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 Extreme C
  • Table Of Contents Toc
  • Feedback & Rating feedback
Extreme C

Extreme C

By : Kamran Amini
4.5 (29)
close
close
Extreme C

Extreme C

4.5 (29)
By: Kamran Amini

Overview of this book

There’s a lot more to C than knowing the language syntax. The industry looks for developers with a rigorous, scientific understanding of the principles and practices. Extreme C will teach you to use C’s advanced low-level power to write effective, efficient systems. This intensive, practical guide will help you become an expert C programmer. Building on your existing C knowledge, you will master preprocessor directives, macros, conditional compilation, pointers, and much more. You will gain new insight into algorithm design, functions, and structures. You will discover how C helps you squeeze maximum performance out of critical, resource-constrained applications. C still plays a critical role in 21st-century programming, remaining the core language for precision engineering, aviations, space research, and more. This book shows how C works with Unix, how to implement OO principles in C, and fully covers multi-processing. In Extreme C, Amini encourages you to think, question, apply, and experiment for yourself. The book is essential for anybody who wants to take their C to the next level.
Table of Contents (27 chapters)
close
close
24
Other Books You May Enjoy
25
Leave a review - let other readers know what you think
26
Index

Kernel

The main purpose of the kernel ring is to manage the hardware attached to a system and expose its functionalities as system calls. The following diagram shows how a specific hardware functionality is exposed through different rings before a user application can finally use it:

Figure 10-4: Function calls and system calls made between various Unix rings in order to expose a hardware functionality

The preceding diagram shows a summary of what we have explained so far. In this section, we are going to focus on the kernel itself and see what the kernel is. A kernel is a process that, like any other processes that we know, executes a sequence of instructions. But a kernel process is fundamentally different from an ordinary process, which we know as a user process.

The following list compares a kernel process and a user process. Note that our comparison is biased to a monolithic kernel such as Linux. We will explain the different types of kernels in the next...

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.
Extreme C
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist download Download options 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