Interface nsIFinalizationWitnessServiceType

Hierarchy

Methods

AddRef QueryInterface Release make

Methods

AddRef

  • Increases the reference count for this interface. The associated instance will not be deleted unless the reference count is returned to zero.

    Returns

    The resulting reference count.

    Returns number

QueryInterface

  • Parameters

    • aIID: object
    • Optional aInstancePtr: object

    Returns any

  • A run time mechanism for interface discovery.

    Returns

    NS_OK if the interface is supported by the associated instance, NS_NOINTERFACE if it is not.

    aInstancePtr must not be null.

    Parameters

    • aIID: object

      [in] A requested interface IID

    • aInstancePtr: object

      [out] A pointer to an interface pointer to receive the result.

    Returns void

Release

  • Decreases the reference count for this interface. Generally, if the reference count returns to zero, the associated instance is deleted.

    Returns

    The resulting reference count.

    Returns number

make

  • Create a new Finalization Witness.

    A finalization witness is an object whose sole role is to broadcast when it is garbage-collected. Once the witness is created, call method its method |forget()| to prevent the broadcast.

    Returns

    An object with a single method |forget()|.

    Parameters

    • aTopic: string

      The topic that the witness will broadcast using Services.obs.

    • aString: wstring

      The string that the witness will broadcast.

    Returns any

Settings

Member Visibility

Theme

Generated using TypeDoc