I am trying to have two programs that both connect to IQFeed at the same time.
One is Neoticker, the other is Pracplay/Tradelink that has a iqfeed connector built

When I try to connect with Tradelink and Neoticker is already connected, I cannot connect.
However when I do the reverse order, Neoticker can connect fine and they are both pulling data.

I assume therefore the problem is with the Tradelink connector not handling the fact that Neoticker already has loaded iqfeed and is logged in.

We get an error in the Tradelink connector log as such:

 235530: l1 error: The IAsyncResult object was not returned from the corresponding asynchronous method on this class.
Parameter name: asyncResult   at System.Net.Sockets.Socket.EndReceive(IAsyncResult asyncResult, SocketError& errorCode)
   at System.Net.Sockets.Socket.EndReceive(IAsyncResult asyncResult)
   at IQFeedBroker.IQFeedHelper.OnReceiveData(IAsyncResult result)

Can you advise how to allow for supporting existing connections in the code?

thanks

There is nothing in the client that would cause this behavior. I am afraid Tradelink will have to be your next step in troubleshooting this. There is no limit on number of connections to the IQFeed client, so I am not sure what they are trying to do that causes this.

Tim

can Tradelink/Pracplay post here to get support for what to do in their code?
or is there a different channel for this?

thanks for your reply

Hello Borsaci,

Do you have a contact for their developers? I would be happy to send them an email on your behalf concerning your issue that we discussed via email.

Tim

I found it, I'll send a question their way.

support@pracplay.com

However I'm working with them directly, and they also have a login on the forum. I can have them reply to this thread if that's better.

thanks

Great, please do so, if they have any questions for me I would be happy to help.

btw, which version of Neoticker do you have?

Another point, just so you aware, is that this could have nothing to do with Pracplay. Neoticker may be doing something that is throwing off the synchonization of the sockets between the send and receive function calls. I just did a brief search and found an article that discusses this behavior and error.

I can't confirm that this is what is happening, given that I have no access to their code, but it seems reasonable to the sypmtoms you are seeing. If nothing else, it certainly would deserve research as a possible cause.

http://rajputyh.blogspot.com/2010/04/solve-exception-message-iasyncresult.html

I'm on Neoticker v4.60 Build 4

I'll check out the link shortly. thanks

if the problem is in fact Neoticker, then i'm guessing i'd have issues in the case where I turn on the Tradelink connector before Neoticker.
So far doing this seems to allow both to run fine together with the IQFeed client.

My hunch, and it is just that, is that the Tradelink connector is trying to load IQFeed client again which poses a problem since it's already loaded and authenticated.

I will ask Pracplay support to weight in.

To remove Neoticker from the equation I was able to reproduce the issue with the Tradelink connector by simply starting the iqfeed client from the iqlink launcher then trying to connect with the Tradelink connector.

So I think somehow it is not detecting that the iqfeed client is already logged in.

Good to hear that you could eliminate them from the puzzle, Pracplay emailed me and said they believe they have a handle on this as well, but will contact me if I am needed as well. Let us know how it goes.