#ifndef EXEC_NODES_H
#define EXEC_NODES_H
/*
**      $Filename: exec/nodes.h $
**      $Release: 2.04 Includes, V37.4 $
**      $Revision: 36.11 $
**      $Date: 91/01/09 $
**
**      Nodes & Node type identifiers.
**
**      (C) Copyright 1985-1999 Amiga, Inc.
**          All Rights Reserved
*/

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


/*
 *  List Node Structure.  Each member in a list starts with a Node
 */

struct Node {
    struct  Node *ln_Succ;     /* Pointer to next (successor) */
    struct  Node *ln_Pred;     /* Pointer to previous (predecessor) */
    UBYTE   ln_Type;
    BYTE    ln_Pri;            /* Priority, for sorting */
    char    *ln_Name;           /* ID string, null terminated */
};      /* Note: word aligned */

/* minimal node -- no type checking possible */
struct MinNode {
    struct MinNode *mln_Succ;
    struct MinNode *mln_Pred;
};


/*
** Note: Newly initialized IORequests, and software interrupt structures
** used with Cause(), should have type NT_UNKNOWN.  The OS will assign a type
** when they are first used.
*/
/*----- Node Types for LN_TYPE -----*/
#define NT_UNKNOWN     0
#define NT_TASK                1       /* Exec task */
#define NT_INTERRUPT   2
#define NT_DEVICE      3
#define NT_MSGPORT     4
#define NT_MESSAGE     5       /* Indicates message currently pending */
#define NT_FREEMSG     6
#define NT_REPLYMSG    7       /* Message has been replied */
#define NT_RESOURCE    8
#define NT_LIBRARY     9
#define NT_MEMORY      10
#define NT_SOFTINT     11      /* Internal flag used by SoftInits */
#define NT_FONT                12
#define NT_PROCESS     13      /* AmigaDOS Process */
#define NT_SEMAPHORE   14
#define NT_SIGNALSEM   15      /* signal semaphores */
#define NT_BOOTNODE    16
#define NT_KICKMEM     17
#define NT_GRAPHICS    18
#define NT_DEATHMESSAGE 19

#define NT_USER                254     /* User node types work down from here */
#define NT_EXTENDED     255

#endif  /* EXEC_NODES_H */