commandGate DeclarationIOCommandGate *commandGate; OverviewThe IOCommandGate for this audio engine - attached to the driver's IOWorkLoop. See AlsoInstance VariablesworkLoopuserClientsstatusstatesampleRaterunEraseHeadoutputStreamsnumSampleFramesPerBuffernumErasesPerBuffernumActiveUserClientsisRegisteredinputStreamsdeviceStartedAudioEnginedefaultAudioControlsconfigurationChangeInProgressaudioEngineStopPositionaudioDevice