#ifndef	EXEC_PORTS_H
#define	EXEC_PORTS_H
/*
**
**	Message ports and Messages.
**
**	(C) Copyright 1985,1986,1987,1988,1989 Commodore-Amiga, Inc.
**	    All Rights Reserved
*/

#ifndef EXEC_NODES_H
#include "exec/nodes.h"
#endif !EXEC_NODES_H

#ifndef EXEC_LISTS_H
#include "exec/lists.h"
#endif !EXEC_LISTS_H

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


/****** MsgPort *****************************************************/

struct MsgPort {
    struct  Node mp_Node; 
    UBYTE   mp_Flags; 
    UBYTE   mp_SigBit;		/* signal bit number    */
    void   *mp_SigTask;		/* object to be signalled */
    struct  List mp_MsgList;	/* message linked list  */
};

#define mp_SoftInt mp_SigTask	/* Alias */

/* mp_Flags: Port arrival actions (PutMsg) */
#define PF_ACTION       3	/* Mask */
#define PA_SIGNAL       0	/* Signal task in mp_SigTask */
#define PA_SOFTINT      1	/* Signal SoftInt in mp_SoftInt/mp_SigTask */
#define PA_IGNORE       2	/* Ignore arrival */


/****** Message *****************************************************/

struct Message {
    struct  Node mn_Node; 
    struct  MsgPort *mn_ReplyPort;  /* message reply port */
    UWORD   mn_Length;              /* total message length, in bytes */
				    /* (include the size of the Message */
				    /* structure in the length) */
};

#endif	/* EXEC_PORTS_H */