From 85aab51bd4e1be0d907f6731ba813cd2ea90087f Mon Sep 17 00:00:00 2001
From: Alexey Rybalchenko <alexryba@gmail.com>
Date: Tue, 28 Nov 2017 15:37:41 +0100
Subject: [PATCH] FairMQ: Add test for example/advanced/Region.

Also fix a regression in nanomsg transport.
---
 fairmq/nanomsg/FairMQSocketNN.cxx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fairmq/nanomsg/FairMQSocketNN.cxx b/fairmq/nanomsg/FairMQSocketNN.cxx
index 04f51cd0..365732b3 100644
--- a/fairmq/nanomsg/FairMQSocketNN.cxx
+++ b/fairmq/nanomsg/FairMQSocketNN.cxx
@@ -244,7 +244,10 @@ int64_t FairMQSocketNN::Send(vector<unique_ptr<FairMQMessage>>& msgVec, const in
         packer.pack_bin(msgVec[i]->GetSize());
         packer.pack_bin_body(static_cast<char*>(msgVec[i]->GetData()), msgVec[i]->GetSize());
         // call region callback
-        static_cast<FairMQUnmanagedRegionNN*>(static_cast<FairMQMessageNN*>(msgVec[i].get())->fRegionPtr)->fCallback(msgVec[i]->GetMessage(), msgVec[i]->GetSize());
+        if (static_cast<FairMQMessageNN*>(msgVec[i].get())->fRegionPtr)
+        {
+            static_cast<FairMQUnmanagedRegionNN*>(static_cast<FairMQMessageNN*>(msgVec[i].get())->fRegionPtr)->fCallback(msgVec[i]->GetMessage(), msgVec[i]->GetSize());
+        }
     }
 
     int64_t nbytes = -1;