Thanks Francois and Wilfried for the replies. I still have no clue why it's causing TCP stack to send TCP zero window to the server... basically when the zero window packet shows up, the connection will break.
-- Best regards, Jack Sunday, December 31, 2006, 12:59:40 AM, you wrote: >> So, my question is, what is wsoNoReceiveLoop for > wsoNoReceiveLoop tell the component to not loop until the message queue has > no more FD_READ messages. When a loop is done (default) the component > receive data as fast as possible. This maybe result is heavy load on the > computer when the network is very fast compared to the CPU speed. >> (and why does it work in my case without setting it), and is >> it safe to not set it? > It shouldn't have any impact on the high level protocol, except speed. > -- > Contribute to the SSL Effort. Visit > http://www.overbyte.be/eng/ssl.html > -- > [EMAIL PROTECTED] > http://www.overbyte.be > ----- Original Message ----- > From: "Jack" <[EMAIL PROTECTED]> > To: "ICS support mailing" <twsocket@elists.org> > Sent: Sunday, December 31, 2006 8:20 AM > Subject: [twsocket] wsoNoReceiveLoop problem with bandwidth limiting >> >> I borrowed some code from HttpProt.pas to limit bandwidth >> in my application. My application is a client socket talking >> to a server in a proprietary protocol. When I download a large >> file, the connection always break. When I observe the traffic >> in Ethereal, I see many error (in red and black) packets saying >> "TCP zero window" being sent to the server when it happens. >> I suspect it has something to do with wsoNoReceiveLoop option, >> Pause and Resume. I then disabled the code calling Pause and >> Resume, but left this line in, >> >> ComponentOptions := ComponentOptions + [wsoNoReceiveLoop]; >> >> the problem remained. I then took the above line out, and >> left Pause and Resume in, I was able to complete the download. >> >> So, my question is, what is wsoNoReceiveLoop for (and why does >> it work in my case without setting it), and is it safe to not >> set it? >> >> -- >> Best regards, >> Jack >> >> -- >> To unsubscribe or change your settings for TWSocket mailing list >> please goto http://www.elists.org/mailman/listinfo/twsocket >> Visit our website at http://www.overbyte.be -- To unsubscribe or change your settings for TWSocket mailing list please goto http://www.elists.org/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
