/// <summary>
/// Stops this instance.
/// </summary>
public void StopInternal()
{
try
{
// stop the broadcast
if (_broadcast != null)
{
_broadcast.PeerDiscovered -= OnBroadcastPeerDiscovered;
_broadcast.Stop();
_broadcast = null;
}
// Signal stop and wake up consumer
if (_cancellationTokenSource != null)
{
_cancellationTokenSource.Cancel();
}
if (_dataAvailable != null)
{
_dataAvailable.Set();
}
// Release poll task
if (_mailboxPollTask != null)
{
_mailboxPollTask.Wait(TimeSpan.FromSeconds(5));
_mailboxPollTask.Dispose();
_mailboxPollTask = null;
}
// Release poll task
if (_mailboxProcessTask != null)
{
_mailboxProcessTask.Wait(TimeSpan.FromSeconds(5));
_mailboxProcessTask.Dispose();
_mailboxProcessTask = null;
}
// Release signal
if (_dataAvailable != null)
{
_dataAvailable.Dispose();
_dataAvailable = null;
}
// Release token source
if (_cancellationTokenSource != null)
{
_cancellationTokenSource.Dispose();
_cancellationTokenSource = null;
}
// Release mailbox router
if (_mailbox != null)
{
_mailbox.Close();
_mailbox.Dispose();
_mailbox = null;
}
// Release peers
{
var peers = _peers;
if (peers != null)
{
foreach (var kvp in peers)
{
DisconnectPeer(kvp.Key);
}
peers.Clear();
_peers = null;
}
}
// Release inbound queue
if (_mailboxMessageQueue != null)
{
ZmqMessage discarded;
while (_mailboxMessageQueue.TryDequeue(out discarded)) {}
_mailboxMessageQueue = null;
}
// Lose context
if (_context != null)
{
_context.Terminate();
_context.Dispose();
_context = null;
}
}
catch (Exception e)
{
Console.Error.WriteLine("An error occured during disposal: {0}", e.Message);
throw;
}
finally
{
// Oink
Started = false;
}
}
/// <summary>
/// Starts this instance.
/// </summary>
public bool Start()
{
if (Started) return true;
// Prepare peer asynchronous operation
_cancellationTokenSource = new CancellationTokenSource();
_peers = new ConcurrentDictionary<Guid, Node>();
_mailboxMessageQueue = new ConcurrentQueue<ZmqMessage>();
_dataAvailable = new AutoResetEvent(false);
// Create the context
_context = ZmqContext.Create();
// Create the mailbox router and connect it
_mailbox = _context.CreateSocket(SocketType.ROUTER);
_mailbox.Bind("tcp://*:*");
// Port ermitteln
var port = _mailbox.LastEndpoint.Split(':').Last();
if (!UInt16.TryParse(port, NumberStyles.Integer, CultureInfo.InvariantCulture, out _mailboxPort))
{
Trace.TraceError("Could not parse ZRE router port '{0}'", port);
StopInternal();
return false;
}
// Start mailbox processing task
_mailboxPollTask = Task.Factory.StartNew(MailboxPollTask, new ConsumerTaskState(_mailbox, _cancellationTokenSource.Token, _dataAvailable, _mailboxMessageQueue), TaskCreationOptions.LongRunning);
_mailboxProcessTask = Task.Factory.StartNew(MailboxProcessTask, new ConsumerTaskState(null, _cancellationTokenSource.Token, _dataAvailable, _mailboxMessageQueue), TaskCreationOptions.LongRunning);
// Broadcast erzeugen
Trace.Assert(_broadcastFactory != null);
_broadcast = _broadcastFactory.Create(_uuid, _mailboxPort);
_broadcast.PeerDiscovered += OnBroadcastPeerDiscovered;
_broadcast.Start();
// Oink
Started = true;
return true;
}
