close connection ID TCP

[vicens]

I'm trying to create a communication client/server. I have achieved to establish the communication and to send messages between clients and server (like a "chat"). 1. My problem arise when I need close the program server. When I stop the VI it doesn't stop (I think the problem is in LOOP1). 2. In LOOP 2 of server I need a wait to run it slowly...why? TCP read timeout doesn't work? Thanks

[MikeS81]

Hi vicens,

it sounds like the vi hangs in the TCP listener. You can close the Listener Refnum to stop the the listener waiting on new connections.

If this doesn't help, then please show us your vi.

Mike

[vicens]

I forgot to attach VI! Vicen

[vicens]

this is the vi

Vicen

[MikeS81]

Hi Vicen,

it should work if you move the function to close the listener into the 3rd loop.

See the attached picture.

Mike

[vicens]

Thank you MikeS8,

The VI can to close it, but it occurs Error 1.

Is not important error?

[MikeS81]

Hi vicens,

where did you get this error? Can you upload your changed vi?

Mike

[vicens]

The vi changed runs good, but when I stop the program occurs Error 1 in loop1.

Vicens

WinXP LV7.1/10

[MikeS81]

Hi vicens,

the error is correct, because if you close the listener (what you do in loop 3), then the listener will result with an error and the output is "not a refnum", so you can't read data with the "read function". You can avoid it, if you check which error occurs from the listener and react on it. If you get an error, then you don't need to run the read funtion.

Mike

[vicens]

Ok Thank you very much. Vicens