53 lines
1.2 KiB
Plaintext
53 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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// Cache 结构体代表缓存
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type Cache struct {
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data map[string]any
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rwmu sync.RWMutex
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}
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// NewCache 创建并返回一个新的缓存实例
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func NewCache() *Cache {
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return &Cache{
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data: make(map[string]any),
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}
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}
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// Set 方法用于向缓存中设置键值对，写操作会加写锁保证并发安全
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func (c *Cache) set(key string, value any) {
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c.rwmu.Lock()
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defer c.rwmu.Unlock()
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c.data[key] = value
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}
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// Get 方法用于从缓存中根据键获取对应的值，读操作会加读锁允许并发读
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func (c *Cache) get(key string) any {
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c.rwmu.RLock()
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defer c.rwmu.RUnlock()
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value := c.data[key]
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return value
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}
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// Delete 方法用于从缓存中删除指定的键值对，写操作会加写锁保证并发安全
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func (c *Cache) Delete(key string) {
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c.rwmu.Lock()
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defer c.rwmu.Unlock()
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delete(c.data, key)
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}
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// GetData 方法用于从缓存中根据键获取对应的值，读操作会加读锁允许并发读
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func GetData[V any](c *Cache, key string) (value V, ok bool) {
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v := c.get(key)
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value, ok = v.(V)
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return
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}
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// SetData 方法用于向缓存中设置键值对，写操作会加写锁保证并发安全
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func SetData(c *Cache, key string, value any) {
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c.set(key, value)
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}
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