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140 lines
3.5 KiB
C++
140 lines
3.5 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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#ifndef NL_RECEIVE_TASK_H
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#define NL_RECEIVE_TASK_H
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#include "nel/misc/types_nl.h"
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#include "nel/misc/debug.h"
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#include "nel/misc/thread.h"
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#include "nel/misc/buf_fifo.h"
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#include "nel/misc/mutex.h"
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#include "nel/net/udp_sock.h"
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#include <vector>
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const uint32 MsgHeaderSize = 1+8; // 8 for the date
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/**
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* Placeholder for received messages
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*/
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struct TReceivedMessage
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{
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/// Type of incoming events (see also NLNET::CBufNetBase::TEventType)
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enum TEventType { User = 'U', RemoveClient = 'D' };
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/// Constructor
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TReceivedMessage();
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/// Resize data
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void resizeData( uint32 datasize ) { _Data.resize( MsgHeaderSize + datasize ); }
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/// Return a vector containing the address info
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void addressToVector();
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/// Set address with address info from specified vector
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void vectorToAddress();
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/// Set "disconnection" message for the current AddrFrom
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void setTypeEvent( TEventType t ) { *_Data.begin() = (uint8)t; }
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void setDate() { *(sint64*)&(*(_Data.begin()+1)) = NLMISC::CTime::getLocalTime(); }
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sint64 getDate() { return *(sint64*)&(*(_Data.begin()+1)); }
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/// Return the event type
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TEventType eventType() const { return (TEventType)(*_Data.begin()); }
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/// Return a pointer to user data for writing
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uint8 *userDataW() { return &*_Data.begin() + MsgHeaderSize; }
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/// Return a pointer to user data for reading
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const uint8 *userDataR() const { return &*_Data.begin() + MsgHeaderSize; }
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/// Return the size of user data
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uint32 userSize() { return (uint32)_Data.size() - MsgHeaderSize; }
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/// Return the data vector (event type header byte + user data)
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std::vector<uint8>& data() { return _Data; }
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private:
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/// One byte for event type (header), followed by user data
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std::vector<uint8> _Data;
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public:
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/// Address of sender as CInetAddress
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NLNET::CInetAddress AddrFrom;
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/// Placeholder vector for address info
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std::vector<uint8> VAddrFrom;
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};
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/**
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* receive task
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* \author Olivier Cado
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* \author Nevrax France
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* \date 2001
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*/
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class CReceiveTask : public NLMISC::IRunnable
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{
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public:
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/// Constructor
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CReceiveTask( uint16 port, uint32 msgsize );
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/// Destructor
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~CReceiveTask();
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/// Run
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virtual void run();
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/// Set new write queue
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void setWriteQueue( NLMISC::CBufFIFO *writequeue );
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/// Require exit
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void requireExit() { _ExitRequired = true; }
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private:
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/// Datagram length
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uint _DatagramLength;
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/// Received message
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TReceivedMessage _ReceivedMessage;
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/// Write queue access
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NLMISC::CSynchronized<NLMISC::CBufFIFO*> _WriteQueue;
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/// Exit required
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volatile bool _ExitRequired;
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public:
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/// External datagram socket
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NLNET::CUdpSock *DataSock;
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};
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#endif // NL_RECEIVE_TASK_H
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/* End of receive_task.h */
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