NewChainStorageProvider creates a new ChainStorageProvider with the given storage providers, which should be sorted in order from fastest to slowest.

NewExpirationHeap creates a new ExpirationHeap.

ChainStorageProvider is a chained/layered storage provider which queries one or more other storage providers as to increase performance when available.

ExpirationEntry is an entry in the ExpirationHeap.

ExpirationHeap implements a heap that stores the expiration dates of objects.

ExpirationNotifier provides an efficient way to monitor the expiration of many objects.

A StorageProvider represents an object capable of storing and retrieving cached data.