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diff --git a/src/corelib/kernel/qcfsocketnotifier_p.h b/src/corelib/kernel/qcfsocketnotifier_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCFSOCKETNOTIFIER_P_H
+#define QCFSOCKETNOTIFIER_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qabstracteventdispatcher.h>
+#include <QtCore/qhash.h>
+
+#include <CoreFoundation/CoreFoundation.h>
+
+QT_BEGIN_NAMESPACE
+
+struct MacSocketInfo {
+    MacSocketInfo() : socket(0), runloop(0), readNotifier(0), writeNotifier(0),
+        readEnabled(false), writeEnabled(false) {}
+    CFSocketRef socket;
+    CFRunLoopSourceRef runloop;
+    QObject *readNotifier;
+    QObject *writeNotifier;
+    bool readEnabled;
+    bool writeEnabled;
+};
+typedef QHash<int, MacSocketInfo *> MacSocketHash;
+
+typedef void (*MaybeCancelWaitForMoreEventsFn)(QAbstractEventDispatcher *hostEventDispacher);
+
+// The CoreFoundationSocketNotifier class implements socket notifiers support using
+// CFSocket for event dispatchers running on top of the Core Foundation run loop system.
+// (currently Mac and iOS)
+//
+// The principal functions are registerSocketNotifier() and unregisterSocketNotifier().
+//
+// setHostEventDispatcher() should be called at startup.
+// removeSocketNotifiers() should be called at shutdown.
+//
+class Q_CORE_EXPORT QCFSocketNotifier
+{
+public:
+    QCFSocketNotifier();
+    ~QCFSocketNotifier();
+    void setHostEventDispatcher(QAbstractEventDispatcher *hostEventDispacher);
+    void setMaybeCancelWaitForMoreEventsCallback(MaybeCancelWaitForMoreEventsFn callBack);
+    void registerSocketNotifier(QSocketNotifier *notifier);
+    void unregisterSocketNotifier(QSocketNotifier *notifier);
+    void removeSocketNotifiers();
+
+private:
+    void destroyRunLoopObserver();
+
+    static void unregisterSocketInfo(MacSocketInfo *socketInfo);
+    static void enableSocketNotifiers(CFRunLoopObserverRef ref, CFRunLoopActivity activity, void *info);
+
+    MacSocketHash macSockets;
+    QAbstractEventDispatcher *eventDispatcher;
+    MaybeCancelWaitForMoreEventsFn maybeCancelWaitForMoreEvents;
+    CFRunLoopObserverRef enableNotifiersObserver;
+
+    friend void qt_mac_socket_callback(CFSocketRef, CFSocketCallBackType, CFDataRef, const void *, void *);
+};
+
+QT_END_NAMESPACE
+
+#endif