/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_STRSUN_H
#define _SYS_STRSUN_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/stream.h>
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Solaris DDI STREAMS utility routines.
*
* See the appropriate section 9F manpage for documentation.
*/
#define DB_BASE(mp) ((mp)->b_datap->db_base)
#define DB_LIM(mp) ((mp)->b_datap->db_lim)
#define DB_REF(mp) ((mp)->b_datap->db_ref)
#define DB_TYPE(mp) ((mp)->b_datap->db_type)
#define DB_FLAGS(mp) ((mp)->b_datap->db_flags)
#define _PTRDIFF(p1, p2) ((intptr_t)((uintptr_t)(p1) - (uintptr_t)(p2)))
#define MBLKL(mp) _PTRDIFF((mp)->b_wptr, (mp)->b_rptr)
#define MBLKSIZE(mp) _PTRDIFF(DB_LIM(mp), DB_BASE(mp))
#define MBLKHEAD(mp) _PTRDIFF((mp)->b_rptr, DB_BASE(mp))
#define MBLKTAIL(mp) _PTRDIFF(DB_LIM(mp), (mp)->b_wptr)
#define MBLKIN(mp, off, len) (((off) <= MBLKL(mp)) && \
(((mp)->b_rptr + (off) + (len)) <= (mp)->b_wptr))
#ifdef _KERNEL
extern void mcopyin(mblk_t *, void *, size_t, void *);
extern void mcopyout(mblk_t *, void *, size_t, void *, mblk_t *);
extern void merror(queue_t *, mblk_t *, int);
extern void mioc2ack(mblk_t *, mblk_t *, size_t, int);
extern void miocack(queue_t *, mblk_t *, int, int);
extern void miocnak(queue_t *, mblk_t *, int, int);
extern int miocpullup(mblk_t *, size_t);
extern mblk_t *mexchange(queue_t *, mblk_t *, size_t, uchar_t, int32_t);
extern size_t msgsize(mblk_t *);
extern void mcopymsg(mblk_t *, void *);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_STRSUN_H */