Book Image

Hands-On System Programming with Go

By : Alex Guerrieri
Book Image

Hands-On System Programming with Go

By: Alex Guerrieri

Overview of this book

System software and applications were largely created using low-level languages such as C or C++. Go is a modern language that combines simplicity, concurrency, and performance, making it a good alternative for building system applications for Linux and macOS. This Go book introduces Unix and systems programming to help you understand the components the OS has to offer, ranging from the kernel API to the filesystem. You'll then familiarize yourself with Go and its specifications. You'll also learn how to optimize input and output operations with files and streams of data, which are useful tools in building pseudo-terminal applications. You'll gain insights into how processes communicate with each other, and learn about processes and daemon control using signals, pipes, and exit codes. This book will also enable you to understand how to use network communication using various protocols, including TCP and HTTP. As you advance, you'll focus on Go's best feature - concurrency, which will help you handle communication with channels and goroutines, other concurrency tools to synchronize shared resources, and the context package to write elegant applications. By the end of this book, you will have learned how to build concurrent system applications using Go
Table of Contents (24 chapters)
Free Chapter
Section 1: An Introduction to System Programming and Go
Section 2: Advanced File I/O Operations
Section 3: Understanding Process Communication
Section 4: Deep Dive into Concurrency
Section 5: A Guide to Using Reflection and CGO

Chapter 9

  1. What's the advantage of using communication models?
    Communication models allow you to abstract the type of data handled with your model, making the communications between different endpoints easy.
  2. What's the difference between a TCP and a UDP connection?
    TCP is connection oriented—this makes it reliable because it verifies that the destination receives data correctly before sending new data. A UDP connection sends data continuously, without acknowledging that the destination received the package. This can cause package loss, but it makes the connection faster and does not accumulate latency.
  3. Who closes the request body when sending requests?
    Closing the request when making an HTTP call is the responsibility of the application.
  4. Who closes the body when receiving requests in the server?
    The request body is closed automatically when the connection...