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

Shared, Exclusive, Mutable, Immutable

Avatar for Greg Heo Greg Heo
May 10, 2018
Technology
150
0

Shared, Exclusive, Mutable, Immutable

NSBudapest, May 2018

Avatar for Greg Heo

Greg Heo

May 10, 2018

More Decks by Greg Heo

See All by Greg Heo
Concurrency From the Ground Up
Avatar for Greg Heo gregheo
0
240
The least you need to know about hashing in Swift
Avatar for Greg Heo gregheo
0
180
Shared Mutable State
Avatar for Greg Heo gregheo
0
530
Promises, Futures, and the Shape of Your Code
Avatar for Greg Heo gregheo
0
68
Getting Under Swift’s Skin
Avatar for Greg Heo gregheo
0
550
Sanitizing Threads for Fun & Profit
Avatar for Greg Heo gregheo
0
160
Sanitizing 
All* The Things
Avatar for Greg Heo gregheo
0
65
Thirteen Ways of Looking at a View Controller
Avatar for Greg Heo gregheo
0
130
Five Unbelievable Secrets of Reactive Programming the Experts Don't Want You to Know!
Avatar for Greg Heo gregheo
3
420

Other Decks in Technology

See All in Technology
Hooks, Filters & Now Context: Why MCPs Are the “Hooks” of the AI Era
Avatar for Miriam Schwab miriamschwab
0
120
デシリアライゼーションを理解する / Inside Deserialization
Avatar for HASEGAWA Tomoki tomzoh
0
190
Discordでリモートポケカしてたら、なぜかDOを25分間動かせるようになった話
Avatar for Kaito Udagawa umireon
0
110
2026-04-02 IBM Bobオンボーディング入門
Avatar for YutaNonaka yutanonaka
0
260
I ran an automated simulation of fake news spread using OpenClaw.
Avatar for otsuka zzzzico
1
1k
「決め方」の渡し方 / How to hand over the "decision-making process"
Avatar for Pauli pauli
8
1.3k
制約を設計する - 非決定性との境界線 / Designing constraints
Avatar for soudai sone soudai
PRO
6
2.4k
20260410 - CNTUG meetup #72 - DiskImage Builder 介紹：以 Kubespray CI 打造 RockyLinux 10 Cloud Image 為例
Avatar for ChengHao Yang tico88612
0
110
TanStack Start エコシステムの現在地 / TanStack Start Ecosystem 2026
Avatar for Takahiro Ikeuchi iktakahiro
1
360
AIペネトレーションテスト・ セキュリティ検証「AgenticSec」ご紹介資料
Avatar for Sho Nakatani laysakura
0
1.6k
今年60歳のおっさんCBになる
Avatar for Hiroo Katoh kentapapa
1
330
シン・リスコフの置換原則 〜現代風に考えるSOLIDの原則〜
Avatar for Watanabe Jin jinwatanabe
0
160

Featured

See All Featured
Tips & Tricks on How to Get Your First Job In Tech
Avatar for Honza Javorek honzajavorek
1
480
技術選定の審美眼（2025年版） / Understanding the Spiral of Technologies 2025 edition
Avatar for Takuto Wada twada
PRO
118
110k
How to Talk to Developers About Accessibility
Avatar for Jason CranfordTeague jct
2
170
Paper Plane (Part 1)
Avatar for Katie Cordina Lindsey katiecoart
PRO
0
6.4k
Facilitating Awesome Meetings
Avatar for Lara Hogan lara
57
6.8k
Taking LLMs out of the black box: A practical guide to human-in-the-loop distillation
Avatar for Ines Montani inesmontani
PRO
3
2.1k
Fight the Zombie Pattern Library - RWD Summit 2016
Avatar for Marcelo Somers marcelosomers
234
17k
Bridging the Design Gap: How Collaborative Modelling removes blockers to flow between stakeholders and teams @FastFlow conf
Avatar for Kenny Baas-Schwegler baasie
0
500
Optimising Largest Contentful Paint
Avatar for Harry Roberts csswizardry
37
3.6k
世界の人気アプリ100個を分析して見えたペイウォール設計の心得
Avatar for Akihiro Kokubo akihiro_kokubo
PRO
68
38k
What the history of the web can teach us about the future of AI
Avatar for Ines Montani inesmontani
PRO
1
510
Fantastic passwords and where to find them - at NoRuKo
Avatar for Phil Nash philnash
52
3.6k

Transcript

  1. @gregheo ! NSBudapest, May 2018 Shared
 Exclusive
 Mutable
 Immutable

  2. @gregheo ! NSBudapest, May 2018 Data "

  3. @gregheo ! NSBudapest, May 2018 Code Example #

  4. @gregheo ! NSBudapest, May 2018 Exclusive Shared Immutable Mutable

  5. @gregheo ! NSBudapest, May 2018 Exclusive Shared Immutable Mutable

  6. @gregheo ! NSBudapest, May 2018 Exclusive Shared Immutable private let

    Screen size / scale Mutable private var
 private queue $

  7. @gregheo ! NSBudapest, May 2018 Fewer entry points

  8. @gregheo ! NSBudapest, May 2018 Private queues

  9. @gregheo ! NSBudapest, May 2018 Queue Callback

  10. @gregheo ! NSBudapest, May 2018 
 // call from anywhere!


    public func something() {
 privateQueue.sync { … } }


  11. @gregheo ! NSBudapest, May 2018 
 // always call on

    the main queue!
 public func something() 


  12. @gregheo ! NSBudapest, May 2018 
 // always call on

    the main queue!
 public func something() {
 dispatchPrecondition(condition: .onQueue(.main))
 }


  13. @gregheo ! NSBudapest, May 2018 Make it difficult
 to get

    wrong

  14. @gregheo ! NSBudapest, May 2018 köszönöm! ☺