/// <summary>
/// AddTupleToReceiveAck inserts tuple in ToReceiveAck.
/// </summary>
/// <param name="t">Tuple that will receive ack</param>
public void AddTupleToReceiveAck(Tuple t, bool resend)//Add tuple to receive ack
{
if (!RepInfo.Semantics.Equals("at-most-once"))
{
if (!resend)
{
TimerMethod temptimer = new TimerMethod(ResendTuple);//Starts timer to resend tuple t with timeout defined as a constant at the top of this file
Timer stateTimer = new Timer(temptimer.ResendTupleMethod, t, TIMEOUT, TIMEOUT);
TimerTuple temp = new TimerTuple(t, stateTimer);
TimerAck.Add(temp);
ToReceiveAck.Add(t);
}
}
}
public void receivedAck(Tuple t, bool notRep)//Remove tuple that needed to receive ack from the list
{
if (!RepInfo.Semantics.Equals("at-most-once"))
{
foreach (Tuple t2 in ToReceiveAck.ToArray())
{
if (t2 != null && t.Id.Equals(t2.Id))
{
ToReceiveAck.Remove(t);
removeRepTuple(t);//removes if exists the replica of a a tuple processed
foreach (TimerTuple t3 in TimerAck.ToArray())
{
if (t3 != null && t.Id.Equals(t3.AckT.Id))
{
t3.Time.Dispose();
TimerAck.Remove(t3);
Console.WriteLine("receivedAck: " + t.toString());
break;
}
}
if (notRep)
{
foreach (string url in RepInfo.SiblingsUrls.ToArray())//removes replicated receive acks from siblings
{
if (url != null && !url.Equals(RepInfo.MyUrl))
{
try
{
OperatorServices obj = (OperatorServices)Activator.GetObject(typeof(OperatorServices), url);
obj.receivedAck(t, false);
Console.WriteLine("Removed ack of tuple: " + t.toString() + " from sibling: " + url);
}
catch (System.Net.Sockets.SocketException e)
{//if the replica that should received ack is dead no problem
}
}
}
}
return;//We only want to remove 1
}
}
Console.WriteLine("receivedAck: Error while removing tuple after being acked: " + t.toString());
}
}
