void DuktoProtocol::sayHello(QHostAddress dest, qint16 port)
{
// Preparazione pacchetto
QByteArray *packet = new QByteArray();
if ((port == DEFAULT_UDP_PORT) && (mLocalUdpPort == DEFAULT_UDP_PORT))
{
if (dest == QHostAddress::Broadcast)
packet->append(0x01); // 0x01 -> HELLO MESSAGE (broadcast)
else
packet->append(0x02); // 0x02 -> HELLO MESSAGE (unicast)
}
else
{
if (dest == QHostAddress::Broadcast)
packet->append(0x04); // 0x04 -> HELLO MESSAGE (broadcast) with PORT
else
packet->append(0x05); // 0x05 -> HELLO MESSAGE (unicast) with PORT
packet->append((char*)&mLocalUdpPort, sizeof(qint16));
}
packet->append(getSystemSignature());
// Invio pacchetto
if (dest == QHostAddress::Broadcast) {
sendToAllBroadcast(packet, port);
if (port != DEFAULT_UDP_PORT) sendToAllBroadcast(packet, DEFAULT_UDP_PORT);
}
else
mSocket->writeDatagram(packet->data(), packet->length(), dest, port);
delete packet;
}
void DuktoProtocol::sayHello(QHostAddress dest, qint16 port)
{
// Preparazione pacchetto
QByteArray packet;
if ((port == DEFAULT_UDP_PORT) && (mLocalUdpPort == DEFAULT_UDP_PORT))
{
if (dest == QHostAddress::Broadcast)
packet.append(MSG_HELLO_BROADCAST);
else
packet.append(MSG_HELLO_UNICAST);
}
else
{
if (dest == QHostAddress::Broadcast)
packet.append(MSG_HELLO_PORT_BROADCAST);
else
packet.append(MSG_HELLO_PORT_BROADCAST);
packet.append((char*)&mLocalUdpPort, sizeof(qint16));
}
packet.append(getSystemSignature());
// Invio pacchetto
if (dest == QHostAddress::Broadcast) {
QList<qint16> ports;
ports.append(DEFAULT_UDP_PORT);
if (port != DEFAULT_UDP_PORT)
ports.append(port);
sendToAllBroadcast(packet, ports);
}
else
mSocket->writeDatagram(packet.data(), packet.length(), dest, port);
}
void DuktoProtocol::sayGoodbye()
{
QByteArray *packet = new QByteArray();
packet->append(0x03); // 0x03 -> GOODBYE MESSAGE
packet->append("Bye Bye");
sendToAllBroadcast(packet);
delete packet;
}
void DuktoProtocol::sayGoodbye()
{
// Create packet
QByteArray packet;
packet.append(MSG_GOODBYE);
// Look for all the discovered ports
QList<qint16> ports;
ports.append(mLocalUdpPort);
if (mLocalUdpPort != DEFAULT_UDP_PORT) ports.append(DEFAULT_UDP_PORT);
QList<Peer> values = mPeers.values();
for(QList<Peer>::const_iterator p = values.constBegin(); p != values.constEnd(); ++p)
if(!ports.contains(p->port))
ports.append(p->port);
// Send broadcast message to all discovered ports
sendToAllBroadcast(packet, ports);
}
void DuktoProtocol::sayHello(QHostAddress dest)
{
// Preparazione pacchetto
QByteArray *packet = new QByteArray();
if (dest == QHostAddress::Broadcast)
packet->append(0x01); // 0x01 -> HELLO MESSAGE (broadcast)
else
packet->append(0x02); // 0x02 -> HELLO MESSAGE (unicast)
packet->append(OsLib::retrieveSystemName());
// Invio pacchetto
if (dest == QHostAddress::Broadcast)
sendToAllBroadcast(packet);
else
mSocket->writeDatagram(packet->data(), packet->length(), dest, UDP_PORT);
delete packet;
}
void DuktoProtocol::sayGoodbye()
{
// Create packet
QByteArray *packet = new QByteArray();
packet->append(0x03); // 0x03 -> GOODBYE MESSAGE
packet->append("Bye Bye");
// Look for all the discovered ports
QList<qint16> ports;
ports.append(mLocalUdpPort);
if (mLocalUdpPort != DEFAULT_UDP_PORT) ports.append(DEFAULT_UDP_PORT);
foreach (const Peer &p, mPeers.values())
if (!ports.contains(p.port))
ports.append(p.port);
// Send broadcast message to all discovered ports
foreach (const qint16 &port, ports)
sendToAllBroadcast(packet, port);
// Free memory
delete packet;
}
