1 // SPDX-License-Identifier: CDDL-1.0 2 /* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License, Version 1.0 only 7 * (the "License"). You may not use this file except in compliance 8 * with the License. 9 * 10 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 11 * or https://opensource.org/licenses/CDDL-1.0. 12 * See the License for the specific language governing permissions 13 * and limitations under the License. 14 * 15 * When distributing Covered Code, include this CDDL HEADER in each 16 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 17 * If applicable, add the following below this CDDL HEADER, with the 18 * fields enclosed by brackets "[]" replaced with your own identifying 19 * information: Portions Copyright [yyyy] [name of copyright owner] 20 * 21 * CDDL HEADER END 22 */ 23 /* 24 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 /* 29 * Copyright (c) 2017 by Delphix. All rights reserved. 30 */ 31 32 #ifndef _NVPAIR_IMPL_H 33 #define _NVPAIR_IMPL_H 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 #include <sys/nvpair.h> 40 41 /* 42 * The structures here provided for information and debugging purposes only 43 * may be changed in the future. 44 */ 45 46 /* 47 * implementation linked list for pre-packed data 48 */ 49 typedef struct i_nvp i_nvp_t; 50 51 struct i_nvp { 52 union { 53 /* ensure alignment */ 54 uint64_t _nvi_align; 55 56 struct { 57 /* pointer to next nvpair */ 58 i_nvp_t *_nvi_next; 59 60 /* pointer to prev nvpair */ 61 i_nvp_t *_nvi_prev; 62 63 /* next pair in table bucket */ 64 i_nvp_t *_nvi_hashtable_next; 65 } _nvi; 66 } _nvi_un; 67 68 /* nvpair */ 69 nvpair_t nvi_nvp; 70 }; 71 #define nvi_next _nvi_un._nvi._nvi_next 72 #define nvi_prev _nvi_un._nvi._nvi_prev 73 #define nvi_hashtable_next _nvi_un._nvi._nvi_hashtable_next 74 75 typedef struct { 76 i_nvp_t *nvp_list; /* linked list of nvpairs */ 77 i_nvp_t *nvp_last; /* last nvpair */ 78 const i_nvp_t *nvp_curr; /* current walker nvpair */ 79 nv_alloc_t *nvp_nva; /* pluggable allocator */ 80 uint32_t nvp_stat; /* internal state */ 81 82 i_nvp_t **nvp_hashtable; /* table of entries used for lookup */ 83 uint32_t nvp_nbuckets; /* # of buckets in hash table */ 84 uint32_t nvp_nentries; /* # of entries in hash table */ 85 } nvpriv_t; 86 87 #ifdef __cplusplus 88 } 89 #endif 90 91 #endif /* _NVPAIR_IMPL_H */ 92