public override void HandleMessage(int fromId, Msg msg)
{
if (CurrentRound == null && msg.Type == MsgType.NextRound)
{
// want to start the next round
if (IntermediateRoundsRemaining > 0)
{
CurrentRound = new ShareRenewalRound(Me, Quorums[FROM], Quorums[TO], Shares, Prime, Shares.Length, 3 * Shares.Length, ProtocolId);
}
else
{
CurrentRound = new ShareRenewalRound(Me, Quorums[FROM], Quorums[TO], Shares, Prime, Shares.Length, 1, ProtocolId);
FinalRound = true;
}
CurrentRound.Start();
}
else
{
CurrentRound.HandleMessage(fromId, msg);
if (CurrentRound.IsCompleted)
{
if (FinalRound)
{
if (Quorums[TO].HasMember(Me.Id))
{
Debug.Assert(CurrentRound.Result.Length == 1);
Result = new Share <BigZp>(CurrentRound.Result[0], false);
}
IsCompleted = true;
}
else
{
Shares = CurrentRound.Result;
IntermediateRoundsRemaining--;
CurrentRound = null;
Send(Me.Id, new Msg(MsgType.NextRound));
// use this to ensure all of the parties stay on the same round
}
}
}
}
public override void Start()
{
// determine how many rounds we will need so that the total number of shares is within a factor of 3 of the number in the receiving quorum
IntermediateRoundsRemaining = 0;
int shareCount = Quorums[FROM].Size;
while (3 * shareCount < Quorums[TO].Size)
{
IntermediateRoundsRemaining++;
shareCount *= 3;
}
FinalRoundInitialSharesPerParty = shareCount / Quorums[FROM].Size;
if (Quorums[FROM].HasMember(Me.Id))
{
if (IntermediateRoundsRemaining > 0)
{
// set up the first intermediate round
CurrentRound = new ShareRenewalRound(Me, Quorums[FROM], Quorums[FROM], Shares, Prime, 1, 3, ProtocolId);
FinalRound = false;
}
else
{
// set up the final round
CurrentRound = new ShareRenewalRound(Me, Quorums[FROM], Quorums[TO], Shares, Prime, 1, 1, ProtocolId);
FinalRound = true;
}
}
else
{
// I'm only receiving, so I want to set up the final round
CurrentRound = new ShareRenewalRound(Me, Quorums[FROM], Quorums[TO], null, Prime, FinalRoundInitialSharesPerParty, 1, ProtocolId);
FinalRound = true;
}
CurrentRound.Start();
if (CurrentRound.IsCompleted && FinalRound)
{
IsCompleted = true;
}
}
