private void EncodeDead(DeadMessage message, BinaryWriter writer)
{
writer.Write(message.Name);
writer.Write(message.Incarnation);
}
private void HandleDead(IPEndPoint remoteEndPoint, DeadMessage message)
{
TrackedGossipNode node;
lock(_lock)
{
if (!_nodes.TryGetValue(message.Name, out node)) return;
if (message.Incarnation < node.Incarnation) return;
if (node.State == GossipNodeState.Dead) return;
if (node.Name == _configuration.Name)
{
// we need to rebut this if we aren't leaving
if (_leaveEvent == null)
{
int incarnation = GetNextIncarnationNumber();
while ((incarnation = GetNextIncarnationNumber()) <= message.Incarnation) ;
var alive = new AliveMessage(
_configuration.Name,
_configuration.LocalEndPoint,
_configuration.Metadata,
incarnation);
_messagePump.Broadcast(alive, null);
node.Incarnation = incarnation;
return;
}
}
node.Incarnation = message.Incarnation;
node.State = GossipNodeState.Dead;
node.UpdatedAtUtc = DateTime.UtcNow;
_nodes.Remove(node);
}
// leave event will not be null if we are leaving.
// therefore, we will wait in the shutdown method
// until this broadcast goes out.
_messagePump.Broadcast(message, _leaveEvent);
if(NodeLeft != null)
{
NodeLeft(node);
}
}
private void EncodeDead(DeadMessage message, BinaryWriter writer)
{
writer.Write(message.Name);
writer.Write(message.Incarnation);
}
