go get github.com/wujie1993/go-daemon
package main
import (
"context"
"log"
"time"
"github.com/wujie1993/go-daemon"
)
var (
TermTimeA = 3
TermTimeB = 4
)
func routineA(ctx context.Context) {
defer log.Println("routine A stopped")
for {
select {
case <-ctx.Done():
log.Printf("routine A will stop in %d seconds\n", TermTimeA)
time.Sleep(time.Second * time.Duration(TermTimeA))
return
default:
log.Println("routine A loop")
}
time.Sleep(time.Second)
}
}
func routineB(ctx context.Context) {
defer log.Println("routine B stopped")
for {
select {
case <-ctx.Done():
log.Printf("routine B will stop in %d seconds\n", TermTimeB)
time.Sleep(time.Second * time.Duration(TermTimeB))
return
default:
log.Println("routine B loop")
}
time.Sleep(time.Second)
}
}
func main() {
d := daemon.NewDaemon(daemon.DaemonConfig{
Ctx: context.Background(),
GracefulExitWaitSeconds: 5,
})
d.Run("routine A", routineA)
d.Run("routine B", routineB)
d.WaitSignal()
}
set TermTimeA = 3 and TermTimeB = 7
send terminate signal once when running process
outputs
2023/09/14 15:01:55 routine A loop
2023/09/14 15:01:55 routine B loop
^C2023/09/14 15:01:56 [warn] Got signal: interrupt.
2023/09/14 15:01:56 [warn] Waiting 5 seconds for graceful terminate. You can pass interrupt signal again to forced exit daemon.
2023/09/14 15:01:56 routine A will stop in 3 seconds
2023/09/14 15:01:56 routine B will stop in 7 seconds
2023/09/14 15:01:59 routine A stopped
2023/09/14 15:02:01 [error] Timeout waiting for graceful exit, perform forced exit.
shell returned 1
set TermTimeA = 3 and TermTimeB = 7
send terminate signal twice when running process
outputs
2023/09/14 15:03:02 routine A loop
2023/09/14 15:03:02 routine B loop
^C2023/09/14 15:03:03 [warn] Got signal: interrupt.
2023/09/14 15:03:03 [warn] Waiting 5 seconds for graceful terminate. You can pass interrupt signal again to forced exit daemon.
2023/09/14 15:03:03 routine A will stop in 3 seconds
2023/09/14 15:03:03 routine B will stop in 7 seconds
^C2023/09/14 15:03:04 [warn] Manually forced exit.
shell returned 1