+func (r *Registry) AssignToSubscription(trans *Transaction, subReqMsg *e2ap.E2APSubscriptionRequest) (*Subscription, error) {
+ r.mutex.Lock()
+ defer r.mutex.Unlock()
+ if len(r.subIds) > 0 {
+ sequenceNumber := r.subIds[0]
+ r.subIds = r.subIds[1:]
+ if _, ok := r.register[sequenceNumber]; ok == false {
+ subs := &Subscription{
+ registry: r,
+ Seq: sequenceNumber,
+ Meid: trans.Meid,
+ }
+ err := subs.AddEndpoint(trans.GetEndpoint())
+ if err != nil {
+ return nil, err
+ }
+ subs.SubReqMsg = subReqMsg