diff options
Diffstat (limited to 'examples/network/multicastreceiver/receiver.cpp')
| -rw-r--r-- | examples/network/multicastreceiver/receiver.cpp | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/examples/network/multicastreceiver/receiver.cpp b/examples/network/multicastreceiver/receiver.cpp index 8985ad1d82..d793242ad0 100644 --- a/examples/network/multicastreceiver/receiver.cpp +++ b/examples/network/multicastreceiver/receiver.cpp @@ -55,9 +55,10 @@ Receiver::Receiver(QWidget *parent) : QDialog(parent), - groupAddress(QStringLiteral("239.255.43.21")) + groupAddress4(QStringLiteral("239.255.43.21")), + groupAddress6(QStringLiteral("ff12::2115")) { - statusLabel = new QLabel(tr("Listening for multicasted messages")); + statusLabel = new QLabel(tr("Listening for multicast messages on both IPv4 and IPv6")); auto quitButton = new QPushButton(tr("&Quit")); auto buttonLayout = new QHBoxLayout; @@ -72,21 +73,37 @@ Receiver::Receiver(QWidget *parent) setWindowTitle(tr("Multicast Receiver")); - udpSocket.bind(QHostAddress::AnyIPv4, 45454, QUdpSocket::ShareAddress); - udpSocket.joinMulticastGroup(groupAddress); + udpSocket4.bind(QHostAddress::AnyIPv4, 45454, QUdpSocket::ShareAddress); + udpSocket4.joinMulticastGroup(groupAddress4); - connect(&udpSocket, SIGNAL(readyRead()), + if (!udpSocket6.bind(QHostAddress::AnyIPv6, 45454, QUdpSocket::ShareAddress) || + !udpSocket6.joinMulticastGroup(groupAddress6)) + statusLabel->setText(tr("Listening for multicast messages on IPv4 only")); + + connect(&udpSocket4, SIGNAL(readyRead()), this, SLOT(processPendingDatagrams())); + connect(&udpSocket6, &QUdpSocket::readyRead, this, &Receiver::processPendingDatagrams); connect(quitButton, SIGNAL(clicked()), this, SLOT(close())); } void Receiver::processPendingDatagrams() { QByteArray datagram; - while (udpSocket.hasPendingDatagrams()) { - datagram.resize(int(udpSocket.pendingDatagramSize())); - udpSocket.readDatagram(datagram.data(), datagram.size()); - statusLabel->setText(tr("Received datagram: \"%1\"") + + // using QUdpSocket::readDatagram (API since Qt 4) + while (udpSocket4.hasPendingDatagrams()) { + datagram.resize(int(udpSocket4.pendingDatagramSize())); + udpSocket4.readDatagram(datagram.data(), datagram.size()); + statusLabel->setText(tr("Received IPv4 datagram: \"%1\"") .arg(datagram.constData())); } + + // using QUdpSocket::receiveDatagram (API since Qt 5.8) + while (udpSocket6.hasPendingDatagrams()) { + QNetworkDatagram dgram = udpSocket6.receiveDatagram(); + statusLabel->setText(statusLabel->text() + + tr("\nReceived IPv6 datagram from [%2]:%3: \"%1\"") + .arg(dgram.data().constData(), dgram.senderAddress().toString()) + .arg(dgram.senderPort())); + } } |