package control
import (
+ "fmt"
"gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
"sync"
)
-type Subscription struct {
- Seq uint16
- Confirmed bool
-}
-
+//-----------------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------------
type Registry struct {
- register map[uint16]*Subscription
- counter uint16
- mutex sync.Mutex
+ mutex sync.Mutex
+ register map[uint16]*Subscription
+ counter uint16
+ rtmgrClient *RtmgrClient
}
// This method should run as a constructor
}
// Reserves and returns the next free sequence number
-func (r *Registry) ReserveSequenceNumber() (uint16, bool) {
+func (r *Registry) ReserveSubscription(endPoint RmrEndpoint, meid *xapp.RMRMeid) (*Subscription, error) {
// Check is current SequenceNumber valid
+ // Allocate next SequenceNumber value and retry N times
r.mutex.Lock()
defer r.mutex.Unlock()
- sequenceNumber := r.counter
- if _, ok := r.register[sequenceNumber]; ok {
- xapp.Logger.Error("Invalid SeqenceNumber sequenceNumber: %v", sequenceNumber)
- return sequenceNumber, false
- }
- r.register[sequenceNumber] = &Subscription{sequenceNumber, false}
+ 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 {
+ subs := &Subscription{
+ Seq: sequenceNumber,
+ Active: false,
+ RmrEndpoint: endPoint,
+ Meid: meid,
+ Trans: nil,
+ }
+ r.register[sequenceNumber] = subs
- // Allocate next SequenceNumber value
- if r.counter == 65535 {
- r.counter = 0
- } else {
- r.counter++
+ // Update routing
+ r.mutex.Unlock()
+ err := subs.UpdateRoute(CREATE, r.rtmgrClient)
+ r.mutex.Lock()
+ if err != nil {
+ if _, ok := r.register[sequenceNumber]; ok {
+ delete(r.register, sequenceNumber)
+ }
+ return nil, err
+ }
+ return subs, nil
+ }
}
- return sequenceNumber, true
+ return nil, fmt.Errorf("Registry: Failed to reserves subcription. RmrEndpoint: %s, Meid: %s", endPoint, meid.RanName)
}
-// This function checks the validity of the given subscription id
-func (r *Registry) IsValidSequenceNumber(sn uint16) bool {
+func (r *Registry) GetSubscription(sn uint16) *Subscription {
r.mutex.Lock()
defer r.mutex.Unlock()
xapp.Logger.Debug("Registry map: %v", r.register)
if _, ok := r.register[sn]; ok {
- return true
+ return r.register[sn]
}
- return false
+ return nil
}
-// 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 = true
-}
-
-//This function sets the given id as unused in the register
-func (r *Registry) deleteSubscription(sn uint16) {
- r.mutex.Lock()
- defer r.mutex.Unlock()
- r.register[sn].Confirmed = false
-}
-
-//This function releases the given id as unused in the register
-func (r *Registry) releaseSequenceNumber(sn uint16) bool {
+func (r *Registry) DelSubscription(sn uint16) bool {
r.mutex.Lock()
defer r.mutex.Unlock()
if _, ok := r.register[sn]; ok {
+ subs := r.register[sn]
delete(r.register, sn)
+
+ // Update routing
+ r.mutex.Unlock()
+ err := subs.UpdateRoute(DELETE, r.rtmgrClient)
+ r.mutex.Lock()
+ if err != nil {
+ xapp.Logger.Error("Registry: Failed to del route. SubId: %d, RmrEndpoint: %s", subs.Seq, subs.RmrEndpoint)
+ }
return true
- } else {
- return false
}
+ return false
}