@class IMDispatchTimer, NSString, NSHashTable, NSDate, CUTDeferredTaskQueue;
@interface IMSystemMonitor : NSObject
@property (nonatomic) struct os_unfair_lock_s { unsigned int _os_unfair_lock_opaque; } ivarLock;
@property (nonatomic) BOOL isFastUserSwitched;
@property (nonatomic) long long resignActiveCount;
@property (retain, nonatomic) NSHashTable *_listeners;
@property (retain, nonatomic) NSHashTable *_earlyListeners;
@property (nonatomic) int userIdleToken;
@property (nonatomic) BOOL _idleOverride;
@property (nonatomic) BOOL _underFirstLock;
@property (nonatomic) int _dataProtectionState;
@property (retain, nonatomic) NSDate *_idleStart;
@property (nonatomic) BOOL listeningForSetupAssistantNotifications;
@property (retain, nonatomic) IMDispatchTimer *_timer;
@property (retain, nonatomic) NSString *_userID;
@property (nonatomic) double _delayTime;
@property (readonly, nonatomic) CUTDeferredTaskQueue *_postScreenLockedTask;
@property (readonly, nonatomic) CUTDeferredTaskQueue *_postScreenSaverStartedTask;
@property (nonatomic, setter=setActive:) BOOL isActive;
@property (nonatomic) BOOL usesPowerNotifications;
@property (nonatomic) BOOL receivesMemoryWarnings;
@property (nonatomic) BOOL usesSystemIdleState;
@property (nonatomic) BOOL watchesDataProtectionLockState;
@property (nonatomic) BOOL watchesSystemLockState;
@property (nonatomic) BOOL watchesScreenLightState;
@property (readonly, nonatomic) BOOL systemIsSleeping;
@property (readonly, nonatomic) BOOL systemIsShuttingDown;
@property (readonly, nonatomic) BOOL isScreenSaverActive;
@property (readonly, nonatomic) BOOL isScreenLocked;
@property (readonly, nonatomic) BOOL isScreenLit;
@property (readonly, retain, nonatomic) NSDate *dateScreenLightLastChanged;
@property (readonly, nonatomic) BOOL isSystemLocked;
@property (readonly, retain, nonatomic) NSDate *dateSystemLockLastChanged;
@property (readonly, nonatomic) BOOL isUnderDataProtectionLock;
@property (readonly, nonatomic) BOOL isUnderFirstDataProtectionLock;
@property (readonly, nonatomic) BOOL isBackingUp;
@property (readonly, nonatomic) BOOL isSetup;
@property (readonly, nonatomic) BOOL isSystemIdle;
@property (readonly, nonatomic) double systemIdleTime;
@property (readonly, nonatomic) BOOL isInBackground;
+ (id)sharedInstance;
- (void)addListener:(id)a0;
- (void)_receivedMemoryNotification;
- (void)_applicationWillEnterForeground:(id)a0;
- (void)removeListener:(id)a0;
- (void)_applicationWillResignActive:(id)a0;
- (void)_notificationCenterWillAppear:(id)a0;
- (void)_applicationDidBecomeActive:(id)a0;
- (id)init;
- (void)_setDataProtectionLockState:(int)a0;
- (void)dealloc;
- (void)_applicationDidEnterBackground:(id)a0;
- (void)_addEarlyListener:(id)a0;
- (void)_suspendEventsOnly:(id)a0;
- (void)_registerForLoginWindowNotifications;
- (void)_restoreDidStart;
- (void)_resume:(id)a0;
- (void)_suspend:(id)a0;
- (void)_deliverNotificationSelector:(SEL)a0;
- (void)_postScreenLocked;
- (void)_overrideAndDisableIdleTimer:(BOOL)a0;
- (void)_applicationDidRemoveDeactivationReason:(id)a0;
- (void)_updateIdleState;
- (void)_screenSaverStarted:(id)a0;
- (void)_checkIdleTime:(id)a0;
- (BOOL)_deviceStillUnderFirstLock;
- (void)_screenLocked:(id)a0;
- (void)_forceResumed;
- (void)_clearIdleTimer;
- (void)_setSystemScreenState:(BOOL)a0;
- (void)_armIdleTimer;
- (void)_applicationWillAddDeactivationReason:(id)a0;
- (void)_handleLoginWindowNotification:(id)a0;
- (void)_notificationCenterDidDisappear:(id)a0;
- (void)_removeEarlyListener:(id)a0;
- (void)_resumeEventsOnly:(id)a0;
- (void)_forceSuspended;
- (void)_systemWillSleep;
- (void).cxx_destruct;
- (void)_setSystemLockState:(BOOL)a0;
- (void)_systemDidWake;
- (BOOL)_alreadyLocked_isSystemIdle;
- (void)_unregisterForLoginWindowNotifications;
- (void)_unregisterForRestoreNotifications;
- (void)_checkRestoredFromBackup;
- (void)_postScreenSaverStarted;
- (void)_restoreDidStop;
- (void)_screenSaverStopped:(id)a0;
- (void)_registerForRestoreNotifications;
- (void)_alreadyLocked_clearIdleTimer;
- (void)_screenUnlocked:(id)a0;
- (void)_setupStateChanged;
- (void)_systemWillShutdown;
- (void)_setIdleState:(BOOL)a0;
- (BOOL)_isUnderDataProtectionLockForState:(int)a0;
- (void)_registerForSetupNotifications;
@end