多线程锁等待，导致主线程等待并卡死的紧急Bug报告

[LuCaiOS]

我们在APM监测到这个库导致了很多卡死，看日志是因为递归锁导致的多线程访问锁等待导致的卡死问题。
libsystem_kernel.dylib
___psynch_mutexwait (in libsystem_kernel.dylib)

libsystem_pthread.dylib
__pthread_mutex_firstfit_lock_wait (in libsystem_pthread.dylib)

libsystem_pthread.dylib
__pthread_mutex_firstfit_lock_slow (in libsystem_pthread.dylib)

Foundation
-[NSRecursiveLock lock] (in Foundation)

pregnancy
-[KTVHCDataUnitPool lock] (in pregnancy:KTVHCDataUnitPool.m:285)

pregnancy
-[KTVHCDataUnitPool archiveIfNeeded] (in pregnancy:KTVHCDataUnitPool.m:246)

CoreFoundation
_CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER (in CoreFoundation)

CoreFoundation
____CFXRegistrationPost_block_invoke (in CoreFoundation)

CoreFoundation
__CFXRegistrationPost (in CoreFoundation)

CoreFoundation
__CFXNotificationPost (in CoreFoundation)

Foundation
-[NSNotificationCenter postNotificationName:object:userInfo:] (in Foundation)

UIKitCore
-[UIApplication _deactivateForReason:notify:] (in UIKitCore)

UIKitCore
-[_UISceneLifecycleMultiplexer _performBlock:withApplicationOfDeactivationReasons:fromReasons:] (in UIKitCore)

UIKitCore
-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] (in UIKitCore)

UIKitCore
-[_UISceneLifecycleMultiplexer uiScene:transitionedFromState:withTransitionContext:] (in UIKitCore)

UIKitCore
___186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block_invoke (in UIKitCore)

UIKitCore
+[BSAnimationSettings(UIKit) tryAnimatingWithSettings:actions:completion:] (in UIKitCore)

UIKitCore
__UISceneSettingsDiffActionPerformChangesWithTransitionContext (in UIKitCore)

UIKitCore
-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:] (in UIKitCore)

UIKitCore
__64-[UIScene scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke.615 (in UIKitCore)

UIKitCore
-[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:] (in UIKitCore)

UIKitCore
-[UIScene scene:didUpdateWithDiff:transitionContext:completion:] (in UIKitCore)

UIKitCore
-[UIApplicationSceneClientAgent scene:handleEvent:withCompletion:] (in UIKitCore)
`

[LuCaiOS]

类似的问题还有一个上报
`1
libsystem_kernel.dylib
___psynch_mutexwait (in libsystem_kernel.dylib)

2
libsystem_pthread.dylib
__pthread_mutex_firstfit_lock_wait (in libsystem_pthread.dylib)

3
libsystem_pthread.dylib
__pthread_mutex_firstfit_lock_slow (in libsystem_pthread.dylib)

4
Foundation
-[NSRecursiveLock lock] (in Foundation)

5
pregnancy
-[KTVHCDataUnit lock] (in pregnancy:KTVHCDataUnit.m:338)

6
pregnancy
-[KTVHCDataUnit encodeWithCoder:] (in pregnancy:KTVHCDataUnit.m:60)

7
Foundation
__encodeObject (in Foundation)

8
Foundation
-[NSKeyedArchiver _encodeArrayOfObjects:forKey:] (in Foundation)

9
Foundation
-[NSArray(NSArray) encodeWithCoder:] (in Foundation)

10
Foundation
__encodeObject (in Foundation)

11
Foundation
+[NSKeyedArchiver archiveRootObject:toFile:] (in Foundation)

12
pregnancy
-[KTVHCDataUnitQueue archive] (in pregnancy:KTVHCDataUnitQueue.m:89)

13
pregnancy
-[KTVHCDataUnitPool archiveIfNeeded] (in pregnancy:KTVHCDataUnitPool.m:249)

14
CoreFoundation
_CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER (in CoreFoundation)

15
CoreFoundation
____CFXRegistrationPost_block_invoke (in CoreFoundation)

16
CoreFoundation
__CFXRegistrationPost (in CoreFoundation)

17
CoreFoundation
__CFXNotificationPost (in CoreFoundation)

18
Foundation
-[NSNotificationCenter postNotificationName:object:userInfo:] (in Foundation)

19
UIKitCore
___47-[UIApplication _applicationDidEnterBackground]_block_invoke (in UIKitCore)`