strsun.h revision 3340:04f89288c276 
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#ifndef	_SYS_STRSUN_H
27#define	_SYS_STRSUN_H
28
29#pragma ident	"%Z%%M%	%I%	%E% SMI"
30
31#include <sys/stream.h>
32#include <sys/types.h>
33
34#ifdef	__cplusplus
35extern "C" {
36#endif
37
38/*
39 * Solaris DDI STREAMS utility routines.
40 *
41 * See the appropriate section 9F manpage for documentation.
42 */
43
44#define	DB_BASE(mp)	((mp)->b_datap->db_base)
45#define	DB_LIM(mp)	((mp)->b_datap->db_lim)
46#define	DB_REF(mp)	((mp)->b_datap->db_ref)
47#define	DB_TYPE(mp)	((mp)->b_datap->db_type)
48#define	DB_FLAGS(mp)	((mp)->b_datap->db_flags)
49
50#define	MBLKL(mp)	((mp)->b_wptr - (mp)->b_rptr)
51#define	MBLKSIZE(mp)	((mp)->b_datap->db_lim - (mp)->b_datap->db_base)
52#define	MBLKHEAD(mp)	((mp)->b_rptr - (mp)->b_datap->db_base)
53#define	MBLKTAIL(mp)	((mp)->b_datap->db_lim - (mp)->b_wptr)
54#define	MBLKIN(mp, off, len) (((off) <= MBLKL(mp)) && \
55			(((mp)->b_rptr + (off) + (len)) <= (mp)->b_wptr))
56
57#ifdef	_KERNEL
58extern void	mcopyin(mblk_t *, void *, size_t, void *);
59extern void	mcopyout(mblk_t *, void *, size_t, void *, mblk_t *);
60extern void	merror(queue_t *, mblk_t *, int);
61extern void	mioc2ack(mblk_t *, mblk_t *, size_t, int);
62extern void	miocack(queue_t *, mblk_t *, int, int);
63extern void	miocnak(queue_t *, mblk_t *, int, int);
64extern int	miocpullup(mblk_t *, size_t);
65extern mblk_t	*mexchange(queue_t *, mblk_t *, size_t, uchar_t, int32_t);
66extern size_t	msgsize(mblk_t *);
67extern void	mcopymsg(mblk_t *, void *);
68
69#endif	/* _KERNEL */
70
71#ifdef	__cplusplus
72}
73#endif
74
75#endif	/* _SYS_STRSUN_H */
76