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Hi Jane,
On 9/18/2013 1:56 AM, Jane Taubman wrote:
I have a second problem if anyone knows a quick answer. The readln()
function waits for data to arrive, but I need to be able to check for data
arriving with out waiting, eg
Please only use the readln() routine as an example to learn from. It is
not production-quality code -- it's "dumbed down" code meant to be easy
to learn from.
Read the routine... figure out how the recv() API can be used, etc.
Then write your own routine that works the way you want it to work!
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.
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.
-SK
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