Re: TCP/IP Buffer to variable in Scott Klement's sample

Hi Scott

Thanks for your reply and your excellent tutorial.


On 18 September 2013 23:00, Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx> wrote:

1) I would strongly recommend using non-blocking sockets in your
example. These do not wait, but return immediately if there's no data
to read.

I tried using these, but could not get them to work at all, they just
returned nothing all the time.

2) The select() or poll() API (personally, I always use selecT()) can be
used to check if there's data available to read on a socket, or to wait
for data (even on a non-blocking socket) with a timeout.

Poll seems to be working better for me. Why should I not use readln, the
device I am talking to it only ever returns strings ending with a newline
no more than 50 chars long (it's a scale and not that bright).