mirrors/lnd
1
0
Fork 0
mirror of https://github.com/lightningnetwork/lnd.git synced 2024-11-19 09:53:54 +01:00
Code Issues Projects Releases Wiki Activity

lnwallet: add ListUnspentWitness for funding tx coin selection

Browse Source
This commit is contained in:
Olaoluwa Osuntokun 2016-05-03 19:47:30 -07:00
parent 0e74672797
commit 4b4c0f73b0
No known key found for this signature in database
GPG Key ID: 9CC5B105D03521A2
1 changed files with 34 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
lnwallet/wallet.go
View File

@ -463,10 +463,10 @@ func (l *LightningWallet) handleFundingReserveRequest(req *initFundingReserveMsg
// insuffcient funds, the other is a notification that the balance has
// been updated make(chan struct{}, 1).
// Find all unlocked unspent outputs with greater than 6 confirmations.
maxConfs := int32(math.MaxInt32)
// Find all unlocked unspent witness outputs with greater than 6
// confirmations.
// TODO(roasbeef): make 6 a config paramter?
unspentOutputs, err := l.ListUnspent(6, maxConfs, nil)
unspentOutputs, err := l.ListUnspentWitness(6)
if err != nil {
l.coinSelectMtx.Unlock()
req.err <- err
@ -1035,6 +1035,37 @@ func (l *LightningWallet) getNextRawKey() (*btcec.PrivateKey, error) {
return pkAddr.PrivKey()
}
// ListUnspentWitness returns a slice of all the unspent outputs the wallet
// controls which pay to witness programs either directly or indirectly.
func (l *LightningWallet) ListUnspentWitness(minConfs int32) ([]*btcjson.ListUnspentResult, error) {
// First, grab all the unfiltered currently unspent outputs.
maxConfs := int32(math.MaxInt32)
unspentOutputs, err := l.ListUnspent(minConfs, maxConfs, nil)
if err != nil {
return nil, err
}
// Next, we'll run through all the regular outputs, only saving those
// which are p2wkh outputs or a p2wsh output nested within a p2sh output.
witnessOutputs := make([]*btcjson.ListUnspentResult, 0, len(unspentOutputs))
for _, output := range unspentOutputs {
pkScript, err := hex.DecodeString(output.ScriptPubKey)
if err != nil {
return nil, err
}
// TODO(roasbeef): this assumes all p2sh outputs returned by
// the wallet are nested p2sh...
if txscript.IsPayToWitnessPubKeyHash(pkScript) ||
txscript.IsPayToScriptHash(pkScript) {
witnessOutputs = append(witnessOutputs, output)
}
}
return witnessOutputs, nil
}
type WaddrmgrEncryptorDecryptor struct {
M *waddrmgr.Manager
}