1/* $NetBSD: defs.h,v 1.4 2006/04/17 16:44:42 thorpej Exp $ */
2
3/*
4 * Copyright (c) 1999-2005 Alistair Crooks.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote
15 *    products derived from this software without specific prior written
16 *    permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
19 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
24 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30#ifndef DEFS_H_
31#define DEFS_H_
32
33#include <sys/types.h>
34#include <sys/param.h>
35
36#ifdef HAVE_STDINT_H
37#include <stdint.h>
38#endif
39
40#include <stdio.h>
41#include <stdlib.h>
42#include <string.h>
43
44#define NEWARRAY(type,ptr,size,where,action) do {			\
45	if ((ptr = (type *) calloc(sizeof(type), (unsigned)(size))) == NULL) { \
46		(void) fprintf(stderr, "%s: can't allocate %lu bytes\n", \
47			where, (unsigned long)(size * sizeof(type)));	\
48		action;							\
49	}								\
50} while( /* CONSTCOND */ 0)
51
52#define RENEW(type,ptr,size,where,action) do {				\
53	type *_newptr;							\
54	if ((_newptr = (type *) realloc(ptr, sizeof(type) * (size))) == NULL) { \
55		(void) fprintf(stderr, "%s: can't realloc %lu bytes\n",	\
56			where, (unsigned long)(size * sizeof(type)));	\
57		action;							\
58	} else {							\
59		ptr = _newptr;						\
60	}								\
61} while( /* CONSTCOND */ 0)
62
63#define NEW(type, ptr, where, action)	NEWARRAY(type, ptr, 1, where, action)
64
65#define FREE(ptr)	(void) free(ptr)
66
67#define ALLOC(type, v, size, c, init, incr, where, action) do {		\
68	uint32_t	_newsize = size;				\
69	if (size == 0) {						\
70		_newsize = init;					\
71		NEWARRAY(type, v, _newsize, where ": new", action);	\
72	} else if (c == size) {						\
73		_newsize = size + incr;					\
74		RENEW(type, v, _newsize, where ": renew", action);	\
75	}								\
76	size = _newsize;						\
77} while( /* CONSTCOND */ 0)
78
79/*		(void) memset(&v[size], 0x0, sizeof(type) * incr);	\*/
80
81#define DEFINE_ARRAY(name, type)					\
82typedef struct name {							\
83	uint32_t	c;						\
84	uint32_t	size;						\
85	type	       *v;						\
86} name
87
88#endif /* !DEFS_H_ */
89