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