@class EFQueue, NSMutableSet; @interface EFResourcePool : NSObject { struct os_unfair_lock_s { unsigned int _os_unfair_lock_opaque; } _handleResourceLock; } @property (nonatomic) unsigned long long uncreatedResourcesCount; @property (readonly, nonatomic) EFQueue *activeResources; @property (readonly, nonatomic) NSMutableSet *inactiveResources; - (void)releaseResource:(id)a0; - (id)initWithCount:(unsigned long long)a0; - (void).cxx_destruct; - (id)acquireResource; @end