include/libuutil_impl.h

   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 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _LIBUUTIL_IMPL_H
  28 #define _LIBUUTIL_IMPL_H
  29
  30
  31
  32 #include <libuutil.h>
  33 #include <pthread.h>
  34
  35 #include <sys/avl_impl.h>
  36 #include <sys/byteorder.h>
  37
  38 #ifdef  __cplusplus
  39 extern "C" {
  40 #endif
  41
  42 void uu_set_error(uint_t);
  43
  44
  45 __attribute__((format(printf, 1, 2), __noreturn__))
  46 void uu_panic(const char *format, ...);
  47
  48
  49 /*
  50  * uu_list structures
  51  */
  52 typedef struct uu_list_node_impl {
  53         struct uu_list_node_impl *uln_next;
  54         struct uu_list_node_impl *uln_prev;
  55 } uu_list_node_impl_t;
  56
  57 struct uu_list_walk {
  58         uu_list_walk_t  *ulw_next;
  59         uu_list_walk_t  *ulw_prev;
  60
  61         uu_list_t       *ulw_list;
  62         int8_t          ulw_dir;
  63         uint8_t         ulw_robust;
  64         uu_list_node_impl_t *ulw_next_result;
  65 };
  66
  67 struct uu_list {
  68         uu_list_t       *ul_next;
  69         uu_list_t       *ul_prev;
  70
  71         uu_list_pool_t  *ul_pool;
  72         void            *ul_parent;
  73         size_t          ul_offset;
  74         size_t          ul_numnodes;
  75         uint8_t         ul_debug;
  76         uint8_t         ul_sorted;
  77         uint8_t         ul_index;       /* mark for uu_list_index_ts */
  78
  79         uu_list_node_impl_t ul_null_node;
  80         uu_list_walk_t  ul_null_walk;   /* for robust walkers */
  81 };
  82
  83 #define UU_LIST_POOL_MAXNAME    64
  84
  85 struct uu_list_pool {
  86         uu_list_pool_t  *ulp_next;
  87         uu_list_pool_t  *ulp_prev;
  88
  89         char            ulp_name[UU_LIST_POOL_MAXNAME];
  90         size_t          ulp_nodeoffset;
  91         size_t          ulp_objsize;
  92         uu_compare_fn_t *ulp_cmp;
  93         uint8_t         ulp_debug;
  94         uint8_t         ulp_last_index;
  95         pthread_mutex_t ulp_lock;               /* protects null_list */
  96         uu_list_t       ulp_null_list;
  97 };
  98
  99 /*
 100  * uu_avl structures
 101  */
 102 typedef struct avl_node         uu_avl_node_impl_t;
 103
 104 struct uu_avl_walk {
 105         uu_avl_walk_t   *uaw_next;
 106         uu_avl_walk_t   *uaw_prev;
 107
 108         uu_avl_t        *uaw_avl;
 109         void            *uaw_next_result;
 110         int8_t          uaw_dir;
 111         uint8_t         uaw_robust;
 112 };
 113
 114 struct uu_avl {
 115         uu_avl_t        *ua_next;
 116         uu_avl_t        *ua_prev;
 117
 118         uu_avl_pool_t   *ua_pool;
 119         void            *ua_parent;
 120         uint8_t         ua_debug;
 121         uint8_t         ua_index;       /* mark for uu_avl_index_ts */
 122
 123         struct avl_tree ua_tree;
 124         uu_avl_walk_t   ua_null_walk;
 125 };
 126
 127 #define UU_AVL_POOL_MAXNAME     64
 128
 129 struct uu_avl_pool {
 130         uu_avl_pool_t   *uap_next;
 131         uu_avl_pool_t   *uap_prev;
 132
 133         char            uap_name[UU_AVL_POOL_MAXNAME];
 134         size_t          uap_nodeoffset;
 135         size_t          uap_objsize;
 136         uu_compare_fn_t *uap_cmp;
 137         uint8_t         uap_debug;
 138         uint8_t         uap_last_index;
 139         pthread_mutex_t uap_lock;               /* protects null_avl */
 140         uu_avl_t        uap_null_avl;
 141 };
 142
 143 /*
 144  * atfork() handlers
 145  */
 146 void uu_avl_lockup(void);
 147 void uu_avl_release(void);
 148
 149 void uu_list_lockup(void);
 150 void uu_list_release(void);
 151
 152 #ifdef  __cplusplus
 153 }
 154 #endif
 155
 156 #endif  /* _LIBUUTIL_IMPL_H */