4 files changed, 671 insertions, 0 deletions
diff --git a/examples/network/blockingfortuneclient.py b/examples/network/blockingfortuneclient.py
new file mode 100644
index 000000000..8e73af0f0
--- /dev/null
+++ b/examples/network/blockingfortuneclient.py
@@ -0,0 +1,225 @@
+#!/usr/bin/env python
+
+#############################################################################
+##
+## Copyright (C) 2013 Riverbank Computing Limited.
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the PySide examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+##   * Redistributions of source code must retain the above copyright
+##     notice, this list of conditions and the following disclaimer.
+##   * Redistributions in binary form must reproduce the above copyright
+##     notice, this list of conditions and the following disclaimer in
+##     the documentation and/or other materials provided with the
+##     distribution.
+##   * Neither the name of The Qt Company Ltd nor the names of its
+##     contributors may be used to endorse or promote products derived
+##     from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""PySide2 port of the network/blockingfortunclient example from Qt v5.x, originating from PyQt"""
+
+from PySide2.QtCore import (Signal, QDataStream, QMutex, QMutexLocker,
+        QThread, QWaitCondition)
+from PySide2.QtGui import QIntValidator
+from PySide2.QtWidgets import (QApplication, QDialogButtonBox, QGridLayout,
+        QLabel, QLineEdit, QMessageBox, QPushButton, QWidget)
+from PySide2.QtNetwork import (QAbstractSocket, QHostAddress, QNetworkInterface,
+        QTcpSocket)
+
+
+class FortuneThread(QThread):
+    newFortune = Signal(str)
+
+    error = Signal(int, str)
+
+    def __init__(self, parent=None):
+        super(FortuneThread, self).__init__(parent)
+
+        self.quit = False
+        self.hostName = ''
+        self.cond = QWaitCondition()
+        self.mutex = QMutex()
+        self.port = 0
+
+    def __del__(self):
+        self.mutex.lock()
+        self.quit = True
+        self.cond.wakeOne()
+        self.mutex.unlock()
+        self.wait()
+
+    def requestNewFortune(self, hostname, port):
+        locker = QMutexLocker(self.mutex)
+        self.hostName = hostname
+        self.port = port
+        if not self.isRunning():
+            self.start()
+        else:
+            self.cond.wakeOne()
+
+    def run(self):
+        self.mutex.lock()
+        serverName = self.hostName
+        serverPort = self.port
+        self.mutex.unlock()
+
+        while not self.quit:
+            Timeout = 5 * 1000
+
+            socket = QTcpSocket()
+            socket.connectToHost(serverName, serverPort)
+
+            if not socket.waitForConnected(Timeout):
+                self.error.emit(socket.error(), socket.errorString())
+                return
+
+            while socket.bytesAvailable() < 2:
+                if not socket.waitForReadyRead(Timeout):
+                    self.error.emit(socket.error(), socket.errorString())
+                    return
+
+            instr = QDataStream(socket)
+            instr.setVersion(QDataStream.Qt_4_0)
+            blockSize = instr.readUInt16()
+
+            while socket.bytesAvailable() < blockSize:
+                if not socket.waitForReadyRead(Timeout):
+                    self.error.emit(socket.error(), socket.errorString())
+                    return
+
+            self.mutex.lock()
+            fortune = instr.readQString()
+            self.newFortune.emit(fortune)
+
+            self.cond.wait(self.mutex)
+            serverName = self.hostName
+            serverPort = self.port
+            self.mutex.unlock()
+
+
+class BlockingClient(QWidget):
+    def __init__(self, parent=None):
+        super(BlockingClient, self).__init__(parent)
+
+        self.thread = FortuneThread()
+        self.currentFortune = ''
+
+        hostLabel = QLabel("&Server name:")
+        portLabel = QLabel("S&erver port:")
+
+        for ipAddress in QNetworkInterface.allAddresses():
+            if ipAddress != QHostAddress.LocalHost and ipAddress.toIPv4Address() != 0:
+                break
+        else:
+            ipAddress = QHostAddress(QHostAddress.LocalHost)
+
+        ipAddress = ipAddress.toString()
+
+        self.hostLineEdit = QLineEdit(ipAddress)
+        self.portLineEdit = QLineEdit()
+        self.portLineEdit.setValidator(QIntValidator(1, 65535, self))
+
+        hostLabel.setBuddy(self.hostLineEdit)
+        portLabel.setBuddy(self.portLineEdit)
+
+        self.statusLabel = QLabel(
+                "This example requires that you run the Fortune Server example as well.")
+        self.statusLabel.setWordWrap(True)
+
+        self.getFortuneButton = QPushButton("Get Fortune")
+        self.getFortuneButton.setDefault(True)
+        self.getFortuneButton.setEnabled(False)
+
+        quitButton = QPushButton("Quit")
+
+        buttonBox = QDialogButtonBox()
+        buttonBox.addButton(self.getFortuneButton, QDialogButtonBox.ActionRole)
+        buttonBox.addButton(quitButton, QDialogButtonBox.RejectRole)
+
+        self.getFortuneButton.clicked.connect(self.requestNewFortune)
+        quitButton.clicked.connect(self.close)
+        self.hostLineEdit.textChanged.connect(self.enableGetFortuneButton)
+        self.portLineEdit.textChanged.connect(self.enableGetFortuneButton)
+        self.thread.newFortune.connect(self.showFortune)
+        self.thread.error.connect(self.displayError)
+
+        mainLayout = QGridLayout()
+        mainLayout.addWidget(hostLabel, 0, 0)
+        mainLayout.addWidget(self.hostLineEdit, 0, 1)
+        mainLayout.addWidget(portLabel, 1, 0)
+        mainLayout.addWidget(self.portLineEdit, 1, 1)
+        mainLayout.addWidget(self.statusLabel, 2, 0, 1, 2)
+        mainLayout.addWidget(buttonBox, 3, 0, 1, 2)
+        self.setLayout(mainLayout)
+
+        self.setWindowTitle("Blocking Fortune Client")
+        self.portLineEdit.setFocus()
+
+    def requestNewFortune(self):
+        self.getFortuneButton.setEnabled(False)
+        self.thread.requestNewFortune(self.hostLineEdit.text(),
+                int(self.portLineEdit.text()))
+
+    def showFortune(self, nextFortune):
+        if nextFortune == self.currentFortune:
+            self.requestNewFortune()
+            return
+
+        self.currentFortune = nextFortune
+        self.statusLabel.setText(self.currentFortune)
+        self.getFortuneButton.setEnabled(True)
+
+    def displayError(self, socketError, message):
+        if socketError == QAbstractSocket.HostNotFoundError:
+            QMessageBox.information(self, "Blocking Fortune Client",
+                    "The host was not found. Please check the host and port "
+                    "settings.")
+        elif socketError == QAbstractSocket.ConnectionRefusedError:
+            QMessageBox.information(self, "Blocking Fortune Client",
+                    "The connection was refused by the peer. Make sure the "
+                    "fortune server is running, and check that the host name "
+                    "and port settings are correct.")
+        else:
+            QMessageBox.information(self, "Blocking Fortune Client",
+                    "The following error occurred: %s." % message)
+
+        self.getFortuneButton.setEnabled(True)
+
+    def enableGetFortuneButton(self):
+        self.getFortuneButton.setEnabled(self.hostLineEdit.text() != '' and
+                self.portLineEdit.text() != '')
+
+
+if __name__ == '__main__':
+
+    import sys
+
+    app = QApplication(sys.argv)
+    client = BlockingClient()
+    client.show()
+    sys.exit(app.exec_())
diff --git a/examples/network/fortuneclient.py b/examples/network/fortuneclient.py
new file mode 100755
index 000000000..3ec5623b8
--- /dev/null
+++ b/examples/network/fortuneclient.py
@@ -0,0 +1,168 @@
+#!/usr/bin/env python
+
+#############################################################################
+##
+## Copyright (C) 2013 Riverbank Computing Limited.
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the PySide examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+##   * Redistributions of source code must retain the above copyright
+##     notice, this list of conditions and the following disclaimer.
+##   * Redistributions in binary form must reproduce the above copyright
+##     notice, this list of conditions and the following disclaimer in
+##     the documentation and/or other materials provided with the
+##     distribution.
+##   * Neither the name of The Qt Company Ltd nor the names of its
+##     contributors may be used to endorse or promote products derived
+##     from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""PySide2 port of the network/fortuneclient example from Qt v5.x"""
+
+from PySide2 import QtCore, QtGui, QtWidgets, QtNetwork
+
+
+class Client(QtWidgets.QDialog):
+    def __init__(self, parent=None):
+        super(Client, self).__init__(parent)
+
+        self.blockSize = 0
+        self.currentFortune = ''
+
+        hostLabel = QtWidgets.QLabel("&Server name:")
+        portLabel = QtWidgets.QLabel("S&erver port:")
+
+        self.hostLineEdit = QtWidgets.QLineEdit('Localhost')
+        self.portLineEdit = QtWidgets.QLineEdit()
+        self.portLineEdit.setValidator(QtGui.QIntValidator(1, 65535, self))
+
+        hostLabel.setBuddy(self.hostLineEdit)
+        portLabel.setBuddy(self.portLineEdit)
+
+        self.statusLabel = QtWidgets.QLabel("This examples requires that you run "
+                "the Fortune Server example as well.")
+
+        self.getFortuneButton = QtWidgets.QPushButton("Get Fortune")
+        self.getFortuneButton.setDefault(True)
+        self.getFortuneButton.setEnabled(False)
+
+        quitButton = QtWidgets.QPushButton("Quit")
+
+        buttonBox = QtWidgets.QDialogButtonBox()
+        buttonBox.addButton(self.getFortuneButton,
+                QtWidgets.QDialogButtonBox.ActionRole)
+        buttonBox.addButton(quitButton, QtWidgets.QDialogButtonBox.RejectRole)
+
+        self.tcpSocket = QtNetwork.QTcpSocket(self)
+
+        self.hostLineEdit.textChanged.connect(self.enableGetFortuneButton)
+        self.portLineEdit.textChanged.connect(self.enableGetFortuneButton)
+        self.getFortuneButton.clicked.connect(self.requestNewFortune)
+        quitButton.clicked.connect(self.close)
+        self.tcpSocket.readyRead.connect(self.readFortune)
+        self.tcpSocket.error.connect(self.displayError)
+
+        mainLayout = QtWidgets.QGridLayout()
+        mainLayout.addWidget(hostLabel, 0, 0)
+        mainLayout.addWidget(self.hostLineEdit, 0, 1)
+        mainLayout.addWidget(portLabel, 1, 0)
+        mainLayout.addWidget(self.portLineEdit, 1, 1)
+        mainLayout.addWidget(self.statusLabel, 2, 0, 1, 2)
+        mainLayout.addWidget(buttonBox, 3, 0, 1, 2)
+        self.setLayout(mainLayout)
+
+        self.setWindowTitle("Fortune Client")
+        self.portLineEdit.setFocus()
+
+    def requestNewFortune(self):
+        self.getFortuneButton.setEnabled(False)
+        self.blockSize = 0
+        self.tcpSocket.abort()
+        self.tcpSocket.connectToHost(self.hostLineEdit.text(),
+                int(self.portLineEdit.text()))
+
+    def readFortune(self):
+        instr = QtCore.QDataStream(self.tcpSocket)
+        instr.setVersion(QtCore.QDataStream.Qt_4_0)
+
+        if self.blockSize == 0:
+            if self.tcpSocket.bytesAvailable() < 2:
+                return
+
+            self.blockSize = instr.readUInt16()
+
+        if self.tcpSocket.bytesAvailable() < self.blockSize:
+            return
+
+        nextFortune = instr.readString()
+
+        try:
+            # Python v3.
+            nextFortune = str(nextFortune, encoding='ascii')
+        except TypeError:
+            # Python v2.
+            pass
+
+        if nextFortune == self.currentFortune:
+            QtCore.QTimer.singleShot(0, self.requestNewFortune)
+            return
+
+        self.currentFortune = nextFortune
+        self.statusLabel.setText(self.currentFortune)
+        self.getFortuneButton.setEnabled(True)
+
+    def displayError(self, socketError):
+        if socketError == QtNetwork.QAbstractSocket.RemoteHostClosedError:
+            pass
+        elif socketError == QtNetwork.QAbstractSocket.HostNotFoundError:
+            QtWidgets.QMessageBox.information(self, "Fortune Client",
+                    "The host was not found. Please check the host name and "
+                    "port settings.")
+        elif socketError == QtNetwork.QAbstractSocket.ConnectionRefusedError:
+            QtWidgets.QMessageBox.information(self, "Fortune Client",
+                    "The connection was refused by the peer. Make sure the "
+                    "fortune server is running, and check that the host name "
+                    "and port settings are correct.")
+        else:
+            QtWidgets.QMessageBox.information(self, "Fortune Client",
+                    "The following error occurred: %s." % self.tcpSocket.errorString())
+
+        self.getFortuneButton.setEnabled(True)
+
+    def enableGetFortuneButton(self):
+        self.getFortuneButton.setEnabled(bool(self.hostLineEdit.text() and
+                self.portLineEdit.text()))
+
+
+if __name__ == '__main__':
+
+    import sys
+
+    app = QtWidgets.QApplication(sys.argv)
+    client = Client()
+    client.show()
+    sys.exit(client.exec_())
diff --git a/examples/network/fortuneserver.py b/examples/network/fortuneserver.py
new file mode 100755
index 000000000..1c08f6e82
--- /dev/null
+++ b/examples/network/fortuneserver.py
@@ -0,0 +1,125 @@
+#!/usr/bin/env python
+
+#############################################################################
+##
+## Copyright (C) 2013 Riverbank Computing Limited.
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the PySide examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+##   * Redistributions of source code must retain the above copyright
+##     notice, this list of conditions and the following disclaimer.
+##   * Redistributions in binary form must reproduce the above copyright
+##     notice, this list of conditions and the following disclaimer in
+##     the documentation and/or other materials provided with the
+##     distribution.
+##   * Neither the name of The Qt Company Ltd nor the names of its
+##     contributors may be used to endorse or promote products derived
+##     from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""PySide2 port of the network/fortuneserver example from Qt v5.x"""
+
+import random
+
+from PySide2 import QtCore, QtGui, QtWidgets, QtNetwork
+
+
+class Server(QtWidgets.QDialog):
+    def __init__(self, parent=None):
+        super(Server, self).__init__(parent)
+
+        statusLabel = QtWidgets.QLabel()
+        quitButton = QtWidgets.QPushButton("Quit")
+        quitButton.setAutoDefault(False)
+
+        self.tcpServer = QtNetwork.QTcpServer(self)
+        if not self.tcpServer.listen():
+            QtWidgets.QMessageBox.critical(self, "Fortune Server",
+                    "Unable to start the server: %s." % self.tcpServer.errorString())
+            self.close()
+            return
+
+        statusLabel.setText("The server is running on port %d.\nRun the "
+                "Fortune Client example now." % self.tcpServer.serverPort())
+
+        self.fortunes = (
+                "You've been leading a dog's life. Stay off the furniture.",
+                "You've got to think about tomorrow.",
+                "You will be surprised by a loud noise.",
+                "You will feel hungry again in another hour.",
+                "You might have mail.",
+                "You cannot kill time without injuring eternity.",
+                "Computers are not intelligent. They only think they are.")
+
+        quitButton.clicked.connect(self.close)
+        self.tcpServer.newConnection.connect(self.sendFortune)
+
+        buttonLayout = QtWidgets.QHBoxLayout()
+        buttonLayout.addStretch(1)
+        buttonLayout.addWidget(quitButton)
+        buttonLayout.addStretch(1)
+
+        mainLayout = QtWidgets.QVBoxLayout()
+        mainLayout.addWidget(statusLabel)
+        mainLayout.addLayout(buttonLayout)
+        self.setLayout(mainLayout)
+
+        self.setWindowTitle("Fortune Server")
+
+    def sendFortune(self):
+        block = QtCore.QByteArray()
+        out = QtCore.QDataStream(block, QtCore.QIODevice.WriteOnly)
+        out.setVersion(QtCore.QDataStream.Qt_4_0)
+        out.writeUInt16(0)
+        fortune = self.fortunes[random.randint(0, len(self.fortunes) - 1)]
+
+        try:
+            # Python v3.
+            fortune = bytes(fortune, encoding='ascii')
+        except:
+            # Python v2.
+            pass
+
+        out.writeString(fortune)
+        out.device().seek(0)
+        out.writeUInt16(block.size() - 2)
+
+        clientConnection = self.tcpServer.nextPendingConnection()
+        clientConnection.disconnected.connect(clientConnection.deleteLater)
+
+        clientConnection.write(block)
+        clientConnection.disconnectFromHost()
+
+
+if __name__ == '__main__':
+
+    import sys
+
+    app = QtWidgets.QApplication(sys.argv)
+    server = Server()
+    random.seed(None)
+    sys.exit(server.exec_())
diff --git a/examples/network/threadedfortuneserver.py b/examples/network/threadedfortuneserver.py
new file mode 100755
index 000000000..95452e7e9
--- /dev/null
+++ b/examples/network/threadedfortuneserver.py
@@ -0,0 +1,153 @@
+#!/usr/bin/env python
+
+#############################################################################
+##
+## Copyright (C) 2013 Riverbank Computing Limited.
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the PySide examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+##   * Redistributions of source code must retain the above copyright
+##     notice, this list of conditions and the following disclaimer.
+##   * Redistributions in binary form must reproduce the above copyright
+##     notice, this list of conditions and the following disclaimer in
+##     the documentation and/or other materials provided with the
+##     distribution.
+##   * Neither the name of The Qt Company Ltd nor the names of its
+##     contributors may be used to endorse or promote products derived
+##     from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""PySide2 port of the network/threadedfortuneserver example from Qt v5.x, originating from PyQt"""
+
+import random
+
+from PySide2.QtCore import (Signal, QByteArray, QDataStream, QIODevice,
+        QThread, Qt)
+from PySide2.QtWidgets import (QApplication, QDialog, QHBoxLayout, QLabel,
+        QMessageBox, QPushButton, QVBoxLayout)
+from PySide2.QtNetwork import (QHostAddress, QNetworkInterface, QTcpServer,
+        QTcpSocket)
+
+
+class FortuneThread(QThread):
+    error = Signal(QTcpSocket.SocketError)
+
+    def __init__(self, socketDescriptor, fortune, parent):
+        super(FortuneThread, self).__init__(parent)
+
+        self.socketDescriptor = socketDescriptor
+        self.text = fortune
+
+    def run(self):
+        tcpSocket = QTcpSocket()
+        if not tcpSocket.setSocketDescriptor(self.socketDescriptor):
+            self.error.emit(tcpSocket.error())
+            return
+
+        block = QByteArray()
+        outstr = QDataStream(block, QIODevice.WriteOnly)
+        outstr.setVersion(QDataStream.Qt_4_0)
+        outstr.writeUInt16(0)
+        outstr.writeQString(self.text)
+        outstr.device().seek(0)
+        outstr.writeUInt16(block.size() - 2)
+
+        tcpSocket.write(block)
+        tcpSocket.disconnectFromHost()
+        tcpSocket.waitForDisconnected()
+
+
+class FortuneServer(QTcpServer):
+    fortunes = (
+        "You've been leading a dog's life. Stay off the furniture.",
+        "You've got to think about tomorrow.",
+        "You will be surprised by a loud noise.",
+        "You will feel hungry again in another hour.",
+        "You might have mail.",
+        "You cannot kill time without injuring eternity.",
+        "Computers are not intelligent. They only think they are.")
+
+    def incomingConnection(self, socketDescriptor):
+        fortune = self.fortunes[random.randint(0, len(self.fortunes) - 1)]
+
+        thread = FortuneThread(socketDescriptor, fortune, self)
+        thread.finished.connect(thread.deleteLater)
+        thread.start()
+
+
+class Dialog(QDialog):
+    def __init__(self, parent=None):
+        super(Dialog, self).__init__(parent)
+
+        self.server = FortuneServer()
+
+        statusLabel = QLabel()
+        statusLabel.setTextInteractionFlags(Qt.TextBrowserInteraction)
+        statusLabel.setWordWrap(True)
+        quitButton = QPushButton("Quit")
+        quitButton.setAutoDefault(False)
+
+        if not self.server.listen():
+            QMessageBox.critical(self, "Threaded Fortune Server",
+                    "Unable to start the server: %s." % self.server.errorString())
+            self.close()
+            return
+
+        for ipAddress in QNetworkInterface.allAddresses():
+            if ipAddress != QHostAddress.LocalHost and ipAddress.toIPv4Address() != 0:
+                break
+        else:
+            ipAddress = QHostAddress(QHostAddress.LocalHost)
+
+        ipAddress = ipAddress.toString()
+
+        statusLabel.setText("The server is running on\n\nIP: %s\nport: %d\n\n"
+                "Run the Fortune Client example now." % (ipAddress, self.server.serverPort()))
+
+        quitButton.clicked.connect(self.close)
+
+        buttonLayout = QHBoxLayout()
+        buttonLayout.addStretch(1)
+        buttonLayout.addWidget(quitButton)
+        buttonLayout.addStretch(1)
+
+        mainLayout = QVBoxLayout()
+        mainLayout.addWidget(statusLabel)
+        mainLayout.addLayout(buttonLayout)
+        self.setLayout(mainLayout)
+
+        self.setWindowTitle("Threaded Fortune Server")
+
+
+if __name__ == '__main__':
+
+    import sys
+
+    app = QApplication(sys.argv)
+    dialog = Dialog()
+    dialog.show()
+    sys.exit(dialog.exec_())