Rahul Sharma (Editor)

Proactor pattern

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Proactor pattern

Proactor is a software design pattern for event handling in which long running activities are running in an asynchronous part. A completion handler is called after the asynchronous part has terminated. The proactor pattern can be considered to be an asynchronous variant of the synchronous reactor pattern.

Contents

Interaction

Operation specific actors:

  • The Proactive Initiator starts the asynchronous operation via the Asynchronous Operation Processor and defines the Completion Handler
  • Completion Handler is a call at the end of the operation from the Asynchronous Operation Processor
  • Asynchronous Operation

    • Standardized actors

  • The Asynchronous Operation Processor controls the whole asynchronous operation
  • The Completion Dispatcher handles the call, depending on the execution environment.

    • Implementations

  • Proactor and Boost.Asio (C++)
  • Adaptive Communication Environment (C++)
  • libbitcoin (C++)
  • RJR (Ruby)

    • References

    Proactor pattern Wikipedia
    (Text) CC BY-SA


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