On Mon, 26 May 2003, "Thomas Weholt" <2002@weholt.org> wrote:

I need to load a business-object in a Twisted Web server serving static content and rpys, and it should be available in all parts of the application. It has to be able to run a method or methods at specified intervals, fetching some files from the net, scanning a filesystem or extracting data from a database, which in return will be available in the business-object in the web-server. What is the Twisted-way of doing this? The tasks the business-object will perform from time to time can be time consuming and probably blocking too.

Should a start it in a seperate thread? What ? I need clues or a small example.

Please don't post in HTML to the list. The correct Twisted way is to have an ApplicationService which does all that, keeping track of tasks, and which has a "resource" attribute. Deployment of that code is flexible, as it should be: one way would be to add the ApplicationService to the Application, and in the .rpy get the application, get the service by name and get the resource from it. I seriously doubt you "need" to perform blocking tasks, at least in your code. Database can be abstracted with adbapi, scanning a file system can easily be partitioned into small tasks, and then you can use reactor.callLater(0,) to stay responsive and fetching files from the net is easy in a nonblocking way (see web.client) -- Moshe Zadka -- http://moshez.org/ Buffy: I don't like you hanging out with someone that... short. Riley: Yeah, a lot of young people nowadays are experimenting with shortness. Agile Programming Language -- http://www.python.org/