package control
import (
- "fmt"
+ "gerrit.o-ran-sc.org/r/ric-plt/e2ap/pkg/e2ap"
"gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
"strconv"
"sync"
//
//-----------------------------------------------------------------------------
type Subscription struct {
- mutex sync.Mutex
- registry *Registry
- Seq uint16
- Active bool
- //
- Meid *xapp.RMRMeid
- EpList RmrEndpointList
- Trans *Transaction
-}
-
-func (s *Subscription) stringImpl() string {
- return "subs(" + strconv.FormatUint(uint64(s.Seq), 10) + "/" + s.Meid.RanName + "/" + s.EpList.String() + ")"
+ mutex sync.Mutex // Lock
+ registry *Registry // Registry
+ Seq uint16 // SubsId
+ Meid *xapp.RMRMeid // Meid/ RanName
+ EpList RmrEndpointList // Endpoints
+ TransLock sync.Mutex // Lock transactions, only one executed per time for subs
+ TheTrans *Transaction // Ongoing transaction from xapp
+ SubReqMsg *e2ap.E2APSubscriptionRequest // Subscription information
+ SubRespMsg *e2ap.E2APSubscriptionResponse // Subscription information
}
func (s *Subscription) String() string {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- return s.stringImpl()
+ return "subs(" + strconv.FormatUint(uint64(s.Seq), 10) + "/" + s.Meid.RanName + "/" + s.EpList.String() + ")"
}
func (s *Subscription) GetSubId() uint16 {
return nil
}
-func (s *Subscription) Confirmed() {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- s.Active = true
-}
-
-func (s *Subscription) UnConfirmed() {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- s.Active = false
-}
-
-func (s *Subscription) IsConfirmed() bool {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- return s.Active
-}
-
-func (s *Subscription) IsEndpoint(ep *RmrEndpoint) bool {
- s.mutex.Lock()
- defer s.mutex.Unlock()
- return s.EpList.HasEndpoint(ep)
-}
-
-func (s *Subscription) SetTransaction(trans *Transaction) error {
- s.mutex.Lock()
- defer s.mutex.Unlock()
-
- if s.Trans != nil {
- return fmt.Errorf("subs(%s) trans(%s) exist, can not register trans(%s)", s.stringImpl(), s.Trans, trans)
- }
- trans.Subs = s
- s.Trans = trans
-
- if len(s.EpList.Endpoints) == 0 {
- s.EpList.Endpoints = append(s.EpList.Endpoints, trans.RmrEndpoint)
- return s.updateRouteImpl(CREATE)
- } else if s.EpList.HasEndpoint(&trans.RmrEndpoint) == false {
- s.EpList.Endpoints = append(s.EpList.Endpoints, trans.RmrEndpoint)
- return s.updateRouteImpl(MERGE)
- }
- return nil
-}
-
-func (s *Subscription) UnSetTransaction(trans *Transaction) bool {
+func (s *Subscription) IsTransactionReserved() bool {
s.mutex.Lock()
defer s.mutex.Unlock()
- if trans == nil || trans == s.Trans {
- s.Trans = nil
+ if s.TheTrans != nil {
return true
}
return false
+
}
func (s *Subscription) GetTransaction() *Transaction {
s.mutex.Lock()
defer s.mutex.Unlock()
- return s.Trans
+ return s.TheTrans
}
-func (s *Subscription) updateRouteImpl(act Action) error {
- subRouteAction := SubRouteInfo{act, s.EpList, s.Seq}
- err := s.registry.rtmgrClient.SubscriptionRequestUpdate(subRouteAction)
- if err != nil {
- return fmt.Errorf("subs(%s) %s", s.stringImpl(), err.Error())
- }
- return nil
-}
-
-func (s *Subscription) UpdateRoute(act Action) error {
+func (s *Subscription) WaitTransactionTurn(trans *Transaction) {
+ s.TransLock.Lock()
s.mutex.Lock()
- defer s.mutex.Unlock()
- return s.updateRouteImpl(act)
+ s.TheTrans = trans
+ s.mutex.Unlock()
}
-func (s *Subscription) Release() {
- s.registry.DelSubscription(s.Seq)
- err := s.UpdateRoute(DELETE)
- if err != nil {
- xapp.Logger.Error("%s", err.Error())
+func (s *Subscription) ReleaseTransactionTurn(trans *Transaction) {
+ s.mutex.Lock()
+ if trans != nil && trans == s.TheTrans {
+ s.TheTrans = nil
}
+ s.mutex.Unlock()
+ s.TransLock.Unlock()
}