System/Library/PrivateFrameworks/PhotoFoundation.framework

PFMutualExclusionAssertion.h

Download PFMutualExclusionAssertion.h

1. NSObject

@interface PFMutualExclusionAssertion : NSObject {
    BOOL _inCriticalSection;
}

- (void)enterCriticalSection;
- (void)leaveCriticalSection;
- (void)performCriticalSection:(id /* block */)a0;

@end