Thanks for the answer Massimo. I will look at it as Twisted supports websockets.
I guess you know about the Twisted framework. Would it be possible to integrate it into web2py or does this not make sence at all? It was the thread about long running processes which made me think that using Twisted Deferred's could be useful. These very excellent tutorials about Twisted and asynchronous programming convinced me to give Twisted a 3rd and 4th try. So now I'm almost getting it. http://krondo.com/?page_id=1327 Peter On 22 Jan., 04:40, Massimo Di Pierro <[email protected]> wrote: > I have not used twisted but I have used tornado for html5 websockets. > > web2py notifies tornado by digitally signing post requests. > > The source is herehttp://code.google.com/p/emte-trading/ > > Massimo > > On Jan 21, 6:08 pm, "Peter M." <[email protected]> wrote: > > > I have made small demonstration client/server project using the > > Twisted framework (http://twistedmatrix.com/) which is just as easy to > > use for client/server projects as web2y is for for web applications > > and now I want to use web2py as frontend for a shared database. > > Twisted web component(s) is not at a state where I want to use it > > (http://twistedmatrix.com/trac/wiki/TwistedWebPlan) and I much rather > > prefer web2py. > > > I have seen at least one person on this list saying he is using web2py > > as frontend for a "Twisted server". I would like advice on how to make > > web2py notify the "Twisted server" about changes in the database. Both > > server applications (the "Twisted server process" and web2py) are > > running on the same server. I guess I could use a table as message > > queue which the Twisted server would read every few seconds. > > > But if wanted a here-and-now notification then how to do it most elegantly? > > > There is a solution which works for PostgreSQLhttp://www.divillo.com/ > > but I prefer a more general solution. > > > Should I send a xml-rpc or soap request from web2py -> Twisted server? > > > Are there other ways to communicate? > > > Has anyone had success trying to import twisted modules into web2py? > > > I guess an integration of Twisted and web2py would make it such a big > > killer product that it will require a license to operate it ;-) > > > Regards > > Peter > >

