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/*
* Selector definitions
*
* Copyright 1995 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __WINE_SELECTORS_H
#define __WINE_SELECTORS_H
#include "windef.h"
#include "wine/library.h"
extern WORD SELECTOR_AllocBlock( const void *base, DWORD size, unsigned char flags );
extern WORD SELECTOR_ReallocBlock( WORD sel, const void *base, DWORD size );
extern void SELECTOR_FreeBlock( WORD sel );
extern UINT W32S_offset;
#define W32S_APP2WINE(addr) ((addr)? (DWORD)(addr) + W32S_offset : 0)
#define W32S_WINE2APP(addr) ((addr)? (DWORD)(addr) - W32S_offset : 0)
#define FIRST_LDT_ENTRY_TO_ALLOC 17
#define IS_SELECTOR_FREE(sel) (!(wine_ldt_copy.flags[LOWORD(sel) >> 3] & WINE_LDT_FLAGS_ALLOCATED))
/* Determine if sel is a system selector (i.e. not managed by Wine) */
#define IS_SELECTOR_SYSTEM(sel) \
(!((sel) & 4) || ((LOWORD(sel) >> 3) < FIRST_LDT_ENTRY_TO_ALLOC))
#define IS_SELECTOR_32BIT(sel) \
(IS_SELECTOR_SYSTEM(sel) || (wine_ldt_copy.flags[LOWORD(sel) >> 3] & WINE_LDT_FLAGS_32BIT))
#endif /* __WINE_SELECTORS_H */
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