Router routing table management. Table route hashes. Status codes changed.

We now manage routing table actions using dedicated functions run on
either registry or services in the registry.

Routing table now uses Route.Hash() instead of maintaining its own hash
struct filed which previously performed these operations.

Various names of variables have been changed to make them more concise.

network/router/router.go

@@ -14,7 +14,7 @@ type Router interface {
 	Init(...Option) error
 	// Options returns the router options
 	Options() Options
-	// ID returns the id of the router
+	// ID returns the ID of the router
 	ID() string
 	// Table returns the routing table
 	Table() Table
@@ -22,7 +22,7 @@ type Router interface {
 	Address() string
 	// Network returns the network address of the router
 	Network() string
-	// Advertise starts advertising routes to the network
+	// Advertise advertises routes to the network
 	Advertise() (<-chan *Advert, error)
 	// Update updates the routing table
 	Update(*Advert) error
@@ -59,7 +59,7 @@ func (ut UpdateType) String() string {
 	}
 }
 
-// Advert is sent by the router to the network
+// Advert contains a list of events advertised by the router to the network
 type Advert struct {
 	// ID is the router ID
 	ID string
@@ -81,10 +81,8 @@ type Status struct {
 }
 
 const (
-	// Init means the rotuer has just been initialized
-	Init StatusCode = iota
 	// Running means the router is up and running
-	Running
+	Running StatusCode = iota
 	// Stopped means the router has been stopped
 	Stopped
 	// Error means the router has encountered error
@@ -94,8 +92,6 @@ const (
 // String returns human readable status code
 func (sc StatusCode) String() string {
 	switch sc {
-	case Init:
-		return "INITIALIZED"
 	case Running:
 		return "RUNNING"
 	case Stopped: