On Fri, Feb 21, 2014 at 4:38 PM, Sam Halliday <sam.halli...@gmail.com>wrote:
> It's not difficult in the way that it has been proposed. But I would like > to be able to abstract it in a clean way that doesn't steal responsibility > (from the mailbox). > The only responsibility of the exclusive actor would be to keep track of this. > > Also, this approach demands that the message queue be ordered since "I'm > Finished" messages are of very high priority. > Not needed. It is not going to block until it receives enough Finished. It receives all messages and puts everything but Finished in an internal buffer. You can even use Stash for this. Describing it in more detail would take away all the fun from you. Give it a try. Cheers, Patrik > > > On Friday, 21 February 2014 15:20:57 UTC, Alec Zorab wrote: > >> Surely it's just standard application logic? The parent enforces the >> exclusivity just like any other application logic. What's the difficulty? >> >> >> On 21 February 2014 14:47, Sam Halliday <sam.ha...@gmail.com> wrote: >> >>> Sorry, how to know when the children have finished is not the right >>> question. What I really mean is how can the exclusivity be enforced without >>> introducing a lock in the delegating actor in order to allow waiting until >>> the children actors are all available? >>> >>> To introduce a lock like this would seem to me to be something that is >>> best achieved in the framework itself... would it be difficult to do such a >>> thing? >>> >>> >>> >>> On Friday, 21 February 2014 14:37:15 UTC, Sam Halliday wrote: >>>> >>>> On Friday, 21 February 2014 14:28:44 UTC, Patrik Nordwall wrote: >>>> >>>>> On Fri, Feb 21, 2014 at 2:50 PM, Sam Halliday <sam.ha...@gmail.com>wrote: >>>>> >>>>>> Hi all, >>>>>> >>>>>> Is there any concept of mutually exclusive actor paths? >>>>>> >>>>> >>>>> No >>>>> You could build it within the exclusive actor, if you send all >>>>> messages via that actor, including replies (or signals of completion). >>>>> >>>>> >>>> But how would I be able to tell that my child actors were actually >>>> finished processing the messages? >>>> >>>> >>>> >>>>> >>>>> >>>>> >>>>> >>>> >>>>>> What I mean by this is that >>>>>> >>>>>> /user/exclusive/A >>>>>> /user/exclusive/B >>>>>> >>>>>> are mutually exclusive (where A may be a round robin router of many >>>>>> As) between A and B. >>>>>> >>>>>> This would enable concepts such as read/write actors where e.g. A >>>>>> could be the reader and B the writer, with many As allowed at once (with >>>>>> no >>>>>> B message processing) and when B does any processing it stops messages >>>>>> being sent to the As. >>>>>> >>>>>> >>>>>> -- >>>>>> >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>> >>>>>>>>>> Check the FAQ: http://akka.io/faq/ >>>>>> >>>>>>>>>> Search the archives: https://groups.google.com/grou >>>>>> p/akka-user >>>>>> --- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Akka User List" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to akka-user+...@googlegroups.com. >>>>>> To post to this group, send email to akka...@googlegroups.com. >>>>>> Visit this group at http://groups.google.com/group/akka-user. >>>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> >>>>> Patrik Nordwall >>>>> Typesafe <http://typesafe.com/> - Reactive apps on the JVM >>>>> Twitter: @patriknw >>>>> >>>>> -- >>> >>>>>>>>>> Read the docs: http://akka.io/docs/ >>> >>>>>>>>>> Check the FAQ: http://akka.io/faq/ >>> >>>>>>>>>> Search the archives: https://groups.google.com/ >>> group/akka-user >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Akka User List" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to akka-user+...@googlegroups.com. >>> To post to this group, send email to akka...@googlegroups.com. >>> Visit this group at http://groups.google.com/group/akka-user. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> -- > >>>>>>>>>> Read the docs: http://akka.io/docs/ > >>>>>>>>>> Check the FAQ: http://akka.io/faq/ > >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user > --- > You received this message because you are subscribed to the Google Groups > "Akka User List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to akka-user+unsubscr...@googlegroups.com. > To post to this group, send email to akka-user@googlegroups.com. > Visit this group at http://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/groups/opt_out. > -- Patrik Nordwall Typesafe <http://typesafe.com/> - Reactive apps on the JVM Twitter: @patriknw -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: http://akka.io/faq/ >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. 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