<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>chatserver.cpp Example File | Qt Bluetooth 5.12.2</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtbluetooth-index.html">Qt Bluetooth</a></td><td ><a href="qtbluetooth-btchat-example.html">Bluetooth Chat Example</a></td><td >chatserver.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtbluetooth-index.html">Qt 5.12.2 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">chatserver.cpp Example File</h1> <span class="subtitle">btchat/chatserver.cpp</span> <!-- $$$btchat/chatserver.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2017 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtBluetooth module 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." ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> <span class="preprocessor">#include "chatserver.h"</span> <span class="preprocessor">#include <QtBluetooth/qbluetoothserver.h></span> <span class="preprocessor">#include <QtBluetooth/qbluetoothsocket.h></span> <span class="keyword">static</span> <span class="keyword">const</span> QLatin1String serviceUuid(<span class="string">"e8e10f95-1a70-4b27-9ccf-02010264e9c8"</span>); ChatServer<span class="operator">::</span>ChatServer(<span class="type">QObject</span> <span class="operator">*</span>parent) : <span class="type">QObject</span>(parent) { } ChatServer<span class="operator">::</span><span class="operator">~</span>ChatServer() { stopServer(); } <span class="type">void</span> ChatServer<span class="operator">::</span>startServer(<span class="keyword">const</span> <span class="type"><a href="qbluetoothaddress.html">QBluetoothAddress</a></span><span class="operator">&</span> localAdapter) { <span class="keyword">if</span> (rfcommServer) <span class="keyword">return</span>; rfcommServer <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qbluetoothserver.html">QBluetoothServer</a></span>(<span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>RfcommProtocol<span class="operator">,</span> <span class="keyword">this</span>); connect(rfcommServer<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qbluetoothserver.html">QBluetoothServer</a></span><span class="operator">::</span>newConnection<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="type">QOverload</span><span class="operator"><</span><span class="operator">></span><span class="operator">::</span>of(<span class="operator">&</span>ChatServer<span class="operator">::</span>clientConnected)); bool result <span class="operator">=</span> rfcommServer<span class="operator">-</span><span class="operator">></span>listen(localAdapter); <span class="keyword">if</span> (<span class="operator">!</span>result) { qWarning() <span class="operator"><</span><span class="operator"><</span> <span class="string">"Cannot bind chat server to"</span> <span class="operator"><</span><span class="operator"><</span> localAdapter<span class="operator">.</span>toString(); <span class="keyword">return</span>; } <span class="comment">//serviceInfo.setAttribute(QBluetoothServiceInfo::ServiceRecordHandle, (uint)0x00010010);</span> <span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>Sequence profileSequence; <span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>Sequence classId; classId <span class="operator"><</span><span class="operator"><</span> <span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span>(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span><span class="operator">::</span>SerialPort)); classId <span class="operator"><</span><span class="operator"><</span> <span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="type">quint16</span>(<span class="number">0x100</span>)); profileSequence<span class="operator">.</span>append(<span class="type">QVariant</span><span class="operator">::</span>fromValue(classId)); serviceInfo<span class="operator">.</span>setAttribute(<span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>BluetoothProfileDescriptorList<span class="operator">,</span> profileSequence); classId<span class="operator">.</span>clear(); classId <span class="operator"><</span><span class="operator"><</span> <span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span>(serviceUuid)); classId <span class="operator"><</span><span class="operator"><</span> <span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span>(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span><span class="operator">::</span>SerialPort)); serviceInfo<span class="operator">.</span>setAttribute(<span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>ServiceClassIds<span class="operator">,</span> classId); serviceInfo<span class="operator">.</span>setAttribute(<span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>ServiceName<span class="operator">,</span> tr(<span class="string">"Bt Chat Server"</span>)); serviceInfo<span class="operator">.</span>setAttribute(<span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>ServiceDescription<span class="operator">,</span> tr(<span class="string">"Example bluetooth chat server"</span>)); serviceInfo<span class="operator">.</span>setAttribute(<span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>ServiceProvider<span class="operator">,</span> tr(<span class="string">"qt-project.org"</span>)); serviceInfo<span class="operator">.</span>setServiceUuid(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span>(serviceUuid)); <span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>Sequence publicBrowse; publicBrowse <span class="operator"><</span><span class="operator"><</span> <span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span>(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span><span class="operator">::</span>PublicBrowseGroup)); serviceInfo<span class="operator">.</span>setAttribute(<span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>BrowseGroupList<span class="operator">,</span> publicBrowse); <span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>Sequence protocolDescriptorList; <span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>Sequence protocol; protocol <span class="operator"><</span><span class="operator"><</span> <span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span>(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span><span class="operator">::</span>L2cap)); protocolDescriptorList<span class="operator">.</span>append(<span class="type">QVariant</span><span class="operator">::</span>fromValue(protocol)); protocol<span class="operator">.</span>clear(); protocol <span class="operator"><</span><span class="operator"><</span> <span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span>(<span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span><span class="operator">::</span>Rfcomm)) <span class="operator"><</span><span class="operator"><</span> <span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="type">quint8</span>(rfcommServer<span class="operator">-</span><span class="operator">></span>serverPort())); protocolDescriptorList<span class="operator">.</span>append(<span class="type">QVariant</span><span class="operator">::</span>fromValue(protocol)); serviceInfo<span class="operator">.</span>setAttribute(<span class="type"><a href="qbluetoothserviceinfo.html">QBluetoothServiceInfo</a></span><span class="operator">::</span>ProtocolDescriptorList<span class="operator">,</span> protocolDescriptorList); serviceInfo<span class="operator">.</span>registerService(localAdapter); } <span class="type">void</span> ChatServer<span class="operator">::</span>stopServer() { <span class="comment">// Unregister service</span> serviceInfo<span class="operator">.</span>unregisterService(); <span class="comment">// Close sockets</span> qDeleteAll(clientSockets); <span class="comment">// Close server</span> <span class="keyword">delete</span> rfcommServer; rfcommServer <span class="operator">=</span> nullptr; } <span class="type">void</span> ChatServer<span class="operator">::</span>sendMessage(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>message) { <span class="type">QByteArray</span> text <span class="operator">=</span> message<span class="operator">.</span>toUtf8() <span class="operator">+</span> <span class="char">'\n'</span>; <span class="keyword">for</span> (<span class="type"><a href="qbluetoothsocket.html">QBluetoothSocket</a></span> <span class="operator">*</span>socket : qAsConst(clientSockets)) socket<span class="operator">-</span><span class="operator">></span>write(text); } <span class="type">void</span> ChatServer<span class="operator">::</span>clientConnected() { <span class="type"><a href="qbluetoothsocket.html">QBluetoothSocket</a></span> <span class="operator">*</span>socket <span class="operator">=</span> rfcommServer<span class="operator">-</span><span class="operator">></span>nextPendingConnection(); <span class="keyword">if</span> (<span class="operator">!</span>socket) <span class="keyword">return</span>; connect(socket<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qbluetoothsocket.html">QBluetoothSocket</a></span><span class="operator">::</span>readyRead<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>ChatServer<span class="operator">::</span>readSocket); connect(socket<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qbluetoothsocket.html">QBluetoothSocket</a></span><span class="operator">::</span>disconnected<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="type">QOverload</span><span class="operator"><</span><span class="operator">></span><span class="operator">::</span>of(<span class="operator">&</span>ChatServer<span class="operator">::</span>clientDisconnected)); clientSockets<span class="operator">.</span>append(socket); <span class="keyword">emit</span> clientConnected(socket<span class="operator">-</span><span class="operator">></span>peerName()); } <span class="type">void</span> ChatServer<span class="operator">::</span>clientDisconnected() { <span class="type"><a href="qbluetoothsocket.html">QBluetoothSocket</a></span> <span class="operator">*</span>socket <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qbluetoothsocket.html">QBluetoothSocket</a></span> <span class="operator">*</span><span class="operator">></span>(sender()); <span class="keyword">if</span> (<span class="operator">!</span>socket) <span class="keyword">return</span>; <span class="keyword">emit</span> clientDisconnected(socket<span class="operator">-</span><span class="operator">></span>peerName()); clientSockets<span class="operator">.</span>removeOne(socket); socket<span class="operator">-</span><span class="operator">></span>deleteLater(); } <span class="type">void</span> ChatServer<span class="operator">::</span>readSocket() { <span class="type"><a href="qbluetoothsocket.html">QBluetoothSocket</a></span> <span class="operator">*</span>socket <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qbluetoothsocket.html">QBluetoothSocket</a></span> <span class="operator">*</span><span class="operator">></span>(sender()); <span class="keyword">if</span> (<span class="operator">!</span>socket) <span class="keyword">return</span>; <span class="keyword">while</span> (socket<span class="operator">-</span><span class="operator">></span>canReadLine()) { <span class="type">QByteArray</span> line <span class="operator">=</span> socket<span class="operator">-</span><span class="operator">></span>readLine()<span class="operator">.</span>trimmed(); <span class="keyword">emit</span> messageReceived(socket<span class="operator">-</span><span class="operator">></span>peerName()<span class="operator">,</span> <span class="type">QString</span><span class="operator">::</span>fromUtf8(line<span class="operator">.</span>constData()<span class="operator">,</span> line<span class="operator">.</span>length())); } } </pre> </div> <!-- @@@btchat/chatserver.cpp --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>