/
main.go
50 lines (41 loc) · 920 Bytes
/
main.go
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package main
import (
"fmt"
"math/rand"
"sync"
"time"
"github.com/vbauerster/mpb"
)
const (
totalBars = 32
maxBlockSize = 8
)
func main() {
var wg sync.WaitGroup
p := mpb.New()
wg.Add(totalBars)
for i := 0; i < totalBars; i++ {
name := fmt.Sprintf("Bar#%02d: ", i)
total := rand.Intn(120) + 10
bar := p.AddBar(int64(total)).
PrependName(name, len(name), 0).
PrependETA(4, mpb.DwidthSync|mpb.DextraSpace).
AppendPercentage(5, 0)
go func() {
defer wg.Done()
blockSize := rand.Intn(maxBlockSize) + 1
for i := 0; i < total; i++ {
sleep(blockSize)
bar.Incr(1)
blockSize = rand.Intn(maxBlockSize) + 1
}
}()
}
wg.Wait()
p.Stop()
// p.AddBar(1) // panic: you cannot reuse p, create new one!
fmt.Println("stop")
}
func sleep(blockSize int) {
time.Sleep(time.Duration(blockSize) * (50*time.Millisecond + time.Duration(rand.Intn(5*int(time.Millisecond)))))
}