Improve the performace of LeaseOutput

docs/release-notes/release-notes-0.18.3.md

@@ -151,6 +151,11 @@ commitment when the channel was force closed.
 * [Allow](https://github.com/lightningnetwork/lnd/pull/8845) multiple etcd hosts
   to be specified in db.etcd.host.
 
+* Improved the internal [`LeaseOutput`
+  method](https://github.com/lightningnetwork/lnd/pull/8961) to be more
+  efficient, which improves the performance of related RPC calls such as
+  `LeaseOutput`, `SendCoins`, and PSBT funding process. 
+
 ## RPC Updates
 
 * [`xImportMissionControl`](https://github.com/lightningnetwork/lnd/pull/8779) 

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/btcsuite/btcd/btcutil/psbt v1.1.8
 	github.com/btcsuite/btcd/chaincfg/chainhash v1.1.0
 	github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f
-	github.com/btcsuite/btcwallet v0.16.10-0.20240718224643-db3a4a2543bd
+	github.com/btcsuite/btcwallet v0.16.10-0.20240809133323-7d3434c65ae2
 	github.com/btcsuite/btcwallet/wallet/txauthor v1.3.4
 	github.com/btcsuite/btcwallet/wallet/txrules v1.2.1
 	github.com/btcsuite/btcwallet/walletdb v1.4.2

go.sum

@@ -92,8 +92,8 @@ github.com/btcsuite/btcd/chaincfg/chainhash v1.1.0/go.mod h1:7SFka0XMvUgj3hfZtyd
 github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f h1:bAs4lUbRJpnnkd9VhRV3jjAVU7DJVjMaK+IsvSeZvFo=
 github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufoqS23FtqVCzL0ZqgP5MqXbb4fg/WgDys70nA=
 github.com/btcsuite/btcutil v0.0.0-20190425235716-9e5f4b9a998d/go.mod h1:+5NJ2+qvTyV9exUAL/rxXi3DcLg2Ts+ymUAY5y4NvMg=
-github.com/btcsuite/btcwallet v0.16.10-0.20240718224643-db3a4a2543bd h1:QDb8foTCRoXrfoZVEzSYgSde16MJh4gCtCin8OCS0kI=
-github.com/btcsuite/btcwallet v0.16.10-0.20240718224643-db3a4a2543bd/go.mod h1:X2xDre+j1QphTRo54y2TikUzeSvreL1t1aMXrD8Kc5A=
+github.com/btcsuite/btcwallet v0.16.10-0.20240809133323-7d3434c65ae2 h1:qa4Avm7p97JroZZyMJADbEb9u853pjleJYSeitENvLc=
+github.com/btcsuite/btcwallet v0.16.10-0.20240809133323-7d3434c65ae2/go.mod h1:X2xDre+j1QphTRo54y2TikUzeSvreL1t1aMXrD8Kc5A=
 github.com/btcsuite/btcwallet/wallet/txauthor v1.3.4 h1:poyHFf7+5+RdxNp5r2T6IBRD7RyraUsYARYbp/7t4D8=
 github.com/btcsuite/btcwallet/wallet/txauthor v1.3.4/go.mod h1:GETGDQuyq+VFfH1S/+/7slLM/9aNa4l7P4ejX6dJfb0=
 github.com/btcsuite/btcwallet/wallet/txrules v1.2.1 h1:UZo7YRzdHbwhK7Rhv3PO9bXgTxiOH45edK5qdsdiatk=

itest/lnd_hold_invoice_force_test.go

@@ -95,10 +95,6 @@ func testHoldInvoiceForceClose(ht *lntest.HarnessTest) {
 	// We first mine enough blocks to trigger an invoice cancelation.
 	ht.MineBlocks(int(blocksTillCancel))
 
-	// Wait for the nodes to be synced.
-	ht.WaitForBlockchainSync(alice)
-	ht.WaitForBlockchainSync(bob)
-
 	// Check that the invoice is canceled by Bob.
 	err := wait.NoError(func() error {
 		inv := bob.RPC.LookupInvoice(payHash[:])
@@ -135,10 +131,6 @@ func testHoldInvoiceForceClose(ht *lntest.HarnessTest) {
 	// invoice cancelation message was received by Alice.
 	ht.MineBlocks(int(blocksTillForce - blocksTillCancel))
 
-	// Wait for the nodes to be synced.
-	ht.WaitForBlockchainSync(alice)
-	ht.WaitForBlockchainSync(bob)
-
 	// Check that Alice has not closed the channel because there are no
 	// outgoing HTLCs in her channel as the only HTLC has already been
 	// canceled.

itest/lnd_psbt_test.go

@@ -1578,7 +1578,6 @@ func sendAllCoinsToAddrType(ht *lntest.HarnessTest,
 	})
 
 	ht.MineBlocksAndAssertNumTxes(1, 1)
-	ht.WaitForBlockchainSync(hn)
 }
 
 // testPsbtChanFundingFailFlow tests the failing of a funding flow by the

itest/lnd_route_blinding_test.go

@@ -852,10 +852,6 @@ func testErrorHandlingOnChainFailure(ht *lntest.HarnessTest) {
 	ht.AssertNumPendingSweeps(ht.Bob, 0)
 	ht.MineBlocksAndAssertNumTxes(1, 1)
 
-	// Assert that the HTLC has cleared.
-	ht.WaitForBlockchainSync(ht.Bob)
-	ht.WaitForBlockchainSync(ht.Alice)
-
 	ht.AssertHTLCNotActive(ht.Bob, testCase.channels[0], hash[:])
 	ht.AssertHTLCNotActive(ht.Alice, testCase.channels[0], hash[:])
 

lnrpc/walletrpc/psbt.go

@@ -56,7 +56,13 @@ func lockInputs(w lnwallet.WalletController,
 			},
 		}
 
-		expiration, pkScript, value, err := w.LeaseOutput(
+		// Get the details about this outpoint.
+		utxo, err := w.FetchOutpointInfo(&lock.Outpoint)
+		if err != nil {
+			return nil, fmt.Errorf("fetch outpoint info: %w", err)
+		}
+
+		expiration, err := w.LeaseOutput(
 			lock.LockID, lock.Outpoint,
 			chanfunding.DefaultLockDuration,
 		)
@@ -80,8 +86,8 @@ func lockInputs(w lnwallet.WalletController,
 		}
 
 		lock.Expiration = expiration
-		lock.PkScript = pkScript
-		lock.Value = int64(value)
+		lock.PkScript = utxo.PkScript
+		lock.Value = int64(utxo.Value)
 		locks[idx] = lock
 	}
 

lnrpc/walletrpc/walletkit_server.go

@@ -490,7 +490,7 @@ func (w *WalletKit) LeaseOutput(ctx context.Context,
 	// other concurrent processes attempting to lease the same UTXO.
 	var expiration time.Time
 	err = w.cfg.CoinSelectionLocker.WithCoinSelectLock(func() error {
-		expiration, _, _, err = w.cfg.Wallet.LeaseOutput(
+		expiration, err = w.cfg.Wallet.LeaseOutput(
 			lockID, *op, duration,
 		)
 		return err
@@ -1142,7 +1142,7 @@ func (w *WalletKit) sweepNewInput(op *wire.OutPoint, currentHeight uint32,
 	//
 	// We'll gather all of the information required by the UtxoSweeper in
 	// order to sweep the output.
-	utxo, err := w.cfg.Wallet.FetchInputInfo(op)
+	utxo, err := w.cfg.Wallet.FetchOutpointInfo(op)
 	if err != nil {
 		return err
 	}

lntest/mock/walletcontroller.go

@@ -43,9 +43,9 @@ func (w *WalletController) BackEnd() string {
 	return "mock"
 }
 
-// FetchInputInfo will be called to get info about the inputs to the funding
+// FetchOutpointInfo will be called to get info about the inputs to the funding
 // transaction.
-func (w *WalletController) FetchInputInfo(
+func (w *WalletController) FetchOutpointInfo(
 	prevOut *wire.OutPoint) (*lnwallet.Utxo, error) {
 
 	utxo := &lnwallet.Utxo{
@@ -195,9 +195,9 @@ func (w *WalletController) ListTransactionDetails(int32, int32,
 
 // LeaseOutput returns the current time and a nil error.
 func (w *WalletController) LeaseOutput(wtxmgr.LockID, wire.OutPoint,
-	time.Duration) (time.Time, []byte, btcutil.Amount, error) {
+	time.Duration) (time.Time, error) {
 
-	return time.Now(), nil, 0, nil
+	return time.Now(), nil
 }
 
 // ReleaseOutput currently does nothing.
@@ -292,3 +292,11 @@ func (w *WalletController) RemoveDescendants(*wire.MsgTx) error {
 func (w *WalletController) CheckMempoolAcceptance(tx *wire.MsgTx) error {
 	return nil
 }
+
+// FetchDerivationInfo queries for the wallet's knowledge of the passed
+// pkScript and constructs the derivation info and returns it.
+func (w *WalletController) FetchDerivationInfo(
+	pkScript []byte) (*psbt.Bip32Derivation, error) {
+
+	return nil, nil
+}

lnwallet/btcwallet/btcwallet.go

@@ -1079,36 +1079,20 @@ func (b *BtcWallet) CreateSimpleTx(inputs fn.Set[wire.OutPoint],
 //
 // NOTE: This method requires the global coin selection lock to be held.
 func (b *BtcWallet) LeaseOutput(id wtxmgr.LockID, op wire.OutPoint,
-	duration time.Duration) (time.Time, []byte, btcutil.Amount, error) {
+	duration time.Duration) (time.Time, error) {
 
 	// Make sure we don't attempt to double lock an output that's been
 	// locked by the in-memory implementation.
 	if b.wallet.LockedOutpoint(op) {
-		return time.Time{}, nil, 0, wtxmgr.ErrOutputAlreadyLocked
+		return time.Time{}, wtxmgr.ErrOutputAlreadyLocked
 	}
 
 	lockedUntil, err := b.wallet.LeaseOutput(id, op, duration)
 	if err != nil {
-		return time.Time{}, nil, 0, err
+		return time.Time{}, err
 	}
 
-	// Get the pkScript and value for this lock from the list of all leased
-	// outputs.
-	allLeases, err := b.wallet.ListLeasedOutputs()
-	if err != nil {
-		return time.Time{}, nil, 0, err
-	}
-
-	for _, lease := range allLeases {
-		if lease.Outpoint == op {
-			return lockedUntil, lease.PkScript,
-				btcutil.Amount(lease.Value), nil
-		}
-	}
-
-	// We MUST find the leased output in the loop above, otherwise something
-	// is seriously wrong.
-	return time.Time{}, nil, 0, wtxmgr.ErrUnknownOutput
+	return lockedUntil, nil
 }
 
 // ListLeasedOutputs returns a list of all currently locked outputs.

lnwallet/btcwallet/signer.go

@@ -8,6 +8,7 @@ import (
 	"github.com/btcsuite/btcd/btcec/v2/schnorr"
 	"github.com/btcsuite/btcd/btcutil"
 	"github.com/btcsuite/btcd/btcutil/hdkeychain"
+	"github.com/btcsuite/btcd/btcutil/psbt"
 	"github.com/btcsuite/btcd/chaincfg/chainhash"
 	"github.com/btcsuite/btcd/txscript"
 	"github.com/btcsuite/btcd/wire"
@@ -18,18 +19,16 @@ import (
 	"github.com/lightningnetwork/lnd/lnwallet"
 )
 
-// FetchInputInfo queries for the WalletController's knowledge of the passed
+// FetchOutpointInfo queries for the WalletController's knowledge of the passed
 // outpoint. If the base wallet determines this output is under its control,
 // then the original txout should be returned. Otherwise, a non-nil error value
 // of ErrNotMine should be returned instead.
 //
 // This is a part of the WalletController interface.
-func (b *BtcWallet) FetchInputInfo(prevOut *wire.OutPoint) (*lnwallet.Utxo,
+func (b *BtcWallet) FetchOutpointInfo(prevOut *wire.OutPoint) (*lnwallet.Utxo,
 	error) {
 
-	prevTx, txOut, bip32, confirmations, err := b.wallet.FetchInputInfo(
-		prevOut,
-	)
+	prevTx, txOut, confirmations, err := b.wallet.FetchOutpointInfo(prevOut)
 	if err != nil {
 		return nil, err
 	}
@@ -51,11 +50,18 @@ func (b *BtcWallet) FetchInputInfo(prevOut *wire.OutPoint) (*lnwallet.Utxo,
 		PkScript:      txOut.PkScript,
 		Confirmations: confirmations,
 		OutPoint:      *prevOut,
-		Derivation:    bip32,
 		PrevTx:        prevTx,
 	}, nil
 }
 
+// FetchDerivationInfo queries for the wallet's knowledge of the passed
+// pkScript and constructs the derivation info and returns it.
+func (b *BtcWallet) FetchDerivationInfo(
+	pkScript []byte) (*psbt.Bip32Derivation, error) {
+
+	return b.wallet.FetchDerivationInfo(pkScript)
+}
+
 // ScriptForOutput returns the address, witness program and redeem script for a
 // given UTXO. An error is returned if the UTXO does not belong to our wallet or
 // it is not a managed pubKey address.

lnwallet/chanfunding/assembler.go

@@ -44,7 +44,7 @@ type OutputLeaser interface {
 	// LeaseOutput leases a target output, rendering it unusable for coin
 	// selection.
 	LeaseOutput(i wtxmgr.LockID, o wire.OutPoint, d time.Duration) (
-		time.Time, []byte, btcutil.Amount, error)
+		time.Time, error)
 
 	// ReleaseOutput releases a target output, allowing it to be used for
 	// coin selection once again.

lnwallet/chanfunding/wallet_assembler.go

@@ -525,7 +525,7 @@ func (w *WalletAssembler) ProvisionChannel(r *Request) (Intent, error) {
 		for _, coin := range selectedCoins {
 			outpoint := coin.OutPoint
 
-			_, _, _, err = w.cfg.CoinLeaser.LeaseOutput(
+			_, err = w.cfg.CoinLeaser.LeaseOutput(
 				LndInternalLockID, outpoint,
 				DefaultReservationTimeout,
 			)

lnwallet/interface.go

@@ -126,8 +126,7 @@ type Utxo struct {
 	Confirmations int64
 	PkScript      []byte
 	wire.OutPoint
-	Derivation *psbt.Bip32Derivation
-	PrevTx     *wire.MsgTx
+	PrevTx *wire.MsgTx
 }
 
 // OutputDetail contains additional information on a destination address.
@@ -227,11 +226,16 @@ type TransactionSubscription interface {
 // behavior of all interface methods in order to ensure identical behavior
 // across all concrete implementations.
 type WalletController interface {
-	// FetchInputInfo queries for the WalletController's knowledge of the
-	// passed outpoint. If the base wallet determines this output is under
-	// its control, then the original txout should be returned.  Otherwise,
-	// a non-nil error value of ErrNotMine should be returned instead.
-	FetchInputInfo(prevOut *wire.OutPoint) (*Utxo, error)
+	// FetchOutpointInfo queries for the WalletController's knowledge of
+	// the passed outpoint. If the base wallet determines this output is
+	// under its control, then the original txout should be returned.
+	// Otherwise, a non-nil error value of ErrNotMine should be returned
+	// instead.
+	FetchOutpointInfo(prevOut *wire.OutPoint) (*Utxo, error)
+
+	// FetchDerivationInfo queries for the wallet's knowledge of the passed
+	// pkScript and constructs the derivation info and returns it.
+	FetchDerivationInfo(pkScript []byte) (*psbt.Bip32Derivation, error)
 
 	// ScriptForOutput returns the address, witness program and redeem
 	// script for a given UTXO. An error is returned if the UTXO does not
@@ -409,8 +413,7 @@ type WalletController interface {
 	//
 	// NOTE: This method requires the global coin selection lock to be held.
 	LeaseOutput(id wtxmgr.LockID, op wire.OutPoint,
-		duration time.Duration) (time.Time, []byte, btcutil.Amount,
-		error)
+		duration time.Duration) (time.Time, error)
 
 	// ReleaseOutput unlocks an output, allowing it to be available for coin
 	// selection if it remains unspent. The ID should match the one used to

lnwallet/mock.go

@@ -45,9 +45,9 @@ func (w *mockWalletController) BackEnd() string {
 	return "mock"
 }
 
-// FetchInputInfo will be called to get info about the inputs to the funding
+// FetchOutpointInfo will be called to get info about the inputs to the funding
 // transaction.
-func (w *mockWalletController) FetchInputInfo(
+func (w *mockWalletController) FetchOutpointInfo(
 	prevOut *wire.OutPoint) (*Utxo, error) {
 
 	utxo := &Utxo{
@@ -201,9 +201,9 @@ func (w *mockWalletController) ListTransactionDetails(int32, int32,
 
 // LeaseOutput returns the current time and a nil error.
 func (w *mockWalletController) LeaseOutput(wtxmgr.LockID, wire.OutPoint,
-	time.Duration) (time.Time, []byte, btcutil.Amount, error) {
+	time.Duration) (time.Time, error) {
 
-	return time.Now(), nil, 0, nil
+	return time.Now(), nil
 }
 
 // ReleaseOutput currently does nothing.
@@ -300,6 +300,14 @@ func (w *mockWalletController) RemoveDescendants(*wire.MsgTx) error {
 	return nil
 }
 
+// FetchDerivationInfo queries for the wallet's knowledge of the passed
+// pkScript and constructs the derivation info and returns it.
+func (w *mockWalletController) FetchDerivationInfo(
+	pkScript []byte) (*psbt.Bip32Derivation, error) {
+
+	return nil, nil
+}
+
 func (w *mockWalletController) CheckMempoolAcceptance(tx *wire.MsgTx) error {
 	return nil
 }