xref: /freebsd/contrib/kyua/store/metadata.hpp (revision b0d29bc47dba79f6f38e67eabadfb4b32ffd9390)
1*b0d29bc4SBrooks Davis // Copyright 2011 The Kyua Authors.
2*b0d29bc4SBrooks Davis // All rights reserved.
3*b0d29bc4SBrooks Davis //
4*b0d29bc4SBrooks Davis // Redistribution and use in source and binary forms, with or without
5*b0d29bc4SBrooks Davis // modification, are permitted provided that the following conditions are
6*b0d29bc4SBrooks Davis // met:
7*b0d29bc4SBrooks Davis //
8*b0d29bc4SBrooks Davis // * Redistributions of source code must retain the above copyright
9*b0d29bc4SBrooks Davis //   notice, this list of conditions and the following disclaimer.
10*b0d29bc4SBrooks Davis // * Redistributions in binary form must reproduce the above copyright
11*b0d29bc4SBrooks Davis //   notice, this list of conditions and the following disclaimer in the
12*b0d29bc4SBrooks Davis //   documentation and/or other materials provided with the distribution.
13*b0d29bc4SBrooks Davis // * Neither the name of Google Inc. nor the names of its contributors
14*b0d29bc4SBrooks Davis //   may be used to endorse or promote products derived from this software
15*b0d29bc4SBrooks Davis //   without specific prior written permission.
16*b0d29bc4SBrooks Davis //
17*b0d29bc4SBrooks Davis // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18*b0d29bc4SBrooks Davis // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19*b0d29bc4SBrooks Davis // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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23*b0d29bc4SBrooks Davis // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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25*b0d29bc4SBrooks Davis // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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28*b0d29bc4SBrooks Davis 
29*b0d29bc4SBrooks Davis /// \file store/metadata.hpp
30*b0d29bc4SBrooks Davis /// Representation of the database metadata.
31*b0d29bc4SBrooks Davis 
32*b0d29bc4SBrooks Davis #if !defined(STORE_METADATA_HPP)
33*b0d29bc4SBrooks Davis #define STORE_METADATA_HPP
34*b0d29bc4SBrooks Davis 
35*b0d29bc4SBrooks Davis #include "store/metadata_fwd.hpp"
36*b0d29bc4SBrooks Davis 
37*b0d29bc4SBrooks Davis extern "C" {
38*b0d29bc4SBrooks Davis #include <stdint.h>
39*b0d29bc4SBrooks Davis }
40*b0d29bc4SBrooks Davis 
41*b0d29bc4SBrooks Davis #include <cstddef>
42*b0d29bc4SBrooks Davis 
43*b0d29bc4SBrooks Davis #include "utils/sqlite/database_fwd.hpp"
44*b0d29bc4SBrooks Davis 
45*b0d29bc4SBrooks Davis namespace store {
46*b0d29bc4SBrooks Davis 
47*b0d29bc4SBrooks Davis 
48*b0d29bc4SBrooks Davis /// Representation of the database metadata.
49*b0d29bc4SBrooks Davis class metadata {
50*b0d29bc4SBrooks Davis     /// Current version of the database schema.
51*b0d29bc4SBrooks Davis     int _schema_version;
52*b0d29bc4SBrooks Davis 
53*b0d29bc4SBrooks Davis     /// Timestamp of the last metadata entry in the database.
54*b0d29bc4SBrooks Davis     int64_t _timestamp;
55*b0d29bc4SBrooks Davis 
56*b0d29bc4SBrooks Davis     metadata(const int, const int64_t);
57*b0d29bc4SBrooks Davis 
58*b0d29bc4SBrooks Davis public:
59*b0d29bc4SBrooks Davis     int64_t timestamp(void) const;
60*b0d29bc4SBrooks Davis     int schema_version(void) const;
61*b0d29bc4SBrooks Davis 
62*b0d29bc4SBrooks Davis     static metadata fetch_latest(utils::sqlite::database&);
63*b0d29bc4SBrooks Davis };
64*b0d29bc4SBrooks Davis 
65*b0d29bc4SBrooks Davis 
66*b0d29bc4SBrooks Davis }  // namespace store
67*b0d29bc4SBrooks Davis 
68*b0d29bc4SBrooks Davis #endif  // !defined(STORE_METADATA_HPP)
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