--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/auto/qsharedpointer/tst_qsharedpointer.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,1765 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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/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 swap();
+ void forwardDeclaration1();
+ void forwardDeclaration2();
+ void memoryManagement();
+ void downCast();
+ 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 threadStressTest_data();
+ void threadStressTest();
+ 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()
+ {
+ Q_ASSERT_X(generation > 0, "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::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 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());
+
+ // is 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);
+
+#ifndef QT_NO_PARTIAL_TEMPLATE_SPECIALIZATION
+ // again:
+ ptr = qobject_cast<OtherObject *>(baseptr);
+ QVERIFY(ptr == data);
+
+ // again:
+ ptr = qobject_cast<QSharedPointer<OtherObject> >(baseptr);
+ QVERIFY(ptr == data);
+#endif
+ }
+ 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);
+
+#ifndef QT_NO_PARTIAL_TEMPLATE_SPECIALIZATION
+ // again:
+ ptr = qobject_cast<const OtherObject *>(baseptr);
+ QVERIFY(ptr == data);
+
+ // again:
+ ptr = qobject_cast<QSharedPointer<const OtherObject> >(baseptr);
+ QVERIFY(ptr == data);
+#endif
+ }
+ 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());
+
+#ifndef QT_NO_PARTIAL_TEMPLATE_SPECIALIZATION
+ // again:
+ otherptr = qobject_cast<OtherObject *>(weakptr);
+ QVERIFY(otherptr.isNull());
+
+ // again:
+ otherptr = qobject_cast<QSharedPointer<OtherObject> >(weakptr);
+ QVERIFY(otherptr.isNull());
+#endif
+ }
+ 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;
+ Q_ASSERT(aData == aBase);
+ Q_ASSERT(*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;
+ Q_ASSERT(aData == aBase);
+ Q_ASSERT(*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;
+ Q_ASSERT(aData == aBase);
+ Q_ASSERT(*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;
+ Q_ASSERT(aData == aBase);
+ Q_ASSERT(*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);
+ }
+}
+
+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);";
+#ifndef QT_NO_PARTIAL_TEMPLATE_SPECIALIZATION
+ QTest::newRow("const-dropping-object-cast2")
+ << &QTest::QExternalTest::tryCompileFail
+ << "QSharedPointer<const QObject> baseptr = QSharedPointer<const QObject>(new QObject);\n"
+ "qobject_cast<QCoreApplication *>(baseptr);";
+#endif
+
+ // 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;";
+
+#if QT_VERSION >= 0x040600
+ // 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);";
+#endif
+
+ // 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.setDebugMode(true);
+ test.setQtModules(QTest::QExternalTest::QtCore);
+ test.setExtraProgramSources(QStringList() << SRCDIR "forwarddeclared.cpp");
+ test.setProgramHeader(
+ "#define QT_SHAREDPOINTER_TRACK_POINTERS\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");
+ }
+}
+
+QTEST_MAIN(tst_QSharedPointer)
+
+#include "tst_qsharedpointer.moc"