init

pkg/util/hash/hash.go

@@ -0,0 +1,35 @@
+// Copyright (C) 2025 wangyusong
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+package hash
+
+import "hash/fnv"
+
+func Sum64(s string) uint64 {
+	h := fnv.New64a()
+	h.Write([]byte(s))
+	
+	return h.Sum64()
+}
+
+func Sum64s(ss []string) uint64 {
+	h := fnv.New64a()
+	for _, s := range ss {
+		h.Write([]byte(s))
+		h.Write([]byte{0})
+	}
+
+	return h.Sum64()
+}