Refactor: added ping messages for auto peering and refactored code

plugins/autopeering/server/udp/events.go

 package udp
 
 import (
+    "github.com/iotaledger/goshimmer/plugins/autopeering/protocol/ping"
     "github.com/iotaledger/goshimmer/plugins/autopeering/protocol/request"
     "github.com/iotaledger/goshimmer/plugins/autopeering/protocol/response"
     "net"
@@ -8,17 +9,37 @@ import (
 )
 
 var Events = &pluginEvents{
-    ReceiveRequest: &requestEvent{make(map[uintptr]ConnectionPeeringRequestConsumer)},
+    ReceivePing:     &pingEvent{make(map[uintptr]PingConsumer)},
+    ReceiveRequest:  &requestEvent{make(map[uintptr]ConnectionPeeringRequestConsumer)},
     ReceiveResponse: &responseEvent{make(map[uintptr]ConnectionPeeringResponseConsumer)},
-    Error:          &ipErrorEvent{make(map[uintptr]IPErrorConsumer)},
+    Error:           &ipErrorEvent{make(map[uintptr]IPErrorConsumer)},
 }
 
 type pluginEvents struct {
+    ReceivePing     *pingEvent
     ReceiveRequest  *requestEvent
     ReceiveResponse *responseEvent
     Error           *ipErrorEvent
 }
 
+type pingEvent struct {
+    callbacks map[uintptr]PingConsumer
+}
+
+func (this *pingEvent) Attach(callback PingConsumer) {
+    this.callbacks[reflect.ValueOf(callback).Pointer()] = callback
+}
+
+func (this *pingEvent) Detach(callback PingConsumer) {
+    delete(this.callbacks, reflect.ValueOf(callback).Pointer())
+}
+
+func (this *pingEvent) Trigger(ping *ping.Ping) {
+    for _, callback := range this.callbacks {
+        callback(ping)
+    }
+}
+
 type requestEvent struct {
     callbacks map[uintptr]ConnectionPeeringRequestConsumer
 }
@@ -72,4 +93,3 @@ func (this *ipErrorEvent) Trigger(ip net.IP, err error) {
         callback(ip, err)
     }
 }
-

plugins/autopeering/server/udp/server.go

@@ -5,6 +5,7 @@ import (
     "github.com/iotaledger/goshimmer/packages/network/udp"
     "github.com/iotaledger/goshimmer/packages/node"
     "github.com/iotaledger/goshimmer/plugins/autopeering/parameters"
+    "github.com/iotaledger/goshimmer/plugins/autopeering/protocol/ping"
     "github.com/iotaledger/goshimmer/plugins/autopeering/protocol/request"
     "github.com/iotaledger/goshimmer/plugins/autopeering/protocol/response"
     "github.com/pkg/errors"
@@ -72,6 +73,14 @@ func processReceivedData(addr *net.UDPAddr, data []byte) {
 
             Events.ReceiveResponse.Trigger(peeringResponse)
         }
+    case ping.MARSHALLED_PACKET_HEADER:
+        if ping, err := ping.Unmarshal(data); err != nil {
+            Events.Error.Trigger(addr.IP, err)
+        } else {
+            ping.Issuer.Address = addr.IP
+
+            Events.ReceivePing.Trigger(ping)
+        }
     default:
         Events.Error.Trigger(addr.IP, errors.New("invalid UDP peering packet from " + addr.IP.String()))
     }

plugins/autopeering/server/udp/types.go

 package udp
 
 import (
+    "github.com/iotaledger/goshimmer/plugins/autopeering/protocol/ping"
     "github.com/iotaledger/goshimmer/plugins/autopeering/protocol/request"
     "github.com/iotaledger/goshimmer/plugins/autopeering/protocol/response"
     "net"
 )
 
+type PingConsumer = func(p *ping.Ping)
+
 type ConnectionPeeringRequestConsumer = func(request *request.Request)
 
 type ConnectionPeeringResponseConsumer = func(peeringResponse *response.Response)

plugins/gossip/neighbormanager/accepted_neighbors.go

+package neighbormanager
+
+import (
+    "github.com/iotaledger/goshimmer/plugins/autopeering/peermanager/types"
+)
+
+var ACCEPTED_NEIGHBORS = make(types.PeerRegister)

plugins/gossip/neighbormanager/chosen_neighbors.go

+package neighbormanager
+
+import (
+    "github.com/iotaledger/goshimmer/plugins/autopeering/peermanager/types"
+)
+
+var CHOSEN_NEIGHBORS = make(types.PeerRegister)

plugins/gossip/neighbormanager/neighbormanager.go

+package neighbormanager
+
+

plugins/statusscreen/ui_header_bar.go

@@ -5,6 +5,7 @@ import (
     "github.com/gdamore/tcell"
     "github.com/iotaledger/goshimmer/packages/accountability"
     "github.com/iotaledger/goshimmer/plugins/autopeering/peermanager"
+    "github.com/iotaledger/goshimmer/plugins/gossip/neighbormanager"
     "github.com/rivo/tview"
     "math"
     "strconv"
@@ -62,10 +63,11 @@ func (headerBar *UIHeaderBar) Update() {
     fmt.Fprintln(headerBar.InfoContainer)
     fmt.Fprintln(headerBar.InfoContainer)
     fmt.Fprintln(headerBar.InfoContainer)
-    fmt.Fprintln(headerBar.InfoContainer)
     fmt.Fprintf(headerBar.InfoContainer, "[::b]Node ID: [::d]%40v  ", accountability.OWN_ID.StringIdentifier)
     fmt.Fprintln(headerBar.InfoContainer)
-    fmt.Fprintf(headerBar.InfoContainer, "[::b]Known Peers: [::d]%40v  ", strconv.Itoa(len(peermanager.KNOWN_PEERS.Peers)))
+    fmt.Fprintf(headerBar.InfoContainer, "[::b]Neighbors: [::d]%40v  ", strconv.Itoa(len(neighbormanager.CHOSEN_NEIGHBORS)) + " chosen / " + strconv.Itoa(len(neighbormanager.ACCEPTED_NEIGHBORS)) + " accepted")
+    fmt.Fprintln(headerBar.InfoContainer)
+    fmt.Fprintf(headerBar.InfoContainer, "[::b]Known Peers: [::d]%40v  ", strconv.Itoa(len(peermanager.KNOWN_PEERS)) + " total / " + strconv.Itoa(len(peermanager.NEIGHBORHOOD)) + " neighborhood")
     fmt.Fprintln(headerBar.InfoContainer)
     fmt.Fprintf(headerBar.InfoContainer, "[::b]Uptime: [::d]");