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