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2023-08-07 19:29:24 +08:00
commit 34d6c5d489
4832 changed files with 1389451 additions and 0 deletions
--- a/CryNetwork/CTPEndpoint.h
+++ b/CryNetwork/CTPEndpoint.h
@@ -0,0 +1,150 @@
+//////////////////////////////////////////////////////////////////////
+//
+//	Crytek Network source code
+//	
+//	File: CTPEndpoint.cpp
+//  Description: 
+//
+//	History:
+//	-July 25,2001:Created by Alberto Demichelis
+//
+//////////////////////////////////////////////////////////////////////
+
+
+#if !defined(AFX_CTPENDPOINT_H__F28737F3_12B9_4394_B63C_7FC8CFFF3033__INCLUDED_)
+#define AFX_CTPENDPOINT_H__F28737F3_12B9_4394_B63C_7FC8CFFF3033__INCLUDED_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+
+#include <queue>
+
+#define MODULO32(a) ((a)&0x1f)
+#define MAX_SEQ_NUM 7
+#define NUM_OF_BUFS ((MAX_SEQ_NUM+1)/2)
+#define INC(a) (a)=MODULO32((++a))
+
+#define MAX_QUEUED_PACKET_PER_CHANNEL 24
+
+//<<FIXME>> buffer timeout...replace with a ping adaptive algorithm
+#define TM_BUFFER 300
+#define TM_ACK	TM_BUFFER/5
+#define MAX_PLAYLOAD_SIZE_IN_BITS 1024*8
+
+#include "Stream.h"
+#include "CNP.h"
+#include "Interfaces.h"
+#include "PingCalculator.h"
+
+typedef std::queue<CStream> STREAM_QUEUE;
+
+typedef struct tagBuffer{
+	CStream stmData;
+	DWORD dwTimeout;
+	LONG nSeq;//only for retrasmission
+}Buffer;
+
+
+/*! Implements a CTP endpoint
+*/
+class CCTPEndpoint  
+{
+public:
+	CCTPEndpoint();
+	virtual ~CCTPEndpoint();
+public:
+	void Reset();
+	void Init(_IEndpointUser *pParent,bool bSecondary){m_pParent=pParent;m_bSecondary=bSecondary;}
+	bool SendUnreliable(CStream &stmData);
+	bool SendReliable(CStream &stmData);
+	void Update(unsigned int nTime,unsigned char cFrameType = 0,CStream *pStm=NULL);
+	void SetRate(unsigned int nBytePerSec);
+	void Dump();
+	unsigned int GetRemoteTimestamp(unsigned int nTime){
+		return m_LatencyCalculator.GetCurrentRemoteTimestamp(nTime);
+	}
+	//
+	unsigned int GetPing();
+	unsigned int GetLostPackets(){return m_nLostPackets;}
+	// Changes crypt key specifically for this connection.
+	void SetPublicCryptKey( unsigned int key );
+protected:
+	virtual void BuildOutgoingFrame()=0;
+	virtual bool IsTimeToSend()=0;
+
+	void ProcessBufferTimers();
+	void ProcessAckTimer();
+	void HandleAckTimeout();
+	void HandleDataFrame(CTPData &f);
+	void HandleNak(CTPNak &f);
+	void HandleTimeout(LONG nOldestFrame);
+	void SendFrame(LONG nType,LONG nFrameNum,LONG nFrameExpected,CStream *pUnreliable = NULL,bool bUnreliable=false);
+	void StopTimer(LONG nIndex);
+	void SetTimer(LONG nIndex);
+	void StopAckTimer();
+	void SetAckTimer();
+
+	void CryptStream( CStream &stm );
+	void UncyptStream( CStream &stm );
+
+//	CStream CompressStream(CStream &stm);
+//	CStream UncompressStream(CStream &stm);
+
+	// ............................................................
+
+	bool									m_nArrived[NUM_OF_BUFS];
+	LONG									m_nFrameExpected;
+	LONG									m_nNextFrameToSend;
+	LONG									m_nTooFar;
+	LONG									m_nAckExpected;
+	bool									m_bNoNak;											//!< only one nak per frame
+	LONG									m_nBuffered;									//!< number of output buffers currently used
+	CStream								m_stmInBuffers[NUM_OF_BUFS];
+	Buffer								m_OutBuffers[NUM_OF_BUFS];
+	LONG									m_nOldestFrame;
+//TIMERS=0 mean disabled
+	//DWORD m_dwTimers[NUM_OF_BUFS]; //expected ack timers
+	DWORD									m_dwOutAckTimer;							//!< outgoing ack timer
+	STREAM_QUEUE					m_qOutgoingReliableData;
+	STREAM_QUEUE					m_qOutgoingUnreliableData;
+
+	_IEndpointUser *			m_pParent;
+
+	bool									m_bSecondary;
+	class CPingCalculator m_LatencyCalculator;					//!< Ping calculation stuff
+	DWORD									m_nLostPackets;
+	DWORD									m_dwPingTime;									//!< store the timestamp of the latest pong request
+	//<<FIXME>> implement the rate control
+	unsigned int					m_nRate; 
+	float									m_fBytePerMillisec;						//!< only used when RATE_CONTROL is defined
+	int									m_nAllowedBytes;
+	unsigned int					m_nLastPacketSent;
+protected:
+	unsigned int					m_nSnaps;
+	unsigned int					m_nCurrentTime;
+	// Encryption key used in Transfer protocol.
+	unsigned int					m_nEncryptKey[4];
+};
+
+class CCTPClient :public CCTPEndpoint
+{
+protected:
+//	virtual void BuildOutgoingFrame();
+	virtual bool IsTimeToSend();
+};
+
+class CCTPServer :public CCTPEndpoint
+{
+public:
+	CCTPServer()
+	{
+	}
+protected:
+	
+//	virtual void BuildOutgoingFrame();
+	virtual bool IsTimeToSend();
+
+};
+
+#endif // !defined(AFX_CTPENDPOINT_H__F28737F3_12B9_4394_B63C_7FC8CFFF3033__INCLUDED_)