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change wallet pointers to references in feebumper

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This commit is contained in:
Adam Jonas 2019-10-10 12:12:28 -04:00
parent 9be6666a4e
commit 66b29848c7
4 changed files with 48 additions and 48 deletions
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8
src/interfaces/wallet.cpp
View File

@ -241,7 +241,7 @@ public:
} }
bool transactionCanBeBumped(const uint256& txid) override bool transactionCanBeBumped(const uint256& txid) override
{ {
return feebumper::TransactionCanBeBumped(m_wallet.get(), txid); return feebumper::TransactionCanBeBumped(*m_wallet.get(), txid);
} }
bool createBumpTransaction(const uint256& txid, bool createBumpTransaction(const uint256& txid,
const CCoinControl& coin_control, const CCoinControl& coin_control,
@ -255,17 +255,17 @@ public:
return feebumper::CreateTotalBumpTransaction(m_wallet.get(), txid, coin_control, total_fee, errors, old_fee, new_fee, mtx) == return feebumper::CreateTotalBumpTransaction(m_wallet.get(), txid, coin_control, total_fee, errors, old_fee, new_fee, mtx) ==
feebumper::Result::OK; feebumper::Result::OK;
} else { } else {
return feebumper::CreateRateBumpTransaction(m_wallet.get(), txid, coin_control, errors, old_fee, new_fee, mtx) == return feebumper::CreateRateBumpTransaction(*m_wallet.get(), txid, coin_control, errors, old_fee, new_fee, mtx) ==
feebumper::Result::OK; feebumper::Result::OK;
} }
} }
bool signBumpTransaction(CMutableTransaction& mtx) override { return feebumper::SignTransaction(m_wallet.get(), mtx); } bool signBumpTransaction(CMutableTransaction& mtx) override { return feebumper::SignTransaction(*m_wallet.get(), mtx); }
bool commitBumpTransaction(const uint256& txid, bool commitBumpTransaction(const uint256& txid,
CMutableTransaction&& mtx, CMutableTransaction&& mtx,
std::vector<std::string>& errors, std::vector<std::string>& errors,
uint256& bumped_txid) override uint256& bumped_txid) override
{ {
return feebumper::CommitTransaction(m_wallet.get(), txid, std::move(mtx), errors, bumped_txid) == return feebumper::CommitTransaction(*m_wallet.get(), txid, std::move(mtx), errors, bumped_txid) ==
feebumper::Result::OK; feebumper::Result::OK;
} }
CTransactionRef getTx(const uint256& txid) override CTransactionRef getTx(const uint256& txid) override

74
src/wallet/feebumper.cpp
View File

@ -17,15 +17,15 @@
//! Check whether transaction has descendant in wallet or mempool, or has been //! Check whether transaction has descendant in wallet or mempool, or has been
//! mined, or conflicts with a mined transaction. Return a feebumper::Result. //! mined, or conflicts with a mined transaction. Return a feebumper::Result.
static feebumper::Result PreconditionChecks(interfaces::Chain::Lock& locked_chain, const CWallet* wallet, const CWalletTx& wtx, std::vector<std::string>& errors) EXCLUSIVE_LOCKS_REQUIRED(wallet->cs_wallet) static feebumper::Result PreconditionChecks(interfaces::Chain::Lock& locked_chain, const CWallet& wallet, const CWalletTx& wtx, std::vector<std::string>& errors) EXCLUSIVE_LOCKS_REQUIRED(wallet.cs_wallet)
{ {
if (wallet->HasWalletSpend(wtx.GetHash())) { if (wallet.HasWalletSpend(wtx.GetHash())) {
errors.push_back("Transaction has descendants in the wallet"); errors.push_back("Transaction has descendants in the wallet");
return feebumper::Result::INVALID_PARAMETER; return feebumper::Result::INVALID_PARAMETER;
} }
{ {
if (wallet->chain().hasDescendantsInMempool(wtx.GetHash())) { if (wallet.chain().hasDescendantsInMempool(wtx.GetHash())) {
errors.push_back("Transaction has descendants in the mempool"); errors.push_back("Transaction has descendants in the mempool");
return feebumper::Result::INVALID_PARAMETER; return feebumper::Result::INVALID_PARAMETER;
} }
@ -48,7 +48,7 @@ static feebumper::Result PreconditionChecks(interfaces::Chain::Lock& locked_chai
// check that original tx consists entirely of our inputs // check that original tx consists entirely of our inputs
// if not, we can't bump the fee, because the wallet has no way of knowing the value of the other inputs (thus the fee) // if not, we can't bump the fee, because the wallet has no way of knowing the value of the other inputs (thus the fee)
if (!wallet->IsAllFromMe(*wtx.tx, ISMINE_SPENDABLE)) { if (!wallet.IsAllFromMe(*wtx.tx, ISMINE_SPENDABLE)) {
errors.push_back("Transaction contains inputs that don't belong to this wallet"); errors.push_back("Transaction contains inputs that don't belong to this wallet");
return feebumper::Result::WALLET_ERROR; return feebumper::Result::WALLET_ERROR;
} }
@ -58,13 +58,13 @@ static feebumper::Result PreconditionChecks(interfaces::Chain::Lock& locked_chai
} }
//! Check if the user provided a valid feeRate //! Check if the user provided a valid feeRate
static feebumper::Result CheckFeeRate(const CWallet* wallet, const CWalletTx& wtx, const CFeeRate& newFeerate, const int64_t maxTxSize, std::vector<std::string>& errors) { static feebumper::Result CheckFeeRate(const CWallet& wallet, const CWalletTx& wtx, const CFeeRate& newFeerate, const int64_t maxTxSize, std::vector<std::string>& errors) {
// check that fee rate is higher than mempool's minimum fee // check that fee rate is higher than mempool's minimum fee
// (no point in bumping fee if we know that the new tx won't be accepted to the mempool) // (no point in bumping fee if we know that the new tx won't be accepted to the mempool)
// This may occur if the user set FeeRate, TotalFee or paytxfee too low, if fallbackfee is too low, or, perhaps, // This may occur if the user set FeeRate, TotalFee or paytxfee too low, if fallbackfee is too low, or, perhaps,
// in a rare situation where the mempool minimum fee increased significantly since the fee estimation just a // in a rare situation where the mempool minimum fee increased significantly since the fee estimation just a
// moment earlier. In this case, we report an error to the user, who may adjust the fee. // moment earlier. In this case, we report an error to the user, who may adjust the fee.
CFeeRate minMempoolFeeRate = wallet->chain().mempoolMinFee(); CFeeRate minMempoolFeeRate = wallet.chain().mempoolMinFee();
if (newFeerate.GetFeePerK() < minMempoolFeeRate.GetFeePerK()) { if (newFeerate.GetFeePerK() < minMempoolFeeRate.GetFeePerK()) {
errors.push_back(strprintf( errors.push_back(strprintf(
@ -76,7 +76,7 @@ static feebumper::Result CheckFeeRate(const CWallet* wallet, const CWalletTx& wt
CAmount new_total_fee = newFeerate.GetFee(maxTxSize); CAmount new_total_fee = newFeerate.GetFee(maxTxSize);
CFeeRate incrementalRelayFee = std::max(wallet->chain().relayIncrementalFee(), CFeeRate(WALLET_INCREMENTAL_RELAY_FEE)); CFeeRate incrementalRelayFee = std::max(wallet.chain().relayIncrementalFee(), CFeeRate(WALLET_INCREMENTAL_RELAY_FEE));
// Given old total fee and transaction size, calculate the old feeRate // Given old total fee and transaction size, calculate the old feeRate
CAmount old_fee = wtx.GetDebit(ISMINE_SPENDABLE) - wtx.tx->GetValueOut(); CAmount old_fee = wtx.GetDebit(ISMINE_SPENDABLE) - wtx.tx->GetValueOut();
@ -91,7 +91,7 @@ static feebumper::Result CheckFeeRate(const CWallet* wallet, const CWalletTx& wt
return feebumper::Result::INVALID_PARAMETER; return feebumper::Result::INVALID_PARAMETER;
} }
CAmount requiredFee = GetRequiredFee(*wallet, maxTxSize); CAmount requiredFee = GetRequiredFee(wallet, maxTxSize);
if (new_total_fee < requiredFee) { if (new_total_fee < requiredFee) {
errors.push_back(strprintf("Insufficient total fee (cannot be less than required fee %s)", errors.push_back(strprintf("Insufficient total fee (cannot be less than required fee %s)",
FormatMoney(requiredFee))); FormatMoney(requiredFee)));
@ -99,7 +99,7 @@ static feebumper::Result CheckFeeRate(const CWallet* wallet, const CWalletTx& wt
} }
// Check that in all cases the new fee doesn't violate maxTxFee // Check that in all cases the new fee doesn't violate maxTxFee
const CAmount max_tx_fee = wallet->m_default_max_tx_fee; const CAmount max_tx_fee = wallet.m_default_max_tx_fee;
if (new_total_fee > max_tx_fee) { if (new_total_fee > max_tx_fee) {
errors.push_back(strprintf("Specified or calculated fee %s is too high (cannot be higher than -maxtxfee %s)", errors.push_back(strprintf("Specified or calculated fee %s is too high (cannot be higher than -maxtxfee %s)",
FormatMoney(new_total_fee), FormatMoney(max_tx_fee))); FormatMoney(new_total_fee), FormatMoney(max_tx_fee)));
@ -109,7 +109,7 @@ static feebumper::Result CheckFeeRate(const CWallet* wallet, const CWalletTx& wt
return feebumper::Result::OK; return feebumper::Result::OK;
} }
static CFeeRate EstimateFeeRate(CWallet* wallet, const CWalletTx& wtx, CCoinControl& coin_control, CAmount& old_fee) static CFeeRate EstimateFeeRate(const CWallet& wallet, const CWalletTx& wtx, CCoinControl& coin_control, CAmount& old_fee)
{ {
// Get the fee rate of the original transaction. This is calculated from // Get the fee rate of the original transaction. This is calculated from
// the tx fee/vsize, so it may have been rounded down. Add 1 satoshi to the // the tx fee/vsize, so it may have been rounded down. Add 1 satoshi to the
@ -126,12 +126,12 @@ static CFeeRate EstimateFeeRate(CWallet* wallet, const CWalletTx& wtx, CCoinCont
// aware of. This ensures we're over the required relay fee rate // aware of. This ensures we're over the required relay fee rate
// (BIP 125 rule 4). The replacement tx will be at least as large as the // (BIP 125 rule 4). The replacement tx will be at least as large as the
// original tx, so the total fee will be greater (BIP 125 rule 3) // original tx, so the total fee will be greater (BIP 125 rule 3)
CFeeRate node_incremental_relay_fee = wallet->chain().relayIncrementalFee(); CFeeRate node_incremental_relay_fee = wallet.chain().relayIncrementalFee();
CFeeRate wallet_incremental_relay_fee = CFeeRate(WALLET_INCREMENTAL_RELAY_FEE); CFeeRate wallet_incremental_relay_fee = CFeeRate(WALLET_INCREMENTAL_RELAY_FEE);
feerate += std::max(node_incremental_relay_fee, wallet_incremental_relay_fee); feerate += std::max(node_incremental_relay_fee, wallet_incremental_relay_fee);
// Fee rate must also be at least the wallet's GetMinimumFeeRate // Fee rate must also be at least the wallet's GetMinimumFeeRate
CFeeRate min_feerate(GetMinimumFeeRate(*wallet, coin_control, /* feeCalc */ nullptr)); CFeeRate min_feerate(GetMinimumFeeRate(wallet, coin_control, /* feeCalc */ nullptr));
// Set the required fee rate for the replacement transaction in coin control. // Set the required fee rate for the replacement transaction in coin control.
return std::max(feerate, min_feerate); return std::max(feerate, min_feerate);
@ -139,11 +139,11 @@ static CFeeRate EstimateFeeRate(CWallet* wallet, const CWalletTx& wtx, CCoinCont
namespace feebumper { namespace feebumper {
bool TransactionCanBeBumped(const CWallet* wallet, const uint256& txid) bool TransactionCanBeBumped(const CWallet& wallet, const uint256& txid)
{ {
auto locked_chain = wallet->chain().lock(); auto locked_chain = wallet.chain().lock();
LOCK(wallet->cs_wallet); LOCK(wallet.cs_wallet);
const CWalletTx* wtx = wallet->GetWalletTx(txid); const CWalletTx* wtx = wallet.GetWalletTx(txid);
if (wtx == nullptr) return false; if (wtx == nullptr) return false;
std::vector<std::string> errors_dummy; std::vector<std::string> errors_dummy;
@ -166,7 +166,7 @@ Result CreateTotalBumpTransaction(const CWallet* wallet, const uint256& txid, co
} }
const CWalletTx& wtx = it->second; const CWalletTx& wtx = it->second;
Result result = PreconditionChecks(*locked_chain, wallet, wtx, errors); Result result = PreconditionChecks(*locked_chain, *wallet, wtx, errors);
if (result != Result::OK) { if (result != Result::OK) {
return result; return result;
} }
@ -276,17 +276,17 @@ Result CreateTotalBumpTransaction(const CWallet* wallet, const uint256& txid, co
} }
Result CreateRateBumpTransaction(CWallet* wallet, const uint256& txid, const CCoinControl& coin_control, std::vector<std::string>& errors, Result CreateRateBumpTransaction(CWallet& wallet, const uint256& txid, const CCoinControl& coin_control, std::vector<std::string>& errors,
CAmount& old_fee, CAmount& new_fee, CMutableTransaction& mtx) CAmount& old_fee, CAmount& new_fee, CMutableTransaction& mtx)
{ {
// We are going to modify coin control later, copy to re-use // We are going to modify coin control later, copy to re-use
CCoinControl new_coin_control(coin_control); CCoinControl new_coin_control(coin_control);
auto locked_chain = wallet->chain().lock(); auto locked_chain = wallet.chain().lock();
LOCK(wallet->cs_wallet); LOCK(wallet.cs_wallet);
errors.clear(); errors.clear();
auto it = wallet->mapWallet.find(txid); auto it = wallet.mapWallet.find(txid);
if (it == wallet->mapWallet.end()) { if (it == wallet.mapWallet.end()) {
errors.push_back("Invalid or non-wallet transaction id"); errors.push_back("Invalid or non-wallet transaction id");
return Result::INVALID_ADDRESS_OR_KEY; return Result::INVALID_ADDRESS_OR_KEY;
} }
@ -300,7 +300,7 @@ Result CreateRateBumpTransaction(CWallet* wallet, const uint256& txid, const CCo
// Fill in recipients(and preserve a single change key if there is one) // Fill in recipients(and preserve a single change key if there is one)
std::vector<CRecipient> recipients; std::vector<CRecipient> recipients;
for (const auto& output : wtx.tx->vout) { for (const auto& output : wtx.tx->vout) {
if (!wallet->IsChange(output)) { if (!wallet.IsChange(output)) {
CRecipient recipient = {output.scriptPubKey, output.nValue, false}; CRecipient recipient = {output.scriptPubKey, output.nValue, false};
recipients.push_back(recipient); recipients.push_back(recipient);
} else { } else {
@ -313,7 +313,7 @@ Result CreateRateBumpTransaction(CWallet* wallet, const uint256& txid, const CCo
if (coin_control.m_feerate) { if (coin_control.m_feerate) {
// The user provided a feeRate argument. // The user provided a feeRate argument.
// We calculate this here to avoid compiler warning on the cs_wallet lock // We calculate this here to avoid compiler warning on the cs_wallet lock
const int64_t maxTxSize = CalculateMaximumSignedTxSize(*wtx.tx, wallet); const int64_t maxTxSize = CalculateMaximumSignedTxSize(*wtx.tx, &wallet);
Result res = CheckFeeRate(wallet, wtx, *new_coin_control.m_feerate, maxTxSize, errors); Result res = CheckFeeRate(wallet, wtx, *new_coin_control.m_feerate, maxTxSize, errors);
if (res != Result::OK) { if (res != Result::OK) {
return res; return res;
@ -342,7 +342,7 @@ Result CreateRateBumpTransaction(CWallet* wallet, const uint256& txid, const CCo
CAmount fee_ret; CAmount fee_ret;
int change_pos_in_out = -1; // No requested location for change int change_pos_in_out = -1; // No requested location for change
std::string fail_reason; std::string fail_reason;
if (!wallet->CreateTransaction(*locked_chain, recipients, tx_new, fee_ret, change_pos_in_out, fail_reason, new_coin_control, false)) { if (!wallet.CreateTransaction(*locked_chain, recipients, tx_new, fee_ret, change_pos_in_out, fail_reason, new_coin_control, false)) {
errors.push_back("Unable to create transaction: " + fail_reason); errors.push_back("Unable to create transaction: " + fail_reason);
return Result::WALLET_ERROR; return Result::WALLET_ERROR;
} }
@ -353,7 +353,7 @@ Result CreateRateBumpTransaction(CWallet* wallet, const uint256& txid, const CCo
// Write back transaction // Write back transaction
mtx = CMutableTransaction(*tx_new); mtx = CMutableTransaction(*tx_new);
// Mark new tx not replaceable, if requested. // Mark new tx not replaceable, if requested.
if (!coin_control.m_signal_bip125_rbf.get_value_or(wallet->m_signal_rbf)) { if (!coin_control.m_signal_bip125_rbf.get_value_or(wallet.m_signal_rbf)) {
for (auto& input : mtx.vin) { for (auto& input : mtx.vin) {
if (input.nSequence < 0xfffffffe) input.nSequence = 0xfffffffe; if (input.nSequence < 0xfffffffe) input.nSequence = 0xfffffffe;
} }
@ -362,21 +362,21 @@ Result CreateRateBumpTransaction(CWallet* wallet, const uint256& txid, const CCo
return Result::OK; return Result::OK;
} }
bool SignTransaction(CWallet* wallet, CMutableTransaction& mtx) { bool SignTransaction(CWallet& wallet, CMutableTransaction& mtx) {
auto locked_chain = wallet->chain().lock(); auto locked_chain = wallet.chain().lock();
LOCK(wallet->cs_wallet); LOCK(wallet.cs_wallet);
return wallet->SignTransaction(mtx); return wallet.SignTransaction(mtx);
} }
Result CommitTransaction(CWallet* wallet, const uint256& txid, CMutableTransaction&& mtx, std::vector<std::string>& errors, uint256& bumped_txid) Result CommitTransaction(CWallet& wallet, const uint256& txid, CMutableTransaction&& mtx, std::vector<std::string>& errors, uint256& bumped_txid)
{ {
auto locked_chain = wallet->chain().lock(); auto locked_chain = wallet.chain().lock();
LOCK(wallet->cs_wallet); LOCK(wallet.cs_wallet);
if (!errors.empty()) { if (!errors.empty()) {
return Result::MISC_ERROR; return Result::MISC_ERROR;
} }
auto it = txid.IsNull() ? wallet->mapWallet.end() : wallet->mapWallet.find(txid); auto it = txid.IsNull() ? wallet.mapWallet.end() : wallet.mapWallet.find(txid);
if (it == wallet->mapWallet.end()) { if (it == wallet.mapWallet.end()) {
errors.push_back("Invalid or non-wallet transaction id"); errors.push_back("Invalid or non-wallet transaction id");
return Result::MISC_ERROR; return Result::MISC_ERROR;
} }
@ -394,7 +394,7 @@ Result CommitTransaction(CWallet* wallet, const uint256& txid, CMutableTransacti
mapValue["replaces_txid"] = oldWtx.GetHash().ToString(); mapValue["replaces_txid"] = oldWtx.GetHash().ToString();
CValidationState state; CValidationState state;
if (!wallet->CommitTransaction(tx, std::move(mapValue), oldWtx.vOrderForm, state)) { if (!wallet.CommitTransaction(tx, std::move(mapValue), oldWtx.vOrderForm, state)) {
// NOTE: CommitTransaction never returns false, so this should never happen. // NOTE: CommitTransaction never returns false, so this should never happen.
errors.push_back(strprintf("The transaction was rejected: %s", FormatStateMessage(state))); errors.push_back(strprintf("The transaction was rejected: %s", FormatStateMessage(state)));
return Result::WALLET_ERROR; return Result::WALLET_ERROR;
@ -408,7 +408,7 @@ Result CommitTransaction(CWallet* wallet, const uint256& txid, CMutableTransacti
} }
// mark the original tx as bumped // mark the original tx as bumped
if (!wallet->MarkReplaced(oldWtx.GetHash(), bumped_txid)) { if (!wallet.MarkReplaced(oldWtx.GetHash(), bumped_txid)) {
// TODO: see if JSON-RPC has a standard way of returning a response // TODO: see if JSON-RPC has a standard way of returning a response
// along with an exception. It would be good to return information about // along with an exception. It would be good to return information about
// wtxBumped to the caller even if marking the original transaction // wtxBumped to the caller even if marking the original transaction

8
src/wallet/feebumper.h
View File

@ -26,7 +26,7 @@ enum class Result
}; };
//! Return whether transaction can be bumped. //! Return whether transaction can be bumped.
bool TransactionCanBeBumped(const CWallet* wallet, const uint256& txid); bool TransactionCanBeBumped(const CWallet& wallet, const uint256& txid);
//! Create bumpfee transaction based on total amount. //! Create bumpfee transaction based on total amount.
Result CreateTotalBumpTransaction(const CWallet* wallet, Result CreateTotalBumpTransaction(const CWallet* wallet,
@ -39,7 +39,7 @@ Result CreateTotalBumpTransaction(const CWallet* wallet,
CMutableTransaction& mtx); CMutableTransaction& mtx);
//! Create bumpfee transaction based on feerate estimates. //! Create bumpfee transaction based on feerate estimates.
Result CreateRateBumpTransaction(CWallet* wallet, Result CreateRateBumpTransaction(CWallet& wallet,
const uint256& txid, const uint256& txid,
const CCoinControl& coin_control, const CCoinControl& coin_control,
std::vector<std::string>& errors, std::vector<std::string>& errors,
@ -50,13 +50,13 @@ Result CreateRateBumpTransaction(CWallet* wallet,
//! Sign the new transaction, //! Sign the new transaction,
//! @return false if the tx couldn't be found or if it was //! @return false if the tx couldn't be found or if it was
//! impossible to create the signature(s) //! impossible to create the signature(s)
bool SignTransaction(CWallet* wallet, CMutableTransaction& mtx); bool SignTransaction(CWallet& wallet, CMutableTransaction& mtx);
//! Commit the bumpfee transaction. //! Commit the bumpfee transaction.
//! @return success in case of CWallet::CommitTransaction was successful, //! @return success in case of CWallet::CommitTransaction was successful,
//! but sets errors if the tx could not be added to the mempool (will try later) //! but sets errors if the tx could not be added to the mempool (will try later)
//! or if the old transaction could not be marked as replaced. //! or if the old transaction could not be marked as replaced.
Result CommitTransaction(CWallet* wallet, Result CommitTransaction(CWallet& wallet,
const uint256& txid, const uint256& txid,
CMutableTransaction&& mtx, CMutableTransaction&& mtx,
std::vector<std::string>& errors, std::vector<std::string>& errors,

6
src/wallet/rpcwallet.cpp
View File

@ -3417,7 +3417,7 @@ static UniValue bumpfee(const JSONRPCRequest& request)
res = feebumper::CreateTotalBumpTransaction(pwallet, hash, coin_control, totalFee, errors, old_fee, new_fee, mtx); res = feebumper::CreateTotalBumpTransaction(pwallet, hash, coin_control, totalFee, errors, old_fee, new_fee, mtx);
} else { } else {
// Targeting feerate bump. // Targeting feerate bump.
res = feebumper::CreateRateBumpTransaction(pwallet, hash, coin_control, errors, old_fee, new_fee, mtx); res = feebumper::CreateRateBumpTransaction(*pwallet, hash, coin_control, errors, old_fee, new_fee, mtx);
} }
if (res != feebumper::Result::OK) { if (res != feebumper::Result::OK) {
switch(res) { switch(res) {
@ -3440,12 +3440,12 @@ static UniValue bumpfee(const JSONRPCRequest& request)
} }
// sign bumped transaction // sign bumped transaction
if (!feebumper::SignTransaction(pwallet, mtx)) { if (!feebumper::SignTransaction(*pwallet, mtx)) {
throw JSONRPCError(RPC_WALLET_ERROR, "Can't sign transaction."); throw JSONRPCError(RPC_WALLET_ERROR, "Can't sign transaction.");
} }
// commit the bumped transaction // commit the bumped transaction
uint256 txid; uint256 txid;
if (feebumper::CommitTransaction(pwallet, hash, std::move(mtx), errors, txid) != feebumper::Result::OK) { if (feebumper::CommitTransaction(*pwallet, hash, std::move(mtx), errors, txid) != feebumper::Result::OK) {
throw JSONRPCError(RPC_WALLET_ERROR, errors[0]); throw JSONRPCError(RPC_WALLET_ERROR, errors[0]);
} }
UniValue result(UniValue::VOBJ); UniValue result(UniValue::VOBJ);