Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Go Systems Programming

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

Arrow left icon
Product type Paperback
Published in Sep 2017
Publisher Packt
ISBN-13 9781787125643
Length 466 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Mihalis Tsoukalos Mihalis Tsoukalos
Author Profile Icon Mihalis Tsoukalos
Mihalis Tsoukalos
Arrow right icon
View More author details
Toc

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

The dWC.go utility revisited

In this section, we will change the implementation of the dWC.go utility developed in the previous chapter.

The first version of the program will use a buffered channel whereas the second version of the program will use shared memory for keeping the counts for each file you process.

Using a buffered channel

The name of this implementation will be WCbuffered.go and will be presented in five parts.

The first part of the utility is the following:

package main 
 
import ( 
   "bufio" 
   "fmt" 
   "io" 
   "os" 
   "path/filepath" 
   "regexp" 
) 
 
type File struct { 
   Filename   string 
   Lines      int 
   Words      int 
   Characters...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime