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Mastering Go – Third Edition

You're reading from   Mastering Go – Third Edition Harness the power of Go to build professional utilities and concurrent servers and services

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Product type Paperback
Published in Aug 2021
Publisher Packt
ISBN-13 9781801079310
Length 682 pages
Edition 3rd Edition
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Author (1):
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Mihalis Tsoukalos Mihalis Tsoukalos
Author Profile Icon Mihalis Tsoukalos
Mihalis Tsoukalos
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Table of Contents (17) Chapters Close

Preface 1. A Quick Introduction to Go 2. Basic Go Data Types FREE CHAPTER 3. Composite Data Types 4. Reflection and Interfaces 5. Go Packages and Functions 6. Telling a UNIX System What to Do 7. Go Concurrency 8. Building Web Services 9. Working with TCP/IP and WebSocket 10. Working with REST APIs 11. Code Testing and Profiling 12. Working with gRPC 13. Go Generics 14. Other Books You May Enjoy
15. Index
Appendix A – Go Garbage Collector

Processes, threads, and goroutines

A process is an OS representation of a running program, while a program is a binary file on disk that contains all the information necessary for creating an OS process. The binary file is written in a specific format (ELF on Linux) and contains all the instructions the CPU is going to run as well as a plethora of other useful sections. That program is loaded into memory and the instructions are executed, creating a running process. So, a process carries with it additional resources such as memory, opened file descriptions, and user data as well as other types of resources that are obtained during runtime.

A thread is a smaller and lighter entity than a process. Processes consist of one or more threads that have their own flow of control and stack. A quick and simplistic way to differentiate a thread from a process is to consider a process as the running binary file and a thread as a subset of a process.

A goroutine is the minimum Go entity...

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