Maybe "background loop" is the wrong term. I have a timer generating an event every 50mS. This routine processes the data from the USB and FTP.
Graham -----Original Message----- From: twsocket-boun...@elists.org [mailto:twsocket-boun...@elists.org] On Behalf Of Francois PIETTE Sent: 28 January 2011 09:42 To: ICS support mailing Subject: Re: [twsocket] Using the FTP Client >> While the FTP data is being processed, the USB is continually >> monitored and FTP processing is interrupted to service the USB. > > Reading that rings the bell in my head ! > If you are using polling, then this is bad design. > Use two separate threads to handle USB and to handle FTP. Each thread > should work purely asynchronous (as ICS does) or work blocked on a > read or write (for the USB). Never use a polling loop. > The USB is read by a high priority thread and stored in a buffer. The > background loop monitors the USB buffer and the buffered streams from > the FTP and processes accordingly. OK, but what is the "background loop" ? If it is a pure loop checking for boolean or integer variable flags, then it is bad design: you consume a lot of CPU for nothing. If it is a loop using windows events (I mean http://msdn.microsoft.com/en-us/library/ms682396(v=vs.85).aspx), semaphore or mutex, then it is probably OK. -- francois.pie...@overbyte.be The author of the freeware multi-tier middleware MidWare The author of the freeware Internet Component Suite (ICS) http://www.overbyte.be -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
