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Leaked source code of windows server 2003
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windows-server-2003/base/mvdm/dos/v86/inc/arena.inc

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commiting as it is
4 years ago
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  1. BREAK <Memory arena structure>
  3. ;
  4. ; Revision History:
  5. ;
  6. ; M001 - added equates for UMB allocation
  7. ; M002 - added equate for LINK/UNLINK state of UMBs
  8. ; M026 - STRAT_MASK should be HF_MASK AND HO_MASK
  10. ;** Arena Header
  11. ;
  13. arena STRUC
  14. arena_signature DB ? ; 4D for valid item, 5A for last item
  15. arena_owner DW ? ; owner of arena item
  16. arena_size DW ? ; size in paragraphs of item
  17. arena_reserved DB 3 DUP(?) ; reserved
  18. arena_name DB 8 DUP(?) ; owner file name
  19. arena ENDS
  21. ;
  22. ; CAUTION: The routines in ALLOC.ASM rely on the fact that arena_signature
  23. ; and arena_owner_system are all equal to zero and are contained in DI. Change
  24. ; them and change ALLOC.ASM.
  25. ;
  26. ; I think I have all of these covered via .errnz - JGL
  29. arena_owner_system EQU 0 ; free block indication
  31. arena_signature_normal EQU 4Dh ; valid signature, not end of arena
  32. arena_signature_end EQU 5Ah ; valid signature, last block in arena
  35. FIRST_FIT EQU 00000000B
  36. BEST_FIT EQU 00000001B
  37. LAST_FIT EQU 00000010B
  39. LOW_FIRST EQU 00000000B ; M001
  40. HIGH_FIRST EQU 10000000B ; M001
  41. HIGH_ONLY EQU 01000000B ; M001
  43. LINKSTATE EQU 00000001B ; M002
  45. HF_MASK EQU NOT HIGH_FIRST ; M001
  46. HO_MASK EQU NOT HIGH_ONLY ; M001
  48. STRAT_MASK EQU HF_MASK AND HO_MASK ; M001;
  49. ; M026: used to mask of bits
  50. ; M026: 6 & 7 of AllocMethod
  53.