true, a new new-IO would have to be written :) and a lot of libraries to be modified which would not be easy.

But the problem with blocking syscalls is true for actors too. And the developer needs to take extra care anyway.

Maybe rephrase and say that continuations would make parallel code looks as if running serially which seems like a good thing to me. I tend to have serial processes in what I do and tend to simulate it with messages like

actorA send msg X1 to B
actorB do whatever with X1 and send C to actorA
actorA act on C by completing the process

effectively the above is (on actorA)

actorB.do(X1)
... complete the process


On 11/11/15 15:16, Viktor Klang wrote:


On Wed, Nov 11, 2015 at 4:02 PM, 'Konstantinos Kougios' via Akka User List <[email protected] <mailto:[email protected]>> wrote:

    useful advice, thanks everyone.

    I wonder why continuations didn't catch up. continuations
    "blocking" would be of no issue. I/O and even sleep(x) would be
    possible with no overhead.


That is not *really* true—if you call blocking syscalls then you're calling blocking syscalls.



    On 11/11/15 14:37, Richard Rodseth wrote:
    Also see

    
http://doc.akka.io/docs/akka/snapshot/general/actor-systems.html#Blocking_Needs_Careful_Management

    On Tue, Nov 10, 2015 at 2:04 PM, Guido Medina <[email protected]
    <mailto:[email protected]>> wrote:

        I have actors such like *AccountProcessor* and
        *AccountPersistor*, AccountPersistor is a child of
        AccountProcessor and at its creation I pass a different
        dispatcher, assuming your code is in Scala here is better
        explained:

        http://doc.akka.io/docs/akka/snapshot/scala/dispatchers.html

        HTH,

        Guido.


        On Monday, November 9, 2015 at 10:23:38 PM UTC, Kostas
        kougios wrote:

            I have some code that will take some time to execute.
            This code runs in a few steps with each step "blocking"
            for some time to store data into files.

            I am thinking in creating a new actor which can receive 1
            message for each step. Will the block part affect only
            that actor or will other actors be affected (since
            threads are reused in the actorsystem)?

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