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move coin selection funcs to new file

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* Will later include proper tx fee calculation based on size after
selection
This commit is contained in:
Olaoluwa Osuntokun 2015-11-05 12:32:15 -08:00
parent 0b66ed24be
commit 980f5e0879
2 changed files with 69 additions and 33 deletions
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69
wallet/coin_select.go Normal file
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@ -0,0 +1,69 @@
package wallet
import (
"encoding/hex"
"github.com/btcsuite/btcd/btcjson"
"github.com/btcsuite/btcd/wire"
"github.com/btcsuite/btcutil"
"github.com/btcsuite/btcutil/coinset"
)
// lnCoin...
// to adhere to the coinset.Coin interface
type lnCoin struct {
hash *wire.ShaHash
index uint32
value btcutil.Amount
pkScript []byte
numConfs int64
valueAge int64
}
func (l *lnCoin) Hash() *wire.ShaHash { return l.hash }
func (l *lnCoin) Index() uint32 { return l.index }
func (l *lnCoin) Value() btcutil.Amount { return l.value }
func (l *lnCoin) PkScript() []byte { return l.pkScript }
func (l *lnCoin) NumConfs() int64 { return l.numConfs }
func (l *lnCoin) ValueAge() int64 { return l.valueAge }
// Ensure lnCoin adheres to the coinset.Coin interface.
var _ coinset.Coin = (*lnCoin)(nil)
// newLnCoin...
func newLnCoin(output *btcjson.ListUnspentResult) (coinset.Coin, error) {
txid, err := wire.NewShaHashFromStr(output.TxID)
if err != nil {
return nil, err
}
pkScript, err := hex.DecodeString(output.ScriptPubKey)
if err != nil {
return nil, err
}
return &lnCoin{
hash: txid,
value: btcutil.Amount(output.Amount),
index: output.Vout,
pkScript: pkScript,
numConfs: output.Confirmations,
// TODO(roasbeef) outpout.Amount should be a int64 :/
valueAge: output.Confirmations * int64(output.Amount),
}, nil
}
// outputsToCoins...
func outputsToCoins(outputs []*btcjson.ListUnspentResult) ([]coinset.Coin, error) {
coins := make([]coinset.Coin, len(outputs))
for i, output := range outputs {
coin, err := newLnCoin(output)
if err != nil {
return nil, err
}
coins[i] = coin
}
return coins, nil
}

33
wallet/wallet.go
View File

@ -223,52 +223,19 @@ type lnCoin struct {
valueAge int64
}
func (l *lnCoin) Hash() *wire.ShaHash { return l.hash }
func (l *lnCoin) Index() uint32 { return l.index }
func (l *lnCoin) Value() btcutil.Amount { return l.value }
func (l *lnCoin) PkScript() []byte { return l.pkScript }
func (l *lnCoin) NumConfs() int64 { return l.numConfs }
func (l *lnCoin) ValueAge() int64 { return l.valueAge }
// Ensure lnCoin adheres to the coinset.Coin interface.
var _ coinset.Coin = (*lnCoin)(nil)
// newLnCoin...
func newLnCoin(output *btcjson.ListUnspentResult) (coinset.Coin, error) {
txid, err := wire.NewShaHashFromStr(output.TxID)
if err != nil {
return nil, err
}
pkScript, err := hex.DecodeString(output.ScriptPubKey)
if err != nil {
return nil, err
}
return &lnCoin{
hash: txid,
value: btcutil.Amount(output.Amount),
index: output.Vout,
pkScript: pkScript,
numConfs: output.Confirmations,
// TODO(roasbeef) outpout.Amount should be a int64 :/
valueAge: output.Confirmations * int64(output.Amount),
}, nil
}
// outputsToCoins...
func outputsToCoins(outputs []*btcjson.ListUnspentResult) ([]coinset.Coin, error) {
coins := make([]coinset.Coin, len(outputs))
for i, output := range outputs {
coin, err := newLnCoin(output)
if err != nil {
return nil, err
}
coins[i] = coin
}
return coins, nil
}
// handleFundingReserveCancel...