Data Structures

Here are the data structures with brief descriptions:

MutLockArray	Similar to NSMutableArray, but thread-safe. Internally, uses an NSMutableArray and a rwlock
MutLockDict	MutLockDict is a thread-safe version of NSMutableDictionary
MutNRLockArray	Subclass of MutLockArray; this class does NOT retain the objects in its array!
VVStopwatch	This class is used to measure how long it takes to do things; much easier to work with than NSDate
VVThreadLoop	Simple class for spawning a thread which executes at a specified interval- simpler and easier to work with than NSThread/NSTimer in multi-threaded programming environments