lolgear

/*
For example, you use Core Data sqlite.
It is necessary, because sqlite database stores data in single file.
Whole database is single file.

Now you have two options.
1. Delete all data from all tables
2. Delete database sqlite file

Second option is clean but complex.

basememara

import Foundation
import PlaygroundSupport

/// A thread-safe array.
public class SynchronizedArray<Element> {
    private let queue = DispatchQueue(label: "io.zamzam.ZamzamKit.SynchronizedArray", attributes: .concurrent)
    private var array = [Element]()
    
    public init() { }
    

Sorix

//  Created by Vasily Ulianov on 09.02.17, updated in 2019.
//  License: MIT

import Foundation

/// Subclass of `Operation` that adds support of asynchronous operations.
/// 1. Call `super.main()` when override `main` method.
/// 2. When operation is finished or cancelled set `state = .finished` or `finish()`
open class AsynchronousOperation: Operation {
    public override var isAsynchronous: Bool {

sharplet

import Dispatch

/// Wraps some `Base` type so that all method calls become
/// "message sends", e.g., `async { $0.foo() }` or `sync { $0.bar() }`.
public final class Actor<Base> {
  private var instance: Base
  private let queue: DispatchQueue

  public init(_ instance: Base, target: DispatchQueue? = nil) {
    self.instance = instance

modocache

Compilation performance

This document describes a systematic method for detection, isolation, correction and prevention of regression, on matters of compiler performance. The method focuses on the creation of small end-to-end scaling tests that characterize, and stand in for, larger codebases on which the compiler is seen to perform poorly. These scaling tests have a number of advantages over "full sized" performance-testing codebases:

dougdiego

func migrateUserDefaultsToAppGroups() {
	
	// User Defaults - Old
	let userDefaults = NSUserDefaults.standardUserDefaults()
	
	// App Groups Default - New
	let groupDefaults = NSUserDefaults(suiteName: "group.myGroup")
	
	// Key to track if we migrated
	let didMigrateToAppGroups = "DidMigrateToAppGroups"

kylef

#!/usr/bin/env bash
# Automatically installs swiftenv and run's swiftenv install.
# This script was designed for usage in CI systems.

git clone --depth 1 https://github.com/kylef/swiftenv.git ~/.swiftenv
export SWIFTENV_ROOT="$HOME/.swiftenv"
export PATH="$SWIFTENV_ROOT/bin:$SWIFTENV_ROOT/shims:$PATH"

if [ -f ".swift-version" ] || [ -n "$SWIFT_VERSION" ]; then
  swiftenv install -s

davideicardi

# Create a container from the mongo image, 
#  run is as a daemon (-d), expose the port 27017 (-p),
#  set it to auto start (--restart)
#  and with mongo authentication (--auth)
# Image used is https://hub.docker.com/_/mongo/
docker pull mongo
docker run --name YOURCONTAINERNAME --restart=always -d -p 27017:27017 mongo mongod --auth

# Using the mongo "localhost exception" (https://docs.mongodb.org/v3.0/core/security-users/#localhost-exception) 
# add a root user

NachoSoto

//
//  Signal+Extensions.swift
//  Khan Academy
//
//  Created by Nacho Soto on 10/1/15.
//  Copyright © 2015 Khan Academy. All rights reserved.
//

import ReactiveCocoa

oc2pcoj

I have tried a lot of solutions for IP-camera streams.

Old solutions

1. Vitamio.https://github.com/yixia/Vitamio-iOS
   Result: random crashes and not working cameras

2. https://github.com/kolyvan/kxmovie
   Result: compile time error. I haven't successfully integrated it to my project.

3. GStreamer. https://github.com/sdroege/gst-player