xref: /titanic_50/usr/src/uts/common/sys/nvpair_impl.h (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #ifndef	_NVPAIR_IMPL_H
28*7c478bd9Sstevel@tonic-gate #define	_NVPAIR_IMPL_H
29*7c478bd9Sstevel@tonic-gate 
30*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
31*7c478bd9Sstevel@tonic-gate 
32*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus
33*7c478bd9Sstevel@tonic-gate extern "C" {
34*7c478bd9Sstevel@tonic-gate #endif
35*7c478bd9Sstevel@tonic-gate 
36*7c478bd9Sstevel@tonic-gate #include <sys/nvpair.h>
37*7c478bd9Sstevel@tonic-gate 
38*7c478bd9Sstevel@tonic-gate /*
39*7c478bd9Sstevel@tonic-gate  * The structures here provided for information and debugging purposes only
40*7c478bd9Sstevel@tonic-gate  * may be changed in the future.
41*7c478bd9Sstevel@tonic-gate  */
42*7c478bd9Sstevel@tonic-gate 
43*7c478bd9Sstevel@tonic-gate /*
44*7c478bd9Sstevel@tonic-gate  * implementation linked list for pre-packed data
45*7c478bd9Sstevel@tonic-gate  */
46*7c478bd9Sstevel@tonic-gate typedef struct i_nvp i_nvp_t;
47*7c478bd9Sstevel@tonic-gate 
48*7c478bd9Sstevel@tonic-gate struct i_nvp {
49*7c478bd9Sstevel@tonic-gate 	union {
50*7c478bd9Sstevel@tonic-gate 		uint64_t	_nvi_align;	/* ensure alignment */
51*7c478bd9Sstevel@tonic-gate 		struct {
52*7c478bd9Sstevel@tonic-gate 			i_nvp_t	*_nvi_next;	/* pointer to next nvpair */
53*7c478bd9Sstevel@tonic-gate 			i_nvp_t	*_nvi_prev;	/* pointer to prev nvpair */
54*7c478bd9Sstevel@tonic-gate 		} _nvi;
55*7c478bd9Sstevel@tonic-gate 	} _nvi_un;
56*7c478bd9Sstevel@tonic-gate 	nvpair_t nvi_nvp;			/* nvpair */
57*7c478bd9Sstevel@tonic-gate };
58*7c478bd9Sstevel@tonic-gate #define	nvi_next	_nvi_un._nvi._nvi_next
59*7c478bd9Sstevel@tonic-gate #define	nvi_prev	_nvi_un._nvi._nvi_prev
60*7c478bd9Sstevel@tonic-gate 
61*7c478bd9Sstevel@tonic-gate typedef struct {
62*7c478bd9Sstevel@tonic-gate 	i_nvp_t		*nvp_list;	/* linked list of nvpairs */
63*7c478bd9Sstevel@tonic-gate 	i_nvp_t		*nvp_last;	/* last nvpair */
64*7c478bd9Sstevel@tonic-gate 	i_nvp_t		*nvp_curr;	/* current walker nvpair */
65*7c478bd9Sstevel@tonic-gate 	nv_alloc_t	*nvp_nva;	/* pluggable allocator */
66*7c478bd9Sstevel@tonic-gate 	uint32_t	nvp_stat;	/* internal state */
67*7c478bd9Sstevel@tonic-gate } nvpriv_t;
68*7c478bd9Sstevel@tonic-gate 
69*7c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
70*7c478bd9Sstevel@tonic-gate }
71*7c478bd9Sstevel@tonic-gate #endif
72*7c478bd9Sstevel@tonic-gate 
73*7c478bd9Sstevel@tonic-gate #endif	/* _NVPAIR_IMPL_H */
74