Add multi error

common/exceptions/timeout.go

@@ -0,0 +1,23 @@
+package exceptions
+
+import (
+	"errors"
+	"os"
+)
+
+type TimeoutError interface {
+	Timeout() bool
+}
+
+func IsTimeout(err error) bool {
+	if unwrapErr := errors.Unwrap(err); unwrapErr != nil {
+		err = unwrapErr
+	}
+	if ne, ok := err.(*os.SyscallError); ok {
+		err = ne.Err
+	}
+	if timeoutErr, isTimeoutErr := err.(TimeoutError); isTimeoutErr {
+		return timeoutErr.Timeout()
+	}
+	return false
+}