xref: /illumos-gate/usr/src/cmd/nscd/nscd_seqnum.c (revision 2a8bcb4e)
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  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include "nscd_db.h"
27 
28 static nscd_seq_num_t		acc_seq = 1;
29 static mutex_t			seq_mutex = DEFAULTMUTEX;
30 static nscd_cookie_num_t	cookie_num = 1234;
31 static mutex_t			cookie_mutex = DEFAULTMUTEX;
32 
33 nscd_seq_num_t
_nscd_get_seq_num()34 _nscd_get_seq_num()
35 {
36 	nscd_seq_num_t	seq_num;
37 
38 	(void) mutex_lock(&seq_mutex);
39 	seq_num = acc_seq;
40 	acc_seq++;
41 	(void) mutex_unlock(&seq_mutex);
42 
43 	return (seq_num);
44 }
45 
46 nscd_cookie_num_t
_nscd_get_cookie_num()47 _nscd_get_cookie_num()
48 {
49 	nscd_cookie_num_t	ret;
50 
51 	(void) mutex_lock(&cookie_mutex);
52 	ret = cookie_num;
53 	cookie_num++;
54 	(void) mutex_unlock(&cookie_mutex);
55 
56 	return (ret);
57 }
58