private void AddDrone(DroneEntry entry)
{
lock (foundDrones)
{
if (UpdateDrone(entry))
{
return;
}
// alte Drone mit gleicher IP-Adresse entfernen
RemoveDrone(entry.Address);
foundDrones.Add(entry);
}
InvokeEvent();
}
private bool UpdateDrone(DroneEntry entry)
{
for (int i = 0; i < foundDrones.Count; i++)
{
DroneEntry e = foundDrones[i];
if (e.Address.Equals(entry.Address))
{
foundDrones[i] = DroneEntry.UpdateEntry(entry);
if (!e.Equals(entry))
{
InvokeEvent();
}
return(true);
}
}
return(false);
}
private void HandlePacket(byte[] packet, IPEndPoint sender)
{
try
{
using (MemoryStream stream = new MemoryStream(packet))
{
PacketBuffer buffer = new PacketBuffer(stream);
if (packet.Length < 3 || buffer.ReadByte() != 'F' || buffer.ReadByte() != 'L' || buffer.ReadByte() != 'Y')
{
Log.Debug("DroneList: Invalid magic value!");
return;
}
if (buffer.ReadByte() != (byte)HelloPacketType.Answer)
{
return;
}
DroneEntry entry = new DroneEntry();
entry.Address = sender.Address;
entry.LastFound = DateTime.Now;
entry.Name = buffer.ReadString();
entry.Model = buffer.ReadString();
entry.SerialCode = buffer.ReadString();
entry.FirmwareVersion = buffer.ReadByte();
AddDrone(entry);
}
}
catch (Exception e)
{
Log.Error("Error while searching for drones:");
Log.Error(e);
}
}
