Hi Jim, I understand. But I thought that there was no problem with it: when data changes, info will be kept in OmniRig and reported next time when DX4WIN polls OmniRig. Is there a problem with it? 73, Radi
Le Dimanche 16 mars 2014 17h08, Jim Reisert AD1C <jjreis...@alum.mit.edu> a écrit : On Sun, Mar 16, 2014 at 4:19 AM, Radivoj Kar, F6GNZ wrote: > > >> But. looking in the OmniRig's configuration window, there are well a polling >> time and time-outs specified, like in DX4WIN. Running the OmniRig's >> Client.exe program one can see that Omnirig polls the radio and changing the >> frequencies/modes on the rig are well reflected in the Client.exe window. >> But I may have not well interpreted what Paul exactly meant with "OmniRig is >> event driven" .... > >Hi Radi, > >I am going to take a stab at this... > >There are generally two ways to get data. One is the PULL model, >where you continually ask the source if new data is available. When >the data finally changes from the last time you asked, you do >something with it. This is the same as POLLING. It's like being >blind, and having to ask the person next to you if the score in the >football match has changed yet. When it does change, you stand up and >cheer. Depending on how often you ask, it could be minutes after the >goal before you stand up and cheer. > >The other is the PUSH model. The source of the data only sends it to >you when it changes. It doesn't have ears, only a mouth, so it can't >respond to queries. Like the scoreboard at a football match. DX4WIN >would just sit and wait for Omnirig to tell it the that the radio >changed. This is known as event driven. > >DX4WIN only knows how to ask for data, i.e. polling. It doesn't know >what to do with data that is given to it without asking. > >-- >Jim Reisert AD1C, <jjreis...@alum.mit.edu>, http://www.ad1c.us > > ______________________________________________________________ DX4WIN mailing list Home: http://mailman.qth.net/mailman/listinfo/dx4win Help: http://mailman.qth.net/mmfaq.htm Post: mailto:DX4WIN@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
