原文链接：https://gist.github.com/lattner/31ed37682ef1576b16bca1432ea9f782
作者: Chris Lattner
yxztj
/ TaskConcurrencyManifesto.md
Last active
November 14, 2024 13:55
— forked from lattner/TaskConcurrencyManifesto.md
Swift Concurrency Manifesto 中文翻译
yxztj
/ deadlock.swift
Last active
March 22, 2019 08:38
concurrent execution with nested write lock would cause deadlock
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| import UIKit | |
| private var imp = pthread_rwlock_t() | |
| func wlock(_ time: Int) { | |
| pthread_rwlock_wrlock(&imp) | |
| print("[\(time)]wlock") | |
| } | |
| func rlock(_ time: Int) { |
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| import UIKit | |
| import PlaygroundSupport | |
| let paragraph = NSMutableParagraphStyle() | |
| paragraph.lineSpacing = 20 | |
| // the issue won't report with PingFangSC-Regular font | |
| //let font = UIFont(name: "PingFangSC-Regular", size: 18)! | |
| // setting to ".SFUIText" would lead to reproductive | |
| let font = UIFont(name: ".SFUIText", size: 18)! |