From 2738b2a845e4ad1ce7ed22b6de09bd1a19de944c Mon Sep 17 00:00:00 2001
From: Roman Volosatovs <roman@profian.com>
Date: Fri, 8 Jul 2022 17:24:42 +0200
Subject: [PATCH] os: add SyscallError.Timeout

Signed-off-by: Roman Volosatovs <roman@profian.com>
---
 src/os/errors.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/os/errors.go b/src/os/errors.go
index 83f04b0fa3..74c77c902d 100644
--- a/src/os/errors.go
+++ b/src/os/errors.go
@@ -70,6 +70,16 @@ func (e *SyscallError) Error() string { return e.Syscall + ": " + e.Err.Error()
 
 func (e *SyscallError) Unwrap() error { return e.Err }
 
+type timeout interface {
+	Timeout() bool
+}
+
+// Timeout reports whether this error represents a timeout.
+func (e *SyscallError) Timeout() bool {
+	t, ok := e.Err.(timeout)
+	return ok && t.Timeout()
+}
+
 func IsExist(err error) bool {
 	return underlyingErrorIs(err, ErrExist)
 }