Hi,
I would like to provide feedback on these two sections:
5.7.3. Handling of Idle Streams
http://xmpp.org/internet-drafts/draft-saintandre-rfc3920bis-09.html#streams-close-idle
12.7. Whitespace
http://xmpp.org/internet-drafts/draft-saintandre-rfc3920bis-09.html#xml-whitespace
In 5.7.3, it says:
"The typical method for detecting an idle TCP connection is to send
a space
character (U+0020) over the TCP connection between XML stanzas,
which is
allowed for XML streams as described under Section 12.7 (Whitespace)."
Strictly speaking:
- the sending entity does not detect the loss of connection when it
sends
whitespaces
I think you are not right here. From my experience the sending entity
only can
detect connection loss not the receiving.
This is because sometimes TCP/IP doesn't get notified of simple
connection
loss if there is no data transmission over the link.
Only when you attempt to send some data, even a single character, the
TCP/IP
stack tries to deliver it to the destination address. Of course if the
connection
is broken, the attempt fails and an error is returned to sending
application.
Artur
--
Artur Hefczyc
http://www.tigase.org/
http://artur.hefczyc.net/
