Fix build with 'udpsocket' feature disabled

Wrap related code in QNativeSocketEngine and the tuiotouch
plugin in conditionals.

Change-Id: Ic6861b1c6a9e041fa8a50f96149f7280473a9fba
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/network/socket/qnativesocketengine.cpp

@@ -651,6 +651,24 @@ int QNativeSocketEngine::accept()
     return d->nativeAccept();
 }
 
+/*!
+    Returns the number of bytes that are currently available for
+    reading. On error, -1 is returned.
+
+    For UDP sockets, this function returns the accumulated size of all
+    pending datagrams, and it is therefore more useful for UDP sockets
+    to call hasPendingDatagrams() and pendingDatagramSize().
+*/
+qint64 QNativeSocketEngine::bytesAvailable() const
+{
+    Q_D(const QNativeSocketEngine);
+    Q_CHECK_VALID_SOCKETLAYER(QNativeSocketEngine::bytesAvailable(), -1);
+    Q_CHECK_NOT_STATE(QNativeSocketEngine::bytesAvailable(), QAbstractSocket::UnconnectedState, -1);
+
+    return d->nativeBytesAvailable();
+}
+
+#ifndef QT_NO_UDPSOCKET
 #ifndef QT_NO_NETWORKINTERFACE
 
 /*!
@@ -712,23 +730,6 @@ bool QNativeSocketEngine::setMulticastInterface(const QNetworkInterface &iface)
 
 #endif // QT_NO_NETWORKINTERFACE
 
-/*!
-    Returns the number of bytes that are currently available for
-    reading. On error, -1 is returned.
-
-    For UDP sockets, this function returns the accumulated size of all
-    pending datagrams, and it is therefore more useful for UDP sockets
-    to call hasPendingDatagrams() and pendingDatagramSize().
-*/
-qint64 QNativeSocketEngine::bytesAvailable() const
-{
-    Q_D(const QNativeSocketEngine);
-    Q_CHECK_VALID_SOCKETLAYER(QNativeSocketEngine::bytesAvailable(), -1);
-    Q_CHECK_NOT_STATE(QNativeSocketEngine::bytesAvailable(), QAbstractSocket::UnconnectedState, -1);
-
-    return d->nativeBytesAvailable();
-}
-
 /*!
     Returns \c true if there is at least one datagram pending. This
     function is only called by UDP sockets, where a datagram can have
@@ -810,6 +811,7 @@ qint64 QNativeSocketEngine::writeDatagram(const char *data, qint64 size,
     Q_CHECK_TYPE(QNativeSocketEngine::writeDatagram(), QAbstractSocket::UdpSocket, -1);
     return d->nativeSendDatagram(data, size, d->adjustAddressProtocol(host), port);
 }
+#endif // QT_NO_UDPSOCKET
 
 /*!
     Writes a block of \a size bytes from \a data to the socket.

src/network/socket/qnativesocketengine_p.h

@@ -119,6 +119,12 @@ public:
     int accept() Q_DECL_OVERRIDE;
     void close() Q_DECL_OVERRIDE;
 
+    qint64 bytesAvailable() const Q_DECL_OVERRIDE;
+
+    qint64 read(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
+    qint64 write(const char *data, qint64 len) Q_DECL_OVERRIDE;
+
+#ifndef QT_NO_UDPSOCKET
 #ifndef QT_NO_NETWORKINTERFACE
     bool joinMulticastGroup(const QHostAddress &groupAddress,
                             const QNetworkInterface &iface) Q_DECL_OVERRIDE;
@@ -128,17 +134,13 @@ public:
     bool setMulticastInterface(const QNetworkInterface &iface) Q_DECL_OVERRIDE;
 #endif
 
-    qint64 bytesAvailable() const Q_DECL_OVERRIDE;
-
-    qint64 read(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
-    qint64 write(const char *data, qint64 len) Q_DECL_OVERRIDE;
-
     qint64 readDatagram(char *data, qint64 maxlen, QHostAddress *addr = 0,
                             quint16 *port = 0) Q_DECL_OVERRIDE;
     qint64 writeDatagram(const char *data, qint64 len, const QHostAddress &addr,
                              quint16 port) Q_DECL_OVERRIDE;
     bool hasPendingDatagrams() const Q_DECL_OVERRIDE;
     qint64 pendingDatagramSize() const Q_DECL_OVERRIDE;
+#endif // QT_NO_UDPSOCKET
 
     qint64 bytesToWrite() const Q_DECL_OVERRIDE;
 

src/plugins/generic/generic.pro

@@ -1,5 +1,7 @@
 TEMPLATE = subdirs
 
+load(qfeatures)
+
 contains(QT_CONFIG, evdev) {
     SUBDIRS += evdevmouse evdevtouch evdevkeyboard evdevtablet
 }
@@ -8,7 +10,9 @@ contains(QT_CONFIG, tslib) {
     SUBDIRS += tslib
 }
 
-SUBDIRS += tuiotouch
+!contains(QT_DISABLED_FEATURES, udpsocket) {
+    SUBDIRS += tuiotouch
+}
 
 contains(QT_CONFIG, libinput) {
     SUBDIRS += libinput