Add new Signal handling file

cmd/rqlited/signals.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"log"
+	"os"
+	"os/signal"
+)
+
+const (
+	sigChSize = 32
+)
+
+// HandleSignals returns a channel on which to receive the specified signals.
+func HandleSignals(sigs ...os.Signal) <-chan os.Signal {
+	ch := make(chan os.Signal, sigChSize)
+	go func() {
+		sigCh := make(chan os.Signal, sigChSize)
+		signal.Notify(sigCh, sigs...)
+		for {
+			sig := <-sigCh
+			log.Printf(`received signal "%s"`, sig.String())
+			ch <- sig
+		}
+	}()
+	return ch
+}