X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=pkg%2Fcontrol%2Fcontrol.go;h=98a2474e8920f122671f46c0ae8c237641613461;hb=7348625b9ef03d41dd5a0ca0f6c508376259717e;hp=d213c65e1c1179a8261bb4abf43f924e4f9c7cf3;hpb=e6e9432561cb86080cd6a6db0d80622337da1bd7;p=ric-plt%2Fsubmgr.git diff --git a/pkg/control/control.go b/pkg/control/control.go old mode 100644 new mode 100755 index d213c65..98a2474 --- a/pkg/control/control.go +++ b/pkg/control/control.go @@ -19,77 +19,594 @@ package control -/* -#include +import ( + "fmt" + "gerrit.o-ran-sc.org/r/ric-plt/e2ap/pkg/e2ap" + rtmgrclient "gerrit.o-ran-sc.org/r/ric-plt/submgr/pkg/rtmgr_client" + "gerrit.o-ran-sc.org/r/ric-plt/submgr/pkg/xapptweaks" + "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/models" + "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp" + httptransport "github.com/go-openapi/runtime/client" + "github.com/go-openapi/strfmt" + "github.com/spf13/viper" + "time" +) -#cgo CFLAGS: -I../ -#cgo LDFLAGS: -lrmr_nng -lnng -*/ -import "C" +//----------------------------------------------------------------------------- +// +//----------------------------------------------------------------------------- +func idstring(err error, entries ...fmt.Stringer) string { + var retval string = "" + var filler string = "" + for _, entry := range entries { + retval += filler + entry.String() + filler = " " + } + if err != nil { + retval += filler + "err(" + err.Error() + ")" + filler = " " -import ( - "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp" - "errors" - "strconv" -) + } + return retval +} + +//----------------------------------------------------------------------------- +// +//----------------------------------------------------------------------------- + +var e2tSubReqTimeout time.Duration = 5 * time.Second +var e2tSubDelReqTime time.Duration = 5 * time.Second +var e2tMaxSubReqTryCount uint64 = 2 // Initial try + retry +var e2tMaxSubDelReqTryCount uint64 = 2 // Initial try + retry + +var e2tRecvMsgTimeout time.Duration = 5 * time.Second type Control struct { - e2ap *E2ap - registry *Registry + xapptweaks.XappWrapper + e2ap *E2ap + registry *Registry + tracker *Tracker + //subscriber *xapp.Subscriber +} + +type RMRMeid struct { + PlmnID string + EnbID string + RanName string } -func NewControl() Control { - return Control{new(E2ap),new(Registry)} +func init() { + xapp.Logger.Info("SUBMGR") + viper.AutomaticEnv() + viper.SetEnvPrefix("submgr") + viper.AllowEmptyEnv(true) +} + +func NewControl() *Control { + + transport := httptransport.New(viper.GetString("rtmgr.HostAddr")+":"+viper.GetString("rtmgr.port"), viper.GetString("rtmgr.baseUrl"), []string{"http"}) + rtmgrClient := RtmgrClient{rtClient: rtmgrclient.New(transport, strfmt.Default)} + + registry := new(Registry) + registry.Initialize() + registry.rtmgrClient = &rtmgrClient + + tracker := new(Tracker) + tracker.Init() + + //subscriber := xapp.NewSubscriber(viper.GetString("subscription.host"), viper.GetInt("subscription.timeout")) + + c := &Control{e2ap: new(E2ap), + registry: registry, + tracker: tracker, + //subscriber: subscriber, + } + c.XappWrapper.Init("") + go xapp.Subscription.Listen(c.SubscriptionHandler, c.QueryHandler, c.SubscriptionDeleteHandler) + //go c.subscriber.Listen(c.SubscriptionHandler, c.QueryHandler) + return c +} + +func (c *Control) ReadyCB(data interface{}) { + if c.Rmr == nil { + c.Rmr = xapp.Rmr + } } func (c *Control) Run() { - xapp.Run(c) -} - -func (c *Control) Consume(mtype, sub_id int, len int, payload []byte) (err error) { - switch mtype { - case C.RIC_SUB_REQ: - err = c.handleSubscriptionRequest(&RmrDatagram{mtype, sub_id, payload}) - case C.RIC_SUB_RESP: - err = c.handleSubscriptionResponse(&RmrDatagram{mtype, sub_id, payload}) - default: - err = errors.New("Message Type "+strconv.Itoa(mtype)+" discarded") - } - return -} - -func (c *Control) rmrSend(datagram *RmrDatagram) (err error) { - if !xapp.Rmr.Send(datagram.MessageType, datagram.SubscriptionId, len(datagram.Payload), datagram.Payload) { - err = errors.New("rmr.Send() failed") - } - return -} - -func (c *Control) handleSubscriptionRequest(datagram *RmrDatagram) ( err error) { - /* TODO: removed to being able to integrate with UEMGR - content, err := c.e2ap.GetPayloadContent(datagram.Payload) - */ - xapp.Logger.Info("Subscription Request Message received with ID: %v", datagram.SubscriptionId) - new_sub_id := c.registry.GetSubscriptionId() - /* TODO: removed to being able to integrate with UEMGR - payload, err := c.e2ap.SetSubscriptionSequenceNumber(datagram.Payload, new_sub_id) - if err != nil { - xapp.Logger.Error("Unable to set Subscription Sequence Number in Payload due to: "+ err.Error()) - return - } - */ - xapp.Logger.Info("New Subscription Registered, forwarding to E2T") - c.rmrSend(&RmrDatagram{C.RIC_SUB_REQ , new_sub_id, datagram.Payload}) - return -} - -func (c *Control) handleSubscriptionResponse(datagram *RmrDatagram) ( err error) { - /* TODO: removed to being able to integrate with UEMGR - content, err := c.e2ap.GetPayloadContent(datagram.Payload) - */ - xapp.Logger.Info("Subscription Response Message received with ID: %v", datagram.SubscriptionId) - xapp.Logger.Info("Subscription Response Registered, forwarding to Requestor") - c.rmrSend(&RmrDatagram{C.RIC_SUB_RESP , datagram.SubscriptionId, datagram.Payload}) - return -} \ No newline at end of file + xapp.SetReadyCB(c.ReadyCB, nil) + xapp.Run(c) +} + +//------------------------------------------------------------------- +// +//------------------------------------------------------------------- +func (c *Control) SubscriptionHandler(stype models.SubscriptionType, params interface{}) (*models.SubscriptionResponse, error) { + /* + switch p := params.(type) { + case *models.ReportParams: + trans := c.tracker.NewXappTransaction(NewRmrEndpoint(p.ClientEndpoint),"" , 0, &xapp.RMRMeid{RanName: p.Meid}) + if trans == nil { + xapp.Logger.Error("XAPP-SubReq: %s", idstring(fmt.Errorf("transaction not created"), params)) + return + } + defer trans.Release() + case *models.ControlParams: + case *models.PolicyParams: + } + */ + return &models.SubscriptionResponse{}, fmt.Errorf("Subscription rest interface not implemented") +} + +func (c *Control) SubscriptionDeleteHandler(string) error { + return fmt.Errorf("Subscription rest interface not implemented") +} + +func (c *Control) QueryHandler() (models.SubscriptionList, error) { + return c.registry.QueryHandler() +} + +//------------------------------------------------------------------- +// +//------------------------------------------------------------------- + +func (c *Control) rmrSendToE2T(desc string, subs *Subscription, trans *TransactionSubs) (err error) { + params := xapptweaks.NewParams(nil) + params.Mtype = trans.GetMtype() + params.SubId = int(subs.GetReqId().Seq) + params.Xid = "" + params.Meid = subs.GetMeid() + params.Src = "" + params.PayloadLen = len(trans.Payload.Buf) + params.Payload = trans.Payload.Buf + params.Mbuf = nil + xapp.Logger.Info("MSG to E2T: %s %s %s", desc, trans.String(), params.String()) + return c.RmrSend(params, 5) +} + +func (c *Control) rmrSendToXapp(desc string, subs *Subscription, trans *TransactionXapp) (err error) { + + params := xapptweaks.NewParams(nil) + params.Mtype = trans.GetMtype() + params.SubId = int(subs.GetReqId().Seq) + params.Xid = trans.GetXid() + params.Meid = trans.GetMeid() + params.Src = "" + params.PayloadLen = len(trans.Payload.Buf) + params.Payload = trans.Payload.Buf + params.Mbuf = nil + xapp.Logger.Info("MSG to XAPP: %s %s %s", desc, trans.String(), params.String()) + return c.RmrSend(params, 5) +} + +func (c *Control) Consume(params *xapp.RMRParams) (err error) { + msg := xapptweaks.NewParams(params) + if c.Rmr == nil { + err = fmt.Errorf("Rmr object nil can handle %s", msg.String()) + xapp.Logger.Error("%s", err.Error()) + return + } + c.CntRecvMsg++ + + defer c.Rmr.Free(msg.Mbuf) + + switch msg.Mtype { + case xapp.RIC_SUB_REQ: + go c.handleXAPPSubscriptionRequest(msg) + case xapp.RIC_SUB_RESP: + go c.handleE2TSubscriptionResponse(msg) + case xapp.RIC_SUB_FAILURE: + go c.handleE2TSubscriptionFailure(msg) + case xapp.RIC_SUB_DEL_REQ: + go c.handleXAPPSubscriptionDeleteRequest(msg) + case xapp.RIC_SUB_DEL_RESP: + go c.handleE2TSubscriptionDeleteResponse(msg) + case xapp.RIC_SUB_DEL_FAILURE: + go c.handleE2TSubscriptionDeleteFailure(msg) + default: + xapp.Logger.Info("Unknown Message Type '%d', discarding", msg.Mtype) + } + return +} + +//------------------------------------------------------------------- +// handle from XAPP Subscription Request +//------------------------------------------------------------------ +func (c *Control) handleXAPPSubscriptionRequest(params *xapptweaks.RMRParams) { + xapp.Logger.Info("MSG from XAPP: %s", params.String()) + + subReqMsg, err := c.e2ap.UnpackSubscriptionRequest(params.Payload) + if err != nil { + xapp.Logger.Error("XAPP-SubReq: %s", idstring(err, params)) + return + } + + trans := c.tracker.NewXappTransaction(xapptweaks.NewRmrEndpoint(params.Src), params.Xid, subReqMsg.RequestId.Seq, params.Meid) + if trans == nil { + xapp.Logger.Error("XAPP-SubReq: %s", idstring(fmt.Errorf("transaction not created"), params)) + return + } + defer trans.Release() + + err = c.tracker.Track(trans) + if err != nil { + xapp.Logger.Error("XAPP-SubReq: %s", idstring(err, trans)) + return + } + + //TODO handle subscription toward e2term inside AssignToSubscription / hide handleSubscriptionCreate in it? + subs, err := c.registry.AssignToSubscription(trans, subReqMsg) + if err != nil { + xapp.Logger.Error("XAPP-SubReq: %s", idstring(err, trans)) + return + } + + // + // Wake subs request + // + go c.handleSubscriptionCreate(subs, trans) + event, _ := trans.WaitEvent(0) //blocked wait as timeout is handled in subs side + + err = nil + if event != nil { + switch themsg := event.(type) { + case *e2ap.E2APSubscriptionResponse: + trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionResponse(themsg) + if err == nil { + trans.Release() + c.rmrSendToXapp("", subs, trans) + return + } + case *e2ap.E2APSubscriptionFailure: + trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionFailure(themsg) + if err == nil { + c.rmrSendToXapp("", subs, trans) + } + default: + break + } + } + xapp.Logger.Info("XAPP-SubReq: failed %s", idstring(err, trans, subs)) + //c.registry.RemoveFromSubscription(subs, trans, 5*time.Second) +} + +//------------------------------------------------------------------- +// handle from XAPP Subscription Delete Request +//------------------------------------------------------------------ +func (c *Control) handleXAPPSubscriptionDeleteRequest(params *xapptweaks.RMRParams) { + xapp.Logger.Info("MSG from XAPP: %s", params.String()) + + subDelReqMsg, err := c.e2ap.UnpackSubscriptionDeleteRequest(params.Payload) + if err != nil { + xapp.Logger.Error("XAPP-SubDelReq %s", idstring(err, params)) + return + } + + trans := c.tracker.NewXappTransaction(xapptweaks.NewRmrEndpoint(params.Src), params.Xid, subDelReqMsg.RequestId.Seq, params.Meid) + if trans == nil { + xapp.Logger.Error("XAPP-SubDelReq: %s", idstring(fmt.Errorf("transaction not created"), params)) + return + } + defer trans.Release() + + err = c.tracker.Track(trans) + if err != nil { + xapp.Logger.Error("XAPP-SubReq: %s", idstring(err, trans)) + return + } + + subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{trans.GetSubId()}) + if err != nil { + xapp.Logger.Error("XAPP-SubDelReq: %s", idstring(err, trans)) + return + } + + // + // Wake subs delete + // + go c.handleSubscriptionDelete(subs, trans) + trans.WaitEvent(0) //blocked wait as timeout is handled in subs side + + xapp.Logger.Debug("XAPP-SubDelReq: Handling event %s ", idstring(nil, trans, subs)) + + // Whatever is received send ok delete response + subDelRespMsg := &e2ap.E2APSubscriptionDeleteResponse{} + subDelRespMsg.RequestId = subs.GetReqId().RequestId + subDelRespMsg.FunctionId = subs.SubReqMsg.FunctionId + trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionDeleteResponse(subDelRespMsg) + if err == nil { + c.rmrSendToXapp("", subs, trans) + } + + //TODO handle subscription toward e2term insiged RemoveFromSubscription / hide handleSubscriptionDelete in it? + //c.registry.RemoveFromSubscription(subs, trans, 5*time.Second) +} + +//------------------------------------------------------------------- +// SUBS CREATE Handling +//------------------------------------------------------------------- +func (c *Control) handleSubscriptionCreate(subs *Subscription, parentTrans *TransactionXapp) { + + trans := c.tracker.NewSubsTransaction(subs) + subs.WaitTransactionTurn(trans) + defer subs.ReleaseTransactionTurn(trans) + defer trans.Release() + + xapp.Logger.Debug("SUBS-SubReq: Handling %s ", idstring(nil, trans, subs, parentTrans)) + + subRfMsg, valid := subs.GetCachedResponse() + if subRfMsg == nil && valid == true { + + // + // In case of failure + // - make internal delete + // - in case duplicate cause, retry (currently max 1 retry) + // + maxRetries := uint64(1) + doRetry := true + for retries := uint64(0); retries <= maxRetries && doRetry; retries++ { + doRetry = false + + event := c.sendE2TSubscriptionRequest(subs, trans, parentTrans) + switch themsg := event.(type) { + case *e2ap.E2APSubscriptionResponse: + subRfMsg, valid = subs.SetCachedResponse(event, true) + case *e2ap.E2APSubscriptionFailure: + subRfMsg, valid = subs.SetCachedResponse(event, false) + doRetry = true + for _, item := range themsg.ActionNotAdmittedList.Items { + if item.Cause.Content != e2ap.E2AP_CauseContent_Ric || (item.Cause.Value != e2ap.E2AP_CauseValue_Ric_duplicate_action && item.Cause.Value != e2ap.E2AP_CauseValue_Ric_duplicate_event) { + doRetry = false + break + } + } + xapp.Logger.Info("SUBS-SubReq: internal delete and possible retry due event(%s) retry(%t,%d/%d) %s", typeofSubsMessage(event), doRetry, retries, maxRetries, idstring(nil, trans, subs, parentTrans)) + c.sendE2TSubscriptionDeleteRequest(subs, trans, parentTrans) + default: + xapp.Logger.Info("SUBS-SubReq: internal delete due event(%s) %s", typeofSubsMessage(event), idstring(nil, trans, subs, parentTrans)) + subRfMsg, valid = subs.SetCachedResponse(nil, false) + c.sendE2TSubscriptionDeleteRequest(subs, trans, parentTrans) + } + } + + xapp.Logger.Debug("SUBS-SubReq: Handling (e2t response %s) %s", typeofSubsMessage(subRfMsg), idstring(nil, trans, subs, parentTrans)) + } else { + xapp.Logger.Debug("SUBS-SubReq: Handling (cached response %s) %s", typeofSubsMessage(subRfMsg), idstring(nil, trans, subs, parentTrans)) + } + + //Now RemoveFromSubscription in here to avoid race conditions (mostly concerns delete) + if valid == false { + c.registry.RemoveFromSubscription(subs, parentTrans, 5*time.Second) + } + parentTrans.SendEvent(subRfMsg, 0) +} + +//------------------------------------------------------------------- +// SUBS DELETE Handling +//------------------------------------------------------------------- + +func (c *Control) handleSubscriptionDelete(subs *Subscription, parentTrans *TransactionXapp) { + + trans := c.tracker.NewSubsTransaction(subs) + subs.WaitTransactionTurn(trans) + defer subs.ReleaseTransactionTurn(trans) + defer trans.Release() + + xapp.Logger.Debug("SUBS-SubDelReq: Handling %s", idstring(nil, trans, subs, parentTrans)) + + subs.mutex.Lock() + if subs.valid && subs.EpList.HasEndpoint(parentTrans.GetEndpoint()) && subs.EpList.Size() == 1 { + subs.valid = false + subs.mutex.Unlock() + c.sendE2TSubscriptionDeleteRequest(subs, trans, parentTrans) + } else { + subs.mutex.Unlock() + } + //Now RemoveFromSubscription in here to avoid race conditions (mostly concerns delete) + // If parallel deletes ongoing both might pass earlier sendE2TSubscriptionDeleteRequest(...) if + // RemoveFromSubscription locates in caller side (now in handleXAPPSubscriptionDeleteRequest(...)) + c.registry.RemoveFromSubscription(subs, parentTrans, 5*time.Second) + parentTrans.SendEvent(nil, 0) +} + +//------------------------------------------------------------------- +// send to E2T Subscription Request +//------------------------------------------------------------------- +func (c *Control) sendE2TSubscriptionRequest(subs *Subscription, trans *TransactionSubs, parentTrans *TransactionXapp) interface{} { + var err error + var event interface{} = nil + var timedOut bool = false + + subReqMsg := subs.SubReqMsg + subReqMsg.RequestId = subs.GetReqId().RequestId + trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionRequest(subReqMsg) + if err != nil { + xapp.Logger.Error("SUBS-SubReq: %s", idstring(err, trans, subs, parentTrans)) + return event + } + + for retries := uint64(0); retries < e2tMaxSubReqTryCount; retries++ { + desc := fmt.Sprintf("(retry %d)", retries) + c.rmrSendToE2T(desc, subs, trans) + event, timedOut = trans.WaitEvent(e2tSubReqTimeout) + if timedOut { + continue + } + break + } + xapp.Logger.Debug("SUBS-SubReq: Response handling event(%s) %s", typeofSubsMessage(event), idstring(nil, trans, subs, parentTrans)) + return event +} + +//------------------------------------------------------------------- +// send to E2T Subscription Delete Request +//------------------------------------------------------------------- + +func (c *Control) sendE2TSubscriptionDeleteRequest(subs *Subscription, trans *TransactionSubs, parentTrans *TransactionXapp) interface{} { + var err error + var event interface{} + var timedOut bool + + subDelReqMsg := &e2ap.E2APSubscriptionDeleteRequest{} + subDelReqMsg.RequestId = subs.GetReqId().RequestId + subDelReqMsg.FunctionId = subs.SubReqMsg.FunctionId + trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionDeleteRequest(subDelReqMsg) + if err != nil { + xapp.Logger.Error("SUBS-SubDelReq: %s", idstring(err, trans, subs, parentTrans)) + return event + } + + for retries := uint64(0); retries < e2tMaxSubDelReqTryCount; retries++ { + desc := fmt.Sprintf("(retry %d)", retries) + c.rmrSendToE2T(desc, subs, trans) + event, timedOut = trans.WaitEvent(e2tSubDelReqTime) + if timedOut { + continue + } + break + } + xapp.Logger.Debug("SUBS-SubDelReq: Response handling event(%s) %s", typeofSubsMessage(event), idstring(nil, trans, subs, parentTrans)) + return event +} + +//------------------------------------------------------------------- +// handle from E2T Subscription Reponse +//------------------------------------------------------------------- +func (c *Control) handleE2TSubscriptionResponse(params *xapptweaks.RMRParams) { + xapp.Logger.Info("MSG from E2T: %s", params.String()) + subRespMsg, err := c.e2ap.UnpackSubscriptionResponse(params.Payload) + if err != nil { + xapp.Logger.Error("MSG-SubResp %s", idstring(err, params)) + return + } + subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{subRespMsg.RequestId.Seq}) + if err != nil { + xapp.Logger.Error("MSG-SubResp: %s", idstring(err, params)) + return + } + trans := subs.GetTransaction() + if trans == nil { + err = fmt.Errorf("Ongoing transaction not found") + xapp.Logger.Error("MSG-SubResp: %s", idstring(err, params, subs)) + return + } + sendOk, timedOut := trans.SendEvent(subRespMsg, e2tRecvMsgTimeout) + if sendOk == false { + err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut) + xapp.Logger.Error("MSG-SubResp: %s", idstring(err, trans, subs)) + } + return +} + +//------------------------------------------------------------------- +// handle from E2T Subscription Failure +//------------------------------------------------------------------- +func (c *Control) handleE2TSubscriptionFailure(params *xapptweaks.RMRParams) { + xapp.Logger.Info("MSG from E2T: %s", params.String()) + subFailMsg, err := c.e2ap.UnpackSubscriptionFailure(params.Payload) + if err != nil { + xapp.Logger.Error("MSG-SubFail %s", idstring(err, params)) + return + } + subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{subFailMsg.RequestId.Seq}) + if err != nil { + xapp.Logger.Error("MSG-SubFail: %s", idstring(err, params)) + return + } + trans := subs.GetTransaction() + if trans == nil { + err = fmt.Errorf("Ongoing transaction not found") + xapp.Logger.Error("MSG-SubFail: %s", idstring(err, params, subs)) + return + } + sendOk, timedOut := trans.SendEvent(subFailMsg, e2tRecvMsgTimeout) + if sendOk == false { + err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut) + xapp.Logger.Error("MSG-SubFail: %s", idstring(err, trans, subs)) + } + return +} + +//------------------------------------------------------------------- +// handle from E2T Subscription Delete Response +//------------------------------------------------------------------- +func (c *Control) handleE2TSubscriptionDeleteResponse(params *xapptweaks.RMRParams) (err error) { + xapp.Logger.Info("MSG from E2T: %s", params.String()) + subDelRespMsg, err := c.e2ap.UnpackSubscriptionDeleteResponse(params.Payload) + if err != nil { + xapp.Logger.Error("MSG-SubDelResp: %s", idstring(err, params)) + return + } + subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{subDelRespMsg.RequestId.Seq}) + if err != nil { + xapp.Logger.Error("MSG-SubDelResp: %s", idstring(err, params)) + return + } + trans := subs.GetTransaction() + if trans == nil { + err = fmt.Errorf("Ongoing transaction not found") + xapp.Logger.Error("MSG-SubDelResp: %s", idstring(err, params, subs)) + return + } + sendOk, timedOut := trans.SendEvent(subDelRespMsg, e2tRecvMsgTimeout) + if sendOk == false { + err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut) + xapp.Logger.Error("MSG-SubDelResp: %s", idstring(err, trans, subs)) + } + return +} + +//------------------------------------------------------------------- +// handle from E2T Subscription Delete Failure +//------------------------------------------------------------------- +func (c *Control) handleE2TSubscriptionDeleteFailure(params *xapptweaks.RMRParams) { + xapp.Logger.Info("MSG from E2T: %s", params.String()) + subDelFailMsg, err := c.e2ap.UnpackSubscriptionDeleteFailure(params.Payload) + if err != nil { + xapp.Logger.Error("MSG-SubDelFail: %s", idstring(err, params)) + return + } + subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{subDelFailMsg.RequestId.Seq}) + if err != nil { + xapp.Logger.Error("MSG-SubDelFail: %s", idstring(err, params)) + return + } + trans := subs.GetTransaction() + if trans == nil { + err = fmt.Errorf("Ongoing transaction not found") + xapp.Logger.Error("MSG-SubDelFail: %s", idstring(err, params, subs)) + return + } + sendOk, timedOut := trans.SendEvent(subDelFailMsg, e2tRecvMsgTimeout) + if sendOk == false { + err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut) + xapp.Logger.Error("MSG-SubDelFail: %s", idstring(err, trans, subs)) + } + return +} + +//------------------------------------------------------------------- +// +//------------------------------------------------------------------- +func typeofSubsMessage(v interface{}) string { + if v == nil { + return "NIL" + } + switch v.(type) { + case *e2ap.E2APSubscriptionRequest: + return "SubReq" + case *e2ap.E2APSubscriptionResponse: + return "SubResp" + case *e2ap.E2APSubscriptionFailure: + return "SubFail" + case *e2ap.E2APSubscriptionDeleteRequest: + return "SubDelReq" + case *e2ap.E2APSubscriptionDeleteResponse: + return "SubDelResp" + case *e2ap.E2APSubscriptionDeleteFailure: + return "SubDelFail" + default: + return "Unknown" + } +}