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From: Andrew on 16 Jun 2010 17:15
"Luke " <nowhere(a)nowhere.com> wrote in message <geu039$o21$1(a)fred.mathworks.com>...
> So, I just found the secret, the tcpip object has a member called "BytesAvailable"
>
> So then, fread(oTcpIp, oTcpIp.BytesAvailable); does the trick without ever hitting a timeout.
>
> Hope this helps somebody, i just spent a few hours searching, and then accidentally did a mouseover my tcp object in the debugger...
....

Thanks for following up, this was useful.

andrew
From: Ankit Desai on 17 Jun 2010 09:42
"Andrew " <abogaard(a)gmail.com> wrote in message <hvbet8$5hp$1(a)fred.mathworks.com>...
> "Luke " <nowhere(a)nowhere.com> wrote in message <geu039$o21$1(a)fred.mathworks.com>...
> > So, I just found the secret, the tcpip object has a member called "BytesAvailable"
> >
> > So then, fread(oTcpIp, oTcpIp.BytesAvailable); does the trick without ever hitting a timeout.
> >
> > Hope this helps somebody, i just spent a few hours searching, and then accidentally did a mouseover my tcp object in the debugger...
> ...
>
> Thanks for following up, this was useful.
>
> andrew

There are a couple of properties and function that you might want to take advantage of.

Callback functions like BytesAvailableFcn (along with BytesAvailableFcnMode and BytesAvailableFcnCount properties) allows you to read data only when it is available.

A timeout is a classic indication (as the warning suggests) that you are trying to read X amount of data when X amount is not available in the object's inputbuffer.

Setting up BytesAvailableFcn to read when BytesAvailableFcnMode = 'bytes' and BytesAvailableFcnCount = <number of bytes you want to read per read>; might be useful.

Hope this helps,

-Ankit
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