private void handleHelloMessage(HelloMessage msg, IPAddress sender)
{
// see if the peers list contains a SyncPeer with the same hostname
SyncPeer found = _peers.Find((peer) => { return(peer.Hostname == msg.hostname); });
if (found != null)
{ // we know about this peer, update its last seen time
found.LastResponded = DateTime.Now;
}
else
{ // we don't know about this peer, add it
SyncPeer newPeer = new SyncPeer();
newPeer.Port = msg.listenPort;
newPeer.Hostname = msg.hostname;
newPeer.Address = sender;
newPeer.LastResponded = DateTime.Now;
_peers.Add(newPeer);
Debug.WriteLine("Added new peer " + msg.hostname);
SyncPeerUpdatedEventHandler handler = OnSyncPeerUpdated;
if (handler != null)
{
handler(this, new SyncPeerUpdatedEventArgs(found, SyncPeerUpdatedAction.Added));
}
// send our hello message quickly (so the peer doesn't have to wait ~5 seconds to get our next hello)
_udpAgent.HurrySendHello();
// request the peer's applist
Debug.WriteLine("Sending RequestAppList to " + sender.ToString());
RequestAppListMessage sendMsg = new RequestAppListMessage();
_tcpAgent.SendMessage(sendMsg, sender);
}
}
private void handleAppListMessage(AppListMessage msg, IPAddress sender)
{
SyncPeer found = _peers.Find((peer) => { return(peer.Address.Equals(sender)); });
if (found == null)
{
Debug.WriteLine("Received AppList from unknown peer " + sender.ToString());
}
found.Apps = msg.availableApps;
updateAvailableApps();
Debug.WriteLine(String.Format("{0} has {1} available apps", found.Hostname, found.Apps.Count));
SyncPeerUpdatedEventHandler handler = OnSyncPeerUpdated;
if (handler != null)
{
handler(this, new SyncPeerUpdatedEventArgs(found, SyncPeerUpdatedAction.Updated));
}
}
private void removePeer(SyncPeer peer)
{
// remove the peers
Debug.WriteLine("Removing " + peer.Hostname + " from peers list");
if (_peers.Contains(peer))
{
_peers.Remove(peer);
}
// update list of available apps (i.e. remove any that are no longer available)
updateAvailableApps();
// notify listeners that the peers have been removed (need to do this after available apps has been updated)
SyncPeerUpdatedEventHandler handler = OnSyncPeerUpdated;
if (handler != null)
{
handler(this, new SyncPeerUpdatedEventArgs(peer, SyncPeerUpdatedAction.Removed));
}
}
