Ring is a potentially useful module that is used internally to manage bounded, FIFO collections of items. The documentation is available in UNBOXED_COLLECTION.

Dll is a potentially useful module that is used internally to manage bounded, LRU collections of items. The documentation is available in UNBOXED_COLLECTION.

LRU_Collection is a COLLECTION meant to be used as a building block in a cache: specifically a cache with a Least-Recently Used replacement policy.

FIFO_Sloppy_Collection is a COLLECTION meant to be used as a building block in a cache: specifically a cache with a First In First Out replacement policy.

FIFO_Precise_Collection is a COLLECTION meant to be used as a building block in a cache: specifically a cache with a First In First Out replacement policy.