@class NSObject, ARBufferPopulationRegistry; @protocol OS_dispatch_queue, ARBufferPopulationMonitorDelegate; @interface ARBufferPopulationMonitor : NSObject { ARBufferPopulationRegistry *_bufferPopulationRegistry; struct os_unfair_lock_s { unsigned int _os_unfair_lock_opaque; } _bufferPopulationRegistryLock; NSObject *_delegateQueue; struct __IOSurfaceNotifier { } *_surfaceNotifier; NSObject *_surfaceNotifierCallbackQueue; void *_weakReferenceForSurfaceNotifierCallback; } @property (readonly, nonatomic) unsigned long long count; @property (weak, nonatomic) id delegate; - (id)init; - (void)dealloc; - (id)description; - (void).cxx_destruct; - (id)initWithDelegate:(id)a0; - (unsigned long long)countWithLabel:(id)a0; - (void)emitEndSignpost:(int)a0 surfaceID:(unsigned long long)a1 count:(unsigned long long)a2 timestamp:(double)a3; - (void)emitStartSignpost:(int)a0 surfaceID:(unsigned long long)a1 count:(unsigned long long)a2 timestamp:(double)a3; - (void)trackDataBuffer:(struct __CVBuffer { } *)a0; - (void)trackDataBuffer:(struct __CVBuffer { } *)a0 withLabel:(id)a1 timestamp:(double)a2 signpostType:(int)a3; - (void)trackPixelBuffer:(struct __CVBuffer { } *)a0; - (void)trackPixelBuffer:(struct __CVBuffer { } *)a0 withLabel:(id)a1 timestamp:(double)a2 signpostType:(int)a3; - (void)trackSurface:(struct __IOSurface { } *)a0; - (void)trackSurface:(struct __IOSurface { } *)a0 withLabel:(id)a1 timestamp:(double)a2 signpostType:(int)a3; - (void)updateBufferPopulationRegistryWithReleasedSurfaceID:(unsigned int)a0; @end