package lru

import (
	"gitee.com/timedb/wheatCache/pkg/proto"
	"gitee.com/timedb/wheatCache/pkg/structure"
	"sync"
)

type SingleWorkFunc func() interface{}

const (
	OptionEventName  = "operateEvent"
	CleanEventName   = "clearEvent"
	WorkFuncEventKey = "workFunc"
)

var (
	lruCacheOnce sync.Once
	lruCache     *SingleCache
)

const (
	lruMaxSize     = 1 * 1024 * 1024 * 1024 * 8
	lruClearSize   = 0.5 * 1024 * 1024 * 1024 * 8
	lruEventDriver = 2000
)

type CacheInterface interface {
	Del() error
	Get(key *proto.BaseKey) (structure.KeyBaseInterface, bool)
	Add(key *proto.BaseKey, val structure.KeyBaseInterface)
	UpdateLruSize(length structure.UpdateLength)
	DelByKey(key *proto.BaseKey) error
}