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item.go
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item.go
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/*
* @Author: seekwe
* @Date: 2019-05-24 19:16:09
* @Last Modified by: seekwe
* @Last Modified time: 2019-05-25 13:53:54
*/
package zcache
import (
"sync"
"time"
)
// CacheItem CacheItem
type CacheItem struct {
sync.RWMutex
key interface{}
data interface{}
lifeSpan time.Duration
createdTime time.Time
accessedTime time.Time
accessCount int64
deleteCallback func(key interface{})
}
// newCacheItem newCacheItem
func newCacheItem(key interface{}, lifeSpan time.Duration, data interface{}) *CacheItem {
t := time.Now()
return &CacheItem{
key: key,
lifeSpan: lifeSpan,
createdTime: t,
accessedTime: t,
accessCount: 0,
deleteCallback: nil,
data: data,
}
}
// KeepAlive KeepAlive
func (item *CacheItem) KeepAlive() {
item.Lock()
defer item.Unlock()
item.accessedTime = time.Now()
item.accessCount++
}
// LifeSpan LifeSpan
func (item *CacheItem) LifeSpan() time.Duration {
return item.lifeSpan
}
// AccessedTime AccessedTime
func (item *CacheItem) AccessedTime() time.Time {
item.RLock()
defer item.RUnlock()
return item.accessedTime
}
// CreatedTime CreatedTime
func (item *CacheItem) CreatedTime() time.Time {
return item.createdTime
}
// AccessCount AccessCount
func (item *CacheItem) AccessCount() int64 {
item.RLock()
defer item.RUnlock()
return item.accessCount
}
// Key Key
func (item *CacheItem) Key() interface{} {
return item.key
}
// Data Data
func (item *CacheItem) Data() interface{} {
return item.data
}
// SetDeleteCallback SetDeleteCallback
func (item *CacheItem) SetDeleteCallback(f func(interface{})) {
item.Lock()
defer item.Unlock()
item.deleteCallback = f
}