Book Image

Delphi Cookbook - Third Edition

By : Daniele Spinetti, Daniele Teti
Book Image

Delphi Cookbook - Third Edition

By: Daniele Spinetti, Daniele Teti

Overview of this book

Delphi is a cross-platform integrated development environment (IDE) that supports rapid application development on different platforms, saving you the pain of wandering amid GUI widget details or having to tackle inter-platform incompatibilities. Delphi Cookbook begins with the basics of Delphi and gets you acquainted with JSON format strings, XSLT transformations, Unicode encodings, and various types of streams. You’ll then move on to more advanced topics such as developing higher-order functions and using enumerators and run-time type information (RTTI). As you make your way through the chapters, you’ll understand Delphi RTL functions, use FireMonkey in a VCL application, and cover topics such as multithreading, using aparallel programming library and deploying Delphi on a server. You’ll take a look at the new feature of WebBroker Apache modules, join the mobile revolution with FireMonkey, and learn to build data-driven mobile user interfaces using the FireDAC database access framework. This book will also show you how to integrate your apps with Internet of Things (IoT). By the end of the book, you will have become proficient in Delphi by exploring its different aspects such as building cross-platforms and mobile applications, designing server-side programs, and integrating these programs with IoT.
Table of Contents (12 chapters)

Using the Parallel Programming Library in the real world: Tasks

Since RAD Studio XE7 Delphi and C++ Builder, developers have been able to use the Parallel Programming Library (PPL). What is PPL? PPL is a part of the Delphi RTL that provides facilities for multithreading (or parallel) programming.

PPL is available for all the platforms supported by Delphi, and provides a number of advanced features for running tasks, joining tasks, and waiting on groups of tasks to process. PPL is not only a different way to create threads, but is a different way to manage threads as well. Why? Because to manage all of these features (tasks, futures, parallel for, and joining), there is a thread pool that self-tunes automatically (based on the load on the CPUs), so you do not have to care about creating or managing threads for this purpose.

The good news is that PPL is quite simple to use and doesn...