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 http://www.opensolaris.org/os/licensing.
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 *	db_vers_c.x
24 *
25 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
26 * Use is subject to license terms.
27 */
28
29%#pragma ident	"%Z%%M%	%I%	%E% SMI"
30
31#if RPC_HDR
32%#ifndef _DB_VERS_H
33%#define _DB_VERS_H
34#endif /* RPC_HDR */
35
36%/* 'vers' is the version identifier.  */
37
38%
39%#include "nisdb_rw.h"
40%
41#if RPC_HDR || RPC_XDR
42#ifdef USINGC
43struct vers {
44	u_int vers_high;
45	u_int vers_low;
46	u_int time_sec;
47	u_int time_usec;
48	__nisdb_rwlock_t vers_rwlock;
49};
50#endif /* USINGC */
51#endif /* RPC_HDR */
52
53#ifndef USINGC
54#ifdef RPC_HDR
55%class vers {
56%  unsigned int vers_high;     /* major version number, tracks checkpoints */
57%  unsigned int vers_low;      /* minor version number, tracks updates. */
58%  unsigned int time_sec;      /* time stamp */
59%  unsigned int time_usec;
60%  STRUCTRWLOCK(vers);
61% public:
62%/* No argument constructor.  All entries initialized to zero. */
63%  vers() {
64%	vers_high = vers_low = time_sec = time_usec = 0;
65%	INITRW(vers);
66%  }
67%
68%/* Constructor that makes copy of 'other'. */
69%  vers( vers *other );
70%
71%/* Constructor:  create version with specified version numbers */
72%  vers( unsigned int high, unsigned int low) {
73%	vers_high = high; vers_low = low; time_sec = time_usec = 0;
74%	INITRW(vers);
75%  }
76%
77%/* Creates new 'vers' with next higher minor version.
78%   If minor version exceeds MAXLOW, bump up major version instead.
79%   Set timestamp to that of the current time. */
80%  vers* nextminor();
81%
82%/* Creates new 'vers' with next higher major version.
83%   Set timestamp to that of the current time. */
84%  vers* nextmajor();
85%
86%/* Set this 'vers' to hold values found in 'others'. */
87%  void assign( vers *other );
88%
89%/* Predicate indicating whether this vers is earlier than 'other' in
90%   terms of version numbers. */
91%  bool_t earlier_than( vers *other );
92%
93%/* Print the value of this 'vers' to specified file. */
94%  void print( FILE *file );
95%
96%/* Zero out this vers. */
97%  void zero();
98%
99%/* Predicate indicating whether this vers is equal to 'other'. */
100%  bool_t  equal( vers *other);
101%
102%/* Locking methods */
103%
104%  int acqexcl(void) {
105%	return (WLOCK(vers));
106%  }
107%
108%  int relexcl(void) {
109%	return (WULOCK(vers));
110%  }
111%
112%  int acqnonexcl(void) {
113%	return (RLOCK(vers));
114%  }
115%
116%  int relnonexcl(void) {
117%	return (RULOCK(vers));
118%  }
119%};
120#endif /* RPC_HDR */
121#endif /* USINGC */
122
123#if RPC_HDR
124%#endif /* VERS_H */
125#endif /* RPC_HDR */
126