forked from nocalhost/nocalhost
/
spinner_ext.go
73 lines (61 loc) · 1.1 KB
/
spinner_ext.go
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package utils
import (
"context"
"sync"
"time"
)
type Printer struct {
ctx context.Context
statusNotifyChan chan string
sameContentBackOffSecond int
once sync.Once
printer func(string)
}
func NewPrinter(printerFunc func(string)) *Printer {
pr := &Printer{
context.TODO(),
make(chan string, 10),
60,
sync.Once{},
printerFunc,
}
pr.once.Do(
func() {
go func() {
someContentRecorder := make(map[string]int64, 0)
running := true
for {
select {
case <-pr.ctx.Done():
running = false
case c := <-pr.statusNotifyChan:
if nano, ok := someContentRecorder[c]; !ok ||
nano < time.Now().UnixNano() {
pr.printer(c)
someContentRecorder[c] = time.
Now().
Add(time.Second * time.Duration(pr.sameContentBackOffSecond)).
UnixNano()
}
}
if !running {
break
}
}
}()
},
)
return pr
}
func (se *Printer) ChangeContent(content string) {
if se == nil {
return
}
select {
case se.statusNotifyChan <- content:
default:
}
}
func (se *Printer) Done() {
se.ctx.Done()
}