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/*
 *	The Unix Channel
 *
 *	by Michel Beaudouin-Lafon
 *
 *	Copyright 1990-1993
 *	Laboratoire de Recherche en Informatique (LRI)
 *
 *	Agents, by Stephane Chatty
 *
 *	$Id$
 *	$CurLog$
 */

#ifndef Agent_H_
#define Agent_H_

#include "ccu/List.h"
#include "MsgStream.h"
#include "Multiplexer.h"
#include "error.h"

class UchRemoteAgent;

class UchAgent : public UchStream {
friend	class	UchRemoteAgent;

protected:
#ifndef CPLUS_BUG19
	CcuListOf <UchRemoteAgent>	RemoteAgents;
#else
	CcuList	RemoteAgents;
#endif
	pUchBaseMultiplexer	Mpx;

	void		HandleRead ();

public:
		UchAgent ();
		UchAgent (const UchAgent&);
		UchAgent (UchAddress*);
		~UchAgent ();
	
	UchChannel*	Copy () const;
	
	bool		Setup (UchBaseMultiplexer* cs = 0);
inline	UchBaseMultiplexer*	GetMultiplexer ()			{ return Mpx; }

	UchRemoteAgent*	Contact (UchAddress*);
	void		RemoveRemoteAgent (UchRemoteAgent*);
	MPX_RES		Run ();
	void		Unlisten ();

	void		Broadcast (UchMessage&, bool = false);
	void		Broadcast (UchMessage&, UchRemoteAgent*, bool = false);
	void		Broadcast (UchMsgBuffer&, bool = false);
	void		Broadcast (UchMsgBuffer&, UchRemoteAgent*, bool = false);

virtual	UchRemoteAgent*		CreateRemote (int);
virtual	void		HandleRemove (UchRemoteAgent*);
virtual	bool		SysError (errtype, const char*, int = 0, int = 0);
virtual	void		Error (errtype, const char*, const char*);
};


class UchRemoteAgent : public UchMsgStream {
friend	class	UchAgent;

protected:
	UchAgent	*MyLocalAgent;

public:
		UchRemoteAgent (UchAgent*);
		UchRemoteAgent (const UchRemoteAgent& cl);
		UchRemoteAgent (UchAgent*, UchAddress*);
		UchRemoteAgent (UchAgent*, int);
		~UchRemoteAgent ();
	
	UchChannel*	Copy () const;
	void		Delete ();
	
inline	UchAgent*		GetLocalContact ()	{ return MyLocalAgent; }
};


#endif /* Agent_H_ */