Lock in $30 Savings on PRO—Offer Ends Soon! ⏳

Shared, Exclusive, Mutable, Immutable

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

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
230
The least you need to know about hashing in Swift
Avatar for Greg Heo gregheo
0
160
Shared Mutable State
Avatar for Greg Heo gregheo
0
510
Promises, Futures, and the Shape of Your Code
Avatar for Greg Heo gregheo
0
66
Getting Under Swift’s Skin
Avatar for Greg Heo gregheo
0
540
Sanitizing Threads for Fun & Profit
Avatar for Greg Heo gregheo
0
140
Sanitizing 
All* The Things
Avatar for Greg Heo gregheo
0
63
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
410

Other Decks in Technology

See All in Technology
今年のデータ・ML系アップデートと気になるアプデのご紹介
Avatar for Nayuta S. nayuts
1
330
Debugging Edge AI on Zephyr and Lessons Learned
Avatar for misoji engineer iotengineer22
0
190
コミューンのデータ分析AIエージェント「Community Sage」の紹介
Avatar for Yusuke Fukasawa fufufukakaka
0
490
Lessons from Migrating to OpenSearch: Shard Design, Log Ingestion, and UI Decisions
Avatar for SansanTech sansantech
PRO
1
130
会社紹介資料 / Sansan Company Profile
Avatar for Sansan, Inc. sansan33
PRO
11
390k
MapKitとオープンデータで実現する地図情報の拡張と可視化
Avatar for ZOZO Developers zozotech
PRO
1
140
学習データって増やせばいいんですか？
Avatar for fumihiko takahashi ftakahashi
2
330
OCI Oracle Database Services新機能アップデート(2025/09-2025/11)
Avatar for oracle4engineer oracle4engineer
PRO
1
180
Reinforcement Fine-tuning 基礎〜実践まで
Avatar for Morita ch6noota
0
180
Ruby で作る大規模イベントネットワーク構築・運用支援システム TTDB
Avatar for Taketo Takashima taketo1113
1
300
mairuでつくるクレデンシャルレス開発環境 / Credential-less development environment using Mailru
Avatar for Issei Naruta mirakui
4
440
AI駆動開発における設計思想 認知負荷を下げるフロントエンドアーキテクチャ/ 20251211 Teppei Hanai
Avatar for SHIFT EVOLVE shift_evolve
PRO
2
380

Featured

See All Featured
Rebuilding a faster, lazier Slack
Avatar for samanthasiow samanthasiow
84
9.3k
How To Stay Up To Date on Web Technology
Avatar for Chris Coyier chriscoyier
791
250k
Understanding Cognitive Biases in Performance Measurement
Avatar for Philip Tellis bluesmoon
32
2.7k
Six Lessons from altMBA
Avatar for Skipper Chong Warson skipperchong
29
4.1k
The Hidden Cost of Media on the Web [PixelPalooza 2025]
Avatar for Tammy Everts tammyeverts
1
100
Principles of Awesome APIs and How to Build Them.
Avatar for Keavy McMinn keavy
127
17k
Build The Right Thing And Hit Your Dates
Avatar for Maggie C. maggiecrowley
38
3k
Making Projects Easy
Avatar for Brett Harned brettharned
120
6.5k
Why Our Code Smells
Avatar for Brandon Keepers bkeepers
PRO
340
57k
Into the Great Unknown - MozCon
Avatar for Noah Learner thekraken
40
2.2k
10 Git Anti Patterns You Should be Aware of
Avatar for Lemi Orhan Ergin lemiorhan
PRO
659
61k
How GitHub (no longer) Works
Avatar for Zach Holman holman
316
140k

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! ☺