Inherits from NSMutableArray
Declared in SNThreadSafeArray.h

SNThreadSafeArray.m

A simple implementation of thread safe mutable array.Generally, access performance is lower than NSMutableArray, but higher than using @synchronized, NSLock, or pthread_mutex_t.It’s also compatible with the custom methods in NSArray(YYAdd) and NSMutableArray(YYAdd)source code from YYKit

Warning: Fast enumerate(for..in) and enumerator is not thread safe, use enumerate using block instead. When enumerate or sort with block/callback, do NOT send message to the array inside the block/callback.