#ifndef EXEC_PORTS_H
#define EXEC_PORTS_H

/*
    Copyright © 1995-2017, The AROS Development Team. All rights reserved.
    $Id$

    Desc: Message ports and messages
    Lang: english
*/

#include <aros/config.h>

#ifndef EXEC_NODES_H
#   include "exec/nodes.h"
#endif
#ifndef EXEC_LISTS_H
#   include "exec/lists.h"
#endif
#if defined(__AROSPLATFORM_SMP__)
#include <aros/types/spinlock_s.h>
#endif

/* 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; /* Linked list of messages */
#if defined(__AROSPLATFORM_SMP__)
#if defined(__AROSEXEC_SMP__)
    spinlock_t mp_SpinLock;
#else
    spinlock_t mp_Pad;
#endif
#endif
};

#define mp_SoftInt mp_SigTask	/* Alias */

/* mp_Flags: Port arrival actions (PutMsg) */
#define PF_ACTION	7	/* 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 */

#define PA_CALL         3       /* Call function in mp_SigTask. This was never
                                   documented on AmigaOS and was never defined
                                   but would work for mp_Flags == 3 */

/* 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 */
