private void SendDispatchLoop()
{
while (true)
{
if (scheduler.Verbose)
{
Console.WriteLine("Waiting for the next send to dispatch");
}
SendTask sendTask = sendQueue.Receive();
if (scheduler.Verbose)
{
Console.WriteLine("Dispatching send of message of size {0} to {1}",
sendTask.Message.Length, IoScheduler.PublicKeyToString(sendTask.DestinationPublicKey));
}
SenderThread senderThread = scheduler.FindSenderForDestinationPublicKey(sendTask.DestinationPublicKey);
if (senderThread == null)
{
senderThread = ClientSenderThread.Create(scheduler, sendTask.DestinationPublicKey);
}
senderThread.EnqueueSendTask(sendTask);
}
}
private void Run()
{
try
{
if (Connect())
{
SendLoop();
}
}
catch (Exception e)
{
scheduler.ReportException(e, "sending to " + EndpointDescription());
}
scheduler.UnregisterSender(destinationPublicKey, this);
// If we crashed in the middle of sending a packet, re-queue it
// for sending by another sender thread.
if (currentSendTask != null)
{
scheduler.ResendPacket(currentSendTask);
currentSendTask = null;
}
// If there are packets queued for us to send, re-queue them
// for sending by another sender thread.
while (sendQueue.TryReceive(out currentSendTask))
{
scheduler.ResendPacket(currentSendTask);
currentSendTask = null;
}
}
public void ResendPacket(SendTask sendTask)
{
if (sendTask.IncrementNumTriesSoFar() < maxSendTries)
{
sendDispatchThread.EnqueueSendTask(sendTask);
}
}
protected SenderThread(IoScheduler i_scheduler, byte[] i_destinationPublicKey, SslStream i_stream,
X509Certificate2 i_remoteCert)
{
scheduler = i_scheduler;
destinationPublicKey = i_destinationPublicKey;
stream = i_stream;
remoteCert = i_remoteCert;
sendQueue = new BufferBlock <SendTask>();
currentSendTask = null;
}
public bool SendPacket(byte[] remotePublicKey, byte[] message)
{
try {
byte[] messageCopy = new byte[message.Length];
Array.Copy(message, messageCopy, message.Length);
byte[] remotePublicKeyCopy = new byte[remotePublicKey.Length];
Array.Copy(remotePublicKey, remotePublicKeyCopy, remotePublicKey.Length);
SendTask sendTask = new SendTask(remotePublicKeyCopy, messageCopy);
if (verbose)
{
Console.WriteLine("Enqueueing send of a message of size {0} to {1}", message.Length,
PublicKeyToString(remotePublicKey));
}
sendDispatchThread.EnqueueSendTask(sendTask);
return(true);
}
catch (Exception e) {
Console.Error.WriteLine("Unexpected error when trying to send a message. Exception:\n{0}", e);
return(false);
}
}
private void SendLoop()
{
if (scheduler.Verbose)
{
Console.WriteLine("Starting send loop with {0}", EndpointDescription());
}
while (true)
{
// Wait for there to be a packet to send.
currentSendTask = sendQueue.Receive();
// Send its length as an 8-byte value.
UInt64 messageSize = (UInt64)currentSendTask.Message.Length;
IoEncoder.WriteUInt64(stream, messageSize);
if (scheduler.Verbose)
{
Console.WriteLine("Sent message size {0} to {1}", messageSize, EndpointDescription());
}
// Send its contents.
IoEncoder.WriteBytes(stream, currentSendTask.Message, 0, messageSize);
if (scheduler.Verbose)
{
Console.WriteLine("Sent message of size {0} to {1}", messageSize, EndpointDescription());
}
// Set the currentSendTask to null so we know we don't have to
// resend it if the connection fails.
currentSendTask = null;
}
}
public void EnqueueSendTask(SendTask sendTask)
{
sendQueue.Post(sendTask);
}
