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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QtCore/QCoreApplication>
#include <QtCore/QElapsedTimer>
#include <QtCore/QList>
#include <QtCore/QThread>
#include <private/qfreelist_p.h>
#include <QTest>
class tst_QFreeList : public QObject
{
Q_OBJECT
private slots:
void basicTest();
void customized();
void threadedTest();
};
void tst_QFreeList::basicTest()
{
{
QFreeList<void> voidFreeList;
int zero = voidFreeList.next();
int one = voidFreeList.next();
int two = voidFreeList.next();
QCOMPARE(zero, 0);
QCOMPARE(one, 1);
QCOMPARE(two, 2);
voidFreeList[zero];
voidFreeList[one];
voidFreeList[two];
voidFreeList.at(zero);
voidFreeList.at(one);
voidFreeList.at(two);
voidFreeList.release(one);
int next = voidFreeList.next();
QCOMPARE(next, 1);
voidFreeList[next];
voidFreeList.at(next);
}
{
QFreeList<int> intFreeList;
int zero = intFreeList.next();
int one = intFreeList.next();
int two = intFreeList.next();
QCOMPARE(zero, 0);
QCOMPARE(one, 1);
QCOMPARE(two, 2);
intFreeList[zero] = zero;
intFreeList[one] = one;
intFreeList[two] = two;
QCOMPARE(intFreeList.at(zero), zero);
QCOMPARE(intFreeList.at(one), one);
QCOMPARE(intFreeList.at(two), two);
intFreeList.release(one);
int next = intFreeList.next();
QCOMPARE(next, 1);
QCOMPARE(intFreeList.at(next), one);
intFreeList[next] = -one;
QCOMPARE(intFreeList.at(next), -one);
}
}
struct CustomFreeListConstants : public QFreeListDefaultConstants
{
enum {
InitialNextValue = 50,
BlockCount = 10
};
static const int Sizes[10];
};
const int CustomFreeListConstants::Sizes[10] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 16777216 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 };
void tst_QFreeList::customized()
{
QFreeList<void, CustomFreeListConstants> customFreeList;
int next = customFreeList.next();
QCOMPARE(next, int(CustomFreeListConstants::InitialNextValue));
customFreeList[next];
customFreeList.at(next);
customFreeList.release(next);
}
enum { TimeLimit = 3000 };
class FreeListThread : public QThread
{
static QFreeList<void> freelist;
public:
inline FreeListThread() : QThread() { }
inline void run() override
{
QElapsedTimer t;
t.start();
QList<int> needToRelease;
do {
int i = freelist.next();
int j = freelist.next();
int k = freelist.next();
int l = freelist.next();
freelist.release(k);
int n = freelist.next();
int m = freelist.next();
freelist.release(l);
freelist.release(m);
freelist.release(n);
freelist.release(j);
// freelist.release(i);
needToRelease << i;
} while (t.elapsed() < TimeLimit);
foreach (int x, needToRelease)
freelist.release(x);
}
};
QFreeList<void> FreeListThread::freelist;
void tst_QFreeList::threadedTest()
{
const int ThreadCount = QThread::idealThreadCount();
FreeListThread *threads = new FreeListThread[ThreadCount];
for (int i = 0; i < ThreadCount; ++i)
threads[i].start();
for (int i = 0; i < ThreadCount; ++i)
threads[i].wait();
delete [] threads;
}
QTEST_MAIN(tst_QFreeList)
#include "tst_qfreelist.moc"
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