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golang pool

Restu Wahyu Saputra answered on March 2, 2024 Popularity 3/10 Helpfulness 1/10

answer golang pool

golang pool

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package main

import (
	"fmt"
	"sync"
	"time"
)

type User struct {
	Name         string `json:"name"`
	Age          int    `json:"age"`
	DateOfBirth  string `json:"dateOfBirt"`
	PlaceOfBirth string `json:"placeOfBirt"`
}

func main() {
	var (
		loopCount      int   = 10000000
		maxOfGorutines int64 = 1000
		countData int
		wg        *sync.WaitGroup = new(sync.WaitGroup)
		mutex     *sync.RWMutex   = new(sync.RWMutex)
		userChan    chan User = make(chan User, maxOfGorutines)
		releaseChan chan bool = make(chan bool, maxOfGorutines)
		poolChan    chan bool = make(chan bool, maxOfGorutines)
		users       []User    = []User{}
	)

	start := time.Now()
	fmt.Printf("Start time: %s", time.Since(start))

	go func() {
		for i := 0; i < loopCount; i++ {
			poolChan <- true
			wg.Add(1)

			go func() {
				defer func() {
					<-poolChan
					wg.Done()
				}()

				user := User{Name: "Jamal Cavalera", Age: 23, DateOfBirth: "17 Agustus 2000", PlaceOfBirth: "Jakarta"}

				mutex.Lock()
				defer mutex.Unlock()

				countData++

				if countData == loopCount {
					releaseChan <- true
				}

				userChan <- user
			}()
		}

		wg.Wait()
		close(userChan)
	}()

	for user := range userChan {
		users = append(users, user)
	}

	<-releaseChan

	fmt.Printf("Total User: %d", len(users))
	fmt.Printf("\n")
	fmt.Printf("Finish Time: %s", time.Since(start))
}

Popularity 3/10 Helpfulness 1/10 Language go

Source: Grepper

Tags: go pool

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Contributed on Mar 02 2024

Restu Wahyu Saputra

0 Answers Avg Quality 2/10

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