github.com/braveheart12/just@v0.8.7/ledger/storage/index/lifeline.go (about) 1 /* 2 * Copyright 2019 Insolar Technologies 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package index 18 19 import ( 20 "bytes" 21 22 "github.com/insolar/insolar/core" 23 "github.com/insolar/insolar/ledger/storage/record" 24 "github.com/ugorji/go/codec" 25 ) 26 27 // ObjectLifeline represents meta information for record object. 28 type ObjectLifeline struct { 29 LatestState *core.RecordID // Amend or activate record. 30 LatestStateApproved *core.RecordID // State approved by VM. 31 ChildPointer *core.RecordID // Meta record about child activation. 32 Parent core.RecordRef 33 Delegates map[core.RecordRef]core.RecordRef 34 State record.State 35 LatestUpdate core.PulseNumber 36 } 37 38 // EncodeObjectLifeline converts lifeline index into binary format. 39 func EncodeObjectLifeline(index *ObjectLifeline) ([]byte, error) { 40 var buf bytes.Buffer 41 enc := codec.NewEncoder(&buf, &codec.CborHandle{}) 42 err := enc.Encode(index) 43 if err != nil { 44 return nil, err 45 } 46 return buf.Bytes(), nil 47 } 48 49 // DecodeObjectLifeline converts byte array into lifeline index struct. 50 func DecodeObjectLifeline(buf []byte) (*ObjectLifeline, error) { 51 dec := codec.NewDecoder(bytes.NewReader(buf), &codec.CborHandle{}) 52 var index ObjectLifeline 53 err := dec.Decode(&index) 54 if err != nil { 55 return nil, err 56 } 57 return &index, nil 58 }