昔念
699db8406b
feat(base): 添加邮箱注册码功能及用户注册接口 - 在 `sessionManager` 中新增邮件注册码缓存管理实例和相关方法 - 实现生成、保存、验证、删除邮件注册码的逻辑 - 新增 `/reg` 和 `/email` 接口用于用户注册和发送验证码 - 引入 `golang-lru` 依赖以支持限流缓存功能 - 调整包导入顺序，优化代码结构 ```
1.5 KiB
1.5 KiB
golang-lru
This provides the lru package which implements a fixed-size
thread safe LRU cache. It is based on the cache in Groupcache.
Documentation
Full docs are available on Go Packages
LRU cache example
package main
import (
"fmt"
"github.com/hashicorp/golang-lru/v2"
)
func main() {
l, _ := lru.New[int, any](128)
for i := 0; i < 256; i++ {
l.Add(i, nil)
}
if l.Len() != 128 {
panic(fmt.Sprintf("bad len: %v", l.Len()))
}
}
Expirable LRU cache example
package main
import (
"fmt"
"time"
"github.com/hashicorp/golang-lru/v2/expirable"
)
func main() {
// make cache with 10ms TTL and 5 max keys
cache := expirable.NewLRU[string, string](5, nil, time.Millisecond*10)
// set value under key1.
cache.Add("key1", "val1")
// get value under key1
r, ok := cache.Get("key1")
// check for OK value
if ok {
fmt.Printf("value before expiration is found: %v, value: %q\n", ok, r)
}
// wait for cache to expire
time.Sleep(time.Millisecond * 12)
// get value under key1 after key expiration
r, ok = cache.Get("key1")
fmt.Printf("value after expiration is found: %v, value: %q\n", ok, r)
// set value under key2, would evict old entry because it is already expired.
cache.Add("key2", "val2")
fmt.Printf("Cache len: %d\n", cache.Len())
// Output:
// value before expiration is found: true, value: "val1"
// value after expiration is found: false, value: ""
// Cache len: 1
}