X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=pkg%2Fcontrol%2Fregistry.go;h=2750b78e28d45424d6dca1acd28b443c6bd847e0;hb=12d31af1cdfcbf5f634d9cf666e8e174c74ecb27;hp=3d70d63033f5ddc433d31fdbdd7cb93f6704a6b4;hpb=47b842bf6afc45313a0edadc78f87bff06ddf2b4;p=ric-plt%2Fsubmgr.git diff --git a/pkg/control/registry.go b/pkg/control/registry.go index 3d70d63..2750b78 100644 --- a/pkg/control/registry.go +++ b/pkg/control/registry.go @@ -20,106 +20,168 @@ 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" "sync" + "time" ) -type Subscription struct { - Seq uint16 - Active bool -} - -func (s *Subscription) Confirmed() { - s.Active = true -} - -func (s *Subscription) UnConfirmed() { - s.Active = false -} - -func (s *Subscription) IsConfirmed() bool { - return s.Active -} - +//----------------------------------------------------------------------------- +// +//----------------------------------------------------------------------------- type Registry struct { - register map[uint16]*Subscription - counter uint16 - mutex sync.Mutex + mutex sync.Mutex + register map[uint16]*Subscription + subIds []uint16 + rtmgrClient *RtmgrClient } -// This method should run as a constructor -func (r *Registry) Initialize(seedsn uint16) { +func (r *Registry) Initialize() { r.register = make(map[uint16]*Subscription) - r.counter = seedsn + var i uint16 + for i = 0; i < 65535; i++ { + r.subIds = append(r.subIds, i+1) + } } -// Reserves and returns the next free sequence number -func (r *Registry) ReserveSubscription() *Subscription { - // Check is current SequenceNumber valid - // Allocate next SequenceNumber value and retry N times +func (r *Registry) AssignToSubscription(trans *Transaction, subReqMsg *e2ap.E2APSubscriptionRequest) (*Subscription, error) { r.mutex.Lock() defer r.mutex.Unlock() - var subs *Subscription = nil - var retrytimes uint16 = 1000 - for ; subs == nil && retrytimes > 0; retrytimes-- { - sequenceNumber := r.counter - if r.counter == 65535 { - r.counter = 0 - } else { - r.counter++ - } - if _, ok := r.register[sequenceNumber]; ok == false { - r.register[sequenceNumber] = &Subscription{sequenceNumber, false} - return r.register[sequenceNumber] + + var sequenceNumber uint16 + + // + // Allocate subscription + // + if len(r.subIds) > 0 { + sequenceNumber = r.subIds[0] + r.subIds = r.subIds[1:] + if _, ok := r.register[sequenceNumber]; ok == true { + r.subIds = append(r.subIds, sequenceNumber) + return nil, fmt.Errorf("Registry: Failed to reserves subscription") } + } else { + return nil, fmt.Errorf("Registry: Failed to reserves subscription no free ids") + } + subs := &Subscription{ + registry: r, + Seq: sequenceNumber, + Meid: trans.Meid, } - return nil -} -// This function checks the validity of the given subscription id -func (r *Registry) GetSubscription(sn uint16) *Subscription { + // + // Add to subscription + // + subs.mutex.Lock() + defer subs.mutex.Unlock() + + if subs.EpList.AddEndpoint(trans.GetEndpoint()) == false { + r.subIds = append(r.subIds, sequenceNumber) + return nil, fmt.Errorf("Registry: Endpoint existing already in subscription") + } + epamount := subs.EpList.Size() + + r.mutex.Unlock() + // + // Subscription route updates + // + var err error + if epamount == 1 { + subRouteAction := SubRouteInfo{CREATE, subs.EpList, subs.Seq} + err = r.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) + } else { + subRouteAction := SubRouteInfo{UPDATE, subs.EpList, subs.Seq} + err = r.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) + } r.mutex.Lock() - defer r.mutex.Unlock() - xapp.Logger.Debug("Registry map: %v", r.register) - if _, ok := r.register[sn]; ok { - return r.register[sn] + + if err != nil { + r.subIds = append(r.subIds, sequenceNumber) + return nil, err } - return nil + subs.SubReqMsg = subReqMsg + + r.register[sequenceNumber] = subs + xapp.Logger.Debug("Registry: Create %s", subs.String()) + xapp.Logger.Debug("Registry: substable=%v", r.register) + return subs, nil } -// This function checks the validity of the given subscription id -func (r *Registry) IsValidSequenceNumber(sn uint16) bool { +func (r *Registry) RemoveFromSubscription(subs *Subscription, trans *Transaction, waitRouteClean time.Duration) error { r.mutex.Lock() defer r.mutex.Unlock() - xapp.Logger.Debug("Registry map: %v", r.register) - if _, ok := r.register[sn]; ok { - return true + subs.mutex.Lock() + defer subs.mutex.Unlock() + + delStatus := subs.EpList.DelEndpoint(trans.GetEndpoint()) + epamount := subs.EpList.Size() + + // + // If last endpoint remove from register map + // + if epamount == 0 { + if _, ok := r.register[subs.Seq]; ok { + xapp.Logger.Debug("Registry: Delete %s", subs.String()) + delete(r.register, subs.Seq) + xapp.Logger.Debug("Registry: substable=%v", r.register) + } + } + r.mutex.Unlock() + + // + // Wait some time before really do route updates + // + if waitRouteClean > 0 { + subs.mutex.Unlock() + time.Sleep(waitRouteClean) + subs.mutex.Lock() + } + + xapp.Logger.Info("Registry: Cleaning %s", subs.String()) + + // + // Subscription route updates + // + if delStatus { + if epamount == 0 { + tmpList := RmrEndpointList{} + tmpList.AddEndpoint(trans.GetEndpoint()) + subRouteAction := SubRouteInfo{DELETE, tmpList, subs.Seq} + r.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) + } else { + subRouteAction := SubRouteInfo{UPDATE, subs.EpList, subs.Seq} + r.rtmgrClient.SubscriptionRequestUpdate(subRouteAction) + } } - return false -} -// This function sets the give id as confirmed in the register -func (r *Registry) setSubscriptionToConfirmed(sn uint16) { r.mutex.Lock() - defer r.mutex.Unlock() - r.register[sn].Confirmed() + // + // If last endpoint free seq nro + // + if epamount == 0 { + r.subIds = append(r.subIds, subs.Seq) + } + + return nil } -//This function sets the given id as unused in the register -func (r *Registry) setSubscriptionToUnConfirmed(sn uint16) { +func (r *Registry) GetSubscription(sn uint16) *Subscription { r.mutex.Lock() defer r.mutex.Unlock() - r.register[sn].UnConfirmed() + if _, ok := r.register[sn]; ok { + return r.register[sn] + } + return nil } -//This function releases the given id as unused in the register -func (r *Registry) releaseSequenceNumber(sn uint16) bool { +func (r *Registry) GetSubscriptionFirstMatch(ids []uint16) (*Subscription, error) { r.mutex.Lock() defer r.mutex.Unlock() - if _, ok := r.register[sn]; ok { - delete(r.register, sn) - return true - } else { - return false + for _, id := range ids { + if _, ok := r.register[id]; ok { + return r.register[id], nil + } } + return nil, fmt.Errorf("No valid subscription found with ids %v", ids) }