mirror of
https://github.com/stefanprodan/podinfo.git
synced 2026-08-19 20:26:38 +00:00
28 lines
615 B
Go
28 lines
615 B
Go
package signals
|
|
|
|
import (
|
|
"os"
|
|
"os/signal"
|
|
)
|
|
|
|
var onlyOneSignalHandler = make(chan struct{})
|
|
|
|
// SetupSignalHandler registered for SIGTERM and SIGINT. A stop channel is returned
|
|
// which is closed on one of these signals. If a second signal is caught, the program
|
|
// is terminated with exit code 1.
|
|
func SetupSignalHandler() (stopCh <-chan struct{}) {
|
|
close(onlyOneSignalHandler) // panics when called twice
|
|
|
|
stop := make(chan struct{})
|
|
c := make(chan os.Signal, 2)
|
|
signal.Notify(c, shutdownSignals...)
|
|
go func() {
|
|
<-c
|
|
close(stop)
|
|
<-c
|
|
os.Exit(1) // second signal. Exit directly.
|
|
}()
|
|
|
|
return stop
|
|
}
|