Is there a convenient way within Clojure to launch a Clojure function or Java call in a separate process as opposed to a separate thread? Only way I know of is to literally shell out to the command prompt and launch a new executable.
On Wed, Jan 22, 2014 at 12:19 PM, Jozef Wagner <jozef.wag...@gmail.com>wrote: > If you want to be able to control an arbitrary long-running function, a > safe way is to run it in a separate process. That way you can safely > terminate it anytime you want. Of course this opens up a lot of other > issues .... :) > > > On Wed, Jan 22, 2014 at 9:15 PM, Mark Engelberg > <mark.engelb...@gmail.com>wrote: > >> I think the fib example is a good one in the sense that you are dealing >> with an already function that takes a long time, and isn't written as a >> loop. >> >> But in general, I want to solve the problem for an arbitrary long-running >> computation, for example, a call into a library that you don't control. >> >> One of the flagship examples for core.async is the example where you try >> two different engines to look something up, return the first one or >> timeout. Similarly, I want to try to solve a computational problem two >> different ways, and take the first solution or timeout. But of course, >> that only works if I can stop the computation from spinning CPU once I >> already have a solution (or timeout). >> >> Rewriting the underlying algorithms to constantly check for an interrupt >> is not an option. >> >> >> >> >> On Wed, Jan 22, 2014 at 11:31 AM, Praki Prakash >> <praki.prak...@gmail.com>wrote: >> >>> What is the task doing? If it is in a tight loop, it must check >>> explicitly whether the interrupt flag is set and abort. If it is waiting on >>> some resource, it will receive InterruptedException. >>> >>> Regards, >>> Praki Prakash >>> >>> >>> On Wed, Jan 22, 2014 at 11:20 AM, Mark Engelberg < >>> mark.engelb...@gmail.com> wrote: >>> >>>> On Wed, Jan 22, 2014 at 2:51 AM, Jozef Wagner >>>> <jozef.wag...@gmail.com>wrote: >>>> >>>>> You can put the computation into a future, and cancel the future after >>>>> the timeout. >>>>> >>>> >>>> I experimented with that, but it didn't seem to work. I suspect that >>>> "canceling a future" doesn't really do what I think it should do. I would >>>> appreciate some further clarity on how future cancellations work, and if >>>> someone thinks it applies here, would like to see concretely how to do it. >>>> >>>> -- >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Clojure" group. >>>> To post to this group, send email to clojure@googlegroups.com >>>> Note that posts from new members are moderated - please be patient with >>>> your first post. >>>> To unsubscribe from this group, send email to >>>> clojure+unsubscr...@googlegroups.com >>>> For more options, visit this group at >>>> http://groups.google.com/group/clojure?hl=en >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "Clojure" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to clojure+unsubscr...@googlegroups.com. >>>> For more options, visit https://groups.google.com/groups/opt_out. >>>> >>> >>> -- >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Clojure" group. >>> To post to this group, send email to clojure@googlegroups.com >>> Note that posts from new members are moderated - please be patient with >>> your first post. >>> To unsubscribe from this group, send email to >>> clojure+unsubscr...@googlegroups.com >>> For more options, visit this group at >>> http://groups.google.com/group/clojure?hl=en >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Clojure" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to clojure+unsubscr...@googlegroups.com. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> -- >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clojure@googlegroups.com >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+unsubscr...@googlegroups.com >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en >> --- >> You received this message because you are subscribed to the Google Groups >> "Clojure" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to clojure+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. > -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. 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