[转]beego safe map
发布时间:2020-12-16 19:00:46 所属栏目:大数据 来源:网络整理
导读:package beegoimport ("sync")type BeeMap struct {lock *sync.RWMutexbm map[interface{}]interface{}}func NewBeeMap() *BeeMap {return BeeMap{lock: new(sync.RWMutex),bm: make(map[interface{}]interface{}),}}//Get from maps return the k's valuefu
package beego import ( "sync" ) type BeeMap struct { lock *sync.RWMutex bm map[interface{}]interface{} } func NewBeeMap() *BeeMap { return &BeeMap{ lock: new(sync.RWMutex),bm: make(map[interface{}]interface{}),} } //Get from maps return the k's value func (m *BeeMap) Get(k interface{}) interface{} { m.lock.RLock() defer m.lock.RUnlock() if val,ok := m.bm[k]; ok { return val } return nil } // Maps the given key and value. Returns false // if the key is already in the map and changes nothing. func (m *BeeMap) Set(k interface{},v interface{}) bool { m.lock.Lock() defer m.lock.Unlock() if val,ok := m.bm[k]; !ok { m.bm[k] = v } else if val != v { m.bm[k] = v } else { return false } return true } // Returns true if k is exist in the map. func (m *BeeMap) Check(k interface{}) bool { m.lock.RLock() defer m.lock.RUnlock() if _,ok := m.bm[k]; !ok { return false } return true } func (m *BeeMap) Delete(k interface{}) { m.lock.Lock() defer m.lock.Unlock() delete(m.bm,k) } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |