mirror of
https://port.numenaute.org/aleajactaest/khanat-opennel-code.git
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839 lines
24 KiB
C++
839 lines
24 KiB
C++
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// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "stdnet.h"
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#include "nel/misc/time_nl.h"
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#include "nel/net/module_gateway.h"
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#include "nel/net/module.h"
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#include "nel/net/module_manager.h"
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#include "nel/net/module_socket.h"
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#include "nel/net/module_message.h"
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#include "nel/net/callback_client.h"
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#include "nel/net/callback_server.h"
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using namespace std;
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using namespace NLMISC;
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namespace NLNET
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{
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// keep alive delay in seconds of inactivity
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// NB : it is useless to set it at a value less than 100" because
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// according to RFC 1122 (Requirements for Internet Hosts),
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// the TCP transmission time out is a least of 100" before
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// closing a connection without acknowledge.
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// That means modules seens from a dead connection will only be
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// removed after little more than 100".
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const uint32 KEEP_ALIVE_DELAY = 120;
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/** the specialized route for server transport */
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class CL3ServerRoute : public CGatewayRoute
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{
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public:
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/// The id of the socket in the server
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TSockId SockId;
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/// Time stamp of last message received/emitted
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mutable uint32 LastCommTime;
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CL3ServerRoute(IGatewayTransport *transport)
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: CGatewayRoute(transport),
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LastCommTime(CTime::getSecondsSince1970())
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{
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}
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void sendMessage(const CMessage &message) const;
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};
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#define LAYER3_SERVER_CLASS_NAME "L3Server"
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/** Gateway transport using layer 3 server */
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class CGatewayL3ServerTransport : public IGatewayTransport
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{
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friend class CL3ServerRoute;
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public:
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/// The callback server that receive connection and dispatch message
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auto_ptr<CCallbackServer> _CallbackServer;
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/// A static mapper to retrieve transport from the CCallbackServer pointer
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typedef map<CCallbackNetBase*, CGatewayL3ServerTransport*> TDispatcherIndex;
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static TDispatcherIndex _DispatcherIndex;
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/// The table that keep track of all routes
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typedef std::map<TSockId, CL3ServerRoute*> TRouteMap;
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TRouteMap _Routes;
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/// Constructor
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CGatewayL3ServerTransport(const IGatewayTransport::TCtorParam ¶m)
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: IGatewayTransport(param)
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{
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}
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~CGatewayL3ServerTransport()
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{
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if (_CallbackServer.get() != NULL)
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{
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// the transport is still open, close it before destruction
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closeServer();
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}
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}
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const std::string &getClassName() const
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{
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static string className(LAYER3_SERVER_CLASS_NAME);
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return className;
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}
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virtual void update()
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{
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H_AUTO(L3S_update);
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// update the callback server
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if (_CallbackServer.get() != NULL)
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_CallbackServer->update2(100, 0);
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uint32 now = CTime::getSecondsSince1970();
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// check each connected client for keep alive
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TRouteMap::iterator first(_Routes.begin()), last(_Routes.end());
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for (; first != last; ++first)
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{
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CL3ServerRoute *route = first->second;
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if (now - route->LastCommTime > KEEP_ALIVE_DELAY)
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{
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nldebug("NETL6:L3Server: sending KeepAlive message");
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// send a keep alive message
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CMessage keepAlive("KA");
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route->sendMessage(keepAlive);
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// update the last event time
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route->LastCommTime = CTime::getSecondsSince1970();
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}
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// force a flush of the connection
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_CallbackServer->flush(route->SockId);
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}
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}
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virtual uint32 getRouteCount() const
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{
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return (uint32)_Routes.size();
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}
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void dump(NLMISC::CLog &log) const
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{
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IModuleManager &mm = IModuleManager::getInstance();
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log.displayNL(" NeL Net layer 3 transport, SERVER mode");
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if (_CallbackServer.get() == NULL)
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{
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log.displayNL(" The server is currently closed.");
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}
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else
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{
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log.displayNL(" The server is open on '%s' and support %u routes :",
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_CallbackServer->listenAddress().asString().c_str(),
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_Routes.size());
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TRouteMap::const_iterator first(_Routes.begin()), last(_Routes.end());
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for (; first != last; ++first)
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{
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TSockId sockId = first->first;
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CL3ServerRoute *route = first->second;
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log.displayNL(" + route to '%s', %u entries in the proxy translation table :",
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sockId->getTcpSock()->remoteAddr().asString().c_str(),
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route->ForeignToLocalIdx.getAToBMap().size());
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{
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CGatewayRoute::TForeignToLocalIdx::TAToBMap::const_iterator first(route->ForeignToLocalIdx.getAToBMap().begin()), last(route->ForeignToLocalIdx.getAToBMap().end());
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for (; first != last; ++first)
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{
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IModuleProxy *modProx = mm.getModuleProxy(first->second);
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log.displayNL(" - Proxy '%s' : local proxy id %u => foreign module id %u",
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modProx != NULL ? modProx->getModuleName().c_str() : "ERROR, invalid module",
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first->second,
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first->first);
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}
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}
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}
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log.displayNL(" Dumping send buffers states");
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_CallbackServer->displaySendQueueStat(&log);
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log.displayNL(" Dumping receive buffers states");
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_CallbackServer->displayReceiveQueueStat(&log);
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}
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}
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void onCommand(const CMessage &/* command */) throw (EInvalidCommand)
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{
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// nothing done for now
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throw EInvalidCommand();
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}
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/// The gateway send a textual command to the transport
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bool onCommand(const TParsedCommandLine &command) throw (EInvalidCommand)
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{
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if (command.SubParams.size() < 1)
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throw EInvalidCommand();
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const std::string &commandName = command.SubParams[0]->ParamName;
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if (commandName == "open")
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{
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const TParsedCommandLine *portParam = command.getParam("port");
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if (portParam == NULL)
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throw EInvalidCommand();
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uint16 port;
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fromString(portParam->ParamValue, port);
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openServer(port);
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}
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else if (commandName == "close")
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{
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closeServer();
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}
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else
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return false;
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return true;
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}
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/// Open the server by starting listing for incoming connection on the specified port
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void openServer(uint16 port) throw (ETransportError)
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{
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if (_CallbackServer.get() != NULL)
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throw ETransportError("openServer : The server is already open");
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// create a new callback server
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auto_ptr<CCallbackServer> cbs = auto_ptr<CCallbackServer> (new CCallbackServer());
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// register the callbacks
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cbs->setConnectionCallback(cbConnection, static_cast<IGatewayTransport*>(this));
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cbs->setDisconnectionCallback(cbDisconnection, static_cast<IGatewayTransport*>(this));
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cbs->setDefaultCallback(cbDispatchMessage);
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// open the server
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cbs->init(port);
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_CallbackServer = cbs;
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// register it in the dispatcher
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_DispatcherIndex.insert(make_pair(_CallbackServer.get(), this));
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}
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/// Close the server, this will close the listing socket and any active connection
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void closeServer()
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{
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if (_CallbackServer.get() == NULL)
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throw ETransportError("closeServer : The server is not open");
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// close all client connections
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while (!_Routes.empty())
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{
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CL3ServerRoute *route = _Routes.begin()->second;
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// close the connection
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_CallbackServer->disconnect(route->SockId);
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// callback the gateway
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_Gateway->onRouteRemoved(route);
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// delete route and cleanup
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_Routes.erase(_Routes.begin());
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delete route;
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}
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// Remove the dispatcher info
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_DispatcherIndex.erase(_CallbackServer.get());
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// release the callback server
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delete _CallbackServer.release();
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}
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/***************************************************/
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/** Event management **/
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/***************************************************/
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// handle the connection of a new client on the server
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void onConnection ( TSockId from)
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{
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H_AUTO(L3S_onConnection);
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nlassert(_Routes.find(from) == _Routes.end());
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// Create a new route for this connection
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CL3ServerRoute* route = new CL3ServerRoute(this);
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route->SockId = from;
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// update the last event time
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route->LastCommTime = CTime::getSecondsSince1970();
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// store the route information
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_Routes.insert(make_pair(from, route));
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// callback the gateway
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_Gateway->onRouteAdded(route);
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}
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// handle the deconnection of a new client on the server
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void onDisconnection ( TSockId from)
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{
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H_AUTO(L3S_onDisconnection);
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TRouteMap::iterator it(_Routes.find(from));
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nlassert(it != _Routes.end());
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// callback the gateway that this route is no more
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_Gateway->onRouteRemoved(it->second);
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// delete the route
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CL3ServerRoute *route = it->second;
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_Routes.erase(it);
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delete route;
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}
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// Called to dispatch an incoming message to the gateway
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void onDispatchMessage(const CMessage &msgin, TSockId from, CCallbackNetBase &/* netbase */)
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{
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H_AUTO(L3S_onDispatchMessage);
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TRouteMap::iterator it(_Routes.find(from));
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nlassert(it != _Routes.end());
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// update the last event time
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it->second->LastCommTime = CTime::getSecondsSince1970();
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if (msgin.getName() == "KA")
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{
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// this is just a server prob, ignore it
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return;
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}
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_Gateway->onReceiveMessage(it->second, msgin);
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}
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/***************************************************/
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/** static callback forwarder **/
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/***************************************************/
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// Forwarder to the real method
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static void cbConnection ( TSockId from, void *arg )
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{
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nlassert(arg != NULL);
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CGatewayL3ServerTransport *transport = dynamic_cast<CGatewayL3ServerTransport *>(static_cast<IGatewayTransport*>(arg));
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nlassert(transport != NULL);
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transport->onConnection(from);
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}
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// Forwarder to the real method
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static void cbDisconnection ( TSockId from, void *arg )
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{
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nlassert(arg != NULL);
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CGatewayL3ServerTransport *transport = dynamic_cast<CGatewayL3ServerTransport *>(static_cast<IGatewayTransport*>(arg));
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nlassert(transport != NULL);
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transport->onDisconnection(from);
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}
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// Forward to the real method, do the dispatching to the correct CGatewayL3ServerTransport instance
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static void cbDispatchMessage (CMessage &msgin, TSockId from, CCallbackNetBase &netbase)
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{
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// retrieve the transport instance
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TDispatcherIndex::iterator it(_DispatcherIndex.find(&netbase));
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nlassert(it != _DispatcherIndex.end());
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// forward the call
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it->second->onDispatchMessage(msgin, from, netbase);
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}
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};
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CGatewayL3ServerTransport::TDispatcherIndex CGatewayL3ServerTransport::_DispatcherIndex;
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// register this class in the transport factory
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NLMISC_REGISTER_OBJECT(IGatewayTransport, CGatewayL3ServerTransport, std::string, string(LAYER3_SERVER_CLASS_NAME));
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void CL3ServerRoute::sendMessage(const CMessage &message) const
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{
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H_AUTO(L3SRoute_sendMessage);
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NLNET_AUTO_DELTE_ASSERT;
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CGatewayL3ServerTransport *trpt = static_cast<CGatewayL3ServerTransport*>(_Transport);
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// send the message
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trpt->_CallbackServer->send(message, SockId);
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// update the last time
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LastCommTime = CTime::getSecondsSince1970();
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}
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/////////////////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////////////////
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/// Layer 3 client transport
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/////////////////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////////////////
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class CL3ClientRoute : public CGatewayRoute
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{
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public:
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/// The server address for this route
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CInetAddress ServerAddr;
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/// The Client callback
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mutable CCallbackClient CallbackClient;
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/// Time stamp of last message received/emitted
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mutable uint32 LastCommTime;
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/// The last time we try to reconnect (in case of disconnection)
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uint32 LastConnectionRetry;
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// conn id
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uint32 ConnId;
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CL3ClientRoute(IGatewayTransport *transport, CInetAddress serverAddr,uint32 connId)
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: CGatewayRoute(transport),
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ServerAddr(serverAddr),
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LastCommTime(CTime::getSecondsSince1970()),
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LastConnectionRetry(0),
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ConnId(connId)
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{
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}
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void sendMessage(const CMessage &message) const
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{
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NLNET_AUTO_DELTE_ASSERT;
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H_AUTO(L3CRoute_sendMessage);
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if (CallbackClient.connected())
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{
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// update the last comme time
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LastCommTime = CTime::getSecondsSince1970();
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CallbackClient.send(message);
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}
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||
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}
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||
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};
|
||
|
|
||
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#define LAYER3_CLIENT_CLASS_NAME "L3Client"
|
||
|
|
||
|
/** Gateway transport using layer 3 client */
|
||
|
class CGatewayL3ClientTransport : public IGatewayTransport
|
||
|
{
|
||
|
friend class CL3ClientRoute;
|
||
|
public:
|
||
|
/// A static mapper to retrieve transport from the CCallbackServer pointer
|
||
|
typedef map<CCallbackNetBase*, CGatewayL3ClientTransport*> TDispatcherIndex;
|
||
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static TDispatcherIndex _DispatcherIndex;
|
||
|
|
||
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/// Storage for active connection
|
||
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typedef map<TSockId, CL3ClientRoute*> TClientRoutes;
|
||
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TClientRoutes _Routes;
|
||
|
|
||
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/// Indexed storage of active connection (used for stable connId)
|
||
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/// a NULL TSockeId mean a free connection slot.
|
||
|
typedef vector<TSockId> TClientRouteIds;
|
||
|
TClientRouteIds _RouteIds;
|
||
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/// A list of free slot ready for use
|
||
|
typedef vector<TClientRouteIds::difference_type> TFreeRouteIds;
|
||
|
TFreeRouteIds _FreeRoutesIds;
|
||
|
|
||
|
/// the route to delete outside of the update loop
|
||
|
list<CL3ClientRoute*> _RouteToRemove;
|
||
|
|
||
|
/// Retry interval for reconnection
|
||
|
uint32 _RetryInterval;
|
||
|
|
||
|
enum
|
||
|
{
|
||
|
/// Default time interval (in seconds) between to reconnection attempts
|
||
|
RETRY_INTERVAL = 5,
|
||
|
/// A minimum value in case or configuration error
|
||
|
MIN_RETRY_INTERVAL = 1,
|
||
|
};
|
||
|
|
||
|
/// Constructor
|
||
|
CGatewayL3ClientTransport(const IGatewayTransport::TCtorParam ¶m)
|
||
|
: IGatewayTransport(param),
|
||
|
_RetryInterval(RETRY_INTERVAL)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
~CGatewayL3ClientTransport()
|
||
|
{
|
||
|
deletePendingRoute();
|
||
|
|
||
|
// close all open connection
|
||
|
for (uint i=0; i<_RouteIds.size(); ++i)
|
||
|
{
|
||
|
if (_RouteIds[i] != NULL)
|
||
|
{
|
||
|
// close this open connection
|
||
|
close(i);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void deletePendingRoute()
|
||
|
{
|
||
|
H_AUTO(L3C_deletePendingRoute);
|
||
|
// delete any route pending
|
||
|
while (!_RouteToRemove.empty())
|
||
|
{
|
||
|
CL3ClientRoute *route = _RouteToRemove.front();
|
||
|
_DispatcherIndex.erase(&(route->CallbackClient));
|
||
|
_Routes.erase(route->CallbackClient.getSockId());
|
||
|
|
||
|
_RouteIds[route->ConnId] = NULL;
|
||
|
_FreeRoutesIds.push_back(route->ConnId);
|
||
|
delete route;
|
||
|
_RouteToRemove.pop_front();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
const std::string &getClassName() const
|
||
|
{
|
||
|
static string className(LAYER3_CLIENT_CLASS_NAME);
|
||
|
return className;
|
||
|
}
|
||
|
|
||
|
virtual void update()
|
||
|
{
|
||
|
H_AUTO(L3C_update);
|
||
|
// delete any route pending
|
||
|
deletePendingRoute();
|
||
|
|
||
|
uint32 now = CTime::getSecondsSince1970();
|
||
|
// update the client connection
|
||
|
TClientRoutes::iterator first(_Routes.begin()), last(_Routes.end());
|
||
|
for (; first != last; ++first)
|
||
|
{
|
||
|
CL3ClientRoute *route = first->second;
|
||
|
|
||
|
if (!route->CallbackClient.connected())
|
||
|
{
|
||
|
// this route is not connected, try a reconnect ?
|
||
|
if (route->LastConnectionRetry + _RetryInterval < now)
|
||
|
{
|
||
|
route->LastConnectionRetry = now;
|
||
|
try
|
||
|
{
|
||
|
nldebug("Connecting to %s...", route->ServerAddr.asString().c_str());
|
||
|
route->CallbackClient.connect(route->ServerAddr);
|
||
|
nldebug("Connected to %s", route->ServerAddr.asString().c_str());
|
||
|
_Gateway->onRouteAdded(route);
|
||
|
}
|
||
|
catch(...)
|
||
|
{
|
||
|
nlinfo("Server %s still not available for connection", route->ServerAddr.asString().c_str());
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
route->CallbackClient.update2(100, 0);
|
||
|
|
||
|
// check dead connection. For client, we use a little longer timer to
|
||
|
// avoid cross checking of client and server. If server is alive, then we receive
|
||
|
// the server keep alive packet a little before we need to send the client one, thus
|
||
|
// reseting the keep alive timer.
|
||
|
if (now - route->LastCommTime > (KEEP_ALIVE_DELAY+5))
|
||
|
{
|
||
|
nldebug("NETL6:L3Client: sending KeepAlive message");
|
||
|
|
||
|
// send a keep alive message
|
||
|
CMessage keepAlive("KA");
|
||
|
|
||
|
route->sendMessage(keepAlive);
|
||
|
}
|
||
|
|
||
|
// force a flush of the connection
|
||
|
route->CallbackClient.flush();
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
virtual uint32 getRouteCount() const
|
||
|
{
|
||
|
return (uint32)_Routes.size();
|
||
|
}
|
||
|
|
||
|
void dump(NLMISC::CLog &log) const
|
||
|
{
|
||
|
IModuleManager &mm = IModuleManager::getInstance();
|
||
|
log.displayNL(" NeL Net layer 3 transport, CLIENT mode");
|
||
|
|
||
|
log.displayNL(" There are actually %u active route :", _Routes.size());
|
||
|
|
||
|
TClientRoutes::const_iterator first(_Routes.begin()), last(_Routes.end());
|
||
|
for (; first != last; ++first)
|
||
|
{
|
||
|
CL3ClientRoute *route = first->second;
|
||
|
log.displayNL(" + route to '%s', %s, %u entries in the proxy translation table :",
|
||
|
route->ServerAddr.asString().c_str(),
|
||
|
route->CallbackClient.connected() ? "connected" : "NOT CONNECTED",
|
||
|
route->ForeignToLocalIdx.getAToBMap().size());
|
||
|
{
|
||
|
CGatewayRoute::TForeignToLocalIdx::TAToBMap::const_iterator first(route->ForeignToLocalIdx.getAToBMap().begin()), last(route->ForeignToLocalIdx.getAToBMap().end());
|
||
|
for (; first != last; ++first)
|
||
|
{
|
||
|
IModuleProxy *modProx = mm.getModuleProxy(first->second);
|
||
|
|
||
|
log.displayNL(" - Proxy '%s' : local proxy id %u => foreign module id %u",
|
||
|
modProx != NULL ? modProx->getModuleName().c_str() : "ERROR, invalid module",
|
||
|
first->second,
|
||
|
first->first);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
log.displayNL(" Dumping send buffer state");
|
||
|
route->CallbackClient.displaySendQueueStat(&log);
|
||
|
log.displayNL(" Dumping receive buffer state");
|
||
|
route->CallbackClient.displayReceiveQueueStat(&log);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void onCommand(const CMessage &/* command */) throw (EInvalidCommand)
|
||
|
{
|
||
|
// nothing done for now
|
||
|
throw EInvalidCommand();
|
||
|
}
|
||
|
/// The gateway send a textual command to the transport
|
||
|
bool onCommand(const TParsedCommandLine &command) throw (EInvalidCommand)
|
||
|
{
|
||
|
if (command.SubParams.size() < 1)
|
||
|
throw EInvalidCommand();
|
||
|
|
||
|
const std::string &commandName = command.SubParams[0]->ParamName;
|
||
|
if (commandName == "connect")
|
||
|
{
|
||
|
const TParsedCommandLine *addrParam = command.getParam("addr");
|
||
|
if (addrParam == NULL)
|
||
|
throw EInvalidCommand();
|
||
|
|
||
|
CInetAddress addr(addrParam->ParamValue);
|
||
|
|
||
|
connect(addr);
|
||
|
}
|
||
|
else if (commandName == "close")
|
||
|
{
|
||
|
const TParsedCommandLine *conIdParam= command.getParam("connId");
|
||
|
if (conIdParam == NULL)
|
||
|
throw EInvalidCommand();
|
||
|
|
||
|
uint32 connId;
|
||
|
fromString(conIdParam->ParamValue, connId);
|
||
|
|
||
|
close(connId);
|
||
|
}
|
||
|
else if (commandName == "retryInterval")
|
||
|
{
|
||
|
uint32 interval;
|
||
|
fromString(command.SubParams[0]->ParamValue, interval);
|
||
|
_RetryInterval = std::max(uint32(MIN_RETRY_INTERVAL), interval);
|
||
|
|
||
|
nldebug("CGatewayL3ClientTransport : setting retry interval to %u", _RetryInterval);
|
||
|
}
|
||
|
else
|
||
|
return false;
|
||
|
|
||
|
return true;
|
||
|
|
||
|
}
|
||
|
|
||
|
/// connect to a server
|
||
|
void connect(CInetAddress &addr)
|
||
|
{
|
||
|
H_AUTO(L3C_connect);
|
||
|
uint32 connId;
|
||
|
|
||
|
// affect a connection id
|
||
|
if (_FreeRoutesIds.empty())
|
||
|
{
|
||
|
connId = (uint32)_RouteIds.size();
|
||
|
_RouteIds.push_back(InvalidSockId);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
connId = (uint32)_FreeRoutesIds.back();
|
||
|
_FreeRoutesIds.pop_back();
|
||
|
}
|
||
|
|
||
|
auto_ptr<CL3ClientRoute> route = auto_ptr<CL3ClientRoute>(new CL3ClientRoute(this, addr, connId));
|
||
|
|
||
|
// set the callbacks
|
||
|
route->CallbackClient.setDisconnectionCallback(cbDisconnection, static_cast<IGatewayTransport*>(this));
|
||
|
route->CallbackClient.setDefaultCallback(cbDispatchMessage);
|
||
|
|
||
|
try
|
||
|
{
|
||
|
nldebug("CGatewayL3ClientTransport : Connecting to %s...", addr.asString().c_str());
|
||
|
route->LastConnectionRetry = CTime::getSecondsSince1970();
|
||
|
// connect to the server
|
||
|
route->CallbackClient.connect(addr);
|
||
|
nldebug("CGatewayL3ClientTransport : Connected to %s with connId %u", addr.asString().c_str(), connId);
|
||
|
}
|
||
|
catch (const ESocketConnectionFailed &)
|
||
|
{
|
||
|
nlinfo("CGatewayL3ClientTransport : Failed to connect to server %s, retrying in %u seconds", addr.asString().c_str(), _RetryInterval);
|
||
|
}
|
||
|
|
||
|
// store the route
|
||
|
_Routes.insert(make_pair(route->CallbackClient.getSockId(), route.get()));
|
||
|
_RouteIds[connId] = route->CallbackClient.getSockId();
|
||
|
|
||
|
// register it in the dispatcher
|
||
|
_DispatcherIndex.insert(make_pair(&route->CallbackClient, this));
|
||
|
|
||
|
// release the auto ptr
|
||
|
CL3ClientRoute *rt = route.release();
|
||
|
|
||
|
// callback the gateway about the new route
|
||
|
if (rt->CallbackClient.connected())
|
||
|
_Gateway->onRouteAdded(rt);
|
||
|
}
|
||
|
|
||
|
// handle the connection of a new client on the server
|
||
|
void close ( uint32 connId)
|
||
|
{
|
||
|
H_AUTO(L3C_close);
|
||
|
// some basic checks on connId
|
||
|
if (connId >= _RouteIds.size())
|
||
|
{
|
||
|
nlwarning("CGatewayL3ClientTransport : Invalid connectionId %u, max is %u", connId, _RouteIds.size()-1);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
if (_RouteIds[connId] == NULL)
|
||
|
{
|
||
|
nlwarning("CGatewayL3ClientTransport : Invalid connectionId %u, the connection is unused now.", connId);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
|
||
|
deletePendingRoute();
|
||
|
|
||
|
// retrieve the connection to close
|
||
|
TClientRoutes::iterator it(_Routes.find(_RouteIds[connId]));
|
||
|
nlassert(it != _Routes.end());
|
||
|
|
||
|
CL3ClientRoute *route = it->second;
|
||
|
|
||
|
nldebug("CGatewayL3ClientTransport : Closing connection %u to %s", connId, route->ServerAddr.asString().c_str());
|
||
|
|
||
|
|
||
|
if (route->CallbackClient.connected())
|
||
|
{
|
||
|
// callback gateway
|
||
|
_Gateway->onRouteRemoved(route);
|
||
|
|
||
|
// close the connection
|
||
|
route->CallbackClient.disconnect();
|
||
|
}
|
||
|
|
||
|
// cleanup memory, index ...
|
||
|
_DispatcherIndex.erase(&(route->CallbackClient));
|
||
|
_Routes.erase(it);
|
||
|
delete route;
|
||
|
_RouteIds[connId] = NULL;
|
||
|
_FreeRoutesIds.push_back(connId);
|
||
|
}
|
||
|
|
||
|
/***************************************************/
|
||
|
/** Event management **/
|
||
|
/***************************************************/
|
||
|
|
||
|
// handle the deconnection of a the client from the server
|
||
|
void onDisconnection ( TSockId from)
|
||
|
{
|
||
|
H_AUTO(L3C_onDisconnection);
|
||
|
// nothing to do, as route as kept persistent and try to reconnect
|
||
|
|
||
|
TClientRoutes::iterator it(_Routes.find(from));
|
||
|
nlassert(it != _Routes.end());
|
||
|
|
||
|
nldebug("CGatewayL3ClientTransport : Disconnection from %s", it->second->ServerAddr.asString().c_str());
|
||
|
|
||
|
|
||
|
// callback the gateway that this route is no more
|
||
|
_Gateway->onRouteRemoved(it->second);
|
||
|
|
||
|
// update the last connection try to 'now'
|
||
|
it->second->LastConnectionRetry = CTime::getSecondsSince1970();
|
||
|
|
||
|
// // delete the route
|
||
|
// CL3ClientRoute *route = it->second;
|
||
|
//
|
||
|
// _RouteToRemove.push_back(route);
|
||
|
}
|
||
|
|
||
|
// Called to dispatch an incoming message to the gateway
|
||
|
void onDispatchMessage(const CMessage &msgin, TSockId from, CCallbackNetBase &/* netbase */)
|
||
|
{
|
||
|
H_AUTO(L3C_onDispatchMessage);
|
||
|
TClientRoutes::iterator it(_Routes.find(from));
|
||
|
nlassert(it != _Routes.end());
|
||
|
|
||
|
// update last comm time
|
||
|
it->second->LastCommTime = CTime::getSecondsSince1970();
|
||
|
|
||
|
if (msgin.getName() == "KA")
|
||
|
{
|
||
|
// this is just a server prob, ignore it
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
_Gateway->onReceiveMessage(it->second, msgin);
|
||
|
}
|
||
|
|
||
|
|
||
|
/***************************************************/
|
||
|
/** static callback forwarder **/
|
||
|
/***************************************************/
|
||
|
|
||
|
// Forwarder to the real method
|
||
|
static void cbDisconnection ( TSockId from, void *arg )
|
||
|
{
|
||
|
nlassert(arg != NULL);
|
||
|
CGatewayL3ClientTransport *transport = dynamic_cast<CGatewayL3ClientTransport *>(static_cast<IGatewayTransport*>(arg));
|
||
|
nlassert(transport != NULL);
|
||
|
|
||
|
transport->onDisconnection(from);
|
||
|
}
|
||
|
|
||
|
// Forward to the real method, do the dispatching to the correct CGatewayL3ServerTransport instance
|
||
|
static void cbDispatchMessage (CMessage &msgin, TSockId from, CCallbackNetBase &netbase)
|
||
|
{
|
||
|
// retrieve the transport instance
|
||
|
TDispatcherIndex::iterator it(_DispatcherIndex.find(&netbase));
|
||
|
nlassert(it != _DispatcherIndex.end());
|
||
|
|
||
|
// forward the call
|
||
|
it->second->onDispatchMessage(msgin, from, netbase);
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
CGatewayL3ClientTransport::TDispatcherIndex CGatewayL3ClientTransport::_DispatcherIndex;
|
||
|
|
||
|
// register this class in the transport factory
|
||
|
NLMISC_REGISTER_OBJECT(IGatewayTransport, CGatewayL3ClientTransport, std::string, string(LAYER3_CLIENT_CLASS_NAME));
|
||
|
|
||
|
|
||
|
void forceGatewayTransportLink()
|
||
|
{
|
||
|
}
|
||
|
|
||
|
} // namespace NLNET
|