Mutex should be pointer, comments added.

ripv2/ripv2.go

@@ -14,11 +14,14 @@ import (
 )
 
 func New() Message {
-	var message Message
-	message.RIP = make([]RIP, 25)
-	return message
+	return Message{
+		RIP: make([]RIP, 25),
+	}
 }
 
+/* Parse the raw data packet
+ * Store the serialised data in the Message slice
+ */
 func (m *Message) MParse(b *[]byte, n int) error {
 	if n == 0 {
 		return errors.New("can't parse empty data")
@@ -59,6 +62,7 @@ func (m *Message) MParse(b *[]byte, n int) error {
 	return nil
 }
 
+/* Listen for network packets */
 func (m *Message) Run(c *config.Config, callback func(*Routes)) error {
 	iface := net.Interface{
 		Name:  c.MulticastInterface,

ripv2/routes.go

@@ -10,7 +10,7 @@ import (
 
 type Routes struct {
 	Routes map[string]Route
-	sync.Mutex
+	*sync.Mutex
 }
 
 type Route struct {
@@ -23,9 +23,10 @@ type Route struct {
 }
 
 func Init() *Routes {
-	var routes Routes
-	routes.Routes = make(map[string]Route, 25)
-	return &routes
+	return &Routes{
+		Routes: make(map[string]Route, 25),
+		Mutex:  new(sync.Mutex),
+	}
 }
 
 func (r *Routes) append(route Route) {