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map.go
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map.go
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/*
* Copyright (c) 2021 NetEase Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Project: CurveAdm
* Created Date: 2021-10-15
* Author: Jingli Chen (Wine93)
*/
// __SIGN_BY_WINE93__
package utils
import (
"sync"
)
type SafeMap struct {
sync.RWMutex
Map map[string]interface{}
transaction bool
}
func NewSafeMap() *SafeMap {
return &SafeMap{Map: map[string]interface{}{}}
}
func (m *SafeMap) Get(key string) interface{} {
if m.transaction {
val, _ := m.Map[key]
return val
}
m.RLock()
defer m.RUnlock()
val, _ := m.Map[key]
return val
}
func (m *SafeMap) Set(key string, value interface{}) {
if m.transaction {
m.Map[key] = value
return
}
m.Lock()
defer m.Unlock()
m.Map[key] = value
}
func (m *SafeMap) TX(callback func(m *SafeMap) error) error {
m.Lock()
m.transaction = true
err := callback(m)
m.transaction = false
m.Unlock()
return err
}