X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=pkg%2Fcontrol%2Fregistry.go;h=c27e6a2ca967f390c9a9d62208461e66e0523d28;hb=7e9c5e52615fef7cbc23de28505e1a7292cdf14f;hp=8f52f970a6f6cd0d2fa3069b49fece1fd70efa63;hpb=4511475f03107eb53c88545649898e3cfbcc2765;p=ric-plt%2Fsubmgr.git

diff --git a/pkg/control/registry.go b/pkg/control/registry.go
index 8f52f97..c27e6a2 100644
--- a/pkg/control/registry.go
+++ b/pkg/control/registry.go
@@ -19,15 +19,86 @@
 
 package control
 
+import (
+	"fmt"
+	"gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
+	"sync"
+)
+
+//-----------------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------------
 type Registry struct {
-  counter int
+	mutex       sync.Mutex
+	register    map[uint16]*Subscription
+	subIds      []uint16
+	rtmgrClient *RtmgrClient
+}
+
+// This method should run as a constructor
+func (r *Registry) Initialize() {
+	r.register = make(map[uint16]*Subscription)
+	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(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()
+	var subs *Subscription = nil
+	var retrytimes uint16 = 1000
+	for ; subs == nil && retrytimes > 0; retrytimes-- {
+		sequenceNumber := r.subIds[0]
+		r.subIds = r.subIds[1:]
+		if _, ok := r.register[sequenceNumber]; ok == false {
+			subs := &Subscription{
+				registry:    r,
+				Seq:         sequenceNumber,
+				Active:      false,
+				RmrEndpoint: *endPoint,
+				Meid:        meid,
+				Trans:       nil,
+			}
+			r.register[sequenceNumber] = subs
+
+			// Update routing
+			r.mutex.Unlock()
+			err := subs.UpdateRoute(CREATE)
+			r.mutex.Lock()
+			if err != nil {
+				if _, ok := r.register[sequenceNumber]; ok {
+					delete(r.register, sequenceNumber)
+				}
+				return nil, err
+			}
+			return subs, nil
+		}
+	}
+	return nil, fmt.Errorf("Registry: Failed to reserves subscription. RmrEndpoint: %s, Meid: %s", endPoint, meid.RanName)
 }
 
-func (r *Registry) GetSubscriptionId() int {
-  return r.generateId()
+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 r.register[sn]
+	}
+	return nil
 }
 
-func (r *Registry) generateId() int {
-  r.counter += 1
-  return r.counter
+func (r *Registry) DelSubscription(sn uint16) bool {
+	r.mutex.Lock()
+	defer r.mutex.Unlock()
+	if _, ok := r.register[sn]; ok {
+		r.subIds = append(r.subIds, sn)
+		delete(r.register, sn)
+		return true
+	}
+	return false
 }