Book Image

Practical C Programming

By : B. M. Harwani
Book Image

Practical C Programming

By: B. M. Harwani

Overview of this book

Used in everything from microcontrollers to operating systems, C is a popular programming language among developers because of its flexibility and versatility. This book helps you get hands-on with various tasks, covering the fundamental as well as complex C programming concepts that are essential for making real-life applications. You’ll start with recipes for arrays, strings, user-defined functions, and pre-processing directives. Once you’re familiar with the basic features, you’ll gradually move on to learning pointers, file handling, concurrency, networking, and inter-process communication (IPC). The book then illustrates how to carry out searching and arrange data using different sorting techniques, before demonstrating the implementation of data structures such as stacks and queues. Later, you’ll learn interesting programming features such as using graphics for drawing and animation, and the application of general-purpose utilities. Finally, the book will take you through advanced concepts such as low-level programming, embedded software, IoT, and security in coding, as well as techniques for improving code performance. By the end of this book, you'll have a clear understanding of C programming, and have the skills you need to develop robust apps.
Table of Contents (20 chapters)

Communicating between processes using FIFO

In this recipe, we will learn how two processes communicate using a named pipe, also known as FIFO. This recipe is divided into the following two parts:

  • Demonstrating how data is written into a FIFO
  • Demonstrating how data is read from a FIFO

The functions and terms we learned in the previous recipe will also be applicable here.

Writing data into a FIFO

As the name suggests, we will learn how data is written into a FIFO in this recipe.

How to do it…

  1. Invoke the mkfifo function to create a new FIFO special file.
  2. Open the...