Interface nsIUUIDGeneratorType

nsIUUIDGenerator is implemented by a service that can generate universally unique identifiers, ideally using any platform-native method for generating UUIDs.

Hierarchy

Methods

  • 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

  • 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

  • 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

  • Obtains a new UUID using appropriate platform-specific methods to obtain a nsID that can be considered to be globally unique.

    Returns

    an nsID filled in with a new UUID.

    Throws

    NS_ERROR_FAILURE if a UUID cannot be generated (e.g. if an underlying source of randomness is not available)

    Returns object

  • Obtain a new UUID like the generateUUID method, but place it in the provided nsID pointer instead of allocating a new nsID.

    Throws

    NS_ERROR_FAILURE if a UUID cannot be generated (e.g. if an underlying source of randomness is not available)

    Parameters

    • id: nsNonConstIDPtr

      an existing nsID pointer where the UUID will be stored.

    Returns void

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