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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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _NIS_HASHITEM_H
#define _NIS_HASHITEM_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <pthread.h>
#include <rpcsvc/nis.h>
#include "nisdb_rw.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Private versions of the various NIS_HASH_ITEM functions */
typedef struct __nis_item_item {
pthread_cond_t lock;
nis_name name;
int keychain;
uint32_t readers;
pthread_t last_reader_id;
uint32_t writer;
pthread_t writer_id;
struct __nis_item_item *next;
struct __nis_item_item *prv_item;
struct __nis_item_item *nxt_item;
} __nis_hash_item_mt;
typedef struct {
pthread_mutex_t lock;
pthread_cond_t cond;
pthread_mutex_t traverser_id_lock;
/*
* Protects 'traversed'
* and 'traverser_id'.
*/
uint32_t traversed;
pthread_t traverser_id;
uint32_t locked_items;
__nis_hash_item_mt *keys[64];
__nis_hash_item_mt *first;
void (*destroyItem)(void *);
} __nis_hash_table_mt;
#define NIS_HASH_TABLE_MT_INIT { \
PTHREAD_MUTEX_INITIALIZER, \
{0}, \
PTHREAD_MUTEX_INITIALIZER \
/* Zero is fine for the rest */ \
}
#define LOCK_LIST(list, msg) (void) __nis_lock_hash_table(list, 1, msg)
#define ULOCK_LIST(list, msg) (void) __nis_ulock_hash_table(list, 1, msg)
extern void __nis_init_hash_table(__nis_hash_table_mt *, void (*)(void *));
extern int __nis_lock_hash_table(__nis_hash_table_mt *, int, char *);
extern int __nis_ulock_hash_table(__nis_hash_table_mt *, int, char *);
extern int __nis_insert_item_mt(void *, __nis_hash_table_mt *, int);
extern void __nis_insert_name_mt(nis_name, __nis_hash_table_mt *);
extern void *__nis_find_item_mt(nis_name, __nis_hash_table_mt *, int,
int *);
extern void *__nis_pop_item_mt(__nis_hash_table_mt *);
extern void *__nis_remove_item_mt(nis_name, __nis_hash_table_mt *);
extern int __nis_release_item(void *, __nis_hash_table_mt *, int);
extern int __nis_item_access(void *);
extern void __nis_scan_table_mt(__nis_hash_table_mt *,
bool_t (*)(__nis_hash_item_mt *, void *), void *);
/* Define-magic */
#define NIS_HASH_ITEM __nis_hash_item_mt
#define NIS_HASH_TABLE __nis_hash_table_mt
#define nis_insert_item(i, t) __nis_insert_item_mt(i, t, -1)
#define nis_insert_item_rw(i, t, rw) __nis_insert_item_mt(i, t, rw)
#define nis_insert_name(n, t) __nis_insert_name_mt(n, t)
#define nis_find_item(i, t) __nis_find_item_mt(i, t, -1, 0)
#define nis_find_item_rw(i, t, rw) __nis_find_item_mt(i, t, rw, 0)
#define nis_pop_item __nis_pop_item_mt
#define nis_remove_item __nis_remove_item_mt
#define nis_scan_table __nis_scan_table_mt
#define MT_LOCK_TYPE(type) (type < 0)?"W":(type > 0)?"R":"N"
#ifdef NIS_MT_DEBUG
#define MT_LOG(condition, syslogarg) if (condition) syslog ## syslogarg
#else
#define MT_LOG(condition, syslogarg)
#endif /* NIS_MT_DEBUG */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _NIS_HASHITEM_H */
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