/* ================================================================================== Copyright (c) 2019 AT&T Intellectual Property. Copyright (c) 2019 Nokia Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ================================================================================== */ package control import ( "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" "time" ) //----------------------------------------------------------------------------- // //----------------------------------------------------------------------------- type TransactionIf interface { String() string Release() SendEvent(interface{}, time.Duration) (bool, bool) WaitEvent(time.Duration) (interface{}, bool) } //----------------------------------------------------------------------------- // //----------------------------------------------------------------------------- type Transaction struct { mutex sync.Mutex // Seq uint64 //transaction sequence tracker *Tracker //tracker instance Meid *xapp.RMRMeid //meid transaction related ReqId RequestId // Mtype int //Encoded message type to be send Payload *e2ap.PackedData //Encoded message to be send EventChan chan interface{} } func (t *Transaction) String() string { return "trans(" + strconv.FormatUint(uint64(t.Seq), 10) + "/" + t.Meid.RanName + "/" + t.ReqId.String() + ")" } func (t *Transaction) SendEvent(event interface{}, waittime time.Duration) (bool, bool) { if waittime > 0 { select { case t.EventChan <- event: return true, false case <-time.After(waittime): return false, true } return false, false } t.EventChan <- event return true, false } func (t *Transaction) WaitEvent(waittime time.Duration) (interface{}, bool) { if waittime > 0 { select { case event := <-t.EventChan: return event, false case <-time.After(waittime): return nil, true } } event := <-t.EventChan return event, false } func (t *Transaction) GetReqId() *RequestId { t.mutex.Lock() defer t.mutex.Unlock() return &t.ReqId } func (t *Transaction) GetMtype() int { t.mutex.Lock() defer t.mutex.Unlock() return t.Mtype } func (t *Transaction) GetMeid() *xapp.RMRMeid { t.mutex.Lock() defer t.mutex.Unlock() if t.Meid != nil { return t.Meid } return nil } func (t *Transaction) GetPayload() *e2ap.PackedData { t.mutex.Lock() defer t.mutex.Unlock() return t.Payload } //----------------------------------------------------------------------------- // //----------------------------------------------------------------------------- type TransactionSubs struct { Transaction // } func (t *TransactionSubs) String() string { return "transsubs(" + t.Transaction.String() + ")" } func (t *TransactionSubs) Release() { t.mutex.Lock() xapp.Logger.Debug("RELEASE %s", t.String()) t.tracker = nil t.mutex.Unlock() } //----------------------------------------------------------------------------- // //----------------------------------------------------------------------------- type TransactionXappKey struct { RmrEndpoint Xid string // xapp xid in req } func (key *TransactionXappKey) String() string { return "transkey(" + key.RmrEndpoint.String() + "/" + key.Xid + ")" } //----------------------------------------------------------------------------- // //----------------------------------------------------------------------------- type TransactionXapp struct { Transaction // XappKey *TransactionXappKey // } func (t *TransactionXapp) String() string { var transkey string = "transkey(N/A)" if t.XappKey != nil { transkey = t.XappKey.String() } return "transxapp(" + t.Transaction.String() + "/" + transkey + ")" } func (t *TransactionXapp) GetEndpoint() *RmrEndpoint { t.mutex.Lock() defer t.mutex.Unlock() if t.XappKey != nil { return &t.XappKey.RmrEndpoint } return nil } func (t *TransactionXapp) GetXid() string { t.mutex.Lock() defer t.mutex.Unlock() if t.XappKey != nil { return t.XappKey.Xid } return "" } func (t *TransactionXapp) GetSrc() string { t.mutex.Lock() defer t.mutex.Unlock() if t.XappKey != nil { return t.XappKey.RmrEndpoint.String() } return "" } func (t *TransactionXapp) Release() { t.mutex.Lock() xapp.Logger.Debug("RELEASE %s", t.String()) tracker := t.tracker xappkey := t.XappKey t.tracker = nil t.mutex.Unlock() if tracker != nil && xappkey != nil { tracker.UnTrackTransaction(*xappkey) } }