protected override void PostStop()
{
foreach (var receiver in _state.ActiveReceivers)
{
FailureDetector.Remove(receiver.Address);
}
_heartbeatTask.Cancel();
_cluster.Unsubscribe(Self);
}
/// <summary>
/// TBD
/// </summary>
/// <param name="node">TBD</param>
/// <returns>TBD</returns>
public ClusterHeartbeatSenderState RemoveMember(UniqueAddress node)
{
var newState = MembershipChange(Ring - node);
FailureDetector.Remove(node.Address);
if (newState.OldReceiversNowUnreachable.Contains(node))
{
return(newState.Copy(oldReceiversNowUnreachable: newState.OldReceiversNowUnreachable.Remove(node)));
}
return(newState);
}
/// <summary>
/// TBD
/// </summary>
/// <param name="from">TBD</param>
/// <returns>TBD</returns>
public ClusterHeartbeatSenderState HeartbeatRsp(UniqueAddress from)
{
if (ActiveReceivers.Contains(from))
{
FailureDetector.Heartbeat(from.Address);
if (OldReceiversNowUnreachable.Contains(from))
{
//back from unreachable, ok to stop heartbeating to it
if (!Ring.MyReceivers.Value.Contains(from))
{
FailureDetector.Remove(from.Address);
}
return(Copy(oldReceiversNowUnreachable: OldReceiversNowUnreachable.Remove(from)));
}
return(this);
}
return(this);
}
private ClusterHeartbeatSenderState MembershipChange(HeartbeatNodeRing newRing)
{
var oldReceivers = Ring.MyReceivers.Value;
var removedReceivers = oldReceivers.Except(newRing.MyReceivers.Value);
var adjustedOldReceiversNowUnreachable = OldReceiversNowUnreachable;
foreach (var r in removedReceivers)
{
if (FailureDetector.IsAvailable(r.Address))
{
FailureDetector.Remove(r.Address);
}
else
{
adjustedOldReceiversNowUnreachable = adjustedOldReceiversNowUnreachable.Add(r);
}
}
return(Copy(newRing, adjustedOldReceiversNowUnreachable));
}