From 5548b940fb52715d2a25a6316c2b44c83fdbbcbc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Morten=20Johan=20S=C3=B8rvig?= Date: Mon, 11 Oct 2021 14:32:37 +0200 Subject: [PATCH] wasm: add echo_client_mainthread example This example connects an echo server running behind WebSockify, on localhost. For example, start websockify with websockify 1515 localhost:1516 to accept a webscoket connection on 1515 and forward to echo_server at 1516. Pick-to: 6.4 Change-Id: Id71364e4ab8c46d3482b515fcd1b991b61d7404b Reviewed-by: Lorn Potter --- .../echo_client_mainthread/CMakeLists.txt | 8 ++ .../network/echo_client_mainthread/main.cpp | 99 +++++++++++++++++++ 2 files changed, 107 insertions(+) create mode 100644 tests/manual/wasm/network/echo_client_mainthread/CMakeLists.txt create mode 100644 tests/manual/wasm/network/echo_client_mainthread/main.cpp diff --git a/tests/manual/wasm/network/echo_client_mainthread/CMakeLists.txt b/tests/manual/wasm/network/echo_client_mainthread/CMakeLists.txt new file mode 100644 index 00000000000..d77909fc89f --- /dev/null +++ b/tests/manual/wasm/network/echo_client_mainthread/CMakeLists.txt @@ -0,0 +1,8 @@ +qt_internal_add_manual_test(echo_client_mainthread + GUI + SOURCES + main.cpp + PUBLIC_LIBRARIES + Qt::Core + Qt::Network +) diff --git a/tests/manual/wasm/network/echo_client_mainthread/main.cpp b/tests/manual/wasm/network/echo_client_mainthread/main.cpp new file mode 100644 index 00000000000..21facc7be31 --- /dev/null +++ b/tests/manual/wasm/network/echo_client_mainthread/main.cpp @@ -0,0 +1,99 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include +#include + +int main(int argc, char **argv) { + + QCoreApplication app(argc, argv); + + // This example connects to localhost, but note that the host can + // be any host reachable from the client using webscokets, at any port. + QString hostName = "localhost"; + int port = 1515; + qDebug() << "This example connects to a server at" << hostName << "port" << port << "," + << "where it expects to find a WebSockify server, which forwards to the fortune server."; + + auto echo = [hostName, port]() { + QTcpSocket *socket = new QTcpSocket(); + + QObject::connect(socket, &QAbstractSocket::connected, [socket]() { + qDebug() << "Connected"; + socket->write("Hello, echo server!"); + socket->flush(); + }); + + QObject::connect(socket, &QIODevice::readyRead, [socket]() { + QByteArray data = socket->readAll(); + qDebug() << "Ready Read, got echo:" << data; + socket->disconnectFromHost(); + socket->deleteLater(); + }); + + QObject::connect(socket, &QAbstractSocket::errorOccurred, [socket]() { + qDebug() << "Error Occurred" << socket->error(); + }); + + QObject::connect(socket, &QAbstractSocket::disconnected, [socket]() { + qDebug() << "Disconnected"; + socket->deleteLater(); + }); + + qDebug() << "Connect to host" << hostName << port; + socket->connectToHost(hostName, port); + }; + + QTimer::singleShot(500, [echo](){ + echo(); + }); + + return app.exec(); +}