Function NewLRURevisionCache

db/revision_cache_lru.go:143–157

Creates a revision cache with the given capacity and an optional loader function.

(revCacheOptions *RevisionCacheOptions, backingStores map[uint32]RevisionCacheBackingStore, cacheHitStat *base.SgwIntStat, cacheMissStat *base.SgwIntStat, cacheNumItemsStat *base.SgwIntStat, revCacheMemoryStat *base.SgwIntStat)

// Creates a revision cache with the given capacity and an optional loader function.
func NewLRURevisionCache(revCacheOptions *RevisionCacheOptions, backingStores map[uint32]RevisionCacheBackingStore, cacheHitStat *base.SgwIntStat, cacheMissStat *base.SgwIntStat, cacheNumItemsStat *base.SgwIntStat, revCacheMemoryStat *base.SgwIntStat) *LRURevisionCache {

	return &LRURevisionCache{
		cache:                map[IDAndRev]*list.Element{},
		hlvCache:             map[IDandCV]*list.Element{},
		lruList:              list.New(),
		capacity:             revCacheOptions.MaxItemCount,
		backingStores:        backingStores,
		cacheHits:            cacheHitStat,
		cacheMisses:          cacheMissStat,
		cacheNumItems:        cacheNumItemsStat,
		cacheMemoryBytesStat: revCacheMemoryStat,
		memoryCapacity:       revCacheOptions.MaxBytes,
	}
}

// Looks up a revision from the cache.
// Returns the body of the revision, its history, and the set of channels it's in.