1 /* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
2 This file was then part of the GNU C Library. */
4 /* Copyright (c) 2010-2012. The SimGrid Team.
5 * All rights reserved. */
7 /* This program is free software; you can redistribute it and/or modify it
8 * under the terms of the license (GNU LGPL) which comes with this package. */
17 # include <sys/types.h> /* for size_t */
18 # include <stdio.h> /* for NULL */
21 #include "xbt/dynar.h"
23 /* Datatype representing a separate heap. The whole point of the mmalloc module
24 * is to allow several such heaps in the process. It thus works by redefining
25 * all the classical memory management functions (malloc and friends) with an
26 * extra first argument: the heap in which the memory is to be taken.
28 * The heap structure itself is an opaque object that shouldnt be messed with.
30 typedef struct mdesc *xbt_mheap_t;
32 /* Allocate SIZE bytes of memory (and memset it to 0). */
33 XBT_PUBLIC( void ) *mmalloc(xbt_mheap_t md, size_t size);
35 /* Allocate SIZE bytes of memory (and don't mess with it) */
36 void *mmalloc_no_memset(xbt_mheap_t mdp, size_t size);
38 /* Re-allocate the previously allocated block in void*, making the new block
40 XBT_PUBLIC( void ) *mrealloc(xbt_mheap_t md, void *ptr, size_t size);
42 /* Free a block allocated by `mmalloc', `mrealloc' or `mcalloc'. */
43 XBT_PUBLIC( void ) mfree(xbt_mheap_t md, void *ptr);
45 XBT_PUBLIC( xbt_mheap_t ) xbt_mheap_new(int fd, void *baseaddr);
47 XBT_PUBLIC( void ) xbt_mheap_destroy_no_free(xbt_mheap_t md);
49 XBT_PUBLIC( void ) *xbt_mheap_destroy(xbt_mheap_t md);
51 /* return the heap used when NULL is passed as first argument to any mm* function */
52 XBT_PUBLIC( xbt_mheap_t ) mmalloc_get_default_md(void);
54 /* To change the heap used when using the legacy version malloc/free/realloc and such */
55 void mmalloc_set_current_heap(xbt_mheap_t new_heap);
56 xbt_mheap_t mmalloc_get_current_heap(void);
58 int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2);
59 int mmalloc_linear_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2);
60 void init_heap_information(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t to_ignore1, xbt_dynar_t to_ignore2);
61 void match_equals(xbt_dynar_t list);
62 int compare_area(void *area1, void* area2, xbt_dynar_t previous);
63 void reset_heap_information(void);
65 void mmalloc_backtrace_block_display(void* heapinfo, int block);
66 void mmalloc_backtrace_fragment_display(void* heapinfo, int block, int frag);
67 void mmalloc_backtrace_display(void *addr);
69 int is_free_area(void *area, xbt_mheap_t heap);
71 size_t mmalloc_get_bytes_used(xbt_mheap_t);
73 #endif /* MMALLOC_H */