LCOM1920-T02G10

/*        $NetBSD: msgbuf.h,v 1.15 2007/11/07 00:19:08 ad Exp $        */

/*

 * Copyright (c) 1981, 1984, 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. 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.

 *

 *        @(#)msgbuf.h        8.1 (Berkeley) 6/2/93

 */

#ifndef _SYS_MSGBUF_H_

#define _SYS_MSGBUF_H_

struct        kern_msgbuf {

#define        MSG_MAGIC        0x063061

        long        msg_magic;

        long        msg_bufx;                /* write pointer */

        long        msg_bufr;                /* read pointer */

        long        msg_bufs;                /* real msg_bufc size (bytes) */

        char        msg_bufc[1];                /* buffer */

};

#ifdef _KERNEL

extern int        msgbufmapped;                /* is the message buffer mapped */

extern int        msgbufenabled;                /* is logging to the buffer enabled */

extern struct        kern_msgbuf *msgbufp;        /* the mapped buffer, itself. */

void        initmsgbuf(void *, size_t);

void        loginit(void);

void        logputchar(int);

#endif

#endif /* !_SYS_MSGBUF_H_ */