Add user configurable mask generation

Created a QMaskGenerator abstract base class to serve as a basis for
user specific mask generators. Added the possibility to override the
default mask generation in QWebSocket.

Change-Id: Iaa02b44193f854d103b5f352617789175fe61f89
Reviewed-by: Kurt Pattyn <pattyn.kurt@gmail.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/src/websockets/qdefaultmaskgenerator_p.cpp b/src/websockets/qdefaultmaskgenerator_p.cpp
new file mode 100644
index 0000000..2d8b1a2
--- /dev/null
+++ b/src/websockets/qdefaultmaskgenerator_p.cpp
@@ -0,0 +1,68 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtWebSockets module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdefaultmaskgenerator_p.h"
+#include <QDateTime>
+#include <limits>
+
+QT_BEGIN_NAMESPACE
+
+QDefaultMaskGenerator::QDefaultMaskGenerator(QObject *parent) :
+    QMaskGenerator(parent)
+{
+}
+
+QDefaultMaskGenerator::~QDefaultMaskGenerator()
+{
+}
+
+bool QDefaultMaskGenerator::seed()
+{
+    qsrand(static_cast<uint>(QDateTime::currentMSecsSinceEpoch()));
+    return true;
+}
+
+quint32 QDefaultMaskGenerator::nextMask()
+{
+    return quint32((double(qrand()) / RAND_MAX) * std::numeric_limits<quint32>::max());
+}
+
+QT_END_NAMESPACE