/*
 * applport.h
 *
 * Author: Tomi Ollila <too@cs.hut.fi>
 *
 * 	Copyright (c) 1993 Tomi Ollila
 * 	    All rights reserved
 *
 * Created: Fri Nov  5 17:55:48 1993 too
 * Last modified: Mon Nov 15 18:05:13 1993 too
 *
 * HISTORY
 * $Log: applport.h,v $
 * Revision 1.1  1993/11/17  11:47:44  too
 * Initial revision
 *
 * Revision 1.1  1993/11/17  11:47:44  too
 * Initial revision
 *
 */

#ifndef _APPLPORT_H_
#define _APPLPORT_H_

#ifndef EXEC_INTERRUPTS_H
#include <exec/interrupts.h>
#endif

#ifndef DEVICES_TIMER_H
#include <devices/timer.h>
#endif

#include <sys/types.h>

#ifndef inline
#define inline __inline
#endif

/*
 * Application info object to always rendezvous w/ right application. This
 * always exists w/ the application that has handler open. waitforchar and
 * write structures are created at need. Since the use of IoctlSocket() the
 * whole WaitForPort structure shrunk into one timerequest structure which
 * is now incorporated into this module. This simplified the code a great
 * deal :) (r1.4 -> r1.5)
 */

struct ApplMsgPort {
  struct MsgPort	amp_Msgport;
  struct Interrupt	amp_Interrupt;
};

void initApplMsgPort(struct ApplMsgPort * port);

struct ApplShared;
struct PendingWrites;
struct ApplPort {
  struct ApplMsgPort	ap_AMP;     /*  */
  struct ApplShared *	ap_AS;
  struct Task *		ap_Task;    /* task pointer of orig opener */
  LONG		 	ap_Sd;	    /* socket fd for application */
  BYTE			ap_OpenCnt; /* Open() + reopens */
  BYTE			ap_Disb;    /* data in socket buffer ? */
  struct PendingWrites*	ap_Pw;	    /* pointer to my pending write */
  struct DosPacket *	ap_Packet;  /* packet in */
  struct timerequest	ap_Tr;	    /* Request for timer message. */
};

struct PendingWrites {
  struct Node	     pw_Link;	  /* link freed pending nodes together */
  struct ApplPort *  pw_Applport; /* link to application */
  char *	     pw_Start;    /* start addres of not written data and ..*/
  int		     pw_Left;	  /* ... bytes not written (current pw) */
  int		     pw_Len;	  /* length of data for final ReplyPkt() */
  struct DosPacket * pw_Packet;	  /* Write packet pending */
};

/*
 * Data reachable from application structures
 */

struct ApplShared {
  struct ApplPort *	as_applcbbuf[0x40]; /* hardcoded :( */
  LONG			as_applcbpos;
  LONG			as_applcbcur; /* here for consistency */
  struct Task *		as_me;
  ULONG			as_applportflag;
};

#define	applcbbuf 	AS RFI as_applcbbuf
#define	applcbpos 	AS RFI as_applcbpos
#define	applcbcur 	AS RFI as_applcbcur
#define	me	     	AS RFI as_me
#define	applportflag   	AS RFI as_applportflag

static inline void
NewList(struct List * list)
{
  list->lh_Head = (struct Node *)&list->lh_Tail;
  list->lh_Tail = 0;
  list->lh_TailPred = (struct Node *)&list->lh_Head;
}

#endif /* _APPLPORT_H_ */