/// <summary>
/// If it is time to send a keepalive packet, sends a keepalive packet.
/// </summary>
private void SendKeepalive(KeepAliveSender keepAlive)
{
ProtectedSend(() =>
{
if (keepAlive.IsTimeToKeepalive()) // Test timing after aquiring writeLock, to prevent unnecessary keepalive packets if another packet was sending while we were obtaining the lock.
{
keepAlive.NotifyPacketSending();
stream.WriteByte((byte)Command.KeepAlive);
}
});
}
/// <summary>
/// Listens for incoming traffic. This should be the only thread which reads from the [stream].
/// </summary>
internal void ListenLoop()
{
#region Command Loop
try
{
while (!disconnected && p.tcpClient.Connected)
{
Command command = (Command)ByteUtil.ReadNBytes(stream, 1)[0];
switch (command)
{
case Command.HostStatus:
{
int hostStatusLength = ByteUtil.ReadInt32(stream);
HostStatus hostStatus = new HostStatus(stream, hostStatusLength);
break;
}
case Command.KeepAlive:
Logger.Info("Received Command.KeepAlive from (" + ComputerID + ") " + ServiceWrapper.db.GetComputer(ComputerID).Name);
break;
default:
ProtectedSend(() =>
{
keepAlive.NotifyPacketSending();
stream.WriteByte((byte)Command.Error_CommandCodeUnknown);
});
break;
}
}
}
finally
{
Disconnect();
}
#endregion
}
