cache

type CacheManager interface {

	// Init is called only once after creating the CacheManager object
	Init()

	// Has returns wheather this object is in the cache or not
	Has(types.ObjectIndex) bool

	// ObjectIndexStored is called to signal that this ObjectIndex has been stored
	ObjectIndexStored(types.ObjectIndex) bool

	// AddObjectIndex adds this ObjectIndex to the cache
	AddObjectIndex(types.ObjectIndex) error

	// UsedObjectIndex is called every time this part of a file has been used
	// to satisfy a client request
	UsedObjectIndex(types.ObjectIndex)

	// ConsumedSize returns the full size of all files currently in the cache
	ConsumedSize() config.BytesSize

	// ReplaceRemoveChannel makes this cache communicate its desire to remove objects
	// on this channel
	ReplaceRemoveChannel(chan<- types.ObjectIndex)

	// Stats returns statistics for this cache manager
	Stats() *CacheStats
}

type CacheStats struct {
	ID       string
	Hits     uint64
	Requests uint64
	Size     config.BytesSize
	Objects  uint64
}

type LRUCache struct {
	CacheZone *config.CacheZoneSection
	// contains filtered or unexported fields
}

type LRUElement struct {
	ListElem *list.Element
	ListTier int
}