/*                                                W3C Sample Code Library libwww MUX Protocol
                                     THE MUX PROTOCOL
                                             
 */
/*
**      (c) COPYRIGHT MIT 1995.
**      Please first read the full copyright statement in the file COPYRIGH.
*/
/*

   This module defines the read and write functions to and from the network. As we are
   having reentrant function and a smarter network I/O this will get very small :-)
   
   This module is implemented by HTMux.c, and it is a part of the W3C Sample Code Library.
   
 */
#ifndef HTMUXCHANNEL_H
#define HTMUXCHANNEL_H

typedef struct _HTMuxChannel     HTMuxChannel;
typedef struct _HTMuxSession     HTMuxSession;
typedef struct _HTMuxProtocol    HTMuxProtocol;

typedef unsigned char            HTMuxSessionId;

#include "HTMuxHeader.h"
#include "HTChannl.h"
#include "HTHost.h"

#define INVSID          0               /* Invalid session id */
#define INVPID          0               /* Invalid protocol id */
/*

MUX CHANNEL

 */
extern HTMuxChannel * HTMuxChannel_new (HTHost * host);

extern HTMuxChannel * HTMuxChannel_find (HTHost * host);

extern BOOL HTMuxChannel_delete (HTMuxChannel * me);

extern BOOL HTMuxChannel_deleteAll (void);

extern HTNet * HTMuxChannel_net (HTMuxChannel * me);

extern HTMuxSession * HTMuxChannel_findSession (HTMuxChannel * me, HTMuxSessionId sid);

extern HTMuxSession * HTMuxChannel_findSessionFromNet (HTMuxChannel * me,
                                                       HTNet * net);

extern HTHost * HTMuxChannel_host (HTMuxChannel * muxch);

extern int HTMuxChannel_sendControl (HTMuxChannel * muxch, HTMuxSessionId sid,
                                     HTMuxHeader opcode, int value,
                                     const void * param, int param_size);

/*

MUX SESSION

 */
typedef enum _HTMuxClose {
    MUX_S_END_READ     = 0x1,
    MUX_S_END_WRITE    = 0x2,
    MUX_S_END          = 0x3
} HTMuxClose;

extern HTMuxSessionId HTMuxSession_accept (HTMuxChannel * muxch, HTNet * net,
                                           HTProtocolId pid);

extern HTMuxSessionId HTMuxSession_connect (HTMuxChannel * muxch, HTNet * net,
                                            HTProtocolId pid);

extern int HTMuxSession_close (HTMuxChannel * muxch, HTMuxSessionId sid);

extern HTMuxSession * HTMuxSession_register (HTMuxChannel * muxch,
                                             HTMuxSessionId sid,
                                             HTProtocolId pid);

extern HTMuxSessionId HTMuxSession_id (HTMuxSession * session);

extern HTProtocolId HTMuxSession_pid (HTMuxSession * session);

extern HTNet * HTMuxSession_net (HTMuxSession * session);

extern BOOL HTMuxSession_setClose (HTMuxChannel * muxch,
                                   HTMuxSession * session, HTMuxClose close);

extern int  HTMuxSession_credit (HTMuxSession * session);

extern BOOL HTMuxSession_setCredit (HTMuxChannel * muxch,
                                    HTMuxSessionId sid, int credit);

extern int  HTMuxSession_fragment (HTMuxSession * session);

extern BOOL HTMuxSession_setFragment (HTMuxChannel * muxch,
                                      HTMuxSessionId sid, int fragment);
/*

MUX PROTOCOL

 */
extern BOOL HTMuxProtocol_add (HTMuxChannel * muxch,
                               HTProtocolId pid, const char * protocol);

extern BOOL HTMuxProtocol_delete (HTMuxChannel * muxch, HTProtocolId pid);
/*

 */
#endif
/*

   
   ___________________________________
   
                            @(#) $Id: HTMuxCh.html,v 2.2 1997/02/16 18:42:41 frystyk Exp $
                                                                                          
    */