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Co(ol)routines - Javaforum Q1

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Avatar for Ola Petersson Ola Petersson
February 21, 2019
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Co(ol)routines - Javaforum Q1

Slides for the javaforum gbg q1 presentation

Avatar for Ola Petersson

Ola Petersson

February 21, 2019
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Transcript

  1. CO(OL)ROUTINES NON-BLOCKING KOTLIN

  2. OLA PETERSSON @gotoola [email protected]

  3. None

  4. JUNE, 2018 MISSION: TOP SECRET

  5. TOTWOWITOTTOTEROR

  6. T.W.I.T.T.E.R

  7. “EVERY SECOND, ON AVERAGE, AROUND 6,000 T.W.E.E.T.S. ARE TWEETED ON

    T.W.I.T.T.E.R.”

  8. SO WE NEED TO BE FAST

  9. None
  10. None
  11. None

  12. COROUTINES

  13. COROUTINES ARE LIGHTWEIGHT THREADS

  14. THREAD

  15. THREAD

  16. COROUTINE

  17. COROUTINE

  18. @SinceKotlin("1.1") public interface Continuation<in T> { public val context: CoroutineContext

    public fun resume(value: T) public fun resumeWithException(e: Throwable) }

  19. public static Object getPizzaSlices(@NotNull Continuation c)

  20. None
  21. None

  22. HOW DO WE WRITE ASYNC CODE?

  23. DO YOU EVEN SPEAK FUTURE?

  24. SHARED MUTABLE STATE

  25. COROUTINESCOPE AND LIFECYCLES

  26. NOW WHAT? STRUCTURED CONCURRENCY COROUTINE SCOPE DISPATCHERS (THREAD POOLS) KTOR

    - A KOTLIN FRAMEWORK

  27. HTTP://SLIDES.OLAPETERSSON.SE

  28. HTTP://KOTLIN.OLAPETERSSON.SE

  29. THANKS!