QTcpServerPrivate: move class definition to the separate header

This allows further QTcpServer inheritance in library. Also,
add protected c'tor for this purpose.

Change-Id: I1a5c0cdedd64bcd41b028e09d7752248506296c7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/network/socket/qtcpserver.cpp

@@ -92,7 +92,8 @@
 */
 
 #include "qtcpserver.h"
-#include "private/qobject_p.h"
+#include "qtcpserver_p.h"
+
 #include "qalgorithms.h"
 #include "qhostaddress.h"
 #include "qlist.h"
@@ -108,43 +109,6 @@ QT_BEGIN_NAMESPACE
         return returnValue; \
     } } while (0)
 
-class QTcpServerPrivate : public QObjectPrivate, public QAbstractSocketEngineReceiver
-{
-    Q_DECLARE_PUBLIC(QTcpServer)
-public:
-    QTcpServerPrivate();
-    ~QTcpServerPrivate();
-
-    QList<QTcpSocket *> pendingConnections;
-
-    quint16 port;
-    QHostAddress address;
-
-    QAbstractSocket::SocketState state;
-    QAbstractSocketEngine *socketEngine;
-
-    QAbstractSocket::SocketError serverSocketError;
-    QString serverSocketErrorString;
-
-    int maxConnections;
-
-#ifndef QT_NO_NETWORKPROXY
-    QNetworkProxy proxy;
-    QNetworkProxy resolveProxy(const QHostAddress &address, quint16 port);
-#endif
-
-    // from QAbstractSocketEngineReceiver
-    void readNotification() Q_DECL_OVERRIDE;
-    void closeNotification() Q_DECL_OVERRIDE { readNotification(); }
-    inline void writeNotification() {}
-    inline void exceptionNotification() {}
-    inline void connectionNotification() {}
-#ifndef QT_NO_NETWORKPROXY
-    inline void proxyAuthenticationRequired(const QNetworkProxy &, QAuthenticator *) {}
-#endif
-
-};
-
 /*! \internal
 */
 QTcpServerPrivate::QTcpServerPrivate()
@@ -257,6 +221,13 @@ QTcpServer::~QTcpServer()
     close();
 }
 
+/*! \internal
+*/
+QTcpServer::QTcpServer(QTcpServerPrivate &dd, QObject *parent)
+    : QObject(dd, parent)
+{
+}
+
 /*!
     Tells the server to listen for incoming connections on address \a
     address and port \a port. If \a port is 0, a port is chosen

src/network/socket/qtcpserver.h

@@ -87,6 +87,8 @@ protected:
     virtual void incomingConnection(qintptr handle);
     void addPendingConnection(QTcpSocket* socket);
 
+    QTcpServer(QTcpServerPrivate &dd, QObject *parent = 0);
+
 Q_SIGNALS:
     void newConnection();
     void acceptError(QAbstractSocket::SocketError socketError);

src/network/socket/qtcpserver_p.h

@@ -0,0 +1,105 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtNetwork 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QTCPSERVER_P_H
+#define QTCPSERVER_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of the QLibrary class.  This header file may change from
+// version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "QtNetwork/qtcpserver.h"
+#include "private/qobject_p.h"
+#include "private/qabstractsocketengine_p.h"
+#include "QtNetwork/qabstractsocket.h"
+#include "qnetworkproxy.h"
+#include "QtCore/qlist.h"
+#include "qhostaddress.h"
+
+QT_BEGIN_NAMESPACE
+
+class QTcpServerPrivate : public QObjectPrivate, public QAbstractSocketEngineReceiver
+{
+    Q_DECLARE_PUBLIC(QTcpServer)
+public:
+    QTcpServerPrivate();
+    ~QTcpServerPrivate();
+
+    QList<QTcpSocket *> pendingConnections;
+
+    quint16 port;
+    QHostAddress address;
+
+    QAbstractSocket::SocketState state;
+    QAbstractSocketEngine *socketEngine;
+
+    QAbstractSocket::SocketError serverSocketError;
+    QString serverSocketErrorString;
+
+    int maxConnections;
+
+#ifndef QT_NO_NETWORKPROXY
+    QNetworkProxy proxy;
+    QNetworkProxy resolveProxy(const QHostAddress &address, quint16 port);
+#endif
+
+    // from QAbstractSocketEngineReceiver
+    void readNotification() Q_DECL_OVERRIDE;
+    void closeNotification() Q_DECL_OVERRIDE { readNotification(); }
+    inline void writeNotification() {}
+    inline void exceptionNotification() {}
+    inline void connectionNotification() {}
+#ifndef QT_NO_NETWORKPROXY
+    inline void proxyAuthenticationRequired(const QNetworkProxy &, QAuthenticator *) {}
+#endif
+
+};
+
+QT_END_NAMESPACE
+
+#endif // QTCPSERVER_P_H

src/network/socket/socket.pri

@@ -12,7 +12,8 @@ HEADERS += socket/qabstractsocketengine_p.h \
            socket/qlocalserver.h \
            socket/qlocalserver_p.h \
            socket/qlocalsocket.h \
-           socket/qlocalsocket_p.h
+           socket/qlocalsocket_p.h \
+           socket/qtcpserver_p.h
 
 SOURCES += socket/qabstractsocketengine.cpp \
            socket/qhttpsocketengine.cpp \