--- /dev/null
+/****************************************************************************
+**
+** 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 QtCore module 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/qarraydata.h>
+
+QT_BEGIN_NAMESPACE
+
+const QArrayData QArrayData::shared_null = { Q_REFCOUNT_INITIALIZER(-1), 0, 0, 0, 0 };
+const QArrayData QArrayData::shared_empty = { Q_REFCOUNT_INITIALIZER(-1), 0, 0, 0, 0 };
+
+QT_END_NAMESPACE
--- /dev/null
+/****************************************************************************
+**
+** 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 QtCore module 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 QARRAYDATA_H
+#define QARRAYDATA_H
+
+#include <QtCore/qrefcount.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+struct Q_CORE_EXPORT QArrayData
+{
+ QtPrivate::RefCount ref;
+ int size;
+ uint alloc : 31;
+ uint capacityReserved : 1;
+
+ qptrdiff offset; // in bytes from beginning of header
+
+ void *data()
+ {
+ Q_ASSERT(size == 0
+ || offset < 0 || size_t(offset) >= sizeof(QArrayData));
+ return reinterpret_cast<char *>(this) + offset;
+ }
+
+ const void *data() const
+ {
+ Q_ASSERT(size == 0
+ || offset < 0 || size_t(offset) >= sizeof(QArrayData));
+ return reinterpret_cast<const char *>(this) + offset;
+ }
+
+ static const QArrayData shared_null;
+ static const QArrayData shared_empty;
+};
+
+template <class T, size_t N>
+struct QStaticArrayData
+{
+ QArrayData header;
+ T data[N];
+};
+
+#define Q_STATIC_ARRAY_DATA_HEADER_INITIALIZER(type, size) { \
+ Q_REFCOUNT_INITIALIZER(-1), size, 0, 0, \
+ (sizeof(QArrayData) + (Q_ALIGNOF(type) - 1)) \
+ & ~(Q_ALIGNOF(type) - 1) } \
+ /**/
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // include guard
--- /dev/null
+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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/QtTest>
+#include <QtCore/qarraydata.h>
+
+class tst_QArrayData : public QObject
+{
+ Q_OBJECT
+
+private slots:
+ void referenceCounting();
+ void sharedNullEmpty();
+ void staticData();
+};
+
+void tst_QArrayData::referenceCounting()
+{
+ {
+ // Reference counting initialized to 1 (owned)
+ QArrayData array = { Q_REFCOUNT_INITIALIZER(1), 0, 0, 0, 0 };
+
+ QCOMPARE(int(array.ref), 1);
+
+ array.ref.ref();
+ QCOMPARE(int(array.ref), 2);
+
+ QVERIFY(array.ref.deref());
+ QCOMPARE(int(array.ref), 1);
+
+ array.ref.ref();
+ QCOMPARE(int(array.ref), 2);
+
+ QVERIFY(array.ref.deref());
+ QCOMPARE(int(array.ref), 1);
+
+ QVERIFY(!array.ref.deref());
+ QCOMPARE(int(array.ref), 0);
+
+ // Now would be a good time to free/release allocated data
+ }
+
+ {
+ // Reference counting initialized to -1 (static read-only data)
+ QArrayData array = { Q_REFCOUNT_INITIALIZER(-1), 0, 0, 0, 0 };
+
+ QCOMPARE(int(array.ref), -1);
+
+ array.ref.ref();
+ QCOMPARE(int(array.ref), -1);
+
+ QVERIFY(array.ref.deref());
+ QCOMPARE(int(array.ref), -1);
+ }
+}
+
+void tst_QArrayData::sharedNullEmpty()
+{
+ QArrayData *null = const_cast<QArrayData *>(&QArrayData::shared_null);
+ QArrayData *empty = const_cast<QArrayData *>(&QArrayData::shared_empty);
+
+ QCOMPARE(int(null->ref), -1);
+ QCOMPARE(int(empty->ref), -1);
+
+ null->ref.ref();
+ empty->ref.ref();
+
+ QCOMPARE(int(null->ref), -1);
+ QCOMPARE(int(empty->ref), -1);
+
+ QVERIFY(null->ref.deref());
+ QVERIFY(empty->ref.deref());
+
+ QCOMPARE(int(null->ref), -1);
+ QCOMPARE(int(empty->ref), -1);
+
+ QVERIFY(null != empty);
+
+ QCOMPARE(null->size, 0);
+ QCOMPARE(null->alloc, 0u);
+ QCOMPARE(null->capacityReserved, 0u);
+
+ QCOMPARE(empty->size, 0);
+ QCOMPARE(empty->alloc, 0u);
+ QCOMPARE(empty->capacityReserved, 0u);
+}
+
+void tst_QArrayData::staticData()
+{
+ QStaticArrayData<char, 10> charArray = {
+ Q_STATIC_ARRAY_DATA_HEADER_INITIALIZER(char, 10),
+ { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j' }
+ };
+ QStaticArrayData<int, 10> intArray = {
+ Q_STATIC_ARRAY_DATA_HEADER_INITIALIZER(int, 10),
+ { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }
+ };
+ QStaticArrayData<double, 10> doubleArray = {
+ Q_STATIC_ARRAY_DATA_HEADER_INITIALIZER(double, 10),
+ { 0.f, 1.f, 2.f, 3.f, 4.f, 5.f, 6.f, 7.f, 8.f, 9.f }
+ };
+
+ QCOMPARE(charArray.header.size, 10);
+ QCOMPARE(intArray.header.size, 10);
+ QCOMPARE(doubleArray.header.size, 10);
+
+ QCOMPARE(charArray.header.data(), reinterpret_cast<void *>(&charArray.data));
+ QCOMPARE(intArray.header.data(), reinterpret_cast<void *>(&intArray.data));
+ QCOMPARE(doubleArray.header.data(), reinterpret_cast<void *>(&doubleArray.data));
+}
+
+QTEST_APPLESS_MAIN(tst_QArrayData)
+#include "tst_qarraydata.moc"
projects / profile / ivi / qtbase.git / commitdiff