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Fix a crash in QFactoryLoader

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The change in plugin loading has meant that different plugins in the
same plugin folder will not be handled properly when loaded with
different instances of QFactoryLoader.
A solution is to only unload compatability plugins from
QFactoryLoader::update() since they are the only plugins that are
actually loaded in that method.
This auto test shows the error on the current version of QFactoryLoader
and passes with the fix described above.

Change-Id: I12001525d51bb631d6742c5965357598322f247c
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
This commit is contained in:
Jonas Rabbe 2012-03-28 12:07:19 +10:00 committed by Qt by Nokia
parent d3c6664fb0
commit 5185a28139
13 changed files with 478 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/corelib/plugin/qfactoryloader.cpp
View File

@ -188,6 +188,7 @@ void QFactoryLoader::update()
}
if (!metaDataOk) {
if (library->compatPlugin)
library->unload();
library->release();
continue;

1
tests/auto/corelib/plugin/plugin.pro
View File

@ -1,5 +1,6 @@
TEMPLATE=subdirs
SUBDIRS=\
qfactoryloader \
qlibrary \
qplugin \
qpluginloader \

47
tests/auto/corelib/plugin/qfactoryloader/plugin1/plugin1.cpp Normal file
View File

@ -0,0 +1,47 @@
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/qstring.h>
#include "plugin1.h"
QString Plugin1::pluginName() const
{
return QLatin1String("Plugin1 ok");
}

58
tests/auto/corelib/plugin/qfactoryloader/plugin1/plugin1.h Normal file
View File

@ -0,0 +1,58 @@
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef THEPLUGIN_H
#define THEPLUGIN_H
#include <QtCore/qobject.h>
#include <QtCore/qplugin.h>
#include "plugininterface1.h"
class Plugin1 : public QObject, public PluginInterface1
{
Q_OBJECT
Q_PLUGIN_METADATA(IID "org.qt-project.Qt.autotests.plugininterface1")
Q_INTERFACES(PluginInterface1)
public:
virtual QString pluginName() const;
};
#endif // THEPLUGIN_H

10
tests/auto/corelib/plugin/qfactoryloader/plugin1/plugin1.pro Normal file
View File

@ -0,0 +1,10 @@
TEMPLATE = lib
CONFIG += plugin
HEADERS = plugin1.h
SOURCES = plugin1.cpp
TARGET = $$qtLibraryTarget(plugin1)
DESTDIR = ../bin
# This is testdata for the tst_qpluginloader test.
target.path = $$[QT_INSTALL_TESTS]/tst_qfactoryloader/bin
INSTALLS += target

59
tests/auto/corelib/plugin/qfactoryloader/plugin1/plugininterface1.h Normal file
View File

@ -0,0 +1,59 @@
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef PLUGININTERFACE1_H
#define PLUGININTERFACE1_H
#include <QtCore/QtGlobal>
struct PluginInterface1 {
virtual ~PluginInterface1() {}
virtual QString pluginName() const = 0;
};
QT_BEGIN_NAMESPACE
#define PluginInterface1_iid "org.qt-project.Qt.autotests.plugininterface1"
Q_DECLARE_INTERFACE(PluginInterface1, PluginInterface1_iid)
QT_END_NAMESPACE
#endif // PLUGININTERFACE1_H

47
tests/auto/corelib/plugin/qfactoryloader/plugin2/plugin2.cpp Normal file
View File

@ -0,0 +1,47 @@
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/qstring.h>
#include "plugin2.h"
QString Plugin2::pluginName() const
{
return QLatin1String("Plugin2 ok");
}

58
tests/auto/corelib/plugin/qfactoryloader/plugin2/plugin2.h Normal file
View File

@ -0,0 +1,58 @@
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef THEPLUGIN_H
#define THEPLUGIN_H
#include <QtCore/qobject.h>
#include <QtCore/qplugin.h>
#include "plugininterface2.h"
class Plugin2 : public QObject, public PluginInterface2
{
Q_OBJECT
Q_PLUGIN_METADATA(IID "org.qt-project.Qt.autotests.plugininterface2")
Q_INTERFACES(PluginInterface2)
public:
virtual QString pluginName() const;
};
#endif // THEPLUGIN_H

10
tests/auto/corelib/plugin/qfactoryloader/plugin2/plugin2.pro Normal file
View File

@ -0,0 +1,10 @@
TEMPLATE = lib
CONFIG += plugin
HEADERS = plugin2.h
SOURCES = plugin2.cpp
TARGET = $$qtLibraryTarget(plugin2)
DESTDIR = ../bin
# This is testdata for the tst_qpluginloader test.
target.path = $$[QT_INSTALL_TESTS]/tst_qfactoryloader/bin
INSTALLS += target

59
tests/auto/corelib/plugin/qfactoryloader/plugin2/plugininterface2.h Normal file
View File

@ -0,0 +1,59 @@
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef PLUGININTERFACE2_H
#define PLUGININTERFACE2_H
#include <QtCore/QtGlobal>
struct PluginInterface2 {
virtual ~PluginInterface2() {}
virtual QString pluginName() const = 0;
};
QT_BEGIN_NAMESPACE
#define PluginInterface2_iid "org.qt-project.Qt.autotests.plugininterface2"
Q_DECLARE_INTERFACE(PluginInterface2, PluginInterface2_iid)
QT_END_NAMESPACE
#endif // PLUGININTERFACE2_H

15
tests/auto/corelib/plugin/qfactoryloader/qfactoryloader.pro Normal file
View File

@ -0,0 +1,15 @@
QT = core-private
TEMPLATE = subdirs
CONFIG += ordered
SUBDIRS = \
plugin1 \
plugin2 \
test
TARGET = tst_qpluginloader
# no special install rule for subdir
INSTALLS =
CONFIG += parallel_test

21
tests/auto/corelib/plugin/qfactoryloader/test/test.pro Normal file
View File

@ -0,0 +1,21 @@
CONFIG += testcase
TARGET = ../tst_qfactoryloader
QT = core-private testlib
SOURCES = \
../tst_qfactoryloader.cpp
HEADERS = \
../plugin1/plugininterface1.h \
../plugin2/plugininterface2.h
win32 {
CONFIG(debug, debug|release) {
TARGET = ../../debug/tst_qfactoryloader
} else {
TARGET = ../../release/tst_qfactoryloader
}
}
mac: CONFIG -= app_bundle
mac: CONFIG += insignificant_test # QTBUG-22765

91
tests/auto/corelib/plugin/qfactoryloader/tst_qfactoryloader.cpp Normal file
View File

@ -0,0 +1,91 @@
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/qtest.h>
#include <QtCore/qdir.h>
#include <QtCore/qfileinfo.h>
#include <private/qfactoryloader_p.h>
#include "plugin1/plugininterface1.h"
#include "plugin2/plugininterface2.h"
class tst_QFactoryLoader : public QObject
{
Q_OBJECT
public slots:
void initTestCase();
private slots:
void usingTwoFactoriesFromSameDir();
};
static const char binFolderC[] = "bin";
void tst_QFactoryLoader::initTestCase()
{
const QString binFolder = QFINDTESTDATA(binFolderC);
QVERIFY2(!binFolder.isEmpty(), "Unable to locate 'bin' folder");
QCoreApplication::setLibraryPaths(QStringList(QFileInfo(binFolder).absolutePath()));
}
void tst_QFactoryLoader::usingTwoFactoriesFromSameDir()
{
const QString suffix = QLatin1Char('/') + QLatin1String(binFolderC);
QFactoryLoader loader1(PluginInterface1_iid, suffix);
PluginInterface1 *plugin1 = qobject_cast<PluginInterface1 *>(loader1.instance(0));
QVERIFY2(plugin1,
qPrintable(QString::fromLatin1("Cannot load plugin '%1'")
.arg(QLatin1String(PluginInterface1_iid))));
QFactoryLoader loader2(PluginInterface2_iid, suffix);
PluginInterface2 *plugin2 = qobject_cast<PluginInterface2 *>(loader2.instance(0));
QVERIFY2(plugin2,
qPrintable(QString::fromLatin1("Cannot load plugin '%1'")
.arg(QLatin1String(PluginInterface2_iid))));
QCOMPARE(plugin1->pluginName(), QLatin1String("Plugin1 ok"));
QCOMPARE(plugin2->pluginName(), QLatin1String("Plugin2 ok"));
}
QTEST_MAIN(tst_QFactoryLoader)
#include "tst_qfactoryloader.moc"