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Mastering Go

Mastering Go - Third Edition

By : Mihalis Tsoukalos
4.6 (16)
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Mastering Go

Mastering Go

4.6 (16)
By: Mihalis Tsoukalos

Overview of this book

Mastering Go is the essential guide to putting Go to work on real production systems. This freshly updated third edition includes topics like creating RESTful servers and clients, understanding Go generics, and developing gRPC servers and clients. Mastering Go was written for programmers who want to explore the capabilities of Go in practice. As you work your way through the chapters, you’ll gain confidence and a deep understanding of advanced Go concepts, including concurrency and the operation of the Go Garbage Collector, using Go with Docker, writing powerful command-line utilities, working with JavaScript Object Notation (JSON) data, and interacting with databases. You’ll also improve your understanding of Go internals to optimize Go code and use data types and data structures in new and unexpected ways. This essential Go programming book will also take you through the nuances and idioms of Go with exercises and resources to fully embed your newly acquired knowledge. With the help of Mastering Go, you’ll become an expert Go programmer by building Go systems and implementing advanced Go techniques in your projects.
Table of Contents (17 chapters)
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14
Other Books You May Enjoy
15
Index

Go Concurrency

The key component of the Go concurrency model is the goroutine, which is the minimum executable entity in Go. Everything in Go is executed as a goroutine, either transparently or consciously. Each executable Go program has at least one goroutine, which is used for running the main() function of the main package. Each goroutine is executed on a single OS thread according to the instructions of the Go scheduler, which is responsible for the execution of goroutines. The OS scheduler does not dictate how many threads the Go runtime is going to create because the Go runtime will spawn enough threads to ensure that GOMAXPROCS threads are available to run Go code.

However, goroutines cannot directly communicate with each other. Data sharing in Go is implemented using either channels or shared memory. Channels act as the glue that connects multiple goroutines. Remember that although goroutines can process data and execute commands, they cannot communicate directly...

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Mastering Go
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