test/atomic/main.go

package main

import (
	"fmt"
	"sync/atomic"
	"time"
)

func main() {
	data := []int32{}
	tcount := int32(1000000000)
	counta := int32(0)
	countb := int32(0)
	countc := int32(0)
	countd := int32(0)
	go func() {
		for i := int32(0); i < tcount; i++ {
			go func() {
				go func() {
					//	time.Sleep(10 * time.Microsecond)
					data = append(data, atomic.AddInt32(&counta, 1))
				}()
				go func() {
					//	time.Sleep(10 * time.Microsecond)
					data = append(data, atomic.AddInt32(&countb, 1))
				}()
				go func() {
					//	time.Sleep(10 * time.Microsecond)
					data = append(data, atomic.AddInt32(&countc, 1))
				}()
				go func() {
					//	time.Sleep(10 * time.Microsecond)
					data = append(data, atomic.AddInt32(&countd, 1))
				}()
			}()
			time.Sleep(1 * time.Microsecond)
		}
	}()
	to := time.Now()
	for counta < tcount && countb < tcount && countc < tcount && countd < tcount {
		if time.Since(to) > 1000*time.Millisecond {
			println("......")
			go fmt.Println(time.Now().String()[:23], "      ", counta, "  ", countb, "  ", countc, "  ", countd)
			to = time.Now()
		}
		time.Sleep(1 * time.Microsecond)
	}
	fmt.Println(time.Now().String()[:23], "      ", counta, "  ", countb, "  ", countc, "  ", countd)
}