1/* $Id: vmbuf.h,v 1.3 2004/06/11 16:00:17 ludvigm Exp $ */ 2 3/* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32#ifndef _VMBUF_H 33#define _VMBUF_H 34 35#include <sys/types.h> 36 37/* 38 * bp v 39 * v v 40 * ........................ 41 * <--------------> l 42 * <----------------------> bl 43 */ 44typedef struct _vchar_t_ { 45#if notyet 46 u_int32_t t; /* type of the value */ 47 vchar_t *n; /* next vchar_t buffer */ 48 size_t bl; /* length of the buffer */ 49 caddr_t bp; /* pointer to the buffer */ 50#endif 51 size_t l; /* length of the value */ 52 caddr_t v; /* place holder to the pointer to the value */ 53} vchar_t; 54 55#define VPTRINIT(p) \ 56do { \ 57 if (p) { \ 58 vfree(p); \ 59 (p) = NULL; \ 60 } \ 61} while(0); 62 63/* vfree is already defined in Apple's system libraries */ 64#define vfree vmbuf_free 65 66extern vchar_t *vmalloc (size_t); 67extern vchar_t *vrealloc (vchar_t *, size_t); 68extern void vfree (vchar_t *); 69extern vchar_t *vdup (vchar_t *); 70extern vchar_t *vnew (u_int8_t *, size_t); 71 72#endif /* _VMBUF_H */ 73