1.4.5.2

EdgeNode/internal/utils/fnv/hash.go

@@ -0,0 +1,30 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package fnv
+
+const (
+	offset64 uint64 = 14695981039346656037
+	prime64  uint64 = 1099511628211
+)
+
+// HashString
+// 非unique Hash
+func HashString(key string) uint64 {
+	var hash = offset64
+	for _, b := range key {
+		hash ^= uint64(b)
+		hash *= prime64
+	}
+	return hash
+}
+
+// Hash
+// 非unique Hash
+func Hash(key []byte) uint64 {
+	var hash = offset64
+	for _, b := range key {
+		hash ^= uint64(b)
+		hash *= prime64
+	}
+	return hash
+}

EdgeNode/internal/utils/fnv/hash_test.go

@@ -0,0 +1,32 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package fnv_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/utils/fnv"
+	"github.com/iwind/TeaGo/types"
+	"testing"
+)
+
+func TestHash(t *testing.T) {
+	for _, key := range []string{"costarring", "liquid", "hello"} {
+		var h = fnv.HashString(key)
+		t.Log(key + " => " + types.String(h))
+	}
+}
+
+func BenchmarkHashString(b *testing.B) {
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			_ = fnv.HashString("abcdefh")
+		}
+	})
+}
+
+func BenchmarkHashString_Long(b *testing.B) {
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			_ = fnv.HashString("HELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLD")
+		}
+	})
+}