Use fastcache instead of ristretto

antireplay/cache.go

 package antireplay
 
-import "github.com/dgraph-io/ristretto"
+import "github.com/VictoriaMetrics/fastcache"
 
 var (
 	prefixObfuscated2 = []byte{0x00}
 )
 
 type cache struct {
-	data *ristretto.Cache
+	data *fastcache.Cache
 }
 
 func (c *cache) AddObfuscated2(data []byte) {
-	c.data.Set(keyObfuscated2(data), nil, int64(len(data)))
+	c.data.Set(keyObfuscated2(data), nil)
 }
 
 func (c *cache) AddTLS(data []byte) {
-	c.data.Set(keyTLS(data), nil, int64(len(data)))
+	c.data.Set(keyTLS(data), nil)
 }
 
 func (c *cache) HasObfuscated2(data []byte) bool {
-	_, ok := c.data.Get(keyObfuscated2(data))
-	return ok
+	return c.data.Has(keyObfuscated2(data))
 }
 
 func (c *cache) HasTLS(data []byte) bool {
-	_, ok := c.data.Get(keyTLS(data))
-	return ok
+	return c.data.Has(keyTLS(data))
 }
 
-func keyObfuscated2(data []byte) string {
-	return string(append(prefixObfuscated2, data...))
+func keyObfuscated2(data []byte) []byte {
+	return append(prefixObfuscated2, data...)
 }
 
-func keyTLS(data []byte) string {
-	return string(append(prefixTLS, data...))
+func keyTLS(data []byte) []byte {
+	return append(prefixTLS, data...)
 }

antireplay/init.go

 package antireplay
 
 import (
-	"math"
 	"sync"
 
-	"github.com/dgraph-io/ristretto"
+	"github.com/VictoriaMetrics/fastcache"
 
 	"mtg/config"
 )
 
 func Init() {
 	initOnce.Do(func() {
-		cost := float64(config.C.AntiReplayMaxSize) / 32.0
-		cost = math.Ceil(cost)
-
-		c, err := ristretto.NewCache(&ristretto.Config{
-			NumCounters: int64(cost) * 10,
-			MaxCost:     config.C.AntiReplayMaxSize,
-			BufferItems: 64,
-			Metrics:     false,
-		})
-		if err != nil {
-			panic(err)
-		}
-
-		Cache.data = c
+		Cache.data = fastcache.New(config.C.AntiReplayMaxSize)
 	})
 }

config/config.go

 	ReadBuffer  int `json:"read_buffer"`
 	CloakPort   int `json:"cloak_port"`
 
-	AntiReplayMaxSize int64 `json:"anti_replay_max_size"`
+	AntiReplayMaxSize int `json:"anti_replay_max_size"`
 
 	MultiplexPerConnection int `json:"multiplex_per_connection"`
 
 		case OptionTypeCloakPort:
 			C.CloakPort = int(opt.Value.(uint16))
 		case OptionTypeAntiReplayMaxSize:
-			C.AntiReplayMaxSize = int64(opt.Value.(units.Base2Bytes))
+			C.AntiReplayMaxSize = int(opt.Value.(units.Base2Bytes))
 		case OptionTypeMultiplexPerConnection:
 			C.MultiplexPerConnection = int(opt.Value.(uint))
 		case OptionTypeSecret:

go.mod

 go 1.13
 
 require (
+	github.com/VictoriaMetrics/fastcache v1.5.2
 	github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d
 	github.com/beevik/ntp v0.2.0
-	github.com/dgraph-io/ristretto v0.0.0-20191108194154-8d6a8a75b4ca
 	github.com/prometheus/client_golang v1.2.1
 	go.uber.org/multierr v1.4.0 // indirect
 	go.uber.org/zap v1.12.0

go.sum

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