Esempio n. 1
0
// FilterTransactionsByAddress returns all transactions currently in the
// mempool that either create an output to the passed address or spend a
// previously created ouput to the address.
func (mp *txMemPool) FilterTransactionsByAddress(addr coinutil.Address) ([]*coinutil.Tx, error) {
	// Protect concurrent access.
	mp.RLock()
	defer mp.RUnlock()

	if txs, exists := mp.addrindex[addr.EncodeAddress()]; exists {
		addressTxs := make([]*coinutil.Tx, 0, len(txs))
		for txHash := range txs {
			if txD, exists := mp.pool[txHash]; exists {
				addressTxs = append(addressTxs, txD.Tx)
			}
		}
		return addressTxs, nil
	}

	return nil, fmt.Errorf("address does not have any transactions in the pool")
}
Esempio n. 2
0
// TotalReceivedForAddr iterates through a wallet's transaction history,
// returning the total amount of bitcoins received for a single wallet
// address.
func (w *Wallet) TotalReceivedForAddr(addr coinutil.Address, minConf int32) (coinutil.Amount, error) {
	syncBlock := w.Manager.SyncedTo()

	var (
		addrStr    = addr.EncodeAddress()
		amount     coinutil.Amount
		stopHeight int32
	)

	if minConf > 0 {
		stopHeight = syncBlock.Height - minConf + 1
	} else {
		stopHeight = -1
	}
	err := w.TxStore.RangeTransactions(0, stopHeight, func(details []wtxmgr.TxDetails) (bool, error) {
		for i := range details {
			detail := &details[i]
			for _, cred := range detail.Credits {
				pkScript := detail.MsgTx.TxOut[cred.Index].PkScript
				_, addrs, _, err := txscript.ExtractPkScriptAddrs(
					pkScript, w.chainParams)
				// An error creating addresses from the output script only
				// indicates a non-standard script, so ignore this credit.
				if err != nil {
					continue
				}
				for _, a := range addrs {
					if addrStr == a.EncodeAddress() {
						amount += cred.Amount
						break
					}
				}
			}
		}
		return false, nil
	})
	return amount, err
}