64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/* $KAME: vmbuf.h,v 1.7 2000/10/04 17:41:05 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* bp v
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* v v
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* ........................
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* <--------------> l
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* <----------------------> bl
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*/
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typedef struct _vchar_t_ {
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#if notyet
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u_int32_t t; /* type of the value */
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vchar_t *n; /* next vchar_t buffer */
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size_t bl; /* length of the buffer */
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caddr_t bp; /* pointer to the buffer */
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#endif
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size_t l; /* length of the value */
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caddr_t v; /* place holder to the pointer to the value */
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} vchar_t;
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#define VREALLOC(ptr, size) ((ptr) = vrealloc((ptr), (size)))
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#define VPTRINIT(p) \
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do { \
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if (p) { \
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vfree(p); \
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(p) = NULL; \
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} \
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} while(0);
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extern vchar_t *vmalloc __P((size_t));
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extern vchar_t *vrealloc __P((vchar_t *, size_t));
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extern void vfree __P((vchar_t *));
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extern vchar_t *vdup __P((vchar_t *));
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