mirror of
https://gitee.com/johng/gf.git
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116 lines
2.1 KiB
Go
116 lines
2.1 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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//
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package gset
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import (
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"fmt"
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"gitee.com/johng/gf/g/internal/rwmutex"
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)
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type IntSet struct {
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mu *rwmutex.RWMutex
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m map[int]struct{}
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}
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func NewIntSet(unsafe...bool) *IntSet {
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return &IntSet{
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m : make(map[int]struct{}),
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mu : rwmutex.New(unsafe...),
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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 (set *IntSet) Iterator(f func (v int) bool) {
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set.mu.RLock()
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defer set.mu.RUnlock()
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for k, _ := range set.m {
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if !f(k) {
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break
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}
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}
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}
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// 设置键
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func (set *IntSet) Add(item int) *IntSet {
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set.mu.Lock()
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set.m[item] = struct{}{}
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set.mu.Unlock()
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return set
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}
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// 批量添加设置键
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func (set *IntSet) BatchAdd(items []int) *IntSet {
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set.mu.Lock()
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for _, item := range items {
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set.m[item] = struct{}{}
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}
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set.mu.Unlock()
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return set
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}
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// 键是否存在
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func (set *IntSet) Contains(item int) bool {
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set.mu.RLock()
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_, exists := set.m[item]
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set.mu.RUnlock()
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return exists
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}
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// 删除键值对
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func (set *IntSet) Remove(key int) {
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set.mu.Lock()
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delete(set.m, key)
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set.mu.Unlock()
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}
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// 大小
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func (set *IntSet) Size() int {
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set.mu.RLock()
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l := len(set.m)
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set.mu.RUnlock()
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return l
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}
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// 清空set
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func (set *IntSet) Clear() {
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set.mu.Lock()
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set.m = make(map[int]struct{})
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set.mu.Unlock()
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}
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// 转换为数组
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func (set *IntSet) Slice() []int {
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set.mu.RLock()
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ret := make([]int, len(set.m))
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i := 0
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for item := range set.m {
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ret[i] = item
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i++
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}
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set.mu.RUnlock()
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return ret
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}
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// 转换为字符串
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func (set *IntSet) String() string {
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return fmt.Sprint(set.Slice())
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}
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func (set *IntSet) LockFunc(f func(m map[int]struct{})) {
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set.mu.Lock(true)
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defer set.mu.Unlock(true)
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f(set.m)
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}
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func (set *IntSet) RLockFunc(f func(m map[int]struct{})) {
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set.mu.RLock(true)
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defer set.mu.RUnlock(true)
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f(set.m)
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} |