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Go Systems Programming

You're reading from   Go Systems Programming Master Linux and Unix system level programming with Go

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Product type Paperback
Published in Sep 2017
Publisher Packt
ISBN-13 9781787125643
Length 466 pages
Edition 1st 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 (13) Chapters Close

Preface 1. Getting Started with Go and Unix Systems Programming FREE CHAPTER 2. Writing Programs in Go 3. Advanced Go Features 4. Go Packages, Algorithms, and Data Structures 5. Files and Directories 6. File Input and Output 7. Working with System Files 8. Processes and Signals 9. Goroutines - Basic Features 10. Goroutines - Advanced Features 11. Writing Web Applications in Go 12. Network Programming

Shared memory

Shared memory is the traditional way that threads use for communicating with each other. Go comes with built-in synchronization features that allow a single goroutine to own a shared piece of data. This means that other goroutines must send messages to this single goroutine that owns the shared data, which prevents the corruption of the data! Such a goroutine is called a monitor goroutine. In Go terminology, this is sharing by communicating instead of communicating by sharing.

This technique will be illustrated in the sharedMem.go program, which will be presented in five parts. The first part of sharedMem.go has the following Go code:

package main 
 
import ( 
   "fmt" 
   "math/rand" 
   "sync" 
   "time" 
) 

The second part is the following:

var readValue = make(chan int) 
var writeValue = make(chan int) 
 
func SetValue...
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