Abstract away signal handling.

signal_unix.go

@@ -0,0 +1,29 @@
+// Copyright (c) 2011 The Grumble Authors
+// The use of this source code is goverened by a BSD-style
+// license that can be found in the LICENSE-file.
+
+package main
+
+import (
+	"fmt"
+	"log"
+	"os/signal"
+	"path/filepath"
+)
+
+func SignalHandler() {
+	for {
+		sig := <-signal.Incoming
+		if sig != signal.SIGINT && sig != signal.SIGTERM {
+			continue
+		}
+		for sid, s := range servers {
+			err := s.FreezeToFile(filepath.Join(*datadir, fmt.Sprintf("%v", sid)))
+			if err != nil {
+				log.Printf("Unable to freeze server %v: %s", sid, err.String())
+				continue
+			}
+			log.Printf("Server %v frozen", sid)
+		}
+	}
+}