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lock_store.go
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lock_store.go
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/*
*/
package bitcoin
/*
import (
"fmt"
"github.com/Oneledger/protocol/serialize"
"github.com/Oneledger/protocol/storage"
"github.com/pkg/errors"
)
type LockStore struct {
*storage.ChainState
serialize.Serializer
}
func NewLockStore(name, dbDir, configDB string, typ storage.StorageType) *LockStore {
cs := storage.NewChainState(name, dbDir, configDB, typ)
return &LockStore{
cs,
serialize.GetSerializer(serialize.PERSISTENT),
}
}
func (ls *LockStore) GetLatestUTXO(lockName string) (UTXO, error) {
tracker := utxoTracker{}
d := ls.Get(storage.StoreKey(lockName), false)
if len(d) == 0 {
return tracker.UTXO, errors.New("tracker not found")
}
err := ls.Deserialize(d, &tracker)
return tracker.UTXO, err
}
func (ls *LockStore) UpdateUTXO(lockName string, utxo UTXO) error {
d := ls.Get(storage.StoreKey(lockName), false)
if len(d) == 0 {
d = ls.Get(storage.StoreKey(lockName), true)
}
fmt.Println(string(d))
tracker := utxoTracker{}
err := ls.Deserialize(d, &tracker)
if err != nil {
return err
}
if tracker.IsBusy() {
return errors.New("tracker busy")
}
tracker.PreviousTxID = tracker.UTXO.TxID
tracker.State = StatusBusy
tracker.UTXO = utxo
d, err = ls.Serialize(tracker)
if err != nil {
return err
}
err = ls.Set(storage.StoreKey(lockName), d)
return err
}
func (ls *LockStore) InitializeTracker(lockName string, utxo UTXO) error {
doesExist := ls.Exists(storage.StoreKey(lockName))
if doesExist {
return errors.New("already initialized")
}
doesExist = ls.ExistsUncommitted(storage.StoreKey(lockName))
if doesExist {
return errors.New("already initialized")
}
tracker := utxoTracker{}
tracker.PreviousTxID = tracker.UTXO.TxID
tracker.State = StatusBusy
tracker.UTXO = utxo
d, err := ls.Serialize(tracker)
if err != nil {
return err
}
err = ls.Set(storage.StoreKey(lockName), d)
return err
}
func (ls *LockStore) FinalizeTracker(lockName string) error {
d := ls.Get(storage.StoreKey(lockName), false)
if len(d) == 0 {
return errors.New("tracker not found")
}
tracker := utxoTracker{}
err := ls.Deserialize(d, &tracker)
if err != nil {
return err
}
if tracker.IsAvailable() {
return errors.New("tracker not busy")
}
tracker.State = StatusAvailable
d, err = ls.Serialize(tracker)
if err != nil {
return err
}
err = ls.Set(storage.StoreKey(lockName), d)
return err
}
func (ls *LockStore) GetAllTrackers() map[string]utxoTracker {
trackerData := ls.FindAll()
var trackerMap = map[string]utxoTracker{}
for name, data := range trackerData {
tracker := utxoTracker{}
err := ls.Deserialize(data, &tracker)
if err == nil {
trackerMap[name] = tracker
}
}
return trackerMap
}
func (ls *LockStore) GetActiveTrackers() map[string]utxoTracker {
trackerData := ls.FindAll()
var trackerMap = map[string]utxoTracker{}
for name, data := range trackerData {
tracker := utxoTracker{}
err := ls.Deserialize(data, &tracker)
if err == nil && tracker.IsAvailable() {
trackerMap[name] = tracker
}
}
return trackerMap
}
*/