StreamSocket Questions

[DougE]

Hi,

Is there a way to determine if a socket has been closed other than with a try-catch block?

Is there a way to interrupt a receiveBytes call other than closing the socket?

What condition(s) does the poll(to, SELECT_ERROR) call return true?

It seems that if the peer connection has been closed then the poll(to, SELECT_READ) and poll(to, SELECT_WRITE) will both return true. Can both calls return true without the peer being closed?

(:confused:)

[guenter]

Since the POCO sockets API is just a very thin layer above BSD sockets, almost all of the various socket programming issues apply to POCO.
As a first reader, I'd recomment the http://www.faqs.org/faqs/unix-faq/socket/ Unix Socket FAQ (section 2.1 provides the answer to your first question).
To dig deeper, get the excellent Unix Network Programming, Volume 1 by W. Richard Stevens. The ultimate source on everything sockets. (I'd have posted a link to Amazon, but amazon.com is currently down. OMG!!!)