From 24419007962f1cdf4ce12ea3faaa6f80aee49a34 Mon Sep 17 00:00:00 2001
From: Paul Sokolovsky <pfalcon@users.sourceforge.net>
Date: Fri, 9 Jan 2015 17:28:51 +0200
Subject: [PATCH] os: check_error(): Return true for EINTR, to easily restart
 system calls.

---
 os/os/__init__.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/os/os/__init__.py b/os/os/__init__.py
index 58b750fa..82dcf0e4 100644
--- a/os/os/__init__.py
+++ b/os/os/__init__.py
@@ -58,8 +58,13 @@ environ = {"WARNING": "NOT_IMPLEMENTED"}
 
 
 def check_error(ret):
+    # Return True is error was EINTR (which usually means that OS call
+    # should be restarted).
     if ret == -1:
-        raise OSError(errno_.get())
+        e = errno_.get()
+        if e == errno.EINTR:
+            return True
+        raise OSError(e)
 
 def raise_error():
     raise OSError(errno_.get())