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
0
140

Shared, Exclusive, Mutable, Immutable

NSBudapest, May 2018
Avatar for Greg Heo

Greg Heo

May 10, 2018
Tweet

More Decks by Greg Heo

See All by Greg Heo
Concurrency From the Ground Up
Avatar for Greg Heo gregheo
0
200
The least you need to know about hashing in Swift
Avatar for Greg Heo gregheo
0
140
Shared Mutable State
Avatar for Greg Heo gregheo
0
460
Promises, Futures, and the Shape of Your Code
Avatar for Greg Heo gregheo
0
61
Getting Under Swift’s Skin
Avatar for Greg Heo gregheo
0
520
Sanitizing Threads for Fun & Profit
Avatar for Greg Heo gregheo
0
120
Sanitizing 
All* The Things
Avatar for Greg Heo gregheo
0
59
Thirteen Ways of Looking at a View Controller
Avatar for Greg Heo gregheo
0
120
Five Unbelievable Secrets of Reactive Programming the Experts Don't Want You to Know!
Avatar for Greg Heo gregheo
3
390

Other Decks in Technology

See All in Technology
Terraform にコントリビュートしていたら Azure のコストをやらかした話 / How I Messed Up Azure Costs While Contributing to Terraform
Avatar for ののし nnstt1
1
420
MCPを理解する
Avatar for Yudai Hayashi yudai00
14
9.9k
LangfuseではじめるAIアプリのLLMトレーシング
Avatar for Tadashi Shigeoka codenote
0
140
LINE 購物幕後推手
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
420
AI-in-the-Enterprise｜OpenAIが公開した「AI導入7つの教訓」——ChatGPTで変わる企業の未来とは？
Avatar for CUSTOMER CLOUD CORP. customercloud
PRO
0
160
Global Azure2025(GitHub Copilot ハンズオン)
Avatar for tomokusaba tomokusaba
2
690
ソフトウェアテスト 最初の一歩 〜テスト設計技法をワークで体験しながら学ぶ〜 #JaSSTTokyo / SoftwareTestingFirstStep
Avatar for nihonbuson nihonbuson
PRO
1
110
10分で学ぶ、RAGの仕組みと実践
Avatar for Marimo supermarimobros
0
890
地味にいろいろあった！ 2025春のAmazon Bedrockアップデートおさらい
Avatar for みのるん minorun365
PRO
2
570
MySQL Indexes and Histograms – How they really speed up your queries
Avatar for lefred lefred
0
150
Dataverseの検索列について
Avatar for MiyakeMito miyakemito
1
180
Асинхронная коммуникация в Go: от понятного к душному. Дима Некрасов, Otello, 2ГИС
Avatar for Lamoda Tech lamodatech
0
2k

Featured

See All Featured
Building Applications with DynamoDB
Avatar for Matt Wood mza
94
6.4k
Making Projects Easy
Avatar for Brett Harned brettharned
116
6.2k
Documentation Writing (for coders)
Avatar for Carmen Chung carmenintech
71
4.8k
The Success of Rails: Ensuring Growth for the Next 100 Years
Avatar for Eileen M. Uchitelle eileencodes
45
7.2k
ReactJS: Keep Simple. Everything can be a component!
Avatar for Pedro Nauck pedronauck
667
120k
The Illustrated Children's Guide to Kubernetes
Avatar for Chris Short chrisshort
48
49k
Agile that works and the tools we love
Avatar for Rasmus Luckow-Nielsen rasmusluckow
329
21k
Improving Core Web Vitals using Speculation Rules API
Avatar for Sergey Chernyshev sergeychernyshev
13
840
Raft: Consensus for Rubyists
Avatar for Patrick Van Stee vanstee
137
6.9k
Done Done
Avatar for chrislema chrislema
184
16k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
Avatar for Joe Casabona jcasabona
32
2.3k
10 Git Anti Patterns You Should be Aware of
Avatar for Lemi Orhan Ergin lemiorhan
PRO
656
60k

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! ☺