49 lines
1.2 KiB
Plaintext
49 lines
1.2 KiB
Plaintext
package cache
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import (
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"sync"
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)
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// SliceCache结构体代表基于切片的缓存，内部使用切片存储元素，并通过读写锁保证并发安全
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type SliceCache struct {
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data []interface{}
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rwmu sync.RWMutex
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}
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// NewSliceCache创建并返回一个新的基于切片的缓存实例
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func NewSliceCache() *SliceCache {
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return &SliceCache{
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data: make([]interface{}, 0),
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}
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}
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// Add方法用于向切片缓存中添加元素，写操作加写锁保证并发安全
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func (sc *SliceCache) Add(element interface{}) {
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sc.rwmu.Lock()
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sc.data = append(sc.data, element)
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sc.rwmu.Unlock()
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}
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// GetAll方法用于获取切片缓存中的所有元素，读操作加读锁允许并发读
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func (sc *SliceCache) GetAll() []interface{} {
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sc.rwmu.RLock()
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result := make([]interface{}, len(sc.data))
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copy(result, sc.data)
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sc.rwmu.RUnlock()
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return result
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}
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// Remove方法用于从切片缓存中删除指定元素，写操作加写锁保证并发安全
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func (sc *SliceCache) Remove(element interface{}) bool {
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sc.rwmu.Lock()
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for i, e := range sc.data {
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if e == element {
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sc.data = append(sc.data[:i], sc.data[i+1:]...)
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sc.rwmu.Unlock()
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return true
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}
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}
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sc.rwmu.Unlock()
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return false
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}
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