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check for already known txs (due to reorg?)

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This commit is contained in:
Tadge Dryja 2016-01-22 01:41:08 -08:00
parent fbc424492d
commit 01c35e62ab
3 changed files with 24 additions and 9 deletions
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6
uspv/eight333.go
View file

@ -368,7 +368,7 @@ func (s *SPVCon) AskForMerkBlocks(current, last int32) error {
var hdr wire.BlockHeader
// if last is 0, that means go as far as we can
if last == 0 {
n, err := s.headerFile.Seek(-80, os.SEEK_END)
n, err := s.headerFile.Seek(0, os.SEEK_END)
if err != nil {
return err
}
@ -392,8 +392,8 @@ func (s *SPVCon) AskForMerkBlocks(current, last int32) error {
}
// loop through all heights where we want merkleblocks.
for current < last {
// check if we need to update filter... every 5 new inputs...?
if track+4 < len(s.TS.Utxos) {
// check if we need to update filter... diff of 5 utxos...?
if track < len(s.TS.Utxos)-4 || track > len(s.TS.Utxos)+4 {
track = len(s.TS.Utxos)
filt, err := s.TS.GimmeFilter()
if err != nil {

8
uspv/txstore.go
View file

@ -140,11 +140,15 @@ func (t *TxStore) AbsorbTx(tx *wire.MsgTx, height int32) error {
newop.Hash = tx.TxSha()
newop.Index = uint32(i)
newu.Op = newop
err := newu.SaveToDB(t.StateDB)
dupe, err := newu.SaveToDB(t.StateDB)
if err != nil {
return err
}
t.Utxos = append(t.Utxos, newu)
if !dupe { // only save to DB if new txid
t.Utxos = append(t.Utxos, newu)
} else {
fmt.Printf("...dupe ")
}
break
}
}

19
uspv/utxodb.go
View file

@ -7,6 +7,7 @@ import (
"github.com/btcsuite/btcd/wire"
"github.com/btcsuite/btcutil"
"github.com/btcsuite/btcutil/hdkeychain"
"github.com/boltdb/bolt"
)
@ -50,7 +51,7 @@ func (ts *TxStore) NewAdr() (*btcutil.AddressPubKeyHash, error) {
return nil, fmt.Errorf("nil param")
}
n := uint32(len(ts.Adrs))
priv, err := ts.rootPrivKey.Child(n) // + hdkeychain.HardenedKeyStart)
priv, err := ts.rootPrivKey.Child(n + hdkeychain.HardenedKeyStart)
if err != nil {
return nil, err
}
@ -84,7 +85,7 @@ func (ts *TxStore) NewAdr() (*btcutil.AddressPubKeyHash, error) {
func (ts *TxStore) PopulateAdrs(lastKey uint32) error {
for k := uint32(0); k < lastKey; k++ {
priv, err := ts.rootPrivKey.Child(k) // + hdkeychain.HardenedKeyStart)
priv, err := ts.rootPrivKey.Child(k + hdkeychain.HardenedKeyStart)
if err != nil {
return err
}
@ -99,16 +100,26 @@ func (ts *TxStore) PopulateAdrs(lastKey uint32) error {
return nil
}
func (u *Utxo) SaveToDB(dbx *bolt.DB) error {
return dbx.Update(func(tx *bolt.Tx) error {
// SaveToDB write a utxo to disk, and returns true if it's a dupe
func (u *Utxo) SaveToDB(dbx *bolt.DB) (bool, error) {
var dupe bool
err := dbx.Update(func(tx *bolt.Tx) error {
duf := tx.Bucket(BKTUtxos)
b, err := u.ToBytes()
if err != nil {
return err
}
if duf.Get(b[:36]) != nil { // already have tx
dupe = true
return nil
}
// key : val is txid:everything else
return duf.Put(b[:36], b[36:])
})
if err != nil {
return false, err
}
return dupe, nil
}
func (ts *TxStore) MarkSpent(op *wire.OutPoint, h int32, stx *wire.MsgTx) error {