From 1594be8dc12cfcd49ff2ce1b25b6c680666586fb Mon Sep 17 00:00:00 2001
From: Sven Czarnian <devel@svcz.de>
Date: Thu, 25 Nov 2021 22:26:26 +0100
Subject: [PATCH] adapt to avoid blocking calls

---
 src/com/Backend.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/com/Backend.cpp b/src/com/Backend.cpp
index 0ec52fa..f8bfa59 100644
--- a/src/com/Backend.cpp
+++ b/src/com/Backend.cpp
@@ -34,6 +34,9 @@ bool Backend::initialize(const Communication& configuration) {
         return false;
     if (false == this->setSocketKey(configuration.clientPrivateIdentifier, zmq::sockopt::curve_secretkey))
         return false;
+    this->m_socket->set(zmq::sockopt::rcvtimeo, 500);
+    this->m_socket->set(zmq::sockopt::req_correlate, 1);
+    this->m_socket->set(zmq::sockopt::req_relaxed, 1);
 
     /* connect to the server */
     try {
@@ -68,7 +71,6 @@ std::shared_ptr<aman::AircraftSequence> Backend::receiveSequence() {
         return nullptr;
 
     try {
-        //auto result = this->m_socket->recv(message, zmq::recv_flags::dontwait);
         auto result = this->m_socket->recv(message);
         if (false == result.has_value() || 0 == result.value())
             return nullptr;