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comparison src/ntheap.h @ 100:4be1180a9e89 r20-1b2

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Import from CVS: tag r20-1b2
author cvs
date Mon, 13 Aug 2007 09:15:11 +0200
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99:2d83cbd90d8d 100:4be1180a9e89
1 /* Heap management routines (including unexec) for XEmacs on Windows NT.
2 Copyright (C) 1994 Free Software Foundation, Inc.
3
4 This file is part of XEmacs.
5
6 XEmacs 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
9 later version.
10
11 XEmacs 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
14 for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with XEmacs; see the file COPYING. If not, write to the Free
18 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
19 02111-1307, USA.
20
21 Geoff Voelker (voelker@cs.washington.edu) 7-29-94 */
22
23 /* Adapted for XEmacs by David Hobley <david@spook-le0.cia.com.au> */
24
25 #ifndef NTHEAP_H_
26 #define NTHEAP_H_
27
28 #include <windows.h>
29
30 /*
31 * Heap related stuff.
32 */
33 #define get_reserved_heap_size() reserved_heap_size
34 #define get_committed_heap_size() (get_data_end () - get_data_start ())
35 #define get_heap_start() get_data_start ()
36 #define get_heap_end() get_data_end ()
37 #define get_page_size() sysinfo_cache.dwPageSize
38 #define get_allocation_unit() sysinfo_cache.dwAllocationGranularity
39 #define get_processor_type() sysinfo_cache.dwProcessorType
40 #define get_nt_major_version() nt_major_version
41 #define get_nt_minor_version() nt_minor_version
42
43 extern unsigned char *get_data_start();
44 extern unsigned char *get_data_end();
45 extern unsigned long data_region_size;
46 extern unsigned long reserved_heap_size;
47 extern SYSTEM_INFO sysinfo_cache;
48 extern BOOL need_to_recreate_heap;
49 extern int nt_major_version;
50 extern int nt_minor_version;
51
52 /* Emulation of Unix sbrk(). */
53 extern void *sbrk (unsigned long size);
54
55 /* Recreate the heap created during dumping. */
56 extern void recreate_heap (char *executable_path);
57
58 /* Round the heap to this size. */
59 extern void round_heap (unsigned long size);
60
61 /* Load in the dumped .bss section. */
62 extern void read_in_bss (char *name);
63
64 /* Map in the dumped heap. */
65 extern void map_in_heap (char *name);
66
67 /* Cache system info, e.g., the NT page size. */
68 extern void cache_system_info (void);
69
70 /* Round ADDRESS up to be aligned with ALIGN. */
71 extern unsigned char *round_to_next (unsigned char *address,
72 unsigned long align);
73
74 #endif /* NTHEAP_H_ */