74 lines
1.5 KiB
Go
74 lines
1.5 KiB
Go
// Beego (http://beego.me/)
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// @description beego is an open-source, high-performance web framework for the Go programming language.
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// @link http://github.com/astaxie/beego for the canonical source repository
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// @license http://github.com/astaxie/beego/blob/master/LICENSE
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// @authors astaxie
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package utils
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import (
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"sync"
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)
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type BeeMap struct {
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lock *sync.RWMutex
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bm map[interface{}]interface{}
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}
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// NewBeeMap return new safemap
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func NewBeeMap() *BeeMap {
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return &BeeMap{
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lock: new(sync.RWMutex),
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bm: make(map[interface{}]interface{}),
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}
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}
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// Get from maps return the k's value
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func (m *BeeMap) Get(k interface{}) interface{} {
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m.lock.RLock()
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defer m.lock.RUnlock()
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if val, ok := m.bm[k]; ok {
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return val
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}
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return nil
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}
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// Maps the given key and value. Returns false
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// if the key is already in the map and changes nothing.
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func (m *BeeMap) Set(k interface{}, v interface{}) bool {
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m.lock.Lock()
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defer m.lock.Unlock()
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if val, ok := m.bm[k]; !ok {
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m.bm[k] = v
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} else if val != v {
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m.bm[k] = v
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} else {
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return false
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}
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return true
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}
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// Returns true if k is exist in the map.
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func (m *BeeMap) Check(k interface{}) bool {
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m.lock.RLock()
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defer m.lock.RUnlock()
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if _, ok := m.bm[k]; !ok {
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return false
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}
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return true
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}
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// Delete the given key and value.
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func (m *BeeMap) Delete(k interface{}) {
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m.lock.Lock()
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defer m.lock.Unlock()
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delete(m.bm, k)
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}
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// Items returns all items in safemap.
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func (m *BeeMap) Items() map[interface{}]interface{} {
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m.lock.RLock()
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defer m.lock.RUnlock()
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return m.bm
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}
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