1/*-
2 * Copyright (c) 2005-2008 Poul-Henning Kamp
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/usr.sbin/fifolog/lib/miniobj.h 177285 2008-03-16 23:00:43Z phk $
27 */
28
29#define ALLOC_OBJ(to, type_magic) \
30 do { \
31 (to) = calloc(sizeof *(to), 1); \
32 assert((to) != NULL); \
33 (to)->magic = (type_magic); \
34 } while (0)
35
36#define FREE_OBJ(to) \
37 do { \
38 (to)->magic = (0); \
39 free(to); \
40 } while (0)
41
42#define CHECK_OBJ(ptr, type_magic) \
43 do { \
44 assert((ptr)->magic == type_magic); \
45 } while (0)
46
47#define CHECK_OBJ_NOTNULL(ptr, type_magic) \
48 do { \
49 assert((ptr) != NULL); \
50 assert((ptr)->magic == type_magic); \
51 } while (0)
52
53#define CAST_OBJ(to, from, type_magic) \
54 do { \
55 (to) = (from); \
56 if ((to) != NULL) \
57 CHECK_OBJ((to), (type_magic)); \
58 } while (0)
59
60#define CAST_OBJ_NOTNULL(to, from, type_magic) \
61 do { \
62 (to) = (from); \
63 assert((to) != NULL); \
64 CHECK_OBJ((to), (type_magic)); \
65 } while (0)
66
2 * Copyright (c) 2005-2008 Poul-Henning Kamp
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/usr.sbin/fifolog/lib/miniobj.h 177285 2008-03-16 23:00:43Z phk $
27 */
28
29#define ALLOC_OBJ(to, type_magic) \
30 do { \
31 (to) = calloc(sizeof *(to), 1); \
32 assert((to) != NULL); \
33 (to)->magic = (type_magic); \
34 } while (0)
35
36#define FREE_OBJ(to) \
37 do { \
38 (to)->magic = (0); \
39 free(to); \
40 } while (0)
41
42#define CHECK_OBJ(ptr, type_magic) \
43 do { \
44 assert((ptr)->magic == type_magic); \
45 } while (0)
46
47#define CHECK_OBJ_NOTNULL(ptr, type_magic) \
48 do { \
49 assert((ptr) != NULL); \
50 assert((ptr)->magic == type_magic); \
51 } while (0)
52
53#define CAST_OBJ(to, from, type_magic) \
54 do { \
55 (to) = (from); \
56 if ((to) != NULL) \
57 CHECK_OBJ((to), (type_magic)); \
58 } while (0)
59
60#define CAST_OBJ_NOTNULL(to, from, type_magic) \
61 do { \
62 (to) = (from); \
63 assert((to) != NULL); \
64 CHECK_OBJ((to), (type_magic)); \
65 } while (0)
66