// Fatalf formats a message to standard error and exits the program.
// The message is also printed to standard output if standard error
// is redirected to a different file.
func Fatalf(format string, args ...interface{}) {
w := io.MultiWriter(os.Stdout, os.Stderr)
outf, _ := os.Stdout.Stat()
errf, _ := os.Stderr.Stat()
if outf != nil && errf != nil && os.SameFile(outf, errf) {
w = os.Stderr
}
fmt.Fprintf(w, "Fatal: "+format+"\n", args...)
logger.Flush()
os.Exit(1)
}
func StartNode(stack *node.Node) {
if err := stack.Start(); err != nil {
Fatalf("Error starting protocol stack: %v", err)
}
go func() {
sigc := make(chan os.Signal, 1)
signal.Notify(sigc, os.Interrupt)
defer signal.Stop(sigc)
<-sigc
glog.V(logger.Info).Infoln("Got interrupt, shutting down...")
go stack.Stop()
logger.Flush()
for i := 10; i > 0; i-- {
<-sigc
if i > 1 {
glog.V(logger.Info).Infoln("Already shutting down, please be patient.")
glog.V(logger.Info).Infoln("Interrupt", i-1, "more times to induce panic.")
}
}
glog.V(logger.Error).Infof("Force quitting: this might not end so well.")
panic("boom")
}()
}