Stateless Actors

1 comments

• mrkeen 1 hour ago
  A race condition:

    Two processes intend to add two to a number.
  
    They each read the current value.
  
    Then they each write back the value which is two bigger then the original.
  

  If you instead use private fields and public getters/setters, or use actors to form a protective bubble around the mutable state, you get...

  The exact same thing but with more boilerplate.

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  • hackyhacky 10 minutes ago
    The key feature of Erlang-style actors is that messages are enqueued and processed serially, thus eliminating race conditions of this type.