| 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 | */ |
| 31 | #define get_reserved_heap_size() reserved_heap_size |
| 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; |
| 44 | extern unsigned long reserved_heap_size; |
| 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_ */ |