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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
//! [0]
QReadWriteLock lock;
void ReaderThread::run()
{
...
lock.lockForRead();
read_file();
lock.unlock();
...
}
void WriterThread::run()
{
...
lock.lockForWrite();
write_file();
lock.unlock();
...
}
//! [0]
//! [1]
QReadWriteLock lock;
QByteArray readData()
{
QReadLocker locker(&lock);
...
return data;
}
//! [1]
//! [2]
QReadWriteLock lock;
QByteArray readData()
{
lock.lockForRead();
...
lock.unlock();
return data;
}
//! [2]
//! [3]
QReadWriteLock lock;
void writeData(const QByteArray &data)
{
QWriteLocker locker(&lock);
...
}
//! [3]
//! [4]
QReadWriteLock lock;
void writeData(const QByteArray &data)
{
lock.lockForWrite();
...
lock.unlock();
}
//! [4]
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