From 6c1ffe99157de5e41e77eda2da08640ea46eb3ab Mon Sep 17 00:00:00 2001
From: Iurii Krasnoshchok <aka.rider@gmail.com>
Date: Fri, 14 Feb 2020 17:24:11 +0100
Subject: [PATCH] errors: add new function Temporary(error) bool

---
 src/errors/errors.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/errors/errors.go b/src/errors/errors.go
index d923ad4b703ad5..028f4613b712b9 100644
--- a/src/errors/errors.go
+++ b/src/errors/errors.go
@@ -67,3 +67,11 @@ type errorString struct {
 func (e *errorString) Error() string {
 	return e.s
 }
+
+// Temporary returns true if it makes sense to retry the call that returned the error.
+func Temporary(err error) bool {
+	if err, ok := err.(interface{ Temporary() bool }); ok {
+		return err.Temporary()
+	}
+	return false
+}