strsun.h revision 898:64b2a371a6bd 
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, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef	_SYS_STRSUN_H
28#define	_SYS_STRSUN_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include <sys/stream.h>
33#include <sys/types.h>
34
35#ifdef	__cplusplus
36extern "C" {
37#endif
38
39/*
40 * Solaris DDI STREAMS utility routines.
41 *
42 * See the appropriate section 9F manpage for documentation.
43 */
44
45#define	DB_BASE(mp)	((mp)->b_datap->db_base)
46#define	DB_LIM(mp)	((mp)->b_datap->db_lim)
47#define	DB_REF(mp)	((mp)->b_datap->db_ref)
48#define	DB_TYPE(mp)	((mp)->b_datap->db_type)
49#define	DB_FLAGS(mp)	((mp)->b_datap->db_flags)
50
51#define	MBLKL(mp)	((mp)->b_wptr - (mp)->b_rptr)
52#define	MBLKSIZE(mp)	((mp)->b_datap->db_lim - (mp)->b_datap->db_base)
53#define	MBLKHEAD(mp)	((mp)->b_rptr - (mp)->b_datap->db_base)
54#define	MBLKTAIL(mp)	((mp)->b_datap->db_lim - (mp)->b_wptr)
55#define	MBLKIN(mp, off, len) (((off) <= MBLKL(mp)) && \
56			(((mp)->b_rptr + (off) + (len)) <= (mp)->b_wptr))
57
58#ifdef	_KERNEL
59extern void	mcopyin(mblk_t *, void *, size_t, void *);
60extern void	mcopyout(mblk_t *, void *, size_t, void *, mblk_t *);
61extern void	merror(queue_t *, mblk_t *, int);
62extern void	mioc2ack(mblk_t *, mblk_t *, size_t, int);
63extern void	miocack(queue_t *, mblk_t *, int, int);
64extern void	miocnak(queue_t *, mblk_t *, int, int);
65extern int	miocpullup(mblk_t *, size_t);
66extern mblk_t	*mexchange(queue_t *, mblk_t *, size_t, uchar_t, int32_t);
67extern size_t	msgsize(mblk_t *);
68extern void	mcopymsg(mblk_t *, void *);
69
70#endif	/* _KERNEL */
71
72#ifdef	__cplusplus
73}
74#endif
75
76#endif	/* _SYS_STRSUN_H */
77