Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Co(ol)routines - Javaforum Q1

Sponsored · Your Podcast. Everywhere. Effortlessly. Share. Educate. Inspire. Entertain. You do you. We'll handle the rest. →
Avatar for Ola Petersson Ola Petersson
February 21, 2019
Education
150
0

Co(ol)routines - Javaforum Q1

Slides for the javaforum gbg q1 presentation

Avatar for Ola Petersson

Ola Petersson

February 21, 2019

More Decks by Ola Petersson

See All by Ola Petersson
NDC_Oslo__DevOps_in_Real_Life_-_A_How_To.pdf
Avatar for Ola Petersson olbpetersson
0
86
Coolroutines - non-blocking Kotlin
Avatar for Ola Petersson olbpetersson
0
100
JWTB - Begin EventSourcing With Lagom
Avatar for Ola Petersson olbpetersson
0
120
Begin EventSourcing with Lagom - Javaforum Q4 2017
Avatar for Ola Petersson olbpetersson
0
89
Begin Event Sourcing with Lagom
Avatar for Ola Petersson olbpetersson
2
200
JavaOne - Reactive Java EE
Avatar for Ola Petersson olbpetersson
0
160
JHipster - The best way to breed a new app
Avatar for Ola Petersson olbpetersson
0
860
Reactive Java EE
Avatar for Ola Petersson olbpetersson
0
360

Other Decks in Education

See All in Education
Estimating Group × Time Interaction in Scale-Transformed CEFR-J Self-Assessment Scores: A Case in Study-Abroad Research
Avatar for Ken Urano uranoken
0
160
【デザイナー就活講座】 デザイナー就活市場・企業探し・ポートフォリオのポイント
Avatar for ko hasebe koheihasebe
0
400
[2026前期火５] 論理学（京都大学文学部 前期 第4回）「 ならば（→）の導入と証明ネット」
Avatar for Shunsuke Yatabe yatabe
0
530
子どものためのプログラミング道場『CoderDojo』〜法人提携例〜 / Partnership with CoderDojo Japan
Avatar for CoderDojo Japan coderdojojapan
PRO
4
19k
Data Management and Analytics Specialisation
Avatar for Beat Signer signer
PRO
0
1.9k
教育現場から見た Ruby on Rails
Avatar for YassLab yasslab
PRO
0
240
2026年度春学期　統計学　第7回　データの関係を知る（２）ー 回帰と決定係数 (2026. 5. 21)
Avatar for Akira Asano akiraasano
PRO
0
250
[2026前期火５] 論理学（京都大学文学部 前期 第5回）「 ならばの問題演習・proof net・かつの規則」
Avatar for Shunsuke Yatabe yatabe
0
380
Throw Yourself In! - How I've learned English and What I'm Facing
Avatar for Takeshi "George" Matsuda georgeorge
1
210
면접관 눈에 띄는 데이터 분석 포트폴리오 만드는 법 | 2026년 5월 세미나
Avatar for 데이터리안 datarian
0
1k
2026年度春学期　統計学　第6回　データの関係を知る（１）ー 相関関係 (2026. 5. 14)
Avatar for Akira Asano akiraasano
PRO
0
200
2026年度春学期　統計学　第14回　分布についての仮説を検証する ― 仮説検定（１） (2026. 7. 2)
Avatar for Akira Asano akiraasano
PRO
0
130

Featured

See All Featured
Context Engineering - Making Every Token Count
Avatar for Addy Osmani addyosmani
9
1k
Put a Button on it: Removing Barriers to Going Fast.
Avatar for kastner kastner
60
4.5k
How To Stay Up To Date on Web Technology
Avatar for Chris Coyier chriscoyier
790
250k
Build your cross-platform service in a week with App Engine
Avatar for Jose L jlugia
234
19k
Un-Boring Meetings
Avatar for Sebastian Deterding codingconduct
0
380
Bash Introduction
Avatar for André Augusto Costa Santos 62gerente
615
220k
Breaking role norms: Why Content Design is so much more than writing copy - Taylor Woolridge
Avatar for UX Y'all uxyall
0
360
Abbi's Birthday
Avatar for Violet Bock coloredviolet
3
9.3k
Performance Is Good for Brains [We Love Speed 2024]
Avatar for Tammy Everts tammyeverts
12
1.8k
Thoughts on Productivity
Avatar for Jon Yablonski jonyablonski
76
5.3k
How to Build an AI Search Optimization Roadmap - Criteria and Steps to Take #SEOIRL
Avatar for Aleyda Solis aleyda
1
2.1k
10 Git Anti Patterns You Should be Aware of
Avatar for Lemi Orhan Ergin lemiorhan
PRO
659
62k

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!