GSInstrumentProvider

@objc
public protocol GSInstrumentProvider

Protocol that provides functions to get instruments. Those methods should no be used from Swift.

  • Gets an instrument.

    Note

    This method is for Objective-C only. Swift must use func getInstrument:.

    Declaration

    Swift

    @objc(getInstrument:)
func getInstrument(desc: ComponentDescriptor) -> Instrument?

    Parameters

    desc

    requested instrument. See Instruments api for available descriptors instances.

    Return Value

    requested instrument

  • Gets an instrument and registers an observer notified each time it changes.

    Note

    This method is for Objective-C only. Swift must use func getInstrument:desc:observer.

    Declaration

    Swift

    @objc(getInstrument:observer:)
func getInstrumentRef(desc: ComponentDescriptor, observer: @escaping (Instrument?) -> Void)
    -> GSInstrumentRef

    Parameters

    desc

    requested instrument. See Instruments api for available descriptors instances.
    observer

    observer to notify when the instrument changes

    Return Value

    reference to the requested instrument