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migration.go
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migration.go
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package migration
import (
"encoding/binary"
"errors"
"fmt"
"github.com/qlcchain/go-qlc/common/storage"
"github.com/qlcchain/go-qlc/common/types"
"github.com/qlcchain/go-qlc/common/vmcontract/contractaddress"
"github.com/qlcchain/go-qlc/config"
)
type MigrationV1ToV11 struct {
}
func (m MigrationV1ToV11) Migrate(store storage.Store) error {
return store.BatchWrite(true, func(batch storage.Batch) error {
if b, err := checkVersion(m, store); err == nil && b {
fmt.Println("migrate ledger to v11")
if err := store.Drop(nil); err == nil {
return updateVersion(m, batch)
} else {
return err
}
} else {
return err
}
})
}
func (m MigrationV1ToV11) StartVersion() int {
return 1
}
func (m MigrationV1ToV11) EndVersion() int {
return 11
}
type MigrationV11ToV12 struct {
}
func (m MigrationV11ToV12) Migrate(store storage.Store) error {
return store.BatchWrite(true, func(batch storage.Batch) error {
b, err := checkVersion(m, store)
if err != nil {
return err
}
if b {
fmt.Println("migrate ledger v11 to v12 ")
representMap := make(map[types.Address]*types.Benefit)
err = batch.Iterator([]byte{byte(storage.KeyPrefixAccount)}, nil, func(key []byte, val []byte) error {
am := new(types.AccountMeta)
if err := am.Deserialize(val); err != nil {
return err
}
tm := am.Token(config.ChainToken())
if tm != nil {
if _, ok := representMap[tm.Representative]; !ok {
representMap[tm.Representative] = &types.Benefit{
Balance: types.ZeroBalance,
Vote: types.ZeroBalance,
Network: types.ZeroBalance,
Storage: types.ZeroBalance,
Oracle: types.ZeroBalance,
Total: types.ZeroBalance,
}
}
representMap[tm.Representative].Balance = representMap[tm.Representative].Balance.Add(am.CoinBalance)
representMap[tm.Representative].Vote = representMap[tm.Representative].Vote.Add(am.CoinVote)
representMap[tm.Representative].Network = representMap[tm.Representative].Network.Add(am.CoinNetwork)
representMap[tm.Representative].Total = representMap[tm.Representative].Total.Add(am.VoteWeight())
}
return nil
})
if err := batch.Drop([]byte{byte(storage.KeyPrefixRepresentation)}); err != nil {
return err
}
for address, benefit := range representMap {
key, err := storage.GetKeyOfParts(storage.KeyPrefixRepresentation, address)
if err != nil {
return err
}
val, err := benefit.MarshalMsg(nil)
if err != nil {
return err
}
if err := batch.Put(key, val); err != nil {
return err
}
}
// delete cache
if err := batch.Drop([]byte{byte(storage.KeyPrefixRepresentationCache)}); err != nil {
return err
}
return updateVersion(m, batch)
}
return nil
})
}
func (m MigrationV11ToV12) StartVersion() int {
return 11
}
func (m MigrationV11ToV12) EndVersion() int {
return 12
}
type MigrationV12ToV13 struct {
}
func (m MigrationV12ToV13) Migrate(store storage.Store) error {
return store.BatchWrite(false, func(batch storage.Batch) error {
b, err := checkVersion(m, store)
if err != nil {
return err
}
if b {
fmt.Println("migrate ledger v12 to v13 ")
var frontiers []*types.Frontier
prefix, _ := storage.GetKeyOfParts(storage.KeyPrefixFrontier)
err := store.Iterator(prefix, nil, func(key []byte, val []byte) error {
var frontier types.Frontier
copy(frontier.HeaderBlock[:], key[1:])
copy(frontier.OpenBlock[:], val)
frontiers = append(frontiers, &frontier)
return nil
})
if err != nil {
return err
}
for _, f := range frontiers {
k, err := storage.GetKeyOfParts(storage.KeyPrefixFrontier, f.HeaderBlock)
if err != nil {
return err
}
v, err := f.OpenBlock.Serialize()
if err != nil {
return err
}
if err := batch.Put(k, v); err != nil {
return err
}
}
return updateVersion(m, batch)
}
return nil
})
}
func (m MigrationV12ToV13) StartVersion() int {
return 12
}
func (m MigrationV12ToV13) EndVersion() int {
return 13
}
type MigrationV13ToV14 struct {
}
func (m MigrationV13ToV14) Migrate(store storage.Store) error {
return store.BatchWrite(false, func(batch storage.Batch) error {
b, err := checkVersion(m, store)
if err != nil {
return err
}
if b {
fmt.Println("migrate ledger v13 to v14 ")
if err := store.Upgrade(m.StartVersion()); err != nil {
return fmt.Errorf("migrate to %d error: %s", m.EndVersion(), err)
}
return updateVersion(m, batch)
}
return nil
})
}
func (m MigrationV13ToV14) StartVersion() int {
return 13
}
func (m MigrationV13ToV14) EndVersion() int {
return 14
}
type bytesKV struct {
key []byte
value []byte
}
type MigrationV14ToV15 struct {
}
func (m MigrationV14ToV15) Migrate(store storage.Store) error {
return store.BatchWrite(false, func(batch storage.Batch) error {
b, err := checkVersion(m, store)
if err != nil {
return err
}
if b {
fmt.Println("migrate ledger v14 to v15 ")
cs := make([]bytesKV, 0)
prefix, _ := storage.GetKeyOfParts(storage.KeyPrefixTrieVMStorage)
if err := store.Iterator(prefix, nil, func(k, v []byte) error {
//fmt.Println("==key ", k)
key := make([]byte, len(k))
copy(key, k)
value := make([]byte, len(v))
copy(value, v)
c := bytesKV{
key: key,
value: value,
}
cs = append(cs, c)
return nil
}); err != nil {
return err
}
for _, c := range cs {
contractAddrByte := c.key[1 : 1+types.AddressSize]
contractAddr, err := types.BytesToAddress(contractAddrByte)
if err != nil {
return fmt.Errorf("%s is not address ", contractAddrByte)
}
newKey := make([]byte, 0)
newKey = append(newKey, byte(storage.KeyPrefixVMStorage))
if !contractaddress.IsContractAddress(contractAddr) {
newKey = append(newKey, contractaddress.SettlementAddress.Bytes()...)
newKey = append(newKey, c.key[1:]...)
if err := batch.Put(newKey, c.value); err != nil {
return err
}
fmt.Printf("%s is not contract address \n", contractAddr.String())
} else {
newKey = append(newKey, contractAddr.Bytes()...)
newKey = append(newKey, c.key[1:]...)
if err := batch.Put(newKey, c.value); err != nil {
return err
}
}
}
return updateVersion(m, batch)
}
return nil
})
}
func (m MigrationV14ToV15) StartVersion() int {
return 14
}
func (m MigrationV14ToV15) EndVersion() int {
return 15
}
type pendingKV struct {
key *types.PendingKey
value []byte
}
type MigrationV15ToV16 struct {
}
func (m MigrationV15ToV16) Migrate(store storage.Store) error {
b, err := checkVersion(m, store)
if err != nil {
return err
}
if b {
fmt.Println("migrate ledger v15 to v16 ")
count := 0
reset := false
bs := make([]bytesKV, 0)
pendingKvs := make([]*pendingKV, 0)
// get all pending infos from db
prefix, _ := storage.GetKeyOfParts(storage.KeyPrefixPending)
err := store.Iterator(prefix, nil, func(k, v []byte) error {
key := make([]byte, len(k))
copy(key, k)
value := make([]byte, len(v))
copy(value, v)
c := bytesKV{
key: key,
value: value,
}
bs = append(bs, c)
pk := new(types.PendingKey)
if err := pk.Deserialize(key[1:]); err != nil {
if _, err := pk.UnmarshalMsg(key[1:]); err != nil {
return fmt.Errorf("pendingKey unmarshalMsg err: %s", err)
}
reset = true
}
pkv := &pendingKV{
key: pk,
value: value,
}
pendingKvs = append(pendingKvs, pkv)
return nil
})
if err != nil {
return fmt.Errorf("get pendings info err: %s", err)
}
if reset {
// copy all pending infos to another table
err = store.BatchWrite(false, func(batch storage.Batch) error {
for _, b := range bs {
nk := make([]byte, 0)
nk = append(nk, storage.KeyPrefixPendingBackup)
nk = append(nk, b.key[1:]...)
if err := batch.Put(nk, b.value); err != nil {
return err
}
count++
}
return nil
})
if err != nil {
return fmt.Errorf("backup pending table error: %s", err)
}
// reset pending table
if count != len(pendingKvs) {
return fmt.Errorf("pending count err: %d, %d", count, len(pendingKvs))
}
return store.BatchWrite(false, func(batch storage.Batch) error {
for _, b := range bs {
if err := batch.Delete(b.key); err != nil {
return err
}
}
for _, pkv := range pendingKvs {
pKey, err := storage.GetKeyOfParts(storage.KeyPrefixPending, pkv.key)
if err != nil {
return err
}
if err := batch.Put(pKey, pkv.value); err != nil {
return err
}
}
return updateVersion(m, batch)
})
} else {
return store.BatchWrite(false, func(batch storage.Batch) error {
return updateVersion(m, batch)
})
}
}
return nil
}
func (m MigrationV15ToV16) StartVersion() int {
return 15
}
func (m MigrationV15ToV16) EndVersion() int {
return 16
}
func checkVersion(m Migration, s storage.Store) (bool, error) {
v, err := getVersion(s)
if err != nil {
return false, err
}
if int(v) >= m.StartVersion() && int(v) < m.EndVersion() {
return true, nil
}
return false, nil
}
func updateVersion(m Migration, batch storage.Batch) error {
if err := setVersion(int64(m.EndVersion()), batch); err != nil {
return err
}
//fmt.Printf("update ledger version %d to %d successfully\n ", m.StartVersion(), m.EndVersion())
return nil
}
func getVersion(s storage.Store) (int64, error) {
var i int64
key := []byte{byte(storage.KeyPrefixVersion)}
val, err := s.Get(key)
if err != nil {
if err == storage.KeyNotFound {
return 0, errors.New("version not found")
}
return i, err
}
i, _ = binary.Varint(val)
return i, nil
}
func setVersion(version int64, batch storage.Batch) error {
key := []byte{byte(storage.KeyPrefixVersion)}
buf := make([]byte, binary.MaxVarintLen64)
n := binary.PutVarint(buf, version)
return batch.Put(key, buf[:n])
}