Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Delphi Cookbook
  • Table Of Contents Toc
  • Feedback & Rating feedback
Delphi Cookbook

Delphi Cookbook - Second Edition

By : Daniele Teti
4.7 (10)
close
close
Delphi Cookbook

Delphi Cookbook

4.7 (10)
By: Daniele Teti

Overview of this book

Delphi is a cross-platform Integrated Development Environment (IDE) that supports rapid application development for Microsoft Windows, Apple Mac OS X, Google Android, and Apple iOS. It helps you to concentrate on the real business and save yourself the pain of wandering amid GUI widget details, or having to tackle inter-platform incompatibilities. It also has a wide range of drag-and-drop controls, helping you code your business logic into your business model, and it compiles natively for desktop and mobile platforms. This book will teach you how to design and develop applications, deploy them on the cloud platform, and distribute them within an organization via Google Play and other similar platforms. You will begin with the basics of Delphi and get acquainted with JSON format strings, XSLT transformations, unicode encodings and various types of streams. We then move on to more advanced topics such as developing higher-order functions and using enumerators and RTTI. You will get an understanding of how Delphi RTL functions and how to use FireMonkey in a VCL application. We will then cover topics such as multithreading, using the parallel programming library and putting Delphi on a server. We will also take a look at the new feature of WebBroker Apache modules and then ride the mobile revolution with FireMonkey. By the end of the book, you will be able to develop and deploy cross-platform applications using Delphi .
Table of Contents (10 chapters)
close
close
9
Index

Synchronizing shared resources with TMonitor


TMonitor is a record used to synchronize threads. Just to be clear, we are talking about System.TMonitor, not Vcl.Forms.TMonitor.

Since Delphi 2009, the TObject instance size has been doubled to make room for an additional 4 bytes. What are these 4 bytes for? They provide TMonitor support!

Now, every TObject descendant can be used as a lock. The type that allows this is the System.TMonitor record, which implements a generic monitor synchronization structure.

Getting ready

In this recipe, you'll face one of the classic multithreading problems—concurrent access to a shared file. Specifically, you'll have a lot of threads writing some information on a file—the same file—and all the threads have to be synchronized for this. Otherwise, the file will not be accessible due to locking, which will cause exceptions in your program code. This problem can be solved in a lot of ways, but TMonitor offers the simplest solution. Let's start.

How to do it…

Follow these...

Visually different images
CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
Delphi Cookbook
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon