Let's see what the experts say, but you could put the actor in a "suspended" state using become(). Take a look at the link I provided and see if that makes any sense.
On Mon, Oct 13, 2014 at 7:39 AM, Joheinz <[email protected]> wrote: > What I had been trying to express (non-native speaker), is that when the > actor processes/creates a future in the receive method, it will very > quickly proceed the next message, without a guarantee that the future is > completed. What I somehow would like to achieve: avoid Await.result due to > its blocking characteristics, but also prevent the actor from creating to > much noise. I do not know it is possible, but I imagine that I could > somehow tell the mailbox of the actor to proceed only when the future the > actor had created is completed. > > Hopefully that makes more sense, > > Markus > > > 2014-10-13 16:28 GMT+02:00 Richard Rodseth <[email protected]>: > >> I don't follow your snippet. Receive is a partial function from Any to >> Unit, so it doesn't return anything. >> >> def receive = { >> case Start => { >> val futureResult = someFuture >> someFuture pipeTo sender >> } >> } >> >> You don't need to add an ask- you can just pipe someFuture to self or the >> sender. The result will be queued in the sender's mailbox when the future >> completes. >> If you're careful about "closing over self" you can also implement >> future.onComplete within the receive block. >> >> If the sender is sensitive to the order of messages received, it can use >> become() to change states or use the FSM trait. >> http://letitcrash.com/post/54507231889/2-2-spotlight-simpler-use-of-stash >> >> Hope this helps. >> >> >> On Mon, Oct 13, 2014 at 6:47 AM, Joheinz <[email protected]> wrote: >> >>> Hi *, >>> >>> Let's say I have an actor which receives a message Start and is >>> processing this message asynchrounously. >>> >>> someActor ! start >>> >>> class SomeActor { >>> def receive = { >>> case Start => >>> for { >>> _ <- someFuture >>> } yield () >>> } >>> >>> Because processing of Start happens asynchronous it could be that >>> SomeActor receives more messages before the processing of start is >>> completed. >>> >>> What would be my options to improve this behaviour? >>> - I could use Await.result - which does not seem to be a reasonable >>> option >>> - I could use the ask pattern and pipe the response back to the sender. >>> In that case what would happen if other actors send me messages? >>> >>> Are there any other ways to deal with this situation? I am concerned >>> that messages arrive when the actor is not in a stable state yet, and I >>> would like to prevent this. >>> >>> Thanks, >>> Markus >>> >>> >>> >>> >>> >>> -- >>> >>>>>>>>>> Read the docs: http://akka.io/docs/ >>> >>>>>>>>>> Check the FAQ: >>> http://doc.akka.io/docs/akka/current/additional/faq.html >>> >>>>>>>>>> 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 [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at http://groups.google.com/group/akka-user. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> >>>>>>>>>> Read the docs: http://akka.io/docs/ >> >>>>>>>>>> Check the FAQ: >> http://doc.akka.io/docs/akka/current/additional/faq.html >> >>>>>>>>>> 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 [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at http://groups.google.com/group/akka-user. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > >>>>>>>>>> Read the docs: http://akka.io/docs/ > >>>>>>>>>> Check the FAQ: > http://doc.akka.io/docs/akka/current/additional/faq.html > >>>>>>>>>> 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 [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/d/optout. > -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> 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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