70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/* Heap management routines (including unexec) for GNU Emacs on Windows NT.
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Copyright (C) 1994, 2001-2024 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at
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your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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Geoff Voelker (voelker@cs.washington.edu) 7-29-94
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*/
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#ifndef NTHEAP_H_
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#define NTHEAP_H_
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#include <windows.h>
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/*
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* Heap related stuff.
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*/
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extern unsigned char *get_data_start (void);
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extern unsigned char *get_data_end (void);
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extern size_t reserved_heap_size;
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extern void *mmap_realloc (void **, size_t);
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extern void mmap_free (void **);
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extern void *mmap_alloc (void **, size_t);
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extern void report_temacs_memory_usage (void);
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/* Emulation of Unix sbrk(). */
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extern void *sbrk (ptrdiff_t size);
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/* Initialize heap structures for sbrk on startup. */
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extern void init_heap (bool);
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/* ----------------------------------------------------------------- */
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/* Useful routines for manipulating memory-mapped files. */
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typedef struct file_data {
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char *name;
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unsigned long size;
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HANDLE file;
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HANDLE file_mapping;
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unsigned char *file_base;
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} file_data;
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int open_input_file (file_data *p_file, char *name);
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int open_output_file (file_data *p_file, char *name, unsigned long size);
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void close_file_data (file_data *p_file);
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/* Return pointer to section header for named section. */
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IMAGE_SECTION_HEADER * find_section (const char *, IMAGE_NT_HEADERS *);
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/* Return pointer to section header for section containing the given
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relative virtual address. */
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IMAGE_SECTION_HEADER * rva_to_section (DWORD_PTR, IMAGE_NT_HEADERS *);
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#endif /* NTHEAP_H_ */
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