private IAsyncResult RemoteAsyncCallStart(Node otherNode, int term, string url)
{
AsyncStartDelegate RemoteDel = new AsyncStartDelegate(otherNode.Vote);
IAsyncResult RemAr = RemoteDel.BeginInvoke(term, url, null, null);
return(RemAr);
}
private void RunElection()
{
while (active)
{
node.IncrementTerm();
node.GetVoteResult(node.term, node.url);
bool allAck = false;
List <IAsyncResult> results = new List <IAsyncResult>();
List <WaitHandle> waits = new List <WaitHandle>();
foreach (Node otherNode in this.node.otherNodes)
{
IAsyncResult ar = RemoteAsyncCallStart(otherNode, this.node.term, this.node.url);
results.Add(ar);
waits.Add(ar.AsyncWaitHandle);
}
allAck = WaitHandle.WaitAll(waits.ToArray(), 2000);
List <bool> count = new List <bool>();
foreach (IAsyncResult result in results)
{
AsyncStartDelegate del = (AsyncStartDelegate)((AsyncResult)result).AsyncDelegate;
count.Add(del.EndInvoke(result));
}
int countTrues = count.Where(item => item == true).Count() + 1;
Console.WriteLine("Got votes! " + countTrues);
if (countTrues > (count.Count + 1) / 2)
{
Console.WriteLine("I am the leader!");
this.node.SetState(new Leader(node));
}
else
{
Console.WriteLine("election failed :c");
Thread.Sleep((new Random()).Next(500, 1000));
}
}
}
