1/* $NetBSD: defs.h,v 1.3 2009/06/30 02:44:52 agc 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 "config.h"
34
35#include <sys/types.h>
36#include <sys/param.h>
37
38#ifdef HAVE_STDINT_H
39#include <stdint.h>
40#endif
41
42#include <stdio.h>
43#include <stdlib.h>
44#include <string.h>
45
46#define NEWARRAY(type,ptr,size,where,action) do {			\
47	if ((ptr = (type *) calloc(sizeof(type), (unsigned)(size))) == NULL) { \
48		(void) fprintf(stderr, "%s: can't allocate %lu bytes\n", \
49			where, (unsigned long)(size * sizeof(type)));	\
50		action;							\
51	}								\
52} while( /* CONSTCOND */ 0)
53
54#define RENEW(type,ptr,size,where,action) do {				\
55	type *_newptr;							\
56	if ((_newptr = (type *) realloc(ptr, sizeof(type) * (size))) == NULL) { \
57		(void) fprintf(stderr, "%s: can't realloc %lu bytes\n",	\
58			where, (unsigned long)(size * sizeof(type)));	\
59		action;							\
60	} else {							\
61		ptr = _newptr;						\
62	}								\
63} while( /* CONSTCOND */ 0)
64
65#define NEW(type, ptr, where, action)	NEWARRAY(type, ptr, 1, where, action)
66
67#define FREE(ptr)	(void) free(ptr)
68
69#define ALLOC(type, v, size, c, init, incr, where, action) do {		\
70	uint32_t	_newsize = size;				\
71	if (size == 0) {						\
72		_newsize = init;					\
73		NEWARRAY(type, v, _newsize, where ": new", action);	\
74	} else if (c == size) {						\
75		_newsize = size + incr;					\
76		RENEW(type, v, _newsize, where ": renew", action);	\
77	}								\
78	size = _newsize;						\
79} while( /* CONSTCOND */ 0)
80
81#define USE_ARG(x)  /*LINTED*/(void)&(x)
82
83#define DEFINE_ARRAY(name, type)					\
84typedef struct name {							\
85	uint32_t	c;						\
86	uint32_t	size;						\
87	type	       *v;						\
88} name
89
90#ifndef ABS
91#define ABS(a)		(((a) < 0) ? -(a) : (a))
92#endif
93
94#endif /* !DEFS_H_ */
95