connectivity_policy_impl.hpp

Go to the documentation of this file.

/******************************************************************************
** Copyright © 2015 by J.M.McGuiness, isimud@hussar.me.uk
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
 
namespace isimud { namespace ISIMUD_VER_NAMESPACE { namespace exchanges { namespace MIT { namespace common {
 
template<class LogonT> inline
connectivity_policy<LogonT>::connectivity_policy(gateways_t const &gws, logon_args_t const &logon, logoff_args_t const &logoff) noexcept(true)
: gateways(gws), logon_args(logon), logoff_args(logoff) {
}
 
template<class LogonT>
template<class ConnectFn> inline void
connectivity_policy<LogonT>::operator()(ConnectFn const &cnx) const noexcept(false) {
   if (connection_failed(cnx, gateways.primary_gateway)) {
      boost::exception_ptr cnx_failed(connection_failed(cnx, gateways.secondary_gateway));
      if (cnx_failed) {
         boost::rethrow_exception(cnx_failed);
      }
   }
}
 
template<class LogonT>
template<class ConnectFn> inline boost::exception_ptr
connectivity_policy<LogonT>::connection_failed(ConnectFn const &cnx, endpoint_t const &endpoint) noexcept(true) {
   boost::exception_ptr cnx_failed{};
   for (unsigned i=0; i<max_attempts; ++i) {
      try {
         cnx(boost::asio::ip::tcp::endpoint(endpoint.first, endpoint.second));
         break;
      } catch (...) {
         cnx_failed=boost::current_exception();
         std::this_thread::sleep_for(min_timeout);
      }
   }
   return cnx_failed;
}
 
template<class MsgT>
template<class ClientCxn>
inline
server_hb_t<MsgT>::server_hb_t(ClientCxn &cxn)
: base_t(cxn, []() {return typename base_t::hb_t{};}) {
}
 
} } } } }