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382 lines
8.8 KiB
C++
382 lines
8.8 KiB
C++
// 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/net/callback_server.h"
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#include "nel/net/net_log.h"
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#ifdef USE_MESSAGE_RECORDER
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#include "nel/net/dummy_tcp_sock.h"
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#endif
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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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* Connection callback (the disconnection callback is in callback_net_base.cpp
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*/
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void cbsNewConnection (TSockId from, void *data)
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{
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nlassert (data != NULL);
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CCallbackServer *server = (CCallbackServer *)data;
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LNETL3_DEBUG("LNETL3S: newConnection()");
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#ifdef USE_MESSAGE_RECORDER
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// Record connection
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server->noticeConnection( from );
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#endif
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// send all my association to the new client
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// association are disactivated so we don t need to send them
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// server->sendAllMyAssociations (from);
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// call the client callback if necessary
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if (server->_ConnectionCallback != NULL)
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server->_ConnectionCallback (from, server->_ConnectionCbArg);
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}
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/*
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* Constructor
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*/
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CCallbackServer::CCallbackServer( TRecordingState rec, const string& recfilename, bool recordall, bool initPipeForDataAvailable ) :
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CCallbackNetBase( rec, recfilename, recordall ),
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CBufServer( DEFAULT_STRATEGY, DEFAULT_MAX_THREADS, DEFAULT_MAX_SOCKETS_PER_THREADS, true, rec==Replay, initPipeForDataAvailable ),
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_ConnectionCallback(NULL),
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_ConnectionCbArg(NULL)
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{
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#ifndef USE_MESSAGE_RECORDER
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nlassertex( rec==Off, ("LNETL3S: The message recorder is disabled at compilation time ; switch the recording state Off") );
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#endif
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CBufServer::setDisconnectionCallback (_NewDisconnectionCallback, this);
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CBufServer::setConnectionCallback (cbsNewConnection, this);
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_IsAServer = true;
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_DefaultCallback = NULL;
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}
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/*
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* Send a message to the specified host (pushing to its send queue)
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* Recorded : YES
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* Replayed : MAYBE
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*/
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void CCallbackServer::send (const CMessage &buffer, TSockId hostid, bool /* log */)
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{
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nlassert (connected ());
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nlassert (buffer.length() != 0);
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nlassert (buffer.typeIsSet());
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if (hostid == InvalidSockId)
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{
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// broadcast
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sint nb = nbConnections ();
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_BytesSent += buffer.length () * nb;
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}
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else
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{
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_BytesSent += buffer.length ();
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}
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// if (log)
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{
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// LNETL3_DEBUG ("LNETL3S: Server: send(%s, %s)", buffer.toString().c_str(), hostid->asString().c_str());
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}
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#ifdef USE_MESSAGE_RECORDER
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if ( _MR_RecordingState != Replay )
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{
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#endif
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// Send
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CBufServer::send (buffer, hostid);
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#ifdef USE_MESSAGE_RECORDER
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if ( _MR_RecordingState == Record )
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{
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// Record sent message
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_MR_Recorder.recordNext( _MR_UpdateCounter, Sending, hostid, const_cast<CMessage&>(buffer) );
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}
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}
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#endif
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}
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/*
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* Updates the network (call this method evenly)
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* Recorded : YES (in baseUpdate())
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* Replayed : YES (in baseUpdate())
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*/
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void CCallbackServer::update2 ( sint32 timeout, sint32 mintime )
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{
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H_AUTO(L3UpdateServer);
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nlassert (connected ());
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// LNETL3_DEBUG ("LNETL3S: Client: update()");
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baseUpdate2 ( timeout, mintime ); // first receive
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#ifdef USE_MESSAGE_RECORDER
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if ( _MR_RecordingState != Replay )
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{
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#endif
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// L1-2 Update (nothing to do in replay mode)
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CBufServer::update (); // then send
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#ifdef USE_MESSAGE_RECORDER
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}
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#endif
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}
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/*
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* Updates the network (call this method evenly) (legacy)
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* Recorded : YES (in baseUpdate())
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* Replayed : YES (in baseUpdate())
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*/
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void CCallbackServer::update ( sint32 timeout )
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{
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H_AUTO(L3UpdateServer);
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nlassert (connected ());
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// LNETL3_DEBUG ("LNETL3S: Client: update()");
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baseUpdate ( timeout ); // first receive
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#ifdef USE_MESSAGE_RECORDER
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if ( _MR_RecordingState != Replay )
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{
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#endif
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// L1-2 Update (nothing to do in replay mode)
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CBufServer::update (); // then send
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#ifdef USE_MESSAGE_RECORDER
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}
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#endif
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}
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/*
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* Read the next message in the receive queue
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* Recorded : YES
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* Replayed : YES
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*/
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void CCallbackServer::receive (CMessage &buffer, TSockId *hostid)
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{
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nlassert (connected ());
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#ifdef USE_MESSAGE_RECORDER
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if ( _MR_RecordingState != Replay )
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{
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#endif
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// Receive
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CBufServer::receive (buffer, hostid);
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#ifdef USE_MESSAGE_RECORDER
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if ( _MR_RecordingState == Record )
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{
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// Record received message
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_MR_Recorder.recordNext( _MR_UpdateCounter, Receiving, *hostid, const_cast<CMessage&>(buffer) );
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}
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}
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else
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{
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// Retrieve received message loaded by dataAvailable()
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buffer = _MR_Recorder.ReceivedMessages.front().Message;
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*hostid = _MR_Recorder.ReceivedMessages.front().SockId;
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_MR_Recorder.ReceivedMessages.pop();
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}
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#endif
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buffer.readType ();
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}
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/*
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* Disconnect a connection
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* Set hostid to InvalidSockId to disconnect all connections.
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* If hostid is not null and the socket is not connected, the method does nothing.
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* Before disconnecting, any pending data is actually sent.
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* Recorded : YES in noticeDisconnection called in the disconnection callback
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* Replayed : YES in noticeDisconnection called in the disconnection callback
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*/
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void CCallbackServer::disconnect( TSockId hostid )
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{
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#ifdef USE_MESSAGE_RECORDER
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if ( _MR_RecordingState != Replay )
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{
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#endif
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// Disconnect
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CBufServer::disconnect( hostid );
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#ifdef USE_MESSAGE_RECORDER
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}
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// else, no need to manually replay the disconnection, such as in CCallbackClient,
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// it will be replayed during the next update()
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#endif
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}
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/*
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*
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*/
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TSockId CCallbackServer::getSockId (TSockId hostid)
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{
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nlassert (hostid != InvalidSockId); // invalid hostid
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nlassert (connected ());
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nlassert (hostid != NULL);
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return hostid;
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}
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/*
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* Returns true if there are messages to read
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* Recorded : NO
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* Replayed : YES
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*/
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bool CCallbackServer::dataAvailable ()
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{
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#ifdef USE_MESSAGE_RECORDER
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if ( _MR_RecordingState != Replay )
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{
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#endif
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// Real dataAvailable()
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return CBufServer::dataAvailable ();
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#ifdef USE_MESSAGE_RECORDER
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}
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else
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{
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// Simulated dataAvailable()
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return CCallbackNetBase::replayDataAvailable();
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}
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#endif
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}
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//-------------------------
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#ifdef USE_MESSAGE_RECORDER
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/*
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* Replay connection and disconnection callbacks, client version
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*/
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bool CCallbackServer::replaySystemCallbacks()
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{
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do
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{
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if ( _MR_Recorder.ReceivedMessages.empty() )
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{
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return false;
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}
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else
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{
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// Translate the stored sockid to the replayed sockid
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TSockId sockid;
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std::map<TSockId,TSockId>::iterator isi = _MR_SockIds.find( _MR_Recorder.ReceivedMessages.front().SockId );
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if ( isi != _MR_SockIds.end() )
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{
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// The sockid is found in the map if the connection already exists
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sockid = (*isi).second;
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_MR_Recorder.ReceivedMessages.front().SockId = sockid;
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}
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// Test event type
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switch( _MR_Recorder.ReceivedMessages.front().Event )
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{
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case Receiving:
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return true;
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case Disconnecting:
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LNETL3_DEBUG( "LNETL3S: Disconnection event for %p", sockid );
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sockid->Sock->disconnect();
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sockid->setConnectedState( false );
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// Call callback if needed
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if ( disconnectionCallback() != NULL )
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{
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disconnectionCallback()( sockid, argOfDisconnectionCallback() );
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}
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break;
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case Accepting:
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{
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// Replay connection:
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// Get remote address
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CInetAddress addr;
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_MR_Recorder.ReceivedMessages.front().Message.serial( addr );
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// Create a new connection
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sockid = new CBufSock( new CDummyTcpSock() );
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sockid->Sock->connect( addr );
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_MR_Connections.push_back( sockid );
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// Bind it to the "old" sockid
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_MR_SockIds.insert( make_pair( _MR_Recorder.ReceivedMessages.front().SockId, sockid ) );
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LNETL3_DEBUG( "LNETL3S: Connection event for %p", sockid );
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sockid->setConnectedState( true );
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// Call callback if needed
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if ( connectionCallback() != NULL )
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{
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connectionCallback()( sockid, argOfConnectionCallback() );
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}
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break;
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}
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default:
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nlerror( "LNETL3S: Invalid system event type in client receive queue" );
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}
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// Extract system event
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_MR_Recorder.ReceivedMessages.pop();
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}
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}
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while ( true );
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}
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/*
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* Record or replay connection
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*/
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void CCallbackServer::noticeConnection( TSockId hostid )
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{
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nlassert (hostid != InvalidSockId); // invalid hostid
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if ( _MR_RecordingState != Replay )
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{
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if ( _MR_RecordingState == Record )
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{
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// Record connection
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CMessage addrmsg;
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addrmsg.serial( const_cast<CInetAddress&>(hostAddress(hostid)) );
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_MR_Recorder.recordNext( _MR_UpdateCounter, Accepting, hostid, addrmsg );
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}
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}
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}
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#endif // USE_MESSAGE_RECORDER
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} // NLNET
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