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clist.h
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clist.h
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/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)clist.h 8.1 (Berkeley) 6/4/93
* $FreeBSD: src/sys/sys/clist.h,v 1.10 1999/12/29 04:24:38 peter Exp $
* $DragonFly: src/sys/sys/clist.h,v 1.5 2006/05/20 02:42:13 dillon Exp $
*/
#ifndef _SYS_CLIST_H_
#define _SYS_CLIST_H_
#ifndef _SYS_TYPES_H_
#include <sys/types.h>
#endif
#define CBLOCK 128 /* Clist block size, must be a power of 2. */
#define CBQSIZE (CBLOCK/NBBY) /* Quote bytes/cblock - can do better. */
/* Data chars/clist. */
#define CBSIZE (CBLOCK - sizeof(struct cblockhead) - CBQSIZE)
#define CROUND (CBLOCK - 1) /* Clist rounding. */
struct cblockhead {
struct cblock *ch_next;
int ch_magic;
};
#define CLIST_MAGIC_FREE 0x434c0102
#define CLIST_MAGIC_USED 0x434c8182
struct cblock {
struct cblockhead c_head; /* header */
unsigned char c_quote[CBQSIZE]; /* quoted characters */
unsigned char c_info[CBSIZE]; /* characters */
};
#ifdef _KERNEL
extern struct cblock *cfree;
extern int cfreecount;
#endif
#endif