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Diffstat (limited to 'src/3rdparty/btree/qt/qbtree.h')
-rw-r--r-- | src/3rdparty/btree/qt/qbtree.h | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/src/3rdparty/btree/qt/qbtree.h b/src/3rdparty/btree/qt/qbtree.h deleted file mode 100644 index 60c71590..00000000 --- a/src/3rdparty/btree/qt/qbtree.h +++ /dev/null @@ -1,167 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the QtAddOn.JsonDb module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QBTREE_H -#define QBTREE_H - -#include <QByteArray> -#include <QString> -#include <QList> -#include <QtEndian> - - -class QBtreeTxn; -class QBtreeCursor; -struct btree; -struct btree_stat; - -class QBtree -{ -public: - - enum DbFlag { - Default=0x0000, - ReverseKeys=0x001, - NoSync=0x004, - ReadOnly=0x008, - UseSyncMarker=0x010, - NoPageChecksums=0x020 - }; - Q_DECLARE_FLAGS(DbFlags, DbFlag) - - static quint32 readWriteFlags() - { return (quint32)(QBtree::NoSync | QBtree::UseSyncMarker); } - - class Stat - { - public: - qint32 reads; - qint32 hits; - qint32 writes; - quint32 psize; - quint32 ksize; - Stat() : reads(0), hits(0), writes(0), psize(0), ksize(0) {}; - Stat &operator += (const Stat &o) - { - reads += o.reads; - hits += o.hits; - writes += o.writes; - psize = o.psize; - ksize = o.ksize; - return *this; - } - }; - - typedef QBtreeCursor CursorType; - typedef QBtreeTxn TransactionType; - typedef Stat StatType; - - QBtree(); - QBtree(const QString &filename); - ~QBtree(); - - typedef int (*CompareFunction)(const QByteArray &, const QByteArray &); - void setCompareFunction(CompareFunction cmp); - void setFileName(const QString &filename); - void setFlags(DbFlags flags); - void setAutoCompactRate(int rate); - void setCacheSize(unsigned int cacheSize); - - int autoCompactRate() const - { return mAutoCompactRate; } - - bool open(); - void close(); - bool isOpen() const; - - bool open(quint32 flags) - { setFlags(QFlag(flags)); return open(); } - - enum TxnFlag { TxnReadWrite, TxnReadOnly }; - QBtreeTxn *begin(TxnFlag flag = TxnReadWrite); - - QBtreeTxn *beginWrite() - { return begin(QBtree::TxnReadWrite); } - QBtreeTxn *beginRead() - { return begin(QBtree::TxnReadOnly); } - QBtreeTxn *beginRead(quint32 tag); - - bool rollback(); - - QString fileName() const { return mFilename; } - QBtree::Stat stats() const; - quint64 count() const; - btree *handle() const { return mBtree; } - quint32 tag() const; - - bool compact(); - bool sync(); - void dump() const; - - bool isWriting() const; - QBtreeTxn *writeTransaction(); - - QString errorMessage(); - -private: - bool commit(QBtreeTxn *txn, quint32 tag); - void abort(QBtreeTxn *txn); - - friend class QBtreeTxn; - - QString mFilename; - btree *mBtree; - CompareFunction mCmp; - int mCacheSize; - int mFlags; - qint32 mWrites, mReads, mHits; // pages written and read, page cache hits - - int mCommitCount; - int mAutoCompactRate; - QBtreeTxn *mWriteTxn; - - Q_DISABLE_COPY(QBtree) -}; - - -Q_DECLARE_OPERATORS_FOR_FLAGS(QBtree::DbFlags) - -#endif // QBTREE_H |