From ba066c34dde204aa192d03a23a81356374d93731 Mon Sep 17 00:00:00 2001
From: chatty
Date: Wed, 7 Apr 1993 11:50:31 +0000
Subject: Initial revision

---
 comm/OLD/dgram.h | 102 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 comm/OLD/dgram.h

(limited to 'comm/OLD/dgram.h')

diff --git a/comm/OLD/dgram.h b/comm/OLD/dgram.h
new file mode 100644
index 0000000..143687e
--- /dev/null
+++ b/comm/OLD/dgram.h
@@ -0,0 +1,102 @@
+/*
+ *	The Unix Channel
+ *
+ *	by Michel Beaudouin-Lafon
+ *
+ *	Copyright 1990-1993
+ *	Laboratoire de Recherche en Informatique (LRI)
+ *
+ *	Reliable datagrams - to be updated
+ *
+ *	$Id$
+ *	$CurLog$
+ */
+
+#ifndef _DGRAM_H_
+#define _DGRAM_H_
+
+#include "global.h"
+#include "Datagram.h"
+#include "ccu/IdTable.h"
+#include "ccu/List.h"
+#include "ccu/Timer.h"
+
+class UchDGRAM;
+class UchMessage;
+
+class UchDGRAM_TIMER : public CcuBaseTimer {
+protected:
+	UchDGRAM&	dgram;
+	void	Handle (Millisecond);
+
+public:
+		UchDGRAM_TIMER (UchDGRAM&);
+		~UchDGRAM_TIMER ();
+};
+
+class UchDGRAM : public UchDatagram {
+protected:
+	CcuIdTable	pending;		// pending messages
+	sword		npending;	// number of pending messages
+	short		retry;		// retry times
+	CcuList		input;		// input messages
+	sword		ninput;		// number of input messages
+	pUchAddress	fromAddr;	// address of last acknowledged message
+	lword		outId;		// id of message sent
+	UchDGRAM_TIMER	timer;		// timer to resend
+	Millisecond	timeout;		// timeout for timer
+	short		locked;
+	bool		resend;
+	bool		sync;
+	
+	void		Init ();
+	int		GetInput (int);
+	bool		CheckInput ();
+	bool		WaitInput ();
+	
+	void		SendAck (lword, UchAddress&);
+	void		Expired ();
+	UchMsgBuffer*	PrepareToSend (UchAddress&, int retries);
+	int		SendBuffer (UchMsgBuffer&, UchAddress&);
+	void		RemovePending (lword);
+	bool		Wait (lword);
+	void		Lock ()		{ locked++; }
+	void		Unlock ()	{ if (--locked == 0 && resend) Resend (); }
+
+public:
+		UchDGRAM ();
+		UchDGRAM (UchAddress*, UchAddress*);
+		~UchDGRAM ();
+	
+	int	Send (byte*, int, UchAddress&, bool = FALSE, int retries = 0);
+	int	Receive (byte*, int);
+	int	Reply (byte*, int, bool = FALSE, int retries = 0);
+	
+	int	Send (UchMsgBuffer&, UchAddress&, bool = FALSE, bool = FALSE, int retries = 0);
+	int	Receive (UchMsgBuffer&);
+	int	Reply (UchMsgBuffer&, bool = FALSE, bool = FALSE, int retries = 0);
+	
+	bool	Send (UchMessage&, UchAddress&, bool = FALSE, int retries = 0);
+	bool	Receive (UchMessage* msg);
+	bool	Reply (UchMessage&, bool = FALSE, int retries = 0);
+	
+virtual	bool	DiscardNotify (UchMsgBuffer&, UchAddress&);
+	
+	int	NumPending ()		{ return npending; }
+	int	NumInput ()		{ return ninput; }
+	void	SetRetry (short r)		{ retry = r; }
+	void	SetRetryTime (Millisecond);
+	void	SetSync (bool s)		{ sync = s; if (s) Drain (); }
+	
+	void	Resend ();
+	void	Drain ();
+	
+virtual	bool	NewMessage (UchMsgBuffer&);
+	void	HandleRead ();
+	bool	HandleSelect ();
+	
+friend	class	UchDGRAM_TIMER;
+};
+
+#endif /* _DGRAM_H_ */
+
-- 
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