qt5base-lts/tests/auto/qsharedpointer/tst_qsharedpointer.cpp
Rohan McGovern 6e50394c4e Reduce usage of Q_ASSERT in autotests.
Using Q_ASSERT does nothing in release-mode builds, and in debug builds
it causes tests to terminate prematurely.  It is much better to use
QVERIFY or QCOMPARE.

Task-number: QTBUG-17582
Reviewed-by: Rohan McGovern
(cherry picked from commit 3475168550c1a804f04f2a4edfeb30c04cd36551)

Change-Id: Ic39972b685ca35a9a71d9c8d03e8dae31481fb19
2011-05-18 10:57:56 +10:00

1923 lines
56 KiB
C++

/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#define QT_SHAREDPOINTER_TRACK_POINTERS
#include "qsharedpointer.h"
#include <QtTest/QtTest>
#include <QtCore/QHash>
#include <QtCore/QMap>
#include <QtCore/QThread>
#include <QtCore/QVector>
#include "externaltests.h"
#include "wrapper.h"
#include <stdlib.h>
#include <time.h>
QT_BEGIN_NAMESPACE
namespace QtSharedPointer {
Q_CORE_EXPORT void internalSafetyCheckCleanCheck();
}
QT_END_NAMESPACE
#ifdef Q_OS_SYMBIAN
#define SRCDIR "."
#endif
class tst_QSharedPointer: public QObject
{
Q_OBJECT
private slots:
void basics_data();
void basics();
void operators();
void swap();
void forwardDeclaration1();
void forwardDeclaration2();
void memoryManagement();
void downCast();
void functionCallDownCast();
void upCast();
void qobjectWeakManagement();
void noSharedPointerFromWeakQObject();
void weakQObjectFromSharedPointer();
void objectCast();
void differentPointers();
void virtualBaseDifferentPointers();
#ifndef QTEST_NO_RTTI
void dynamicCast();
void dynamicCastDifferentPointers();
void dynamicCastVirtualBase();
void dynamicCastFailure();
#endif
void constCorrectness();
void customDeleter();
void creating();
void creatingQObject();
void mixTrackingPointerCode();
void reentrancyWhileDestructing();
void threadStressTest_data();
void threadStressTest();
void map();
void hash();
void validConstructs();
void invalidConstructs_data();
void invalidConstructs();
public slots:
void cleanup() { check(); }
public:
inline void check()
{
#ifdef QT_BUILD_INTERNAL
QtSharedPointer::internalSafetyCheckCleanCheck();
#endif
}
};
template <typename Base>
class RefCountHack: public Base
{
public:
using Base::d;
};
template<typename Base> static inline
QtSharedPointer::ExternalRefCountData *refCountData(const Base &b)
{ return static_cast<const RefCountHack<Base> *>(&b)->d; }
class Data
{
public:
static int destructorCounter;
static int generationCounter;
int generation;
Data() : generation(++generationCounter)
{ }
virtual ~Data()
{
if (generation <= 0)
qFatal("tst_qsharedpointer: Double deletion!");
generation = 0;
++destructorCounter;
}
void doDelete()
{
delete this;
}
bool alsoDelete()
{
doDelete();
return true;
}
virtual void virtualDelete()
{
delete this;
}
virtual int classLevel() { return 1; }
};
int Data::generationCounter = 0;
int Data::destructorCounter = 0;
void tst_QSharedPointer::basics_data()
{
QTest::addColumn<bool>("isNull");
QTest::newRow("null") << true;
QTest::newRow("non-null") << false;
}
void tst_QSharedPointer::basics()
{
{
QSharedPointer<Data> ptr;
QWeakPointer<Data> weakref;
QCOMPARE(sizeof(ptr), 2*sizeof(void*));
QCOMPARE(sizeof(weakref), 2*sizeof(void*));
}
QFETCH(bool, isNull);
Data *aData = 0;
if (!isNull)
aData = new Data;
Data *otherData = new Data;
QSharedPointer<Data> ptr(aData);
{
// basic self tests
QCOMPARE(ptr.isNull(), isNull);
QCOMPARE(bool(ptr), !isNull);
QCOMPARE(!ptr, isNull);
QCOMPARE(ptr.data(), aData);
QCOMPARE(ptr.operator->(), aData);
Data &dataReference = *ptr;
QCOMPARE(&dataReference, aData);
QVERIFY(ptr == aData);
QVERIFY(!(ptr != aData));
QVERIFY(aData == ptr);
QVERIFY(!(aData != ptr));
QVERIFY(ptr != otherData);
QVERIFY(otherData != ptr);
QVERIFY(! (ptr == otherData));
QVERIFY(! (otherData == ptr));
}
QVERIFY(!refCountData(ptr) || refCountData(ptr)->weakref == 1);
QVERIFY(!refCountData(ptr) || refCountData(ptr)->strongref == 1);
{
// create another object:
QSharedPointer<Data> otherCopy(otherData);
QVERIFY(ptr != otherCopy);
QVERIFY(otherCopy != ptr);
QVERIFY(! (ptr == otherCopy));
QVERIFY(! (otherCopy == ptr));
// otherData is deleted here
}
QVERIFY(!refCountData(ptr) || refCountData(ptr)->weakref == 1);
QVERIFY(!refCountData(ptr) || refCountData(ptr)->strongref == 1);
{
// create a copy:
QSharedPointer<Data> copy(ptr);
QVERIFY(copy == ptr);
QVERIFY(ptr == copy);
QVERIFY(! (copy != ptr));
QVERIFY(! (ptr != copy));
QCOMPARE(copy, ptr);
QCOMPARE(ptr, copy);
QCOMPARE(copy.isNull(), isNull);
QCOMPARE(copy.data(), aData);
QVERIFY(copy == aData);
}
QVERIFY(!refCountData(ptr) || refCountData(ptr)->weakref == 1);
QVERIFY(!refCountData(ptr) || refCountData(ptr)->strongref == 1);
{
// create a weak reference:
QWeakPointer<Data> weak(ptr);
QCOMPARE(weak.isNull(), isNull);
QCOMPARE(!weak, isNull);
QCOMPARE(bool(weak), !isNull);
QVERIFY(ptr == weak);
QVERIFY(weak == ptr);
QVERIFY(! (ptr != weak));
QVERIFY(! (weak != ptr));
// create another reference:
QWeakPointer<Data> weak2(weak);
QCOMPARE(weak2.isNull(), isNull);
QCOMPARE(!weak2, isNull);
QCOMPARE(bool(weak2), !isNull);
QVERIFY(weak2 == weak);
QVERIFY(weak == weak2);
QVERIFY(! (weak2 != weak));
QVERIFY(! (weak != weak2));
// create a strong reference back:
QSharedPointer<Data> strong(weak);
QVERIFY(strong == weak);
QVERIFY(strong == ptr);
QCOMPARE(strong.data(), aData);
}
QVERIFY(!refCountData(ptr) || refCountData(ptr)->weakref == 1);
QVERIFY(!refCountData(ptr) || refCountData(ptr)->strongref == 1);
// aData is deleted here
}
void tst_QSharedPointer::operators()
{
QSharedPointer<char> p1;
QSharedPointer<char> p2(new char);
qptrdiff diff = p2.data() - p1.data();
QVERIFY(p1.data() != p2.data());
QVERIFY(diff != 0);
// operator-
QCOMPARE(p2 - p1.data(), diff);
QCOMPARE(p2.data() - p1, diff);
QCOMPARE(p2 - p1, diff);
QCOMPARE(p1 - p2, -diff);
QCOMPARE(p1 - p1, qptrdiff(0));
QCOMPARE(p2 - p2, qptrdiff(0));
// operator<
QVERIFY(p1 < p2.data());
QVERIFY(p1.data() < p2);
QVERIFY(p1 < p2);
QVERIFY(!(p2 < p1));
QVERIFY(!(p2 < p2));
QVERIFY(!(p1 < p1));
// qHash
QCOMPARE(qHash(p1), qHash(p1.data()));
QCOMPARE(qHash(p2), qHash(p2.data()));
}
void tst_QSharedPointer::swap()
{
QSharedPointer<int> p1, p2(new int(42)), control = p2;
QVERIFY(p1 != control);
QVERIFY(p1.isNull());
QVERIFY(p2 == control);
QVERIFY(!p2.isNull());
QVERIFY(*p2 == 42);
p1.swap(p2);
QVERIFY(p1 == control);
QVERIFY(!p1.isNull());
QVERIFY(p2 != control);
QVERIFY(p2.isNull());
QVERIFY(*p1 == 42);
p1.swap(p2);
QVERIFY(p1 != control);
QVERIFY(p1.isNull());
QVERIFY(p2 == control);
QVERIFY(!p2.isNull());
QVERIFY(*p2 == 42);
qSwap(p1, p2);
QVERIFY(p1 == control);
QVERIFY(!p1.isNull());
QVERIFY(p2 != control);
QVERIFY(p2.isNull());
QVERIFY(*p1 == 42);
}
class ForwardDeclared;
ForwardDeclared *forwardPointer();
void externalForwardDeclaration();
extern int forwardDeclaredDestructorRunCount;
void tst_QSharedPointer::forwardDeclaration1()
{
#if defined(Q_CC_SUN) || defined(Q_CC_WINSCW) || defined(Q_CC_RVCT)
QSKIP("This type of forward declaration is not valid with this compiler", SkipAll);
#else
externalForwardDeclaration();
struct Wrapper { QSharedPointer<ForwardDeclared> pointer; };
forwardDeclaredDestructorRunCount = 0;
{
Wrapper w;
w.pointer = QSharedPointer<ForwardDeclared>(forwardPointer());
QVERIFY(!w.pointer.isNull());
}
QCOMPARE(forwardDeclaredDestructorRunCount, 1);
#endif
}
#include "forwarddeclared.h"
void tst_QSharedPointer::forwardDeclaration2()
{
forwardDeclaredDestructorRunCount = 0;
{
struct Wrapper { QSharedPointer<ForwardDeclared> pointer; };
Wrapper w1, w2;
w1.pointer = QSharedPointer<ForwardDeclared>(forwardPointer());
QVERIFY(!w1.pointer.isNull());
}
QCOMPARE(forwardDeclaredDestructorRunCount, 1);
}
void tst_QSharedPointer::memoryManagement()
{
int generation = Data::generationCounter + 1;
int destructorCounter = Data::destructorCounter;
QSharedPointer<Data> ptr = QSharedPointer<Data>(new Data);
QCOMPARE(ptr->generation, generation);
QCOMPARE(Data::destructorCounter, destructorCounter);
QCOMPARE(Data::generationCounter, generation);
ptr = ptr;
QCOMPARE(ptr->generation, generation);
QCOMPARE(Data::destructorCounter, destructorCounter);
QCOMPARE(Data::generationCounter, generation);
{
QSharedPointer<Data> copy = ptr;
QCOMPARE(ptr->generation, generation);
QCOMPARE(copy->generation, generation);
// copy goes out of scope, ptr continues
}
QCOMPARE(ptr->generation, generation);
QCOMPARE(Data::destructorCounter, destructorCounter);
QCOMPARE(Data::generationCounter, generation);
{
QWeakPointer<Data> weak = ptr;
weak = ptr;
QCOMPARE(ptr->generation, generation);
QCOMPARE(Data::destructorCounter, destructorCounter);
QCOMPARE(Data::generationCounter, generation);
weak = weak;
QCOMPARE(ptr->generation, generation);
QCOMPARE(Data::destructorCounter, destructorCounter);
QCOMPARE(Data::generationCounter, generation);
QSharedPointer<Data> strong = weak;
QCOMPARE(ptr->generation, generation);
QCOMPARE(strong->generation, generation);
QCOMPARE(Data::destructorCounter, destructorCounter);
QCOMPARE(Data::generationCounter, generation);
// both weak and strong go out of scope
}
QCOMPARE(ptr->generation, generation);
QCOMPARE(Data::destructorCounter, destructorCounter);
QCOMPARE(Data::generationCounter, generation);
QWeakPointer<Data> weak = ptr;
ptr = QSharedPointer<Data>();
// destructor must have been called
QCOMPARE(Data::destructorCounter, destructorCounter + 1);
QVERIFY(ptr.isNull());
QVERIFY(weak.isNull());
// if we create a strong pointer from the weak, it must still be null
ptr = weak;
QVERIFY(ptr.isNull());
QVERIFY(ptr == 0);
QCOMPARE(ptr.data(), (Data*)0);
}
class DerivedData: public Data
{
public:
static int derivedDestructorCounter;
int moreData;
DerivedData() : moreData(0) { }
~DerivedData() { ++derivedDestructorCounter; }
virtual void virtualDelete()
{
delete this;
}
virtual int classLevel() { return 2; }
};
int DerivedData::derivedDestructorCounter = 0;
class Stuffing
{
public:
char buffer[16];
Stuffing() { for (uint i = 0; i < sizeof buffer; ++i) buffer[i] = 16 - i; }
virtual ~Stuffing() { }
};
class DiffPtrDerivedData: public Stuffing, public Data
{
public:
virtual int classLevel() { return 3; }
};
class VirtualDerived: virtual public Data
{
public:
int moreData;
VirtualDerived() : moreData(0xc0ffee) { }
virtual int classLevel() { return 4; }
};
void tst_QSharedPointer::downCast()
{
{
QSharedPointer<DerivedData> ptr = QSharedPointer<DerivedData>(new DerivedData);
QSharedPointer<Data> baseptr = qSharedPointerCast<Data>(ptr);
QSharedPointer<Data> other;
QVERIFY(ptr == baseptr);
QVERIFY(baseptr == ptr);
QVERIFY(! (ptr != baseptr));
QVERIFY(! (baseptr != ptr));
QVERIFY(ptr != other);
QVERIFY(other != ptr);
QVERIFY(! (ptr == other));
QVERIFY(! (other == ptr));
}
{
QSharedPointer<DerivedData> ptr = QSharedPointer<DerivedData>(new DerivedData);
QSharedPointer<Data> baseptr = ptr;
}
int destructorCount;
destructorCount = DerivedData::derivedDestructorCounter;
{
QSharedPointer<Data> baseptr;
{
QSharedPointer<DerivedData> ptr = QSharedPointer<DerivedData>(new DerivedData);
baseptr = ptr;
QVERIFY(baseptr == ptr);
}
}
QCOMPARE(DerivedData::derivedDestructorCounter, destructorCount + 1);
destructorCount = DerivedData::derivedDestructorCounter;
{
QSharedPointer<DerivedData> ptr = QSharedPointer<DerivedData>(new DerivedData);
QWeakPointer<Data> baseptr = ptr;
QVERIFY(baseptr == ptr);
ptr = QSharedPointer<DerivedData>();
QVERIFY(baseptr.isNull());
}
QCOMPARE(DerivedData::derivedDestructorCounter, destructorCount + 1);
destructorCount = DerivedData::derivedDestructorCounter;
{
QSharedPointer<DerivedData> ptr = QSharedPointer<DerivedData>(new DerivedData);
QWeakPointer<DerivedData> weakptr(ptr);
QSharedPointer<Data> baseptr = weakptr;
QVERIFY(baseptr == ptr);
QWeakPointer<Data> baseweakptr = weakptr;
QVERIFY(baseweakptr == ptr);
}
QCOMPARE(DerivedData::derivedDestructorCounter, destructorCount + 1);
}
void functionDataByValue(QSharedPointer<Data> p) { Q_UNUSED(p); };
void functionDataByRef(const QSharedPointer<Data> &p) { Q_UNUSED(p); };
void tst_QSharedPointer::functionCallDownCast()
{
QSharedPointer<DerivedData> p(new DerivedData());
functionDataByValue(p);
functionDataByRef(p);
}
void tst_QSharedPointer::upCast()
{
QSharedPointer<Data> baseptr = QSharedPointer<Data>(new DerivedData);
{
QSharedPointer<DerivedData> derivedptr = qSharedPointerCast<DerivedData>(baseptr);
QVERIFY(baseptr == derivedptr);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
{
QWeakPointer<DerivedData> derivedptr = qWeakPointerCast<DerivedData>(baseptr);
QVERIFY(baseptr == derivedptr);
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
{
QWeakPointer<Data> weakptr = baseptr;
QSharedPointer<DerivedData> derivedptr = qSharedPointerCast<DerivedData>(weakptr);
QVERIFY(baseptr == derivedptr);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
{
QSharedPointer<DerivedData> derivedptr = baseptr.staticCast<DerivedData>();
QVERIFY(baseptr == derivedptr);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
}
class OtherObject: public QObject
{
Q_OBJECT
};
void tst_QSharedPointer::qobjectWeakManagement()
{
{
QWeakPointer<QObject> weak;
weak = QWeakPointer<QObject>();
QVERIFY(weak.isNull());
QVERIFY(!weak.data());
}
{
QObject *obj = new QObject;
QWeakPointer<QObject> weak(obj);
QVERIFY(!weak.isNull());
QVERIFY(weak.data() == obj);
// now delete
delete obj;
QVERIFY(weak.isNull());
}
check();
{
// same, bit with operator=
QObject *obj = new QObject;
QWeakPointer<QObject> weak;
weak = obj;
QVERIFY(!weak.isNull());
QVERIFY(weak.data() == obj);
// now delete
delete obj;
QVERIFY(weak.isNull());
}
check();
{
// delete triggered by parent
QObject *obj, *parent;
parent = new QObject;
obj = new QObject(parent);
QWeakPointer<QObject> weak(obj);
// now delete the parent
delete parent;
QVERIFY(weak.isNull());
}
check();
{
// same as above, but set the parent after QWeakPointer is created
QObject *obj, *parent;
obj = new QObject;
QWeakPointer<QObject> weak(obj);
parent = new QObject;
obj->setParent(parent);
// now delete the parent
delete parent;
QVERIFY(weak.isNull());
}
check();
{
// with two QWeakPointers
QObject *obj = new QObject;
QWeakPointer<QObject> weak(obj);
{
QWeakPointer<QObject> weak2(obj);
QVERIFY(!weak2.isNull());
QVERIFY(weak == weak2);
}
QVERIFY(!weak.isNull());
delete obj;
QVERIFY(weak.isNull());
}
check();
{
// same, but delete the pointer while two QWeakPointers exist
QObject *obj = new QObject;
QWeakPointer<QObject> weak(obj);
{
QWeakPointer<QObject> weak2(obj);
QVERIFY(!weak2.isNull());
delete obj;
QVERIFY(weak.isNull());
QVERIFY(weak2.isNull());
}
QVERIFY(weak.isNull());
}
check();
}
void tst_QSharedPointer::noSharedPointerFromWeakQObject()
{
// you're not allowed to create a QSharedPointer from an unmanaged QObject
QObject obj;
QWeakPointer<QObject> weak(&obj);
QSharedPointer<QObject> strong = weak.toStrongRef();
QVERIFY(strong.isNull());
// if something went wrong, we'll probably crash here
}
void tst_QSharedPointer::weakQObjectFromSharedPointer()
{
// this is the inverse of the above: you're allowed to create a QWeakPointer
// from a managed QObject
QSharedPointer<QObject> shared(new QObject);
QWeakPointer<QObject> weak = shared.data();
QVERIFY(!weak.isNull());
// delete:
shared.clear();
QVERIFY(weak.isNull());
}
void tst_QSharedPointer::objectCast()
{
{
OtherObject *data = new OtherObject;
QSharedPointer<QObject> baseptr = QSharedPointer<QObject>(data);
QVERIFY(baseptr == data);
QVERIFY(data == baseptr);
// perform object cast
QSharedPointer<OtherObject> ptr = qSharedPointerObjectCast<OtherObject>(baseptr);
QVERIFY(!ptr.isNull());
QCOMPARE(ptr.data(), data);
QVERIFY(ptr == data);
// again:
ptr = baseptr.objectCast<OtherObject>();
QVERIFY(ptr == data);
// again:
ptr = qobject_cast<OtherObject *>(baseptr);
QVERIFY(ptr == data);
// again:
ptr = qobject_cast<QSharedPointer<OtherObject> >(baseptr);
QVERIFY(ptr == data);
}
check();
{
const OtherObject *data = new OtherObject;
QSharedPointer<const QObject> baseptr = QSharedPointer<const QObject>(data);
QVERIFY(baseptr == data);
QVERIFY(data == baseptr);
// perform object cast
QSharedPointer<const OtherObject> ptr = qSharedPointerObjectCast<const OtherObject>(baseptr);
QVERIFY(!ptr.isNull());
QCOMPARE(ptr.data(), data);
QVERIFY(ptr == data);
// again:
ptr = baseptr.objectCast<const OtherObject>();
QVERIFY(ptr == data);
// again:
ptr = qobject_cast<const OtherObject *>(baseptr);
QVERIFY(ptr == data);
// again:
ptr = qobject_cast<QSharedPointer<const OtherObject> >(baseptr);
QVERIFY(ptr == data);
}
check();
{
OtherObject *data = new OtherObject;
QPointer<OtherObject> qptr = data;
QSharedPointer<OtherObject> ptr = QSharedPointer<OtherObject>(data);
QWeakPointer<QObject> weakptr = ptr;
{
// perform object cast
QSharedPointer<OtherObject> otherptr = qSharedPointerObjectCast<OtherObject>(weakptr);
QVERIFY(otherptr == ptr);
// again:
otherptr = qobject_cast<OtherObject *>(weakptr);
QVERIFY(otherptr == ptr);
// again:
otherptr = qobject_cast<QSharedPointer<OtherObject> >(weakptr);
QVERIFY(otherptr == ptr);
}
// drop the reference:
ptr.clear();
QVERIFY(ptr.isNull());
QVERIFY(qptr.isNull());
QVERIFY(weakptr.toStrongRef().isNull());
// verify that the object casts fail without crash
QSharedPointer<OtherObject> otherptr = qSharedPointerObjectCast<OtherObject>(weakptr);
QVERIFY(otherptr.isNull());
// again:
otherptr = qobject_cast<OtherObject *>(weakptr);
QVERIFY(otherptr.isNull());
// again:
otherptr = qobject_cast<QSharedPointer<OtherObject> >(weakptr);
QVERIFY(otherptr.isNull());
}
check();
}
void tst_QSharedPointer::differentPointers()
{
{
DiffPtrDerivedData *aData = new DiffPtrDerivedData;
Data *aBase = aData;
// ensure that this compiler isn't broken
if (*reinterpret_cast<quintptr *>(&aData) == *reinterpret_cast<quintptr *>(&aBase))
qFatal("Something went very wrong -- we couldn't create two different pointers to the same object");
if (aData != aBase)
QSKIP("Broken compiler", SkipAll);
if (aBase != aData)
QSKIP("Broken compiler", SkipAll);
QSharedPointer<DiffPtrDerivedData> ptr = QSharedPointer<DiffPtrDerivedData>(aData);
QSharedPointer<Data> baseptr = qSharedPointerCast<Data>(ptr);
qDebug("naked: orig: %p; base: %p (%s) -- QSharedPointer: orig: %p; base %p (%s) -- result: %s",
aData, aBase, aData == aBase ? "equal" : "not equal",
ptr.data(), baseptr.data(), ptr.data() == baseptr.data() ? "equal" : "not equal",
baseptr.data() == aData ? "equal" : "not equal");
QVERIFY(ptr.data() == baseptr.data());
QVERIFY(baseptr.data() == ptr.data());
QVERIFY(ptr == baseptr);
QVERIFY(baseptr == ptr);
QVERIFY(ptr.data() == aBase);
QVERIFY(aBase == ptr.data());
QVERIFY(ptr.data() == aData);
QVERIFY(aData == ptr.data());
QVERIFY(ptr == aBase);
QVERIFY(aBase == ptr);
QVERIFY(ptr == aData);
QVERIFY(aData == ptr);
QVERIFY(baseptr.data() == aBase);
QVERIFY(aBase == baseptr.data());
QVERIFY(baseptr == aBase);
QVERIFY(aBase == baseptr);
QVERIFY(baseptr.data() == aData);
QVERIFY(aData == baseptr.data());
#if defined(Q_CC_MSVC) && _MSC_VER < 1400
QEXPECT_FAIL("", "Compiler bug", Continue);
#endif
QVERIFY(baseptr == aData);
#if defined(Q_CC_MSVC) && _MSC_VER < 1400
QEXPECT_FAIL("", "Compiler bug", Continue);
#endif
QVERIFY(aData == baseptr);
}
check();
{
DiffPtrDerivedData *aData = new DiffPtrDerivedData;
Data *aBase = aData;
QVERIFY(aData == aBase);
QVERIFY(*reinterpret_cast<quintptr *>(&aData) != *reinterpret_cast<quintptr *>(&aBase));
QSharedPointer<Data> baseptr = QSharedPointer<Data>(aData);
QSharedPointer<DiffPtrDerivedData> ptr = qSharedPointerCast<DiffPtrDerivedData>(baseptr);
QVERIFY(ptr == baseptr);
QVERIFY(ptr.data() == baseptr.data());
QVERIFY(ptr == aBase);
#if defined(Q_CC_MSVC) && _MSC_VER < 1400
QEXPECT_FAIL("", "Compiler bug", Continue);
#endif
QVERIFY(baseptr == aData);
}
check();
{
DiffPtrDerivedData *aData = new DiffPtrDerivedData;
Data *aBase = aData;
QVERIFY(aData == aBase);
QVERIFY(*reinterpret_cast<quintptr *>(&aData) != *reinterpret_cast<quintptr *>(&aBase));
QSharedPointer<DiffPtrDerivedData> ptr = QSharedPointer<DiffPtrDerivedData>(aData);
QSharedPointer<Data> baseptr = ptr;
QVERIFY(ptr == baseptr);
QVERIFY(ptr.data() == baseptr.data());
QVERIFY(ptr == aBase);
QVERIFY(ptr == aData);
#if defined(Q_CC_MSVC) && _MSC_VER < 1400
QEXPECT_FAIL("", "Compiler bug", Continue);
#endif
QVERIFY(baseptr == aData);
QVERIFY(baseptr == aBase);
}
check();
}
void tst_QSharedPointer::virtualBaseDifferentPointers()
{
{
VirtualDerived *aData = new VirtualDerived;
Data *aBase = aData;
QVERIFY(aData == aBase);
QVERIFY(*reinterpret_cast<quintptr *>(&aData) != *reinterpret_cast<quintptr *>(&aBase));
QSharedPointer<VirtualDerived> ptr = QSharedPointer<VirtualDerived>(aData);
QSharedPointer<Data> baseptr = qSharedPointerCast<Data>(ptr);
QVERIFY(ptr == baseptr);
QVERIFY(ptr.data() == baseptr.data());
QVERIFY(ptr == aBase);
QVERIFY(ptr == aData);
#if defined(Q_CC_MSVC) && _MSC_VER < 1400
QEXPECT_FAIL("", "Compiler bug", Continue);
#endif
QVERIFY(baseptr == aData);
QVERIFY(baseptr == aBase);
}
check();
{
VirtualDerived *aData = new VirtualDerived;
Data *aBase = aData;
QVERIFY(aData == aBase);
QVERIFY(*reinterpret_cast<quintptr *>(&aData) != *reinterpret_cast<quintptr *>(&aBase));
QSharedPointer<VirtualDerived> ptr = QSharedPointer<VirtualDerived>(aData);
QSharedPointer<Data> baseptr = ptr;
QVERIFY(ptr == baseptr);
QVERIFY(ptr.data() == baseptr.data());
QVERIFY(ptr == aBase);
QVERIFY(ptr == aData);
#if defined(Q_CC_MSVC) && _MSC_VER < 1400
QEXPECT_FAIL("", "Compiler bug", Continue);
#endif
QVERIFY(baseptr == aData);
QVERIFY(baseptr == aBase);
}
check();
}
#ifndef QTEST_NO_RTTI
void tst_QSharedPointer::dynamicCast()
{
DerivedData *aData = new DerivedData;
QSharedPointer<Data> baseptr = QSharedPointer<Data>(aData);
{
QSharedPointer<DerivedData> derivedptr = qSharedPointerDynamicCast<DerivedData>(baseptr);
QVERIFY(baseptr == derivedptr);
QCOMPARE(derivedptr.data(), aData);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
{
QWeakPointer<Data> weakptr = baseptr;
QSharedPointer<DerivedData> derivedptr = qSharedPointerDynamicCast<DerivedData>(weakptr);
QVERIFY(baseptr == derivedptr);
QCOMPARE(derivedptr.data(), aData);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
{
QSharedPointer<DerivedData> derivedptr = baseptr.dynamicCast<DerivedData>();
QVERIFY(baseptr == derivedptr);
QCOMPARE(derivedptr.data(), aData);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
}
void tst_QSharedPointer::dynamicCastDifferentPointers()
{
// DiffPtrDerivedData derives from both Data and Stuffing
DiffPtrDerivedData *aData = new DiffPtrDerivedData;
QSharedPointer<Data> baseptr = QSharedPointer<Data>(aData);
{
QSharedPointer<DiffPtrDerivedData> derivedptr = qSharedPointerDynamicCast<DiffPtrDerivedData>(baseptr);
QVERIFY(baseptr == derivedptr);
QCOMPARE(derivedptr.data(), aData);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
{
QWeakPointer<Data> weakptr = baseptr;
QSharedPointer<DiffPtrDerivedData> derivedptr = qSharedPointerDynamicCast<DiffPtrDerivedData>(weakptr);
QVERIFY(baseptr == derivedptr);
QCOMPARE(derivedptr.data(), aData);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
{
QSharedPointer<DiffPtrDerivedData> derivedptr = baseptr.dynamicCast<DiffPtrDerivedData>();
QVERIFY(baseptr == derivedptr);
QCOMPARE(derivedptr.data(), aData);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
{
Stuffing *nakedptr = dynamic_cast<Stuffing *>(baseptr.data());
QVERIFY(nakedptr);
QSharedPointer<Stuffing> otherbaseptr = qSharedPointerDynamicCast<Stuffing>(baseptr);
QVERIFY(!otherbaseptr.isNull());
QVERIFY(otherbaseptr == nakedptr);
QCOMPARE(otherbaseptr.data(), nakedptr);
QCOMPARE(static_cast<DiffPtrDerivedData*>(otherbaseptr.data()), aData);
}
}
void tst_QSharedPointer::dynamicCastVirtualBase()
{
VirtualDerived *aData = new VirtualDerived;
QSharedPointer<Data> baseptr = QSharedPointer<Data>(aData);
{
QSharedPointer<VirtualDerived> derivedptr = qSharedPointerDynamicCast<VirtualDerived>(baseptr);
QVERIFY(baseptr == derivedptr);
QCOMPARE(derivedptr.data(), aData);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
{
QWeakPointer<Data> weakptr = baseptr;
QSharedPointer<VirtualDerived> derivedptr = qSharedPointerDynamicCast<VirtualDerived>(weakptr);
QVERIFY(baseptr == derivedptr);
QCOMPARE(derivedptr.data(), aData);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
{
QSharedPointer<VirtualDerived> derivedptr = baseptr.dynamicCast<VirtualDerived>();
QVERIFY(baseptr == derivedptr);
QCOMPARE(derivedptr.data(), aData);
QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
}
void tst_QSharedPointer::dynamicCastFailure()
{
QSharedPointer<Data> baseptr = QSharedPointer<Data>(new Data);
QVERIFY(dynamic_cast<DerivedData *>(baseptr.data()) == 0);
{
QSharedPointer<DerivedData> derivedptr = qSharedPointerDynamicCast<DerivedData>(baseptr);
QVERIFY(derivedptr.isNull());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
{
QSharedPointer<DerivedData> derivedptr = baseptr.dynamicCast<DerivedData>();
QVERIFY(derivedptr.isNull());
}
QCOMPARE(int(refCountData(baseptr)->weakref), 1);
QCOMPARE(int(refCountData(baseptr)->strongref), 1);
}
#endif
void tst_QSharedPointer::constCorrectness()
{
{
QSharedPointer<Data> ptr = QSharedPointer<Data>(new Data);
QSharedPointer<const Data> cptr(ptr);
QSharedPointer<volatile Data> vptr(ptr);
cptr = ptr;
vptr = ptr;
ptr = qSharedPointerConstCast<Data>(cptr);
ptr = qSharedPointerConstCast<Data>(vptr);
ptr = cptr.constCast<Data>();
ptr = vptr.constCast<Data>();
#if !defined(Q_CC_HPACC) && !defined(QT_ARCH_PARISC)
// the aCC series 3 compiler we have on the PA-RISC
// machine crashes compiling this code
QSharedPointer<const volatile Data> cvptr(ptr);
QSharedPointer<const volatile Data> cvptr2(cptr);
QSharedPointer<const volatile Data> cvptr3(vptr);
cvptr = ptr;
cvptr2 = cptr;
cvptr3 = vptr;
ptr = qSharedPointerConstCast<Data>(cvptr);
ptr = cvptr.constCast<Data>();
#endif
}
check();
{
Data *aData = new Data;
QSharedPointer<Data> ptr = QSharedPointer<Data>(aData);
const QSharedPointer<Data> cptr = ptr;
ptr = cptr;
QSharedPointer<Data> other = qSharedPointerCast<Data>(cptr);
#ifndef QT_NO_DYNAMIC_CAST
other = qSharedPointerDynamicCast<Data>(cptr);
#endif
QCOMPARE(cptr.data(), aData);
QCOMPARE(cptr.operator->(), aData);
}
check();
}
static int customDeleterFnCallCount;
void customDeleterFn(Data *ptr)
{
++customDeleterFnCallCount;
delete ptr;
}
static int refcount;
template <typename T>
struct CustomDeleter
{
CustomDeleter() { ++refcount; }
CustomDeleter(const CustomDeleter &) { ++refcount; }
~CustomDeleter() { --refcount; }
inline void operator()(T *ptr)
{
delete ptr;
++callCount;
}
static int callCount;
};
template<typename T> int CustomDeleter<T>::callCount = 0;
void tst_QSharedPointer::customDeleter()
{
{
QSharedPointer<Data> ptr(new Data, &Data::doDelete);
QSharedPointer<Data> ptr2(new Data, &Data::alsoDelete);
QSharedPointer<Data> ptr3(new Data, &Data::virtualDelete);
}
check();
{
QSharedPointer<DerivedData> ptr(new DerivedData, &Data::doDelete);
QSharedPointer<DerivedData> ptr2(new DerivedData, &Data::alsoDelete);
QSharedPointer<DerivedData> ptr3(new DerivedData, &Data::virtualDelete);
}
check();
customDeleterFnCallCount = 0;
{
QSharedPointer<Data> ptr = QSharedPointer<Data>(new Data, customDeleterFn);
ptr.data();
QCOMPARE(customDeleterFnCallCount, 0);
}
QCOMPARE(customDeleterFnCallCount, 1);
check();
customDeleterFnCallCount = 0;
{
QSharedPointer<Data> ptr = QSharedPointer<Data>(new Data, customDeleterFn);
QCOMPARE(customDeleterFnCallCount, 0);
ptr.clear();
QCOMPARE(customDeleterFnCallCount, 1);
}
QCOMPARE(customDeleterFnCallCount, 1);
check();
customDeleterFnCallCount = 0;
{
QSharedPointer<Data> ptr = QSharedPointer<Data>(new Data, customDeleterFn);
QCOMPARE(customDeleterFnCallCount, 0);
ptr = QSharedPointer<Data>(new Data);
QCOMPARE(customDeleterFnCallCount, 1);
}
QCOMPARE(customDeleterFnCallCount, 1);
check();
customDeleterFnCallCount = 0;
{
QSharedPointer<Data> ptr = QSharedPointer<Data>(new DerivedData, customDeleterFn);
ptr.data();
QCOMPARE(customDeleterFnCallCount, 0);
}
QCOMPARE(customDeleterFnCallCount, 1);
check();
customDeleterFnCallCount = 0;
{
QSharedPointer<DerivedData> ptr = QSharedPointer<DerivedData>(new DerivedData, customDeleterFn);
ptr.data();
QCOMPARE(customDeleterFnCallCount, 0);
}
QCOMPARE(customDeleterFnCallCount, 1);
check();
customDeleterFnCallCount = 0;
{
QSharedPointer<Data> other;
{
QSharedPointer<Data> ptr = QSharedPointer<Data>(new Data, customDeleterFn);
other = ptr;
QCOMPARE(customDeleterFnCallCount, 0);
}
QCOMPARE(customDeleterFnCallCount, 0);
}
QCOMPARE(customDeleterFnCallCount, 1);
check();
customDeleterFnCallCount = 0;
{
QSharedPointer<Data> other;
{
QSharedPointer<DerivedData> ptr = QSharedPointer<DerivedData>(new DerivedData, customDeleterFn);
other = ptr;
QCOMPARE(customDeleterFnCallCount, 0);
}
QCOMPARE(customDeleterFnCallCount, 0);
}
QCOMPARE(customDeleterFnCallCount, 1);
check();
refcount = 0;
CustomDeleter<Data> dataDeleter;
dataDeleter.callCount = 0;
{
QSharedPointer<Data> ptr = QSharedPointer<Data>(new Data, dataDeleter);
ptr.data();
QCOMPARE(dataDeleter.callCount, 0);
}
QCOMPARE(dataDeleter.callCount, 1);
QCOMPARE(refcount, 1);
check();
dataDeleter.callCount = 0;
{
QSharedPointer<Data> ptr = QSharedPointer<Data>(new Data, dataDeleter);
QSharedPointer<Data> other = ptr;
other.clear();
QCOMPARE(dataDeleter.callCount, 0);
}
QCOMPARE(dataDeleter.callCount, 1);
QCOMPARE(refcount, 1);
check();
dataDeleter.callCount = 0;
{
QSharedPointer<Data> other;
{
QSharedPointer<Data> ptr = QSharedPointer<Data>(new Data, dataDeleter);
other = ptr;
QCOMPARE(dataDeleter.callCount, 0);
}
QCOMPARE(dataDeleter.callCount, 0);
}
QCOMPARE(dataDeleter.callCount, 1);
QCOMPARE(refcount, 1);
check();
dataDeleter.callCount = 0;
{
QSharedPointer<DerivedData> ptr = QSharedPointer<DerivedData>(new DerivedData, dataDeleter);
ptr.data();
QCOMPARE(dataDeleter.callCount, 0);
}
QCOMPARE(dataDeleter.callCount, 1);
QCOMPARE(refcount, 1);
check();
CustomDeleter<DerivedData> derivedDataDeleter;
derivedDataDeleter.callCount = 0;
dataDeleter.callCount = 0;
{
QSharedPointer<DerivedData> ptr = QSharedPointer<DerivedData>(new DerivedData, derivedDataDeleter);
ptr.data();
QCOMPARE(dataDeleter.callCount, 0);
QCOMPARE(derivedDataDeleter.callCount, 0);
}
QCOMPARE(dataDeleter.callCount, 0);
QCOMPARE(derivedDataDeleter.callCount, 1);
QCOMPARE(refcount, 2);
check();
derivedDataDeleter.callCount = 0;
dataDeleter.callCount = 0;
{
QSharedPointer<Data> other;
{
QSharedPointer<DerivedData> ptr = QSharedPointer<DerivedData>(new DerivedData, dataDeleter);
other = ptr;
QCOMPARE(dataDeleter.callCount, 0);
QCOMPARE(derivedDataDeleter.callCount, 0);
}
QCOMPARE(dataDeleter.callCount, 0);
QCOMPARE(derivedDataDeleter.callCount, 0);
}
QCOMPARE(dataDeleter.callCount, 1);
QCOMPARE(derivedDataDeleter.callCount, 0);
QCOMPARE(refcount, 2);
check();
derivedDataDeleter.callCount = 0;
dataDeleter.callCount = 0;
{
QSharedPointer<Data> other;
{
QSharedPointer<DerivedData> ptr = QSharedPointer<DerivedData>(new DerivedData, derivedDataDeleter);
other = ptr;
QCOMPARE(dataDeleter.callCount, 0);
QCOMPARE(derivedDataDeleter.callCount, 0);
}
QCOMPARE(dataDeleter.callCount, 0);
QCOMPARE(derivedDataDeleter.callCount, 0);
}
QCOMPARE(dataDeleter.callCount, 0);
QCOMPARE(derivedDataDeleter.callCount, 1);
QCOMPARE(refcount, 2);
check();
}
void customQObjectDeleterFn(QObject *obj)
{
++customDeleterFnCallCount;
delete obj;
}
void tst_QSharedPointer::creating()
{
Data::generationCounter = Data::destructorCounter = 0;
{
QSharedPointer<Data> ptr = QSharedPointer<Data>::create();
QVERIFY(ptr.data());
QCOMPARE(Data::generationCounter, 1);
QCOMPARE(ptr->generation, 1);
QCOMPARE(Data::destructorCounter, 0);
QCOMPARE(ptr->classLevel(), 1);
ptr.clear();
QCOMPARE(Data::destructorCounter, 1);
}
check();
Data::generationCounter = Data::destructorCounter = 0;
{
QSharedPointer<Data> ptr = QSharedPointer<Data>::create();
QWeakPointer<Data> weakptr = ptr;
QtSharedPointer::ExternalRefCountData *d = refCountData(ptr);
ptr.clear();
QVERIFY(ptr.isNull());
QCOMPARE(Data::destructorCounter, 1);
// valgrind will complain here if something happened to the pointer
QVERIFY(d->weakref == 1);
QVERIFY(d->strongref == 0);
}
check();
Data::generationCounter = Data::destructorCounter = 0;
DerivedData::derivedDestructorCounter = 0;
{
QSharedPointer<Data> ptr = QSharedPointer<DerivedData>::create();
QCOMPARE(ptr->classLevel(), 2);
QCOMPARE(ptr.staticCast<DerivedData>()->moreData, 0);
ptr.clear();
QCOMPARE(Data::destructorCounter, 1);
QCOMPARE(DerivedData::derivedDestructorCounter, 1);
}
check();
{
QSharedPointer<Data> ptr = QSharedPointer<DiffPtrDerivedData>::create();
QCOMPARE(ptr->classLevel(), 3);
QCOMPARE(ptr.staticCast<DiffPtrDerivedData>()->buffer[7]+0, 16-7);
QCOMPARE(ptr.staticCast<DiffPtrDerivedData>()->buffer[3]+0, 16-3);
QCOMPARE(ptr.staticCast<DiffPtrDerivedData>()->buffer[0]+0, 16);
}
check();
{
QSharedPointer<VirtualDerived> ptr = QSharedPointer<VirtualDerived>::create();
QCOMPARE(ptr->classLevel(), 4);
QCOMPARE(ptr->moreData, 0xc0ffee);
QSharedPointer<Data> baseptr = ptr;
QCOMPARE(baseptr->classLevel(), 4);
}
check();
}
void tst_QSharedPointer::creatingQObject()
{
{
QSharedPointer<QObject> ptr = QSharedPointer<QObject>::create();
QCOMPARE(ptr->metaObject(), &QObject::staticMetaObject);
QPointer<QObject> qptr = ptr.data();
ptr.clear();
QVERIFY(qptr.isNull());
}
check();
{
QSharedPointer<QObject> ptr = QSharedPointer<OtherObject>::create();
QCOMPARE(ptr->metaObject(), &OtherObject::staticMetaObject);
}
check();
}
void tst_QSharedPointer::mixTrackingPointerCode()
{
{
// pointer created with tracking
// deleted in code without tracking
QSharedPointer<int> ptr = QSharedPointer<int>(new int(42));
Wrapper w(ptr);
ptr.clear();
}
check();
{
// pointer created without tracking
// deleted in code with tracking
Wrapper w = Wrapper::create();
w.ptr.clear();
}
}
class ThreadData
{
QAtomicInt * volatile ptr;
public:
ThreadData(QAtomicInt *p) : ptr(p) { }
~ThreadData() { ++ptr; }
void ref()
{
// if we're called after the destructor, we'll crash
ptr->ref();
}
};
class StrongThread: public QThread
{
protected:
void run()
{
usleep(rand() % 2000);
ptr->ref();
ptr.clear();
}
public:
QSharedPointer<ThreadData> ptr;
};
class WeakThread: public QThread
{
protected:
void run()
{
usleep(rand() % 2000);
QSharedPointer<ThreadData> ptr = weak;
if (ptr)
ptr->ref();
ptr.clear();
}
public:
QWeakPointer<ThreadData> weak;
};
void tst_QSharedPointer::threadStressTest_data()
{
QTest::addColumn<int>("strongThreadCount");
QTest::addColumn<int>("weakThreadCount");
QTest::newRow("0+0") << 0 << 0;
QTest::newRow("1+0") << 1 << 0;
QTest::newRow("2+0") << 2 << 0;
QTest::newRow("10+0") << 10 << 0;
QTest::newRow("0+1") << 0 << 1;
QTest::newRow("1+1") << 1 << 1;
QTest::newRow("2+10") << 2 << 10;
#ifndef Q_OS_WINCE
// Windows CE cannot run this many threads
QTest::newRow("5+10") << 5 << 10;
QTest::newRow("5+30") << 5 << 30;
QTest::newRow("100+100") << 100 << 100;
#endif
}
void tst_QSharedPointer::threadStressTest()
{
QFETCH(int, strongThreadCount);
QFETCH(int, weakThreadCount);
int guard1[128];
QAtomicInt counter;
int guard2[128];
memset(guard1, 0, sizeof guard1);
memset(guard2, 0, sizeof guard2);
for (int r = 0; r < 5; ++r) {
QVector<QThread*> allThreads(6 * qMax(strongThreadCount, weakThreadCount) + 3, 0);
QSharedPointer<ThreadData> base = QSharedPointer<ThreadData>(new ThreadData(&counter));
counter = 0;
// set the pointers
for (int i = 0; i < strongThreadCount; ++i) {
StrongThread *t = new StrongThread;
t->ptr = base;
allThreads[2 * i] = t;
}
for (int i = 0; i < weakThreadCount; ++i) {
WeakThread *t = new WeakThread;
t->weak = base;
allThreads[6 * i + 3] = t;
}
base.clear();
#ifdef Q_OS_WINCE
srand(QDateTime::currentDateTime().toTime_t());
#else
srand(time(NULL));
#endif
// start threads
for (int i = 0; i < allThreads.count(); ++i)
if (allThreads[i]) allThreads[i]->start();
// wait for them to finish
for (int i = 0; i < allThreads.count(); ++i)
if (allThreads[i]) allThreads[i]->wait();
qDeleteAll(allThreads);
// ensure the guards aren't touched
for (uint i = 0; i < sizeof guard1 / sizeof guard1[0]; ++i)
QVERIFY(!guard1[i]);
for (uint i = 0; i < sizeof guard2 / sizeof guard2[0]; ++i)
QVERIFY(!guard2[i]);
// verify that the count is the right range
int minValue = strongThreadCount;
int maxValue = strongThreadCount + weakThreadCount;
QVERIFY(counter >= minValue);
QVERIFY(counter <= maxValue);
}
}
template<typename Container, bool Ordered>
void hashAndMapTest()
{
typedef typename Container::key_type Key;
typedef typename Container::mapped_type Value;
Container c;
QVERIFY(c.isEmpty());
Key k0;
c.insert(k0, Value(0));
QVERIFY(!c.isEmpty());
typename Container::iterator it;
it = c.find(k0);
QVERIFY(it != c.end());
it = c.find(Key());
QVERIFY(it != c.end());
it = c.find(Key(0));
QVERIFY(it != c.end());
Key k1(new typename Key::value_type(42));
it = c.find(k1);
QVERIFY(it == c.end());
c.insert(k1, Value(42));
it = c.find(k1);
QVERIFY(it != c.end());
QVERIFY(it != c.find(Key()));
if (Ordered) {
QVERIFY(k0 < k1);
it = c.begin();
QCOMPARE(it.key(), k0);
QCOMPARE(it.value(), Value(0));
++it;
QCOMPARE(it.key(), k1);
QCOMPARE(it.value(), Value(42));
++it;
QVERIFY(it == c.end());
}
c.insertMulti(k1, Value(47));
it = c.find(k1);
QVERIFY(it != c.end());
QCOMPARE(it.key(), k1);
++it;
QVERIFY(it != c.end());
QCOMPARE(it.key(), k1);
++it;
QVERIFY(it == c.end());
}
void tst_QSharedPointer::map()
{
hashAndMapTest<QMap<QSharedPointer<int>, int>, true>();
}
void tst_QSharedPointer::hash()
{
hashAndMapTest<QHash<QSharedPointer<int>, int>, false>();
}
void tst_QSharedPointer::validConstructs()
{
{
Data *aData = new Data;
QSharedPointer<Data> ptr1 = QSharedPointer<Data>(aData);
ptr1 = ptr1; // valid
QSharedPointer<Data> ptr2(ptr1);
ptr1 = ptr2;
ptr2 = ptr1;
ptr1 = QSharedPointer<Data>();
ptr1 = ptr2;
}
}
typedef bool (QTest::QExternalTest:: * TestFunction)(const QByteArray &body);
Q_DECLARE_METATYPE(TestFunction)
void tst_QSharedPointer::invalidConstructs_data()
{
QTest::addColumn<TestFunction>("testFunction");
QTest::addColumn<QString>("code");
QTest::newRow("sanity-checking") << &QTest::QExternalTest::tryCompile << "";
// QSharedPointer<void> is not allowed
QTest::newRow("void") << &QTest::QExternalTest::tryCompileFail << "QSharedPointer<void> ptr;";
// implicit initialization
QTest::newRow("implicit-initialization1")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<Data> ptr = new Data;";
QTest::newRow("implicit-initialization2")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<Data> ptr;"
"ptr = new Data;";
QTest::newRow("implicit-initialization3")
<< &QTest::QExternalTest::tryCompileFail
<< "QWeakPointer<Data> ptr = new Data;";
QTest::newRow("implicit-initialization4")
<< &QTest::QExternalTest::tryCompileFail
<< "QWeakPointer<Data> ptr;"
"ptr = new Data;";
// use of forward-declared class
QTest::newRow("forward-declaration")
<< &QTest::QExternalTest::tryRun
<< "forwardDeclaredDestructorRunCount = 0;\n"
"{ QSharedPointer<ForwardDeclared> ptr = QSharedPointer<ForwardDeclared>(forwardPointer()); }\n"
"exit(forwardDeclaredDestructorRunCount);";
QTest::newRow("creating-forward-declaration")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<ForwardDeclared>::create();";
// upcast without cast operator:
QTest::newRow("upcast1")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<Data> baseptr = QSharedPointer<Data>(new DerivedData);\n"
"QSharedPointer<DerivedData> ptr(baseptr);";
QTest::newRow("upcast2")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<Data> baseptr = QSharedPointer<Data>(new DerivedData);\n"
"QSharedPointer<DerivedData> ptr;\n"
"ptr = baseptr;";
// dropping of const
QTest::newRow("const-dropping1")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<const Data> baseptr = QSharedPointer<const Data>(new Data);\n"
"QSharedPointer<Data> ptr(baseptr);";
QTest::newRow("const-dropping2")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<const Data> baseptr = QSharedPointer<const Data>(new Data);\n"
"QSharedPointer<Data> ptr;"
"ptr = baseptr;";
QTest::newRow("const-dropping-static-cast")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<const Data> baseptr = QSharedPointer<const Data>(new Data);\n"
"qSharedPointerCast<DerivedData>(baseptr);";
#ifndef QTEST_NO_RTTI
QTest::newRow("const-dropping-dynamic-cast")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<const Data> baseptr = QSharedPointer<const Data>(new Data);\n"
"qSharedPointerDynamicCast<DerivedData>(baseptr);";
#endif
QTest::newRow("const-dropping-object-cast1")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<const QObject> baseptr = QSharedPointer<const QObject>(new QObject);\n"
"qSharedPointerObjectCast<QCoreApplication>(baseptr);";
QTest::newRow("const-dropping-object-cast2")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<const QObject> baseptr = QSharedPointer<const QObject>(new QObject);\n"
"qobject_cast<QCoreApplication *>(baseptr);";
// arithmethics through automatic cast operators
QTest::newRow("arithmethic1")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<int> a;"
"QSharedPointer<Data> b;\n"
"if (a == b) return;";
QTest::newRow("arithmethic2")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<int> a;"
"QSharedPointer<Data> b;\n"
"if (a + b) return;";
// two objects with the same pointer
QTest::newRow("same-pointer")
<< &QTest::QExternalTest::tryRunFail
<< "Data *aData = new Data;\n"
"QSharedPointer<Data> ptr1 = QSharedPointer<Data>(aData);\n"
"QSharedPointer<Data> ptr2 = QSharedPointer<Data>(aData);\n";
// re-creation:
QTest::newRow("re-creation")
<< &QTest::QExternalTest::tryRunFail
<< "Data *aData = new Data;\n"
"QSharedPointer<Data> ptr1 = QSharedPointer<Data>(aData);"
"ptr1 = QSharedPointer<Data>(aData);";
// any type of cast for unrelated types:
// (we have no reinterpret_cast)
QTest::newRow("invalid-cast1")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<Data> ptr1;\n"
"QSharedPointer<int> ptr2 = qSharedPointerCast<int>(ptr1);";
#ifndef QTEST_NO_RTTI
QTest::newRow("invalid-cast2")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<Data> ptr1;\n"
"QSharedPointer<int> ptr2 = qSharedPointerDynamicCast<int>(ptr1);";
#endif
QTest::newRow("invalid-cast3")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<Data> ptr1;\n"
"QSharedPointer<int> ptr2 = qSharedPointerConstCast<int>(ptr1);";
QTest::newRow("invalid-cast4")
<< &QTest::QExternalTest::tryCompileFail
<< "QSharedPointer<Data> ptr1;\n"
"QSharedPointer<int> ptr2 = qSharedPointerObjectCast<int>(ptr1);";
QTest::newRow("weak-pointer-from-regular-pointer")
<< &QTest::QExternalTest::tryCompileFail
<< "Data *ptr = 0;\n"
"QWeakPointer<Data> weakptr(ptr);\n";
QTest::newRow("shared-pointer-from-unmanaged-qobject")
<< &QTest::QExternalTest::tryRunFail
<< "QObject *ptr = new QObject;\n"
"QWeakPointer<QObject> weak = ptr;\n" // this makes the object unmanaged
"QSharedPointer<QObject> shared(ptr);\n";
QTest::newRow("shared-pointer-implicit-from-uninitialized")
<< &QTest::QExternalTest::tryCompileFail
<< "Data *ptr = 0;\n"
"QSharedPointer<Data> weakptr = Qt::Uninitialized;\n";
}
void tst_QSharedPointer::invalidConstructs()
{
#ifdef Q_CC_MINGW
QSKIP("The maintainer of QSharedPointer: 'We don't know what the problem is so skip the tests.'", SkipAll);
#endif
#ifdef QTEST_CROSS_COMPILED
QSKIP("This test does not work on cross compiled systems", SkipAll);
#endif
QTest::QExternalTest test;
test.setQtModules(QTest::QExternalTest::QtCore);
test.setExtraProgramSources(QStringList() << SRCDIR "forwarddeclared.cpp");
test.setProgramHeader(
"#define QT_SHAREDPOINTER_TRACK_POINTERS\n"
"#define QT_DEBUG\n"
"#include <QtCore/qsharedpointer.h>\n"
"#include <QtCore/qcoreapplication.h>\n"
"\n"
"struct Data { int i; };\n"
"struct DerivedData: public Data { int j; };\n"
"\n"
"extern int forwardDeclaredDestructorRunCount;\n"
"class ForwardDeclared;\n"
"ForwardDeclared *forwardPointer();\n"
);
QFETCH(QString, code);
static bool sane = true;
if (code.isEmpty()) {
static const char snippet[] = "QSharedPointer<Data> baseptr; QSharedPointer<DerivedData> ptr;";
if (!test.tryCompile("")
|| !test.tryRun("")
|| !test.tryRunFail("exit(1);")
|| !test.tryCompile(snippet)
|| !test.tryLink(snippet)
|| !test.tryRun(snippet)) {
sane = false;
qWarning("Sanity checking failed\nCode:\n%s\n",
qPrintable(test.errorReport()));
}
}
if (!sane)
QFAIL("External testing failed sanity checking, cannot proceed");
QFETCH(TestFunction, testFunction);
QByteArray body = code.toLatin1();
bool result = (test.*testFunction)(body);
if (qgetenv("QTEST_EXTERNAL_DEBUG").toInt() > 0) {
qDebug("External test output:");
#ifdef Q_CC_MSVC
// MSVC prints errors to stdout
printf("%s\n", test.standardOutput().constData());
#endif
printf("%s\n", test.standardError().constData());
}
if (!result) {
qWarning("External code testing failed\nCode:\n%s\n", body.constData());
QFAIL("Fail");
}
}
namespace QTBUG11730 {
struct IB
{
virtual ~IB() {}
};
struct IA
{
virtual QSharedPointer<IB> getB() = 0;
};
struct B: public IB
{
IA *m_a;
B(IA *a_a) :m_a(a_a)
{ }
~B()
{
QSharedPointer<IB> b = m_a->getB();
}
};
struct A: public IA
{
QSharedPointer<IB> b;
virtual QSharedPointer<IB> getB()
{
return b;
}
A()
{
b = QSharedPointer<IB>(new B(this));
}
~A()
{
b.clear();
}
};
}
void tst_QSharedPointer::reentrancyWhileDestructing()
{
// this bug is about recursing back into QSharedPointer::clear()
// from inside it
// that is, the destructor of the object being deleted recurses
// into the same QSharedPointer object.
// First reported as QTBUG-11730
QTBUG11730::A obj;
}
QTEST_MAIN(tst_QSharedPointer)
#include "tst_qsharedpointer.moc"