golang-lru

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

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