implement simple propagation delay benchmark in RtdtManager, add option to...

implement simple propagation delay benchmark in RtdtManager, add option to save ChangeRequests of successfully applied changes so they can later be applied back to realnet from a virtual venv
Merged diverging branches

applications/rtdt-manager/data/gNMISubscriptions.txt

-system/config/hostname
 system/config/domain-name

applications/rtdt-manager/main.go

@@ -70,7 +70,7 @@ func main() {
 	// Do performance tests of realnet before starting twin
 	if benchmark {
 		fmt.Println("Now doing performance measurements of gosdn's propagation delay ")
-		rtdtMan.RunBenchmark()
+		rtdtMan.RunBenchmark0()
 	}
 
 	if withTwin {

applications/rtdt-manager/rtdt-manager/rtdt-manager.go

@@ -64,8 +64,26 @@ func (r *RtdtManager) LaunchTwin(twinSubnetIPv4, twinSubnetIPv6, twinName string
 	return nil
 }
 
+// Apply the changes from a twin back to realnet
+func (r *RtdtManager) ApplyChanges(twinName string) error {
+	var twin *venv.VEnv
+	for _, tw := range r.rtdt_twins {
+		if tw.Name == twinName {
+			twin = tw
+		}
+	}
+	for _, change := range *twin.GetSavedChanges() {
+		mneid := change.Mneid
+		path := change.Path.String()
+		val := change.Value
+		//apiOp := change.ApiOp
+		r.realnet.SetGnmiPath(path, val.GetStringVal(), mneid, false)
+	}
+	return nil
+}
+
 // Performance benchmarks of realnet
-func (r *RtdtManager) RunBenchmark() error {
+func (r *RtdtManager) RunBenchmark0() error {
 	var mneid string
 	for _, node := range r.realnet.GetTopology().Nodes {
 		if strings.HasPrefix(node.Name, "gnmi-target-switch0") {

applications/rtdt-manager/rtdt-topology/rtdt-topology.go

@@ -39,7 +39,6 @@ type Topology struct {
 }
 
 func NewTopology() *Topology {
-
 	return &Topology{}
 }
 

applications/rtdt-manager/venv/venv.go

@@ -341,3 +341,6 @@ func (v *VEnv) GetWaitgroup() *sync.WaitGroup {
 func (v *VEnv) GetTopology() *rtdt_topology.Topology {
 	return &v.topology
 }
+func (v *VEnv) GetSavedChanges() *[]*networkelement.ChangeRequest {
+    return &v.savedChanges
+}

controller/configs/gNMISubscriptions.txt.example

-system/config/hostname
 system/config/domain-name