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/*
* The Unix Channel
*
* by Michel Beaudouin-Lafon
*
* Copyright 1990-1997
* Laboratoire de Recherche en Informatique (LRI)
*
* Message streams
*
* $Id$
* $CurLog$
*/
#ifndef MsgStream_H_
#define MsgStream_H_
#include "BufStream.h"
class UchMessage;
class UchMsgStream : public UchBufStream {
protected:
enum STATE { WAITING, GOT_TYPE, GOT_LENGTH, DONE};
enum TYPE { MSG = 1, ASK, ANS, SYNC, ASYNC, OK };
STATE State;
bool BufferedMessages;
UchMsgBuffer Buffered;
bool WaitingReply;
int InLength;
byte InType;
UchMessage* Process (UchMsgBuffer&, bool);
UchMsgStream (const UchMsgStream&);
void WriteMsg (UchMessage&);
bool ReadMsg (UchMessage&);
public:
UchMsgStream (UchAddress* = 0, UchAddress* = 0);
~UchMsgStream ();
void HandleRead ();
virtual UchMessage* DecodeMessage (UchMsgBuffer&);
virtual UchMessage* DecodeAnswer (UchMsgBuffer&);
void Send (UchMessage&, bool = false);
UchMessage* Ask (UchMessage&);
void Reply (UchMessage&);
void Send (UchMsgBuffer&, bool = false);
};
#endif /* MsgStream_H_ */
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