/// <summary>
///
/// </summary>
public bool RemoveClient(IArbiterSlimClient client)
{
List <IArbiterSlimClient> clientsHotSwap = _clientsHotSwap;
int id = client.ArbiterSlimIndex;
if (clientsHotSwap.Count <= id || id < 0)
{
SystemMonitor.OperationError("Failed to remove client from ArbiterSlim.");
return(false);
}
if (clientsHotSwap[id].Client != client.Client)
{
SystemMonitor.OperationError("Client [" + client.Client.SubscriptionClientID.ToString() + "] does not belong to this arbiter with this ID.");
return(false);
}
lock (this)
{
clientsHotSwap[id] = null;
_idToIndexHotSwap[client.Client.SubscriptionClientID.Id.Guid] = -1;
}
client.OnRemoveFromArbiter();
return(true);
}
/// <summary>
///
/// </summary>
public bool AddClient(IArbiterSlimClient client)
{
int index = -1;
lock (this)
{// We shall perform a swap of the clients collection, to ensure all operations
// continue while we are doing the add of the client.
if (GetClientIndexById(client.Client.SubscriptionClientID.Id) >= 0)
{// Already added.
return(false);
}
// Since once deployed, collection is never modified, reading like this is safe.
// Just make sure to not use _clients multiple times, rather grab a reference first.
List <IArbiterSlimClient> clientsHotSwap = new List <IArbiterSlimClient>(_clientsHotSwap);
clientsHotSwap.Add(client);
index = clientsHotSwap.Count - 1;
Dictionary <Guid, int> idToIndexHotSwap = new Dictionary <Guid, int>(_idToIndexHotSwap);
// This type of assignment will also work with multiple entries.
idToIndexHotSwap[client.Client.SubscriptionClientID.Id.Guid] = index;
// Instant swaps.
_clientsHotSwap = clientsHotSwap;
_idToIndexHotSwap = idToIndexHotSwap;
}
client.OnAddToArbiter(this, index);
return(true);
}
/// <summary>
///
/// </summary>
public bool Send(int senderID, Envelope envelope)
{
if (_isDisposed)
{// Possible to get disposed while operating here.
return(false);
}
IArbiterSlimClient client = GetClientByIndex(envelope.ReceiverArbiterSlimIndex);
if (client == null)
{
SystemMonitor.OperationError("Failed to find arbiter slim client [" + envelope.ReceiverArbiterSlimIndex.ToString() + "].");
return(false);
}
return(client.Receive(envelope));
}
