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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include "xt9dbfile.h"
QT_BEGIN_NAMESPACE
namespace QtVirtualKeyboard {
Xt9DbFile::Xt9DbFile(const QString &fileName) :
file(fileName),
_data(nullptr),
_size(0),
_rw(false)
{
}
QString Xt9DbFile::fileName() const
{
return file.fileName();
}
const void *Xt9DbFile::roData()
{
if (_data == nullptr) {
if (file.open(QIODevice::ReadOnly)) {
_rw = false;
_size = file.size();
_data = file.map(0, _size, QFile::NoOptions);
if (!_data) {
_size = 0;
}
file.close();
}
}
return _data;
}
void *Xt9DbFile::rwData(qint64 size)
{
if (_data == nullptr || !_rw) {
if (!_rw) {
file.unmap(static_cast<uchar *>(_data));
_data = nullptr;
_rw = false;
}
if (file.open(QIODevice::ReadWrite)) {
_rw = true;
_size = file.size();
if (_size == 0) {
_size = size;
file.resize(_size);
}
_data = file.map(0, _size, QFile::NoOptions);
if (!_data) {
_size = 0;
}
file.close();
}
}
return _data;
}
qint64 Xt9DbFile::size() const
{
return _size;
}
} // namespace QtVirtualKeyboard
QT_END_NAMESPACE
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