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95ed0025 RS |
1 | /* Heap management routines (including unexec) for GNU Emacs on Windows NT. |
2 | Copyright (C) 1994 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by the | |
8 | Free Software Foundation; either version 2, or (at your option) any later | |
9 | version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, but WITHOUT | |
12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License along | |
17 | with GNU Emacs; see the file COPYING. If not, write to the Free Software | |
18 | Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | ||
20 | Geoff Voelker (voelker@cs.washington.edu) 7-29-94 | |
21 | */ | |
22 | ||
23 | #ifndef NTHEAP_H_ | |
24 | #define NTHEAP_H_ | |
25 | ||
26 | #include <windows.h> | |
27 | ||
28 | /* | |
29 | * Heap related stuff. | |
30 | */ | |
f803a6b1 | 31 | #define get_reserved_heap_size() reserved_heap_size |
95ed0025 RS |
32 | #define get_committed_heap_size() (get_data_end () - get_data_start ()) |
33 | #define get_heap_start() get_data_start () | |
34 | #define get_heap_end() get_data_end () | |
35 | #define get_page_size() sysinfo_cache.dwPageSize | |
36 | #define get_allocation_unit() sysinfo_cache.dwAllocationGranularity | |
37 | #define get_processor_type() sysinfo_cache.dwProcessorType | |
38 | #define get_nt_major_version() nt_major_version | |
39 | #define get_nt_minor_version() nt_minor_version | |
40 | ||
41 | extern unsigned char *get_data_start(); | |
42 | extern unsigned char *get_data_end(); | |
43 | extern unsigned long data_region_size; | |
f803a6b1 | 44 | extern unsigned long reserved_heap_size; |
95ed0025 RS |
45 | extern SYSTEM_INFO sysinfo_cache; |
46 | extern BOOL need_to_recreate_heap; | |
47 | extern int nt_major_version; | |
48 | extern int nt_minor_version; | |
49 | ||
50 | /* Emulation of Unix sbrk(). */ | |
51 | extern void *sbrk (unsigned long size); | |
52 | ||
53 | /* Recreate the heap created during dumping. */ | |
54 | extern void recreate_heap (char *executable_path); | |
55 | ||
56 | /* Round the heap to this size. */ | |
57 | extern void round_heap (unsigned long size); | |
58 | ||
59 | /* Load in the dumped .bss section. */ | |
60 | extern void read_in_bss (char *name); | |
61 | ||
62 | /* Map in the dumped heap. */ | |
63 | extern void map_in_heap (char *name); | |
64 | ||
65 | /* Cache system info, e.g., the NT page size. */ | |
66 | extern void cache_system_info (void); | |
67 | ||
68 | /* Round ADDRESS up to be aligned with ALIGN. */ | |
69 | extern unsigned char *round_to_next (unsigned char *address, | |
70 | unsigned long align); | |
71 | ||
72 | #endif /* NTHEAP_H_ */ |