Structured Concurrency: Hierarchical Cancellation & Error Handling • James Ward • GOTO 2024

This presentation was recorded at GOTO Chicago 2024. #GOTOcon #GOTOchgo
https://gotochgo.com

James Ward - Principal Developer Advocate at AWS ‪@JamesWard‬

ORIGINAL TALK TITLE
Structured Concurrency: Managing the Hierarchical Cancellation & Error Handling

RESOURCES
https://bsky.app/profile/jamesward.com
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Links
https://homepages.cwi.nl/~storm/teach...
https://github.com/jamesward/easyracer

ABSTRACT
There are many approaches to concurrency all with different ways of handling cancellation and errors. Structured Concurrency is an approach that makes typical fan-out and fan-in use cases like races, easier to manage especially when sub-tasks need to be canceled or can produce errors.

This talk will introduce the concept of Structured Concurrency and compare different approaches (with and without Loom) in Java, Kotlin, and Scala. Whether you are new to concurrency or familiar with the typical approaches, you will learn about new ways of tackling the complexities and how they vary across languages and frameworks. [...]

TIMECODES
00:00 Intro
00:59 What is structured concurrency?
03:00 Races
06:05 Easy racer
07:27 Approaches to structured concurrency
09:34 Scenario 1
10:24 Demo
18:01 Scenario 1 continued
27:13 Scenario 2
27:34 Race shutdown on success
28:50 Race shutdown on error
29:20 Scenario 2 continued
34:20 Scenario 3
35:55 Scenario 4
40:22 Scenario 5
41:58 Scenario 6
44:44 Demo
45:50 Scenario 7
48:03 Wrap-up
50:05 Q&A
53:42 Outro

Download slides and read the full abstract here:
https://gotochgo.com/2024/sessions/3339

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Markus Eisele & Natale Vinto • Modernizing Enterprise Java • https://amzn.to/3EsEtZ3
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Thomas Vitale • Cloud Native Spring in Action (available soon) • https://amzn.to/3kLu1ns
Venkat Subramaniam • Programming Kotlin • https://amzn.to/2MIC8D1

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