_006E.md

#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 */