Commit | Line | Data |
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95ed0025 | 1 | /* Heap management routines (including unexec) for GNU Emacs on Windows NT. |
ab422c4d | 2 | Copyright (C) 1994, 2001-2013 Free Software Foundation, Inc. |
95ed0025 | 3 | |
3b7ad313 EN |
4 | This file is part of GNU Emacs. |
5 | ||
b9b1cc14 | 6 | GNU Emacs is free software: you can redistribute it and/or modify |
3b7ad313 | 7 | it under the terms of the GNU General Public License as published by |
b9b1cc14 GM |
8 | the Free Software Foundation, either version 3 of the License, or |
9 | (at your option) any later version. | |
3b7ad313 EN |
10 | |
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
ebff94f0 | 17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
95ed0025 RS |
18 | |
19 | Geoff Voelker (voelker@cs.washington.edu) 7-29-94 | |
20 | */ | |
21 | ||
22 | #ifndef NTHEAP_H_ | |
23 | #define NTHEAP_H_ | |
24 | ||
25 | #include <windows.h> | |
26 | ||
27 | /* | |
28 | * Heap related stuff. | |
29 | */ | |
f803a6b1 | 30 | #define get_reserved_heap_size() reserved_heap_size |
95ed0025 RS |
31 | #define get_committed_heap_size() (get_data_end () - get_data_start ()) |
32 | #define get_heap_start() get_data_start () | |
33 | #define get_heap_end() get_data_end () | |
95ed0025 | 34 | |
361358ea JB |
35 | extern unsigned char *get_data_start (void); |
36 | extern unsigned char *get_data_end (void); | |
62aba0d4 | 37 | extern size_t reserved_heap_size; |
a5352d98 | 38 | extern BOOL using_dynamic_heap; |
3443b04a | 39 | |
95ed0025 | 40 | /* Emulation of Unix sbrk(). */ |
62aba0d4 | 41 | extern void *sbrk (ptrdiff_t size); |
95ed0025 | 42 | |
a5352d98 | 43 | /* Initialize heap structures for sbrk on startup. */ |
361358ea | 44 | extern void init_heap (void); |
95ed0025 RS |
45 | |
46 | /* Round the heap to this size. */ | |
62aba0d4 | 47 | extern void round_heap (size_t size); |
95ed0025 | 48 | |
3443b04a GV |
49 | /* ----------------------------------------------------------------- */ |
50 | /* Useful routines for manipulating memory-mapped files. */ | |
51 | ||
52 | typedef struct file_data { | |
53 | char *name; | |
54 | unsigned long size; | |
55 | HANDLE file; | |
56 | HANDLE file_mapping; | |
57 | unsigned char *file_base; | |
58 | } file_data; | |
59 | ||
3443b04a GV |
60 | int open_input_file (file_data *p_file, char *name); |
61 | int open_output_file (file_data *p_file, char *name, unsigned long size); | |
62 | void close_file_data (file_data *p_file); | |
63 | ||
3443b04a GV |
64 | /* Return pointer to section header for named section. */ |
65 | IMAGE_SECTION_HEADER * find_section (char * name, IMAGE_NT_HEADERS * nt_header); | |
66 | ||
67 | /* Return pointer to section header for section containing the given | |
68 | relative virtual address. */ | |
62aba0d4 | 69 | IMAGE_SECTION_HEADER * rva_to_section (DWORD_PTR rva, IMAGE_NT_HEADERS * nt_header); |
3443b04a | 70 | |
95ed0025 | 71 | #endif /* NTHEAP_H_ */ |