package utils 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) } func (m *BeeMap) Items() map[interface{}]interface{} { m.lock.RLock() defer m.lock.RUnlock() return m.bm }