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Mastering Go

You're reading from   Mastering Go Leverage Go's expertise for advanced utilities, empowering you to develop professional software

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Product type Paperback
Published in Mar 2024
Publisher Packt
ISBN-13 9781805127147
Length 736 pages
Edition 4th Edition
Languages
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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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Toc

Table of Contents (19) Chapters Close

Preface 1. A Quick Introduction to Go 2. Basic Go Data Types FREE CHAPTER 3. Composite Data Types 4. Go Generics 5. Reflection and Interfaces 6. Go Packages and Functions 7. Telling a UNIX System What to Do 8. Go Concurrency 9. Building Web Services 10. Working with TCP/IP and WebSocket 11. Working with REST APIs 12. Code Testing and Profiling 13. Fuzz Testing and Observability 14. Efficiency and Performance 15. Changes in Recent Go Versions 16. Other Books You May Enjoy
17. Index
Appendix: The Go Garbage Collector

Developing concurrent TCP servers

This section teaches you a pattern for developing concurrent TCP servers, which are servers that use separate goroutines to serve their clients following a successful Accept() call. Therefore, such servers can serve multiple TCP clients at the same time. This is how real-world production servers and services are implemented.

The code of concTCP.go is as follows:

package main
import (
    "bufio"
    "fmt"
    "net"
    "os"
    "strconv"
    "strings"
)
var count = 0
func handleConnection(c net.Conn, myCount int) {
    fmt.Print(".")

The previous statement is not required—it just informs us that a new client has been connected.

    netData, err := bufio.NewReader(c).ReadString('\n')
    if err != nil {
        fmt.Println(err)
        return
    }
    for {
     
        temp := strings.TrimSpace(string(netData))
        if temp == "STOP&quot...
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