1 /* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
2 This file was then part of the GNU C Library. */
4 /* Copyright (c) 2010-2014. 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. */
16 # include <sys/types.h> /* for size_t */
17 # include <stdio.h> /* for NULL */
20 #include "xbt/dynar.h"
22 #include "mc/datatypes.h"
24 /* Datatype representing a separate heap. The whole point of the mmalloc module
25 * is to allow several such heaps in the process. It thus works by redefining
26 * all the classical memory management functions (malloc and friends) with an
27 * extra first argument: the heap in which the memory is to be taken.
29 * The heap structure itself is an opaque object that shouldnt be messed with.
31 typedef struct mdesc *xbt_mheap_t;
33 /* Allocate SIZE bytes of memory (and memset it to 0). */
34 XBT_PUBLIC( void ) *mmalloc(xbt_mheap_t md, size_t size);
36 /* Allocate SIZE bytes of memory (and don't mess with it) */
37 void *mmalloc_no_memset(xbt_mheap_t mdp, size_t size);
39 /* Re-allocate the previously allocated block in void*, making the new block
42 XBT_PUBLIC( void ) *mrealloc(xbt_mheap_t md, void *ptr, size_t size);
44 /* Free a block allocated by `mmalloc', `mrealloc' or `mcalloc'. */
45 XBT_PUBLIC( void ) mfree(xbt_mheap_t md, void *ptr);
47 XBT_PUBLIC( xbt_mheap_t ) xbt_mheap_new(int fd, void *baseaddr);
49 XBT_PUBLIC( void ) xbt_mheap_destroy_no_free(xbt_mheap_t md);
51 XBT_PUBLIC( void ) *xbt_mheap_destroy(xbt_mheap_t md);
53 /* return the heap used when NULL is passed as first argument to any mm* function */
54 XBT_PUBLIC( xbt_mheap_t ) mmalloc_get_default_md(void);
56 /* To change the heap used when using the legacy version malloc/free/realloc and such */
57 void mmalloc_set_current_heap(xbt_mheap_t new_heap);
58 xbt_mheap_t mmalloc_get_current_heap(void);
60 int mmalloc_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2, mc_object_info_t info, mc_object_info_t other_info);
61 int mmalloc_linear_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2);
62 int init_heap_information(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t to_ignore1, xbt_dynar_t to_ignore2);
63 int compare_heap_area(void *area1, void* area2, xbt_dynar_t previous, mc_object_info_t info, mc_object_info_t other_info, char *type, int pointer_level);
64 void reset_heap_information(void);
66 size_t mmalloc_get_bytes_used(xbt_mheap_t);
67 ssize_t mmalloc_get_busy_size(xbt_mheap_t, void *ptr);
69 #endif /* MMALLOC_H */