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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SIP_HASH_H 28 #define _SIP_HASH_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 #include <pthread.h> 35 36 /* A prime number */ 37 #define SIP_HASH_SZ 6037 38 39 #define SIP_DIGEST_TO_HASH(digest) \ 40 ((digest[0] + digest[1] + digest[2] + digest[3] + digest[4] + \ 41 digest[5] + digest[6] + digest[7]) % SIP_HASH_SZ) 42 43 /* An entry in the hash table, sip_obj is opaque */ 44 typedef struct sip_hash_obj_s { 45 void *sip_obj; 46 struct sip_hash_obj_s *next_obj; 47 struct sip_hash_obj_s *prev_obj; 48 } sip_hash_obj_t; 49 50 51 /* A hash list in the table */ 52 typedef struct sip_hash_s { 53 sip_hash_obj_t *hash_head; 54 sip_hash_obj_t *hash_tail; 55 int hash_count; 56 pthread_mutex_t sip_hash_mutex; 57 }sip_hash_t; 58 59 int sip_hash_add(sip_hash_t *, void *, int); 60 void *sip_hash_find(sip_hash_t *, void *, int, 61 boolean_t (*)(void *, void *)); 62 void sip_walk_hash(sip_hash_t *, void (*)(void *, void *), void *); 63 void sip_hash_delete(sip_hash_t *, void *, int, 64 boolean_t (*)(void *, void *, int *)); 65 void sip_hash_init(); 66 67 #ifdef __cplusplus 68 } 69 #endif 70 71 #endif /* _SIP_HASH_H */ 72