reported upon domain shutdown or reload.

You can only use the DisposeSentinel class when ENABLE_UNITY_COLLECTIONS_CHECKS is defined.

Additional resources: the example in NativeContainerAttribute.

Static Methods

ClearClears the DisposeSentinel.
CreateCreates a new AtomicSafetyHandle and a new DisposeSentinel, to be used to track safety and leaks on native data.
DisposeReleases the AtomicSafetyHandle and clears the DisposeSentinel.

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