Fix singnal handling for different systems

signals_windows.go

@@ -0,0 +1,21 @@
+// +build windows
+
+package asynq
+
+import (
+	"os"
+	"os/signal"
+
+	"golang.org/x/sys/windows"
+)
+
+// waitForSignals waits for signals and handle them.
+// It handles SIGTERM, SIGINT.
+// SIGTERM and SIGINT will signal the process to exit.
+//
+// Note: Currently SIGTSTP is not supported for windows build.
+func (bg *Background) waitForSignals() {
+	sigs := make(chan os.Signal, 1)
+	signal.Notify(sigs, windows.SIGTERM, windows.SIGINT)
+	<-sigs
+}