1 /* Copyright (c) 2010-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 /* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
8 This file was then part of the GNU C Library. */
13 #include <simgrid_config.h>
19 # include <sys/types.h> /* for size_t */
20 # include <stdio.h> /* for NULL */
23 #include "xbt/dynar.h"
25 #include "src/mc/mc_forward.h"
29 /* Datatype representing a separate heap. The whole point of the mmalloc module is to allow several such heaps in the
30 * process. It thus works by redefining all the classical memory management functions (malloc and friends) with an
31 * extra first argument: the heap in which the memory is to be taken.
33 * The heap structure itself is an opaque object that shouldnt be messed with.
35 typedef struct mdesc s_xbt_mheap_t;
36 typedef struct mdesc *xbt_mheap_t;
38 /* Allocate SIZE bytes of memory (and memset it to 0). */
39 XBT_PUBLIC( void ) *mmalloc(xbt_mheap_t md, size_t size);
41 /* Allocate SIZE bytes of memory (and don't mess with it) */
42 void *mmalloc_no_memset(xbt_mheap_t mdp, size_t size);
44 /* Re-allocate the previously allocated block in void*, making the new block SIZE bytes long. */
45 XBT_PUBLIC( void ) *mrealloc(xbt_mheap_t md, void *ptr, size_t size);
47 /* Free a block allocated by `mmalloc', `mrealloc' or `mcalloc'. */
48 XBT_PUBLIC( void ) mfree(xbt_mheap_t md, void *ptr);
50 XBT_PUBLIC( xbt_mheap_t ) xbt_mheap_new(int fd, void *baseaddr);
52 #define XBT_MHEAP_OPTION_MEMSET 1
54 XBT_PUBLIC( xbt_mheap_t ) xbt_mheap_new_options(int fd, void *baseaddr, int options);
56 XBT_PUBLIC( void ) xbt_mheap_destroy_no_free(xbt_mheap_t md);
58 XBT_PUBLIC( void ) *xbt_mheap_destroy(xbt_mheap_t md);
60 /* return the heap used when NULL is passed as first argument to any mm* function */
61 XBT_PUBLIC( xbt_mheap_t ) mmalloc_get_default_md(void);
63 /* To change the heap used when using the legacy version malloc/free/realloc and such */
64 xbt_mheap_t mmalloc_set_current_heap(xbt_mheap_t new_heap);
65 xbt_mheap_t mmalloc_get_current_heap(void);
67 int mmalloc_compare_heap(mc_snapshot_t snapshot1, mc_snapshot_t snapshot2);
68 int mmalloc_linear_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2);
69 int init_heap_information(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t to_ignore1, xbt_dynar_t to_ignore2);
70 int compare_heap_area(int process_index, const void *area1, const void* area2, mc_snapshot_t snapshot1,
71 mc_snapshot_t snapshot2, xbt_dynar_t previous, mc_type_t type, int pointer_level);
72 void reset_heap_information(void);
74 size_t mmalloc_get_bytes_used(xbt_mheap_t);
75 ssize_t mmalloc_get_busy_size(xbt_mheap_t, void *ptr);
77 void* malloc_no_memset(size_t n);
82 #endif /* MMALLOC_H */