Sorry, I missed the general usecase scenario ... and come on, it's not that difficult to implement a wrapper with a "flags" table, even for a general approach... or an "update the first queued task named 'foo'" right at the end of the 'foo' function...it takes maybe 10 lines of code at best. Actually, it would be a lot better (and safer) to code a repeating task that fetches args/vars from a queue stored in a different table (because if you need to coordinate the same task to not run more than 1 at a time, I figure that the only thing that changes is args/vars?! ).
On Saturday, May 3, 2014 9:06:03 AM UTC+2, Paolo Valleri wrote: > > I knew there are bunch of different approaches to implement what I need, > the one I prefer is to use enabled=False/True but by doing that we are > moving that feature (in my view it belongs to the scheduler) in the > function code. In that case, I have to reinvent the wheel, actually I have > also to hard core it, for each function I have to run in that manner. > Moreover, I don't have much control. > I can create a wrapper to flip the enable=True/False, but at that point, > the wrapper could be placed in the scheduler, by setting enable=False > before executing tasks defined as 'concurrent=False'? isn't? > I agree with you, this is not a corner case, and to be honest, I also need > tasks dependencies for other elaborations :P > > Paolo > > 2014-05-02 21:21 GMT+02:00 Niphlod <[email protected] <javascript:>>: > >> What's the "general" use case ? >> There are a bunch of simple different things you can do right in the >> current scheduler to achieve that goal.... >> - schedule the same with different start_time(s) >> - queue the first with enabled=True and the following with enabled=False >> with a callback that flips the enabled bit for the next one >> - use an external "lock" record to coordinate >> - use a task that coordinates "subtasks" (always flipping the enabled bit) >> - etc etc etc >> >> TBH, I see other things as useful for a lot of cases (i.e. tasks >> dependencies, e.g. task A needs to run before task B)....right now this >> feels like a corner case. It's also a bit difficult to implement without >> external tables, but that's another story....if it's useful we'll make it >> work ^_^ >> >> -- >> Resources: >> - http://web2py.com >> - http://web2py.com/book (Documentation) >> - http://github.com/web2py/web2py (Source code) >> - https://code.google.com/p/web2py/issues/list (Report Issues) >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "web2py-users" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/web2py/BGwg4ky6QB4/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
