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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _LIBUUTIL_IMPL_H
#define _LIBUUTIL_IMPL_H
#include <libuutil.h>
#include <pthread.h>
#include <sys/avl_impl.h>
#include <sys/byteorder.h>
#ifdef __cplusplus
extern "C" {
#endif
void uu_set_error(uint_t);
/*PRINTFLIKE1*/
void uu_panic(const char *format, ...);
struct uu_dprintf {
char *uud_name;
uu_dprintf_severity_t uud_severity;
uint_t uud_flags;
};
/*
* For debugging purposes, libuutil keeps around linked lists of all uu_lists
* and uu_avls, along with pointers to their parents. These can cause false
* negatives when looking for memory leaks, so we encode the pointers by
* storing them with swapped endianness; this is not perfect, but it's about
* the best we can do without wasting a lot of space.
*/
#ifdef _LP64
#define UU_PTR_ENCODE(ptr) BSWAP_64((uintptr_t)(void *)(ptr))
#else
#define UU_PTR_ENCODE(ptr) BSWAP_32((uintptr_t)(void *)(ptr))
#endif
#define UU_PTR_DECODE(ptr) ((void *)UU_PTR_ENCODE(ptr))
/*
* uu_list structures
*/
typedef struct uu_list_node_impl {
struct uu_list_node_impl *uln_next;
struct uu_list_node_impl *uln_prev;
} uu_list_node_impl_t;
struct uu_list_walk {
uu_list_walk_t *ulw_next;
uu_list_walk_t *ulw_prev;
uu_list_t *ulw_list;
int8_t ulw_dir;
uint8_t ulw_robust;
uu_list_node_impl_t *ulw_next_result;
};
struct uu_list {
uintptr_t ul_next_enc;
uintptr_t ul_prev_enc;
uu_list_pool_t *ul_pool;
uintptr_t ul_parent_enc; /* encoded parent pointer */
size_t ul_offset;
size_t ul_numnodes;
uint8_t ul_debug;
uint8_t ul_sorted;
uint8_t ul_index; /* mark for uu_list_index_ts */
uu_list_node_impl_t ul_null_node;
uu_list_walk_t ul_null_walk; /* for robust walkers */
};
#define UU_LIST_PTR(ptr) ((uu_list_t *)UU_PTR_DECODE(ptr))
#define UU_LIST_POOL_MAXNAME 64
struct uu_list_pool {
uu_list_pool_t *ulp_next;
uu_list_pool_t *ulp_prev;
char ulp_name[UU_LIST_POOL_MAXNAME];
size_t ulp_nodeoffset;
size_t ulp_objsize;
uu_compare_fn_t *ulp_cmp;
uint8_t ulp_debug;
uint8_t ulp_last_index;
pthread_mutex_t ulp_lock; /* protects null_list */
uu_list_t ulp_null_list;
};
/*
* uu_avl structures
*/
typedef struct avl_node uu_avl_node_impl_t;
struct uu_avl_walk {
uu_avl_walk_t *uaw_next;
uu_avl_walk_t *uaw_prev;
uu_avl_t *uaw_avl;
void *uaw_next_result;
int8_t uaw_dir;
uint8_t uaw_robust;
};
struct uu_avl {
uintptr_t ua_next_enc;
uintptr_t ua_prev_enc;
uu_avl_pool_t *ua_pool;
uintptr_t ua_parent_enc;
uint8_t ua_debug;
uint8_t ua_index; /* mark for uu_avl_index_ts */
struct avl_tree ua_tree;
uu_avl_walk_t ua_null_walk;
};
#define UU_AVL_PTR(x) ((uu_avl_t *)UU_PTR_DECODE(x))
#define UU_AVL_POOL_MAXNAME 64
struct uu_avl_pool {
uu_avl_pool_t *uap_next;
uu_avl_pool_t *uap_prev;
char uap_name[UU_AVL_POOL_MAXNAME];
size_t uap_nodeoffset;
size_t uap_objsize;
uu_compare_fn_t *uap_cmp;
uint8_t uap_debug;
uint8_t uap_last_index;
pthread_mutex_t uap_lock; /* protects null_avl */
uu_avl_t uap_null_avl;
};
/*
* atfork() handlers
*/
void uu_avl_lockup(void);
void uu_avl_release(void);
void uu_list_lockup(void);
void uu_list_release(void);
#ifdef __cplusplus
}
#endif
#endif /* _LIBUUTIL_IMPL_H */
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