xref: /onnv-gate/usr/src/uts/common/sys/dktp/queue.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #ifndef _SYS_DKTP_QUEUE_H
28*0Sstevel@tonic-gate #define	_SYS_DKTP_QUEUE_H
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate #ifdef	__cplusplus
33*0Sstevel@tonic-gate extern "C" {
34*0Sstevel@tonic-gate #endif
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate struct	que_obj {
37*0Sstevel@tonic-gate 	opaque_t		que_data;
38*0Sstevel@tonic-gate 	struct que_objops	*que_ops;
39*0Sstevel@tonic-gate };
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate struct	que_objops {
42*0Sstevel@tonic-gate 	int	(*que_init)(struct que_data *, void *);
43*0Sstevel@tonic-gate 	int	(*que_free)(struct que_obj *);
44*0Sstevel@tonic-gate 	int	(*que_ins)(struct que_data *, struct buf *);
45*0Sstevel@tonic-gate 	struct buf *(*que_del)(struct que_data *);
46*0Sstevel@tonic-gate 	void	*que_res[2];
47*0Sstevel@tonic-gate };
48*0Sstevel@tonic-gate 
49*0Sstevel@tonic-gate #define	QUE_INIT(X, lkarg) (*((struct que_obj *)(X))->que_ops->que_init) \
50*0Sstevel@tonic-gate 	(((struct que_obj *)(X))->que_data, (lkarg))
51*0Sstevel@tonic-gate #define	QUE_FREE(X) (*((struct que_obj *)(X))->que_ops->que_free) ((X))
52*0Sstevel@tonic-gate #define	QUE_ADD(X, bp) (*((struct que_obj *)(X))->que_ops->que_ins) \
53*0Sstevel@tonic-gate 	(((struct que_obj *)(X))->que_data, (bp))
54*0Sstevel@tonic-gate #define	QUE_DEL(X) (*((struct que_obj *)(X))->que_ops->que_del) \
55*0Sstevel@tonic-gate 	(((struct que_obj *)(X))->que_data)
56*0Sstevel@tonic-gate 
57*0Sstevel@tonic-gate #ifdef	__cplusplus
58*0Sstevel@tonic-gate }
59*0Sstevel@tonic-gate #endif
60*0Sstevel@tonic-gate 
61*0Sstevel@tonic-gate #endif	/* _SYS_DKTP_QUEUE_H */
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