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 2015 Gary Mills
  26  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29 
  30 #if RPC_XDR
  31 %#include "ldap_xdr.h"
  32 #endif /* RPC_XDR */
  33 
  34 #if RPC_HDR
  35 %#ifndef _DB_VERS_H
  36 %#define _DB_VERS_H
  37 #endif /* RPC_HDR */
  38 
  39 %/* 'vers' is the version identifier.  */
  40 
  41 %
  42 %#include "nisdb_rw.h"
  43 %
  44 #if RPC_HDR || RPC_XDR
  45 #ifdef USINGC
  46 struct vers {
  47         u_int vers_high;
  48         u_int vers_low;
  49         u_int time_sec;
  50         u_int time_usec;
  51         __nisdb_rwlock_t vers_rwlock;
  52 };
  53 #endif /* USINGC */
  54 #endif /* RPC_HDR */
  55 
  56 #ifndef USINGC
  57 #ifdef RPC_HDR
  58 %class vers {
  59 %  unsigned int vers_high;     /* major version number, tracks checkpoints */
  60 %  unsigned int vers_low;      /* minor version number, tracks updates. */
  61 %  unsigned int time_sec;      /* time stamp */
  62 %  unsigned int time_usec;
  63 %  STRUCTRWLOCK(vers);
  64 % public:
  65 %/* No argument constructor.  All entries initialized to zero. */
  66 %  vers() {
  67 %       vers_high = vers_low = time_sec = time_usec = 0;
  68 %       INITRW(vers);
  69 %  }
  70 %
  71 %/* Constructor that makes copy of 'other'. */
  72 %  vers( vers *other );
  73 %
  74 %/* Constructor:  create version with specified version numbers */
  75 %  vers( unsigned int high, unsigned int low) {
  76 %       vers_high = high; vers_low = low; time_sec = time_usec = 0;
  77 %       INITRW(vers);
  78 %  } 
  79 %
  80 %/* Creates new 'vers' with next higher minor version.
  81 %   If minor version exceeds MAXLOW, bump up major version instead.
  82 %   Set timestamp to that of the current time. */
  83 %  vers* nextminor();
  84 %
  85 %/* Creates new 'vers' with next higher major version.
  86 %   Set timestamp to that of the current time. */
  87 %  vers* nextmajor();
  88 %
  89 %/* Set this 'vers' to hold values found in 'others'. */
  90 %  void assign( vers *other );
  91 %
  92 %/* Predicate indicating whether this vers is earlier than 'other' in
  93 %   terms of version numbers. */
  94 %  bool_t earlier_than( vers *other );
  95 %
  96 %/* Print the value of this 'vers' to specified file. */
  97 %  void print( FILE *file );
  98 %
  99 %/* Zero out this vers. */
 100 %  void zero();
 101 %
 102 %/* Predicate indicating whether this vers is equal to 'other'. */
 103 %  bool_t  equal( vers *other);
 104 %
 105 %/* Locking methods */
 106 %
 107 %  int acqexcl(void) {
 108 %       return (WLOCK(vers));
 109 %  }
 110 %
 111 %  int relexcl(void) {
 112 %       return (WULOCK(vers));
 113 %  }
 114 %
 115 %  int acqnonexcl(void) {
 116 %       return (RLOCK(vers));
 117 %  }
 118 %
 119 %  int relnonexcl(void) {
 120 %       return (RULOCK(vers));
 121 %  }
 122 %};
 123 #endif /* RPC_HDR */
 124 #endif /* USINGC */
 125 
 126 #if RPC_HDR
 127 %#endif /* VERS_H */
 128 #endif /* RPC_HDR */