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/* Heap management routines (including unexec) for GNU Emacs on Windows NT.
Copyright (C) 1994 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any later
version.
GNU Emacs 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 General Public License for
more details.
You should have received a copy of the GNU General Public License along
with GNU Emacs; see the file COPYING. If not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
Geoff Voelker (voelker@cs.washington.edu) 7-29-94
*/
#ifndef NTHEAP_H_
#define NTHEAP_H_
#include <windows.h>
/*
* Heap related stuff.
*/
#define get_reserved_heap_size() reserved_heap_size
#define get_committed_heap_size() (get_data_end () - get_data_start ())
#define get_heap_start() get_data_start ()
#define get_heap_end() get_data_end ()
#define get_page_size() sysinfo_cache.dwPageSize
#define get_allocation_unit() sysinfo_cache.dwAllocationGranularity
#define get_processor_type() sysinfo_cache.dwProcessorType
#define get_nt_major_version() nt_major_version
#define get_nt_minor_version() nt_minor_version
extern unsigned char *get_data_start();
extern unsigned char *get_data_end();
extern unsigned long data_region_size;
extern unsigned long reserved_heap_size;
extern SYSTEM_INFO sysinfo_cache;
extern BOOL need_to_recreate_heap;
extern int nt_major_version;
extern int nt_minor_version;
/* Emulation of Unix sbrk(). */
extern void *sbrk (unsigned long size);
/* Recreate the heap created during dumping. */
extern void recreate_heap (char *executable_path);
/* Round the heap to this size. */
extern void round_heap (unsigned long size);
/* Load in the dumped .bss section. */
extern void read_in_bss (char *name);
/* Map in the dumped heap. */
extern void map_in_heap (char *name);
/* Cache system info, e.g., the NT page size. */
extern void cache_system_info (void);
/* Round ADDRESS up to be aligned with ALIGN. */
extern unsigned char *round_to_next (unsigned char *address,
unsigned long align);
#endif /* NTHEAP_H_ */
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