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 2008 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 #include <sys/stream.h> 30 #include <sys/types.h> 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * Solaris DDI STREAMS utility routines. 38 * 39 * See the appropriate section 9F manpage for documentation. 40 */ 41 42 #define DB_BASE(mp) ((mp)->b_datap->db_base) 43 #define DB_LIM(mp) ((mp)->b_datap->db_lim) 44 #define DB_REF(mp) ((mp)->b_datap->db_ref) 45 #define DB_TYPE(mp) ((mp)->b_datap->db_type) 46 #define DB_FLAGS(mp) ((mp)->b_datap->db_flags) 47 48 #define _PTRDIFF(p1, p2) ((intptr_t)((uintptr_t)(p1) - (uintptr_t)(p2))) 49 #define MBLKL(mp) _PTRDIFF((mp)->b_wptr, (mp)->b_rptr) 50 #define MBLKSIZE(mp) _PTRDIFF(DB_LIM(mp), DB_BASE(mp)) 51 #define MBLKHEAD(mp) _PTRDIFF((mp)->b_rptr, DB_BASE(mp)) 52 #define MBLKTAIL(mp) _PTRDIFF(DB_LIM(mp), (mp)->b_wptr) 53 #define MBLKIN(mp, off, len) (((off) <= MBLKL(mp)) && \ 54 (((mp)->b_rptr + (off) + (len)) <= (mp)->b_wptr)) 55 56 #ifdef _KERNEL 57 extern void mcopyin(mblk_t *, void *, size_t, void *); 58 extern void mcopyout(mblk_t *, void *, size_t, void *, mblk_t *); 59 extern void merror(queue_t *, mblk_t *, int); 60 extern void mioc2ack(mblk_t *, mblk_t *, size_t, int); 61 extern void miocack(queue_t *, mblk_t *, int, int); 62 extern void miocnak(queue_t *, mblk_t *, int, int); 63 extern int miocpullup(mblk_t *, size_t); 64 extern mblk_t *mexchange(queue_t *, mblk_t *, size_t, uchar_t, int32_t); 65 extern size_t msgsize(mblk_t *); 66 extern void mcopymsg(mblk_t *, void *); 67 68 #endif /* _KERNEL */ 69 70 #ifdef __cplusplus 71 } 72 #endif 73 74 #endif /* _SYS_STRSUN_H */ 75