1 /* $NetBSD: defs.h,v 1.2 2009/12/06 17:43:05 agc Exp $ */ 2 3 /*- 4 * Copyright (c) 2009 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Alistair Crooks (agc@NetBSD.org) 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #ifndef DEFS_H_ 32 #define DEFS_H_ 33 34 #include <sys/types.h> 35 #include <sys/param.h> 36 37 #ifdef HAVE_INTTYPES_H 38 #include <inttypes.h> 39 #endif 40 41 #ifdef HAVE_STDINT_H 42 #include <stdint.h> 43 #endif 44 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 49 #define NEWARRAY(type,ptr,size,where,action) do { \ 50 if ((ptr = calloc(sizeof(type), (unsigned)(size))) == NULL) { \ 51 (void) fprintf(stderr, "%s: can't allocate %lu bytes\n", \ 52 where, (unsigned long)(size * sizeof(type))); \ 53 action; \ 54 } \ 55 } while( /* CONSTCOND */ 0) 56 57 #define RENEW(type,ptr,size,where,action) do { \ 58 type *_newptr; \ 59 _newptr = realloc(ptr, (size_t)(sizeof(type) * (size))); \ 60 if (_newptr == NULL) { \ 61 (void) fprintf(stderr, "%s: can't realloc %lu bytes\n", \ 62 where, (unsigned long)(size * sizeof(type))); \ 63 action; \ 64 } else { \ 65 ptr = _newptr; \ 66 } \ 67 } while( /* CONSTCOND */ 0) 68 69 #define NEW(type, ptr, where, action) NEWARRAY(type, ptr, 1, where, action) 70 71 #define FREE(ptr) (void) free(ptr) 72 73 #define ALLOC(type, v, size, c, init, incr, where, action) do { \ 74 uint32_t _newsize = size; \ 75 if (size == 0) { \ 76 _newsize = init; \ 77 NEWARRAY(type, v, _newsize, where ": new", action); \ 78 } else if (c == size) { \ 79 _newsize = size + incr; \ 80 RENEW(type, v, _newsize, where ": renew", action); \ 81 } \ 82 size = _newsize; \ 83 } while( /* CONSTCOND */ 0) 84 85 #define DEFINE_ARRAY(name, type) \ 86 typedef struct name { \ 87 uint32_t c; \ 88 uint32_t size; \ 89 type *v; \ 90 } name 91 92 #endif /* !DEFS_H_ */ 93