void MDNetworkParticipant::network_datagram(Datagram &dg) { DatagramIterator dgi(dg); unsigned short channels = dgi.read_uint8(); if(channels == 1 && dgi.read_uint64() == CONTROL_MESSAGE) { unsigned short msg_type = dgi.read_uint16(); switch(msg_type) { case CONTROL_ADD_CHANNEL: { subscribe_channel(dgi.read_uint64()); } break; case CONTROL_REMOVE_CHANNEL: { unsubscribe_channel(dgi.read_uint64()); } break; case CONTROL_ADD_RANGE: { channel_t lo = dgi.read_uint64(); channel_t hi = dgi.read_uint64(); subscribe_range(lo, hi); } break; case CONTROL_REMOVE_RANGE: { channel_t lo = dgi.read_uint64(); channel_t hi = dgi.read_uint64(); unsubscribe_range(lo, hi); } break; case CONTROL_ADD_POST_REMOVE: { add_post_remove(dgi.read_string()); } break; case CONTROL_CLEAR_POST_REMOVE: { clear_post_removes(); } break; default: logger().error() << "MDNetworkParticipant got unknown control message, type : " << msg_type << std::endl; } return; } send(dg); }
void MDNetworkParticipant::receive_datagram(DatagramHandle dg) { DatagramIterator dgi(dg); uint16_t channels = dgi.read_uint8(); if(channels == 1 && dgi.read_channel() == CONTROL_MESSAGE) { uint16_t msg_type = dgi.read_uint16(); switch(msg_type) { case CONTROL_ADD_CHANNEL: { subscribe_channel(dgi.read_channel()); break; } case CONTROL_REMOVE_CHANNEL: { unsubscribe_channel(dgi.read_channel()); break; } case CONTROL_ADD_RANGE: { channel_t lo = dgi.read_channel(); channel_t hi = dgi.read_channel(); subscribe_range(lo, hi); break; } case CONTROL_REMOVE_RANGE: { channel_t lo = dgi.read_channel(); channel_t hi = dgi.read_channel(); unsubscribe_range(lo, hi); break; } case CONTROL_ADD_POST_REMOVE: { add_post_remove(dgi.read_datagram()); break; } case CONTROL_CLEAR_POST_REMOVE: { clear_post_removes(); break; } case CONTROL_SET_CON_NAME: { set_con_name(dgi.read_string()); break; } case CONTROL_SET_CON_URL: { set_con_url(dgi.read_string()); break; } default: logger().error() << "MDNetworkParticipant got unknown control message, type : " << msg_type << std::endl; } return; } route_datagram(dg); }
// handle_datagram is the handler for datagrams received from the Astron cluster void Client::handle_datagram(Datagram &dg, DatagramIterator &dgi) { channel_t sender = dgi.read_uint64(); uint16_t msgtype = dgi.read_uint16(); switch(msgtype) { case CLIENTAGENT_EJECT: { uint16_t reason = dgi.read_uint16(); std::string error_string = dgi.read_string(); send_disconnect(reason, error_string); return; } break; case CLIENTAGENT_DROP: { handle_drop(); return; } break; case CLIENTAGENT_SET_STATE: { m_state = (ClientState)dgi.read_uint16(); } break; case STATESERVER_OBJECT_SET_FIELD: { uint32_t do_id = dgi.read_uint32(); if(!lookup_object(do_id)) { m_log->warning() << "Received server-side field update for unknown object " << do_id << std::endl; return; } if(sender != m_channel) { uint16_t field_id = dgi.read_uint16(); handle_set_field(do_id, field_id, dgi); } } break; case STATESERVER_OBJECT_DELETE_RAM: { uint32_t do_id = dgi.read_uint32(); if(!lookup_object(do_id)) { m_log->warning() << "Received server-side object delete for unknown object " << do_id << std::endl; return; } if(m_seen_objects.find(do_id) != m_seen_objects.end()) { m_seen_objects.erase(do_id); m_id_history.insert(do_id); handle_remove_object(do_id); } if(m_owned_objects.find(do_id) != m_owned_objects.end()) { m_owned_objects.erase(do_id); handle_remove_ownership(do_id); } m_dist_objs.erase(do_id); } break; case STATESERVER_OBJECT_ENTER_OWNER_WITH_REQUIRED_OTHER: case STATESERVER_OBJECT_ENTER_OWNER_WITH_REQUIRED: { uint32_t do_id = dgi.read_uint32(); uint32_t parent = dgi.read_uint32(); uint32_t zone = dgi.read_uint32(); uint16_t dc_id = dgi.read_uint16(); m_owned_objects.insert(do_id); if(m_dist_objs.find(do_id) == m_dist_objs.end()) { VisibleObject obj; obj.id = do_id; obj.parent = parent; obj.zone = zone; obj.dcc = g_dcf->get_class(dc_id); m_dist_objs[do_id] = obj; } handle_add_ownership(do_id, parent, zone, dc_id, dgi, true); } break; case CLIENTAGENT_SET_CLIENT_ID: { if(m_channel != m_allocated_channel) { unsubscribe_channel(m_channel); } m_channel = dgi.read_uint64(); subscribe_channel(m_channel); } break; case CLIENTAGENT_SEND_DATAGRAM: { Datagram forward; forward.add_data(dgi.read_string()); send_datagram(forward); } break; case CLIENTAGENT_OPEN_CHANNEL: { subscribe_channel(dgi.read_uint64()); } break; case CLIENTAGENT_CLOSE_CHANNEL: { unsubscribe_channel(dgi.read_uint64()); } break; case CLIENTAGENT_ADD_POST_REMOVE: { add_post_remove(dgi.read_string()); } break; case CLIENTAGENT_CLEAR_POST_REMOVES: { clear_post_removes(); } break; case STATESERVER_OBJECT_ENTER_LOCATION_WITH_REQUIRED: case STATESERVER_OBJECT_ENTER_LOCATION_WITH_REQUIRED_OTHER: { uint32_t do_id = dgi.read_uint32(); uint32_t parent = dgi.read_uint32(); uint32_t zone = dgi.read_uint32(); uint16_t dc_id = dgi.read_uint16(); if(m_owned_objects.find(do_id) != m_owned_objects.end() || m_seen_objects.find(do_id) != m_seen_objects.end()) { return; } if(m_dist_objs.find(do_id) == m_dist_objs.end()) { VisibleObject obj; obj.id = do_id; obj.dcc = g_dcf->get_class(dc_id); obj.parent = parent; obj.zone = zone; m_dist_objs[do_id] = obj; } m_seen_objects.insert(do_id); handle_add_object(do_id, parent, zone, dc_id, dgi, msgtype == STATESERVER_OBJECT_ENTER_LOCATION_WITH_REQUIRED_OTHER); // TODO: This is a tad inefficient as it checks every pending interest. // In practice, there shouldn't be many add-interest operations active // at once, however. std::list<uint32_t> deferred_deletes; for(auto it = m_pending_interests.begin(); it != m_pending_interests.end(); ++it) { if(it->second->is_ready(m_dist_objs)) { handle_interest_done(it->second->m_interest_id, it->second->m_client_context); deferred_deletes.push_back(it->first); } } for(auto it = deferred_deletes.begin(); it != deferred_deletes.end(); ++it) { m_pending_interests.erase(*it); } } break; case STATESERVER_OBJECT_GET_ZONES_COUNT_RESP: { uint32_t context = dgi.read_uint32(); uint32_t count = dgi.read_uint32(); if(m_pending_interests.find(context) == m_pending_interests.end()) { m_log->error() << "Received GET_ZONES_COUNT_RESP for unknown context " << context << std::endl; return; } m_pending_interests[context]->store_total(count); if(m_pending_interests[context]->is_ready(m_dist_objs)) { handle_interest_done(m_pending_interests[context]->m_interest_id, m_pending_interests[context]->m_client_context); m_pending_interests.erase(context); } } break; case STATESERVER_OBJECT_CHANGING_LOCATION: { uint32_t do_id = dgi.read_uint32(); uint32_t n_parent = dgi.read_uint32(); uint32_t n_zone = dgi.read_uint32(); dgi.read_uint32(); // Old parent; we don't care about this. dgi.read_uint32(); // Old zone; we don't care about this. bool disable = true; for(auto it = m_interests.begin(); it != m_interests.end(); ++it) { Interest &i = it->second; for(auto it2 = i.zones.begin(); it2 != i.zones.end(); ++it2) { if(*it2 == n_zone) { disable = false; break; } } } if(m_dist_objs.find(do_id) != m_dist_objs.end()) { m_dist_objs[do_id].parent = n_parent; m_dist_objs[do_id].zone = n_zone; } if(disable && m_owned_objects.find(do_id) == m_owned_objects.end()) { handle_remove_object(do_id); m_seen_objects.erase(do_id); m_dist_objs.erase(do_id); } else { handle_change_location(do_id, n_parent, n_zone); } } break; default: m_log->error() << "Recv'd unk server msgtype " << msgtype << std::endl; } }