wp

util/until.go

@@ -0,0 +1,17 @@
+package util
+
+import (
+	"hash/crc32"
+)
+
+var (
+	castagnoliTable = crc32.MakeTable(crc32.Castagnoli)
+)
+
+func CalcChecksum(page []byte) uint32 {
+	return crc32.Checksum(page, castagnoliTable)
+}
+
+func IsValidChecksum(page []byte, checksum uint32) bool {
+	return crc32.Checksum(page, castagnoliTable) == checksum
+}