include/selectors.h

   1 /*
   2  * Selector definitions
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 #ifndef __WINE_SELECTORS_H
   8 #define __WINE_SELECTORS_H
   9
  10 #include "windef.h"
  11 #include "wine/library.h"
  12
  13 extern WORD SELECTOR_AllocBlock( const void *base, DWORD size, unsigned char flags );
  14 extern WORD SELECTOR_ReallocBlock( WORD sel, const void *base, DWORD size );
  15 extern void SELECTOR_FreeBlock( WORD sel );
  16
  17 extern UINT W32S_offset;
  18
  19 #define W32S_APP2WINE(addr) ((addr)? (DWORD)(addr) + W32S_offset : 0)
  20 #define W32S_WINE2APP(addr) ((addr)? (DWORD)(addr) - W32S_offset : 0)
  21
  22 #define FIRST_LDT_ENTRY_TO_ALLOC  17
  23
  24 #define IS_SELECTOR_FREE(sel) (!(wine_ldt_copy.flags[LOWORD(sel) >> 3] & WINE_LDT_FLAGS_ALLOCATED))
  25
  26 /* Determine if sel is a system selector (i.e. not managed by Wine) */
  27 #define IS_SELECTOR_SYSTEM(sel) \
  28    (!((sel) & 4) || ((LOWORD(sel) >> 3) < FIRST_LDT_ENTRY_TO_ALLOC))
  29 #define IS_SELECTOR_32BIT(sel) \
  30    (IS_SELECTOR_SYSTEM(sel) || (wine_ldt_copy.flags[LOWORD(sel) >> 3] & WINE_LDT_FLAGS_32BIT))
  31
  32 #endif /* __WINE_SELECTORS_H */