// Qt's asynchronous DNS resolution mechanism will call this method
// when the DNS resolution for this peer's hostname is complete.
// "Completion" might mean either success or failure:
// on failure, we'll get a QHostInfo object with no IP addresses.
public void lookupDone(QHostInfo hi)
{
hostinfo = hi;
addrs = hi.addresses();
Console.WriteLine("Peer " + name
+ ": got " + addrs.size() + " addresses");
//Console.WriteLine(((QHostAddress)addrs.get(0)).ToString());
IPaddr = ((QHostAddress)addrs.get(0)).ToString();
}
public Net(ushort initPort, IList <string> initPeers)
{
// For each peer name in the command-line arguments,
// create a Peer object to represent and track that peer.
foreach (string peerName in initPeers)
{
peers.Add(new Peer(this, peerName));
//peerList.add(peerName);
}
//Console.WriteLine(peers.Count);
for (int i = 0; i < peers.Count; i++)
{
peerList.add(peers[i].betterName);
}
// Bind our UDP socket to the specified (or default) port
// allowing us to send and receive network datagrams.
if (initPort == 0)
{
initPort = NetConf.defaultPort;
}
// Like println in Java
Console.WriteLine("Binding to port " + initPort);
sock.bind(new QHostAddress(QHostAddress.SpecialAddress.Any),
initPort);
sock.readyRead.connect(this, "receive()");
// Save some identifying information for printfs and such.
myPort = initPort;
myName = QHostInfo.localHostName() + ":" + myPort;
// Create a timer to trigger repeating "pings"
// we send out to to all our peers.
QTimer timer = new QTimer(this);
timer.timeout.connect(this, "pingAllPeers()");
timer.start(1000); // ping once every second
}
public Peer(Net peerNet, String peerName)
{
net = peerNet;
name = peerName;
// Does the peerName include a colon and a port number?
// If so, parse it and strip it off.
int colonpos = peerName.IndexOf(':');
if (colonpos >= 0) // Explicit port number.
{
hostName = peerName.Substring(0, colonpos);
port = ushort.Parse(peerName.Substring(colonpos + 1));
}
else // Use default port.
{
hostName = peerName;
port = NetConf.defaultPort;
}
// If the peer name is empty (aside from port number),
// interpret it as a synonym for "localhost".
if (hostName == "")
{
hostName = "localhost";
}
// Start DNS-resolving this peer's hostname,
// calling our lookupDone() method when finished.
Console.WriteLine("Resolving hostname " + hostName);
QHostInfo.lookupHost(hostName, this, "lookupDone");
betterName = hostName + ":" + port;
}
