diff options
Diffstat (limited to 'examples/network/threadedfortuneserver')
-rw-r--r-- | examples/network/threadedfortuneserver/threadedfortuneserver.py | 116 | ||||
-rw-r--r-- | examples/network/threadedfortuneserver/threadedfortuneserver.pyproject | 3 |
2 files changed, 119 insertions, 0 deletions
diff --git a/examples/network/threadedfortuneserver/threadedfortuneserver.py b/examples/network/threadedfortuneserver/threadedfortuneserver.py new file mode 100644 index 000000000..c75e2bc57 --- /dev/null +++ b/examples/network/threadedfortuneserver/threadedfortuneserver.py @@ -0,0 +1,116 @@ +# Copyright (C) 2013 Riverbank Computing Limited. +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +"""PySide6 port of the network/threadedfortuneserver example from Qt v5.x, originating from PyQt""" + +import random + +from PySide6.QtCore import (Signal, QByteArray, QDataStream, QIODevice, + QThread, Qt) +from PySide6.QtWidgets import (QApplication, QDialog, QHBoxLayout, QLabel, + QMessageBox, QPushButton, QVBoxLayout) +from PySide6.QtNetwork import (QHostAddress, QNetworkInterface, QTcpServer, + QTcpSocket) + + +class FortuneThread(QThread): + error = Signal(QTcpSocket.SocketError) + + def __init__(self, socketDescriptor, fortune, parent): + super().__init__(parent) + + self._socket_descriptor = socketDescriptor + self.text = fortune + + def run(self): + tcp_socket = QTcpSocket() + if not tcp_socket.setSocketDescriptor(self._socket_descriptor): + self.error.emit(tcp_socket.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) + + tcp_socket.write(block) + tcp_socket.disconnectFromHost() + tcp_socket.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().__init__(parent) + + self.server = FortuneServer() + + status_label = QLabel() + status_label.setTextInteractionFlags(Qt.TextBrowserInteraction) + status_label.setWordWrap(True) + quit_button = QPushButton("Quit") + quit_button.setAutoDefault(False) + + if not self.server.listen(): + reason = self.server.errorString() + QMessageBox.critical(self, "Threaded Fortune Server", + f"Unable to start the server: {reason}.") + self.close() + return + + for ip_address in QNetworkInterface.allAddresses(): + if ip_address != QHostAddress.LocalHost and ip_address.toIPv4Address() != 0: + break + else: + ip_address = QHostAddress(QHostAddress.LocalHost) + + ip_address = ip_address.toString() + port = self.server.serverPort() + + status_label.setText(f"The server is running on\n\nIP: {ip_address}\nport: {port}\n\n" + "Run the Fortune Client example now.") + + quit_button.clicked.connect(self.close) + + button_layout = QHBoxLayout() + button_layout.addStretch(1) + button_layout.addWidget(quit_button) + button_layout.addStretch(1) + + main_layout = QVBoxLayout() + main_layout.addWidget(status_label) + main_layout.addLayout(button_layout) + self.setLayout(main_layout) + + self.setWindowTitle("Threaded Fortune Server") + + +if __name__ == '__main__': + + import sys + + app = QApplication(sys.argv) + dialog = Dialog() + dialog.show() + sys.exit(dialog.exec()) diff --git a/examples/network/threadedfortuneserver/threadedfortuneserver.pyproject b/examples/network/threadedfortuneserver/threadedfortuneserver.pyproject new file mode 100644 index 000000000..c0d401d48 --- /dev/null +++ b/examples/network/threadedfortuneserver/threadedfortuneserver.pyproject @@ -0,0 +1,3 @@ +{ + "files": ["threadedfortuneserver.py"] +} |