67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/*-
|
|
* Copyright (c) 2005-2008 Poul-Henning Kamp
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#define ALLOC_OBJ(to, type_magic) \
|
|
do { \
|
|
(to) = calloc(sizeof *(to), 1); \
|
|
assert((to) != NULL); \
|
|
(to)->magic = (type_magic); \
|
|
} while (0)
|
|
|
|
#define FREE_OBJ(to) \
|
|
do { \
|
|
(to)->magic = (0); \
|
|
free(to); \
|
|
} while (0)
|
|
|
|
#define CHECK_OBJ(ptr, type_magic) \
|
|
do { \
|
|
assert((ptr)->magic == type_magic); \
|
|
} while (0)
|
|
|
|
#define CHECK_OBJ_NOTNULL(ptr, type_magic) \
|
|
do { \
|
|
assert((ptr) != NULL); \
|
|
assert((ptr)->magic == type_magic); \
|
|
} while (0)
|
|
|
|
#define CAST_OBJ(to, from, type_magic) \
|
|
do { \
|
|
(to) = (from); \
|
|
if ((to) != NULL) \
|
|
CHECK_OBJ((to), (type_magic)); \
|
|
} while (0)
|
|
|
|
#define CAST_OBJ_NOTNULL(to, from, type_magic) \
|
|
do { \
|
|
(to) = (from); \
|
|
assert((to) != NULL); \
|
|
CHECK_OBJ((to), (type_magic)); \
|
|
} while (0)
|
|
|