implement common logger

Signed-off-by: Valery Piashchynski <[email protected]>

1 files changed, 35 insertions, 0 deletions

diff --git a/utils/race_checker.go b/utils/race_checker.go
new file mode 100644
index 00000000..cd5ed556
--- /dev/null
+++ b/utils/race_checker.go
@@ -0,0 +1,35 @@
+//go:build race
+
+package utils
+
+import (
+	"crypto/sha512"
+	"fmt"
+	"runtime"
+)
+
+func SetChecker(b []byte) {
+	if len(b) == 0 {
+		return
+	}
+	c := checkIfConst(b)
+	go c.isStillConst()
+	runtime.SetFinalizer(c, (*constSlice).isStillConst)
+}
+
+type constSlice struct {
+	b        []byte
+	checksum [64]byte
+}
+
+func checkIfConst(b []byte) *constSlice {
+	c := &constSlice{b: b}
+	c.checksum = sha512.Sum512(c.b)
+	return c
+}
+
+func (c *constSlice) isStillConst() {
+	if sha512.Sum512(c.b) != c.checksum {
+		panic(fmt.Sprintf("mutable access detected 0x%012x", &c.b[0]))
+	}
+}