#ifndef DOS_NOTIFY_H
#define DOS_NOTIFY_H
/*
**
**      $Filename: dos/notify.h $
**      $Release: 2.04 Includes, V37.4 $
**      $Revision: 36.8 $
**      $Date: 90/08/29 $
**
**      dos notification definitions
**
**      (C) Copyright 1989-1999 Amiga, Inc.
**          All Rights Reserved
**
*/

#ifndef EXEC_TYPES_H
#include "exec/types.h"
#endif

#ifndef EXEC_PORTS_H
#include "exec/ports.h"
#endif

#ifndef EXEC_TASKS_H
#include "exec/tasks.h"
#endif


/* use of Class and code is discouraged for the time being - we might want to
   change things */
/* --- NotifyMessage Class ------------------------------------------------ */
#define NOTIFY_CLASS    0x40000000

/* --- NotifyMessage Codes ------------------------------------------------ */
#define NOTIFY_CODE     0x1234


/* Sent to the application if SEND_MESSAGE is specified.                    */

struct NotifyMessage {
    struct Message nm_ExecMessage;
    ULONG  nm_Class;
    UWORD  nm_Code;
    struct NotifyRequest *nm_NReq;     /* don't modify the request! */
    ULONG  nm_DoNotTouch;              /* like it says!  For use by handlers */
    ULONG  nm_DoNotTouch2;              /* ditto */
};

/* Do not modify or reuse the notifyrequest while active.                   */
/* note: the first LONG of nr_Data has the length transfered                */

struct NotifyRequest {
       UBYTE *nr_Name;
       UBYTE *nr_FullName;             /* set by dos - don't touch */
       ULONG nr_UserData;              /* for applications use */
        ULONG nr_Flags;

        union {

           struct {
               struct MsgPort *nr_Port;        /* for SEND_MESSAGE */
            } nr_Msg;

           struct {
               struct Task *nr_Task;           /* for SEND_SIGNAL */
               UBYTE nr_SignalNum;             /* for SEND_SIGNAL */
               UBYTE nr_pad[3];
           } nr_Signal;
        } nr_stuff;

        ULONG nr_Reserved[4];           /* leave 0 for now */

       /* internal use by handlers */
       ULONG nr_MsgCount;              /* # of outstanding msgs */
        struct MsgPort *nr_Handler;     /* handler sent to (for EndNotify) */
};

/* --- NotifyRequest Flags ------------------------------------------------ */
#define NRF_SEND_MESSAGE       1
#define NRF_SEND_SIGNAL                2
#define NRF_WAIT_REPLY         8
#define NRF_NOTIFY_INITIAL      16

/* do NOT set or remove NRF_MAGIC!  Only for use by handlers! */
#define NRF_MAGIC       0x80000000

/* bit numbers */
#define NRB_SEND_MESSAGE       0
#define NRB_SEND_SIGNAL                1
#define NRB_WAIT_REPLY         3
#define NRB_NOTIFY_INITIAL      4

#define NRB_MAGIC               31

/* Flags reserved for private use by the handler: */
#define NR_HANDLER_FLAGS        0xffff0000

#endif /* DOS_NOTIFY_H */