Maint: internal/vpn package for vpn loop

internal/vpn/state/servers.go

@@ -0,0 +1,20 @@
+package state
+
+import "github.com/qdm12/gluetun/internal/models"
+
+type ServersGetterSetter interface {
+	GetServers() (servers models.AllServers)
+	SetServers(servers models.AllServers)
+}
+
+func (s *State) GetServers() (servers models.AllServers) {
+	s.allServersMu.RLock()
+	defer s.allServersMu.RUnlock()
+	return s.allServers
+}
+
+func (s *State) SetServers(servers models.AllServers) {
+	s.allServersMu.Lock()
+	defer s.allServersMu.Unlock()
+	s.allServers = servers
+}