/// <summary>
/// Called when the channel is open after the call to select().
/// </summary>
public void AfterSelectOpen(SelectSockets selectSockets)
{
// Perform transfers only if the socket is ready.
if (!selectSockets.InReadOrWrite(Sock)) return;
// Build the received message list.
List<AnpMsg> recvList = new List<AnpMsg>();
while (true)
{
// Prepare a transfer.
PrepareNextMsgTransfer();
// Remember if we are sending a message.
bool sendingFlag = Transport.IsSending;
// Do transfers.
Transport.DoXfer();
// Stop if no message has been received and no message has been sent.
if (!Transport.DoneReceiving && (!sendingFlag || Transport.IsSending)) break;
// Add the message received.
if (Transport.DoneReceiving) recvList.Add(Transport.GetRecv());
}
// Dispatch the received messages.
if (recvList.Count > 0) Worker.NotifyMsgReceived(ChannelID, recvList);
}
/// <summary>
/// Analyse the result of the select() call for the specified KCD.
/// </summary>
private void UpdateStateAfterSelect(KcdThreadHost k, SelectSockets selectSockets)
{
try
{
k.CheckNoMessageReceivedInvariant();
// We have nothing to do if we don't have an established TCP
// connection.
if (k.ConnStatus != KcdThreadConnStatus.Connected &&
k.ConnStatus != KcdThreadConnStatus.RoleReply) return;
// Perform transfers only if the socket is ready.
Debug.Assert(k.Tunnel.Sock != null);
if (!selectSockets.InReadOrWrite(k.Tunnel.Sock)) return;
// Do up to 20 transfers (the limit exists for quenching purposes).
for (int i = 0; i < 20; i++)
{
// Send a message if possible.
k.SendNextQueuedMsgIfNeeded();
// Remember if we are sending a message.
bool sendingFlag = k.Tunnel.IsSendingMessage();
// Do transfers.
k.Tunnel.DoXfer();
// Stop if no message has been received and no message has been sent.
if (!k.Tunnel.HasReceivedMessage() &&
(!sendingFlag || k.Tunnel.IsSendingMessage())) break;
// Process the message received.
if (k.Tunnel.HasReceivedMessage()) ProcessIncomingKcdMessage(k, k.Tunnel.GetMsg());
}
k.CheckNoMessageReceivedInvariant();
}
catch (Exception ex)
{
HandleDisconnectedKcd(k, ex);
}
}
