1 /* heap.h --
2  * Created: Sun Aug 10 19:33:53 2003 by vle@gmx.net
3  * Copyright 2003 Aleksey Cheusov <vle@gmx.net>
4  * This program comes with ABSOLUTELY NO WARRANTY.
5  *
6  * This program 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 1, or (at your option) any
9  * later version.
10  *
11  * This program is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License along
17  * with this program; if not, write to the Free Software Foundation, Inc.,
18  * 675 Mass Ave, Cambridge, MA 02139, USA.
19  */
20 
21 /* create a heap. 'opts' MUST BE NULL at this time */
22 
23 #ifndef DONOT_USE_INTERNAL_HEAP
24 
25 extern int heap_create (void **heap, void *opts);
26 extern const char *heap_error (int err_code);
27 extern void heap_destroy (void **heap);
28 extern void * heap_alloc (void *heap, size_t size);
29 extern char * heap_strdup (void *heap, const char *s);
30 extern void heap_free (void *heap, void *p);
31 extern void * heap_realloc (void *heap, void *p, size_t size);
32 extern int heap_isempty (void *heap);
33 
34 #else
35 
36 #define heap_create(heap, opts) (0);
37 #define heap_error(err_code) (NULL)
38 #define heap_destroy(heap) (0)
39 #define heap_alloc(heap, size) (xmalloc (size))
40 #define heap_strdup(heap, s) (xstrdup (s))
41 #define heap_free(heap, p) (p ? xfree (p), NULL : NULL)
42 #define heap_realloc(heap, p, size) (realloc (p, size))
43 #define heap_isempty(heap) (1)
44 
45 #endif
46