| 1 | /* |
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| 2 | This file is part of the KDE Baloo project. |
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| 3 | SPDX-FileCopyrightText: 2015 Vishesh Handa <vhanda@kde.org> |
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| 4 | |
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| 5 | SPDX-License-Identifier: LGPL-2.1-or-later |
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| 6 | */ |
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| 7 | |
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| 8 | #ifndef BALOO_MTIMEDB_H |
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| 9 | #define BALOO_MTIMEDB_H |
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| 10 | |
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| 11 | #include "engine_export.h" |
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| 12 | #include <lmdb.h> |
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| 13 | #include <QVector> |
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| 14 | #include <QMap> |
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| 15 | |
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| 16 | namespace Baloo { |
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| 17 | |
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| 18 | class PostingIterator; |
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| 19 | |
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| 20 | /** |
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| 21 | * The MTime DB maps the file mtime to its id. This allows us to do |
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| 22 | * fast searches of files between a certain time range. |
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| 23 | */ |
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| 24 | class BALOO_ENGINE_EXPORT MTimeDB |
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| 25 | { |
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| 26 | public: |
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| 27 | explicit MTimeDB(MDB_dbi dbi, MDB_txn* txn); |
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| 28 | ~MTimeDB(); |
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| 29 | |
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| 30 | static MDB_dbi create(MDB_txn* txn); |
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| 31 | static MDB_dbi open(MDB_txn* txn); |
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| 32 | |
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| 33 | void put(quint32 mtime, quint64 docId); |
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| 34 | QVector<quint64> get(quint32 mtime); |
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| 35 | |
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| 36 | void del(quint32 mtime, quint64 docId); |
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| 37 | |
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| 38 | /** |
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| 39 | * Get documents with an mtime between \p beginTime and |
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| 40 | * \p endTime (inclusive) |
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| 41 | */ |
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| 42 | PostingIterator* iterRange(quint32 beginTime, quint32 endTime); |
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| 43 | |
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| 44 | QMap<quint32, quint64> toTestMap() const; |
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| 45 | private: |
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| 46 | MDB_txn* m_txn; |
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| 47 | MDB_dbi m_dbi; |
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| 48 | }; |
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| 49 | } |
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| 50 | |
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| 51 | #endif // BALOO_MTIMEDB_H |
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| 52 | |
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