compiler/include/exec/memheaderext.h

   1 #ifndef EXEC_MEMHEADEREXT_H
   2 #define EXEC_MEMHEADEREXT_H
   3 /*
   4     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   5     $Id$
   6
   7     Desc: Extended memory handling. New in AROS.
   8     Lang: english
   9 */
  10
  11 #ifndef EXEC_MEMORY_H
  12 #   include <exec/memory.h>
  13 #endif
  14
  15 struct MemHeaderExt
  16 {
  17     struct MemHeader mhe_MemHeader;
  18
  19     /* Let an external 'driver' manage this memory
  20        region opaquely.  */
  21
  22     APTR  * mhe_UserData;
  23
  24     APTR  (* mhe_Alloc)   (struct MemHeaderExt *, ULONG size, ULONG *flags);
  25     VOID  (* mhe_Free)    (struct MemHeaderExt *, APTR  mem,  ULONG  size);
  26     APTR  (* mhe_AllocAbs)(struct MemHeaderExt *, ULONG size, APTR   addr);
  27     APTR  (* mhe_ReAlloc) (struct MemHeaderExt *, APTR  old,  ULONG  size);
  28     ULONG (* mhe_Avail)   (struct MemHeaderExt *, ULONG flags);
  29 };
  30
  31 /* Indicates that the memory region is to be
  32    treated as an opaque object managed only through the
  33    functions whose pointers are in the extended mem header.  */
  34 #define MEMF_MANAGED  (1L << 15)
  35
  36 #endif