hotime/cache/cache_memory.go
2021-05-24 07:27:41 +08:00

148 lines
2.3 KiB
Go

package cache
import (
. "../common"
"strings"
"sync"
"time"
)
type CacheMemory struct {
Time int64
Map
ContextBase
mutex *sync.RWMutex
}
//获取Cache键只能为string类型
func (this *CacheMemory) get(key string) interface{} {
this.Error.SetError(nil)
if this.Map == nil {
this.Map = Map{}
}
if this.Map[key] == nil {
return nil
}
data := this.Map.Get(key, &this.Error).(cacheData)
if this.GetError() != nil {
return nil
}
if data.time < time.Now().Unix() {
delete(this.Map, key)
return nil
}
return data.data
}
func (this *CacheMemory) refreshMap() {
go func() {
this.mutex.Lock()
defer this.mutex.Unlock()
for key, v := range this.Map {
data := v.(cacheData)
if data.time <= time.Now().Unix() {
delete(this.Map, key)
}
}
}()
}
//key value ,时间为时间戳
func (this *CacheMemory) set(key string, value interface{}, time int64) {
this.Error.SetError(nil)
var data cacheData
if this.Map == nil {
this.Map = Map{}
}
dd := this.Map[key]
if dd == nil {
data = cacheData{}
} else {
data = dd.(cacheData)
}
data.time = time
data.data = value
this.Map.Put(key, data)
}
func (this *CacheMemory) delete(key string) {
del := strings.Index(key, "*")
//如果通配删除
if del != -1 {
key = Substr(key, 0, del)
for k, _ := range this.Map {
if strings.Index(k, key) != -1 {
delete(this.Map, key)
}
}
} else {
delete(this.Map, key)
}
}
func (this *CacheMemory) Cache(key string, data ...interface{}) *Obj {
x := RandX(1, 100000)
if x > 99950 {
this.refreshMap()
}
if this.mutex == nil {
this.mutex = &sync.RWMutex{}
}
reData := &Obj{Data: nil}
if len(data) == 0 {
this.mutex.RLock()
reData.Data = this.get(key)
this.mutex.RUnlock()
return reData
}
tim := time.Now().Unix()
if len(data) == 1 && data[0] == nil {
this.mutex.Lock()
this.delete(key)
this.mutex.Unlock()
return reData
}
if len(data) == 1 {
if this.Time == 0 {
//this.Time = Config.GetInt64("cacheShortTime")
}
tim = tim + this.Time
}
if len(data) == 2 {
this.Error.SetError(nil)
tempt := ObjToInt64(data[1], &this.Error)
if tempt > tim {
tim = tempt
} else if this.GetError() == nil {
tim = tim + tempt
}
}
this.mutex.Lock()
this.set(key, data[0], tim)
this.mutex.Unlock()
return reData
}