mirror of
https://gitee.com/johng/gf.git
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176 lines
3.6 KiB
Go
176 lines
3.6 KiB
Go
// Copyright 2017 gf Author(https://gitee.com/johng/gf). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://gitee.com/johng/gf.
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//
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package gmap
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import (
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"sync"
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)
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type StringIntMap struct {
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mu sync.RWMutex
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m map[string]int
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}
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func NewStringIntMap() *StringIntMap {
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return &StringIntMap{
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m: make(map[string]int),
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}
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}
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// 给定回调函数对原始内容进行遍历，回调函数返回true表示继续遍历，否则停止遍历
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func (this *StringIntMap) Iterator(f func (k string, v int) bool) {
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this.mu.RLock()
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for k, v := range this.m {
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if !f(k, v) {
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break
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}
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}
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this.mu.RUnlock()
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}
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// 哈希表克隆
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func (this *StringIntMap) Clone() *map[string]int {
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m := make(map[string]int)
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this.mu.RLock()
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for k, v := range this.m {
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m[k] = v
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}
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this.mu.RUnlock()
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return &m
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}
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// 设置键值对
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func (this *StringIntMap) Set(key string, val int) {
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this.mu.Lock()
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this.m[key] = val
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this.mu.Unlock()
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}
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// 批量设置键值对
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func (this *StringIntMap) BatchSet(m map[string]int) {
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this.mu.Lock()
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for k, v := range m {
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this.m[k] = v
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}
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this.mu.Unlock()
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}
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// 获取键值
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func (this *StringIntMap) Get(key string) int {
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this.mu.RLock()
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val, _ := this.m[key]
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this.mu.RUnlock()
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return val
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}
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// 获取键值，如果键值不存在则写入默认值
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func (this *StringIntMap) GetWithDefault(key string, value int) int {
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this.mu.Lock()
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val, ok := this.m[key]
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if !ok {
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this.m[key] = value
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val = value
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}
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this.mu.Unlock()
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return val
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}
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// 删除键值对
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func (this *StringIntMap) Remove(key string) {
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this.mu.Lock()
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delete(this.m, key)
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this.mu.Unlock()
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}
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// 批量删除键值对
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func (this *StringIntMap) BatchRemove(keys []string) {
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this.mu.Lock()
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for _, key := range keys {
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delete(this.m, key)
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}
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this.mu.Unlock()
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}
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// 返回对应的键值，并删除该键值
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func (this *StringIntMap) GetAndRemove(key string) (int) {
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this.mu.Lock()
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val, exists := this.m[key]
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if exists {
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delete(this.m, key)
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}
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this.mu.Unlock()
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return val
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}
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// 返回键列表
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func (this *StringIntMap) Keys() []string {
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this.mu.RLock()
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keys := make([]string, 0)
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for key, _ := range this.m {
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keys = append(keys, key)
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}
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this.mu.RUnlock()
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return keys
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}
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// 返回值列表(注意是随机排序)
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func (this *StringIntMap) Values() []int {
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this.mu.RLock()
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vals := make([]int, 0)
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for _, val := range this.m {
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vals = append(vals, val)
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}
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this.mu.RUnlock()
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return vals
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}
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// 是否存在某个键
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func (this *StringIntMap) Contains(key string) bool {
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this.mu.RLock()
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_, exists := this.m[key]
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this.mu.RUnlock()
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return exists
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}
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// 哈希表大小
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func (this *StringIntMap) Size() int {
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this.mu.RLock()
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length := len(this.m)
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this.mu.RUnlock()
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return length
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}
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// 哈希表是否为空
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func (this *StringIntMap) IsEmpty() bool {
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this.mu.RLock()
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empty := (len(this.m) == 0)
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this.mu.RUnlock()
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return empty
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}
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// 清空哈希表
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func (this *StringIntMap) Clear() {
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this.mu.Lock()
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this.m = make(map[string]int)
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this.mu.Unlock()
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}
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// 使用自定义方法执行加锁修改操作
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func (this *StringIntMap) LockFunc(f func(m map[string]int)) {
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this.mu.Lock()
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f(this.m)
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this.mu.Unlock()
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}
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// 使用自定义方法执行加锁读取操作
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func (this *StringIntMap) RLockFunc(f func(m map[string]int)) {
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this.mu.RLock()
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f(this.m)
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this.mu.RUnlock()
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}
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