Exec low level cmd answer bug fixed (TANGODEVIC-2077)

src/XPSLib/Positioner.cpp

@@ -814,7 +814,8 @@ void Positioner::exec_low_level_cmd(std::string cmd, std::string &outParam)
 {
   char strOut[65535];
 
-  int s_b = SocketPool::instance()->get_blocking_socket();
+  // use non blocking socket to get an answer
+  int s_b = SocketPool::instance()->get_non_blocking_socket();
   int ret = ExecLowLevelCmd(s_b,
       const_cast <char*> (cmd.c_str()),
       &strOut[0]);