IsaacXen

WWDC                                      2007  2008  2009
2010 2011 2012 2013 2014 2015 

tclementdev

libdispatch efficiency tips

The libdispatch is one of the most misused API due to the way it was presented to us when it was introduced and for many years after that, and due to the confusing documentation and API. This page is a compilation of important things to know if you're going to use this library. Many references are available at the end of this document pointing to comments from Apple's very own libdispatch maintainer (Pierre Habouzit).

My take-aways are:

• You should create very few, long-lived, well-defined queues. These queues should be seen as execution contexts in your program (gui, background work, ...) that benefit from executing in parallel. An important thing to note is that if these queues are all active at once, you will get as many threads running. In most apps, you probably do not need to create more than 3 or 4 queues.

• Go serial first, and as you find performance bottle necks, measure why, and if concurrency helps, apply with care, always validating under system pressure. Reuse

lukaskubanek

/// MIT License
///
/// Copyright (c) 2021 Lukas Kubanek, Structured Path GmbH
///
/// Permission is hereby granted, free of charge, to any person obtaining a copy
/// of this software and associated documentation files (the "Software"), to deal
/// in the Software without restriction, including without limitation the rights
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:

caseyohara

# A list of possible usernames to reserve to avoid
# vanity URL collision with resource paths

# It is a merged list of the recommendations from this Quora discussion:
# http://www.quora.com/How-do-sites-prevent-vanity-URLs-from-colliding-with-future-features

# Country TLDs found here:
# http://en.wikipedia.org/wiki/List_of_Internet_top-level_domains#Country_code_top-level_domains

# Languages found here:

sporkus

Exposing zfs snapshot to windows previous version using samba vfs_shadow_copy2

This was much trickier than I had originally anticipated and have spent a few hours testing.

The config from samba wiki absolutely works, but it wasn't ranked higher in search engine and it's not general enough. https://github.com/zfsonlinux/zfs-auto-snapshot/wiki/Samba

Tested on ubuntu 22.04LTS, samba 4.15.9 and windows 11.

TLDR

fzwo

How to download and view legacy documentation from Apple (no need to sign in to your dev account)

1. Download the docset index XML.
2. Find the docset you want (there are some with URL https://apple.com/none.dmg; ignore them - you will find them again further down the file with a working URL).
3. Download the dmg. It's probably around a gigabyte or so.
4. "Install" the .pkg file somewhere on your disk. If you don't trust the installer, do it manually:
   1. Find the largest file, named Payload, and extract it using The Unarchiver.
   2. This creates a new, even larger file, probably named Payload-1.
   3. Extract Payload-1 using The Unarchiver.
5. After many minutes of extracting, we have our .docset file.

rmondello

Exporting (iCloud) Keychain and Safari credentials to a CSV file

Update (October 2021)

Exporting password + one-time code data from iCloud Keychain is now officially supported in macOS Monterey and Safari 15 (for Monterey, Big Sur, and Catalina). You can access it in the Password Manager’s “gear” icon (System Preferences > Passwords on Monterey, and Safari > Passwords everywhere else), or via the File > Export > Passwords... menu item). You shouldn't need to hack up your own exporter anymore.

Original, Obsolete Content (2014)

After my dad died, I wanted to be able to have access any of his online accounts going forward. My dad was a Safari user and used iCloud Keychain to sync his credentials across his devices. I don’t want to have to keep an OS X user account around just to access his accounts, so I wanted to export his credentials to a portable file.

CrystDragon

import UIKit

class MyTextLabel: UIView {
  
  var textLayer = CATextLayer()
  var textStorage: String = "" {
    didSet {
      textLayer.string = textStorage
    }
  }

nathan-osman

# A simple CMake script for building the application.
cmake_minimum_required(VERSION 2.8)
project(create-x509)

# Our only dependency is OpenSSL
find_package(OpenSSL REQUIRED)

include_directories(${OPENSSL_INCLUDE_DIR})

add_executable(create-x509 create-x509.cpp)

zetachang

• To add Settings.bundle in Xcode. Command N and in Resource, choose Settings Bundle .
• Open Root.plist in source code, paste the code below to replace it,

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>PreferenceSpecifiers</key>