Book Image

Mastering macOS Programming.

By : Gregory Casamento
Book Image

Mastering macOS Programming.

By: Gregory Casamento

Overview of this book

macOS continues to lead the way in desktop operating systems, with its tight integration across the Apple ecosystem of platforms and devices. With this book, you will get an in-depth knowledge of working on macOS, enabling you to unleash the full potential of the latest version using Swift 3 to build applications. This book will help you broaden your horizons by taking your programming skills to next level. The initial chapters will show you all about the environment that surrounds a developer at the start of a project. It introduces you to the new features that Swift 3 and Xcode 8 offers and also covers the common design patterns that you need to know for planning anything more than trivial projects. You will then learn the advanced Swift programming concepts, including memory management, generics, protocol orientated and functional programming and with this knowledge you will be able to tackle the next several chapters that deal with Apple’s own Cocoa frameworks. It also covers AppKit, Foundation, and Core Data in detail which is a part of the Cocoa umbrella framework. The rest of the book will cover the challenges posed by asynchronous programming, error handling, debugging, and many other areas that are an indispensable part of producing software in a professional environment. By the end of this book, you will be well acquainted with Swift, Cocoa, and AppKit, as well as a plethora of other essential tools, and you will be ready to tackle much more complex and advanced software projects.
Table of Contents (28 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Dedication
Preface
18
LLDB and the Command Line

Chapter 16. Concurrency and Asynchronous Programming

Any program that you write for Mac OS will need to share the processor's computing power with other programs.

Any program you write for Mac OS will almost certainly run on more than one processor at the same time. That is, even if only one user is using it, it will still be running on more than one processor.

And the majority of programs you will write will sometimes need to ask other programs somewhere, anywhere on the planet, for their help.

Apps, programs, tasks, and processes, call them what you will and draw the dividing lines where you wish, are very sociable entities; working together is the essence of their being.

Welcome to concurrent and asynchronous programming.

As developers, it is our responsibility to ensure that this cooperation between processes runs smoothly, efficiently, and reliably. It is the responsibility of this chapter to ensure that, after working through it, you will have a firm understanding of the concepts involved...