Reference

Inherits:Object

Inherited By:AESContext,ARVRInterface,ARVRPositionalTracker,AStar,AStar2D,AnimationTrackEditPlugin,AudioEffectInstance,AudioStreamPlayback,CameraFeed,CharFXTransform,ConfigFile,Crypto,DTLSServer,Directory,EditorExportPlugin,EditorFeatureProfile,EditorInspectorPlugin,EditorResourceConversionPlugin,EditorResourcePreviewGenerator,EditorSceneImporter,EditorScenePostImport,EditorScript,EncodedObjectAsID,Expression,File,FuncRef,GDNative,GDScriptFunctionState,HMACContext,HTTPClient,HashingContext,JSONParseResult,JavaClass,JavaScriptObject,KinematicCollision,KinematicCollision2D,MeshDataTool,MultiplayerAPI,Mutex,PCKPacker,PackedDataContainerRef,PacketPeer,Physics2DShapeQueryParameters,Physics2DTestMotionResult,PhysicsShapeQueryParameters,PhysicsTestMotionResult,RandomNumberGenerator,RegEx,RegExMatch,Resource,ResourceFormatLoader,ResourceFormatSaver,ResourceImporter,ResourceInteractiveLoader,SceneState,SceneTreeTimer,Semaphore,SkinReference,SpatialGizmo,SpatialVelocityTracker,StreamPeer,SurfaceTool,TCP_Server,Thread,TriangleMesh,UDPServer,UPNP,UPNPDevice,VisualScriptFunctionState,WeakRef,WebRTCPeerConnection,XMLParser

Base class for reference-counted objects.

Description

Base class for any object that keeps a reference count.Resource and many other helper objects inherit this class.

Unlike otherObject types, References keep an internal reference counter so that they are automatically released when no longer in use, and only then. References therefore do not need to be freed manually withObject.free.

In the vast majority of use cases, instantiating and usingReference-derived types is all you need to do. The methods provided in this class are only for advanced users, and can cause issues if misused.

Note: In C#, references will not be freed instantly after they are no longer in use. Instead, garbage collection will run periodically and will free references that are no longer in use. This means that unused references will linger on for a while before being removed.

Tutorials

Methods

bool

init_ref()

bool

reference()

bool

unreference()

Method Descriptions

Initializes the internal reference counter. Use this only if you really know what you are doing.

Returns whether the initialization was successful.

Increments the internal reference counter. Use this only if you really know what you are doing.

Returnstrue if the increment was successful,false otherwise.

Decrements the internal reference counter. Use this only if you really know what you are doing.

Returnstrue if the decrement was successful,false otherwise.