diff options
Diffstat (limited to 'sys/sys/msgbuf.h')
| -rw-r--r-- | sys/sys/msgbuf.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/sys/sys/msgbuf.h b/sys/sys/msgbuf.h new file mode 100644 index 0000000..3a53a5a --- /dev/null +++ b/sys/sys/msgbuf.h @@ -0,0 +1,53 @@ +/* $OpenBSD: msgbuf.h,v 1.11 2016/06/23 13:15:21 bluhm Exp $ */ +/* $NetBSD: msgbuf.h,v 1.8 1995/03/26 20:24:27 jtc 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 + */ + +struct 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) */ + long msg_bufl; /* # chars, <= msg_bufs */ + long msg_bufd; /* number of dropped bytes */ + char msg_bufc[1]; /* buffer */ +}; +#ifdef _KERNEL +#define CONSBUFSIZE (16 * 1024) /* console message buffer size */ +extern struct msgbuf *msgbufp; +extern struct msgbuf *consbufp; + +void initmsgbuf(caddr_t buf, size_t bufsize); +void initconsbuf(void); +void msgbuf_putchar(struct msgbuf *, const char c); +#endif |