diff options
| -rw-r--r-- | src/bench/coin_selection.cpp | 2 | ||||
| -rw-r--r-- | src/wallet/spend.cpp | 499 | ||||
| -rw-r--r-- | src/wallet/test/coinselector_tests.cpp | 68 | ||||
| -rw-r--r-- | src/wallet/wallet.h | 4 |
4 files changed, 282 insertions, 291 deletions
diff --git a/src/bench/coin_selection.cpp b/src/bench/coin_selection.cpp index c279a9af2f..5beb833b48 100644 --- a/src/bench/coin_selection.cpp +++ b/src/bench/coin_selection.cpp @@ -56,7 +56,7 @@ static void CoinSelection(benchmark::Bench& bench) bench.run([&] { std::set<CInputCoin> setCoinsRet; CAmount nValueRet; - bool success = wallet.SelectCoinsMinConf(1003 * COIN, filter_standard, coins, setCoinsRet, nValueRet, coin_selection_params); + bool success = wallet.AttemptSelection(1003 * COIN, filter_standard, coins, setCoinsRet, nValueRet, coin_selection_params); assert(success); assert(nValueRet == 1003 * COIN); assert(setCoinsRet.size() == 2); diff --git a/src/wallet/spend.cpp b/src/wallet/spend.cpp index 97fc7acca5..c8ded4c51e 100644 --- a/src/wallet/spend.cpp +++ b/src/wallet/spend.cpp @@ -352,7 +352,7 @@ std::vector<OutputGroup> CWallet::GroupOutputs(const std::vector<COutput>& outpu return groups_out; } -bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const CoinEligibilityFilter& eligibility_filter, std::vector<COutput> coins, +bool CWallet::AttemptSelection(const CAmount& nTargetValue, const CoinEligibilityFilter& eligibility_filter, std::vector<COutput> coins, std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet, const CoinSelectionParams& coin_selection_params) const { setCoinsRet.clear(); @@ -456,32 +456,32 @@ bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAm // If possible, fund the transaction with confirmed UTXOs only. Prefer at least six // confirmations on outputs received from other wallets and only spend confirmed change. - if (SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(1, 6, 0), vCoins, setCoinsRet, nValueRet, coin_selection_params)) return true; - if (SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(1, 1, 0), vCoins, setCoinsRet, nValueRet, coin_selection_params)) return true; + if (AttemptSelection(value_to_select, CoinEligibilityFilter(1, 6, 0), vCoins, setCoinsRet, nValueRet, coin_selection_params)) return true; + if (AttemptSelection(value_to_select, CoinEligibilityFilter(1, 1, 0), vCoins, setCoinsRet, nValueRet, coin_selection_params)) return true; // Fall back to using zero confirmation change (but with as few ancestors in the mempool as // possible) if we cannot fund the transaction otherwise. if (m_spend_zero_conf_change) { - if (SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, 2), vCoins, setCoinsRet, nValueRet, coin_selection_params)) return true; - if (SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, std::min((size_t)4, max_ancestors/3), std::min((size_t)4, max_descendants/3)), + if (AttemptSelection(value_to_select, CoinEligibilityFilter(0, 1, 2), vCoins, setCoinsRet, nValueRet, coin_selection_params)) return true; + if (AttemptSelection(value_to_select, CoinEligibilityFilter(0, 1, std::min((size_t)4, max_ancestors/3), std::min((size_t)4, max_descendants/3)), vCoins, setCoinsRet, nValueRet, coin_selection_params)) { return true; } - if (SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, max_ancestors/2, max_descendants/2), + if (AttemptSelection(value_to_select, CoinEligibilityFilter(0, 1, max_ancestors/2, max_descendants/2), vCoins, setCoinsRet, nValueRet, coin_selection_params)) { return true; } // If partial groups are allowed, relax the requirement of spending OutputGroups (groups // of UTXOs sent to the same address, which are obviously controlled by a single wallet) // in their entirety. - if (SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, max_ancestors-1, max_descendants-1, true /* include_partial_groups */), + if (AttemptSelection(value_to_select, CoinEligibilityFilter(0, 1, max_ancestors-1, max_descendants-1, true /* include_partial_groups */), vCoins, setCoinsRet, nValueRet, coin_selection_params)) { return true; } // Try with unsafe inputs if they are allowed. This may spend unconfirmed outputs // received from other wallets. if (coin_control.m_include_unsafe_inputs - && SelectCoinsMinConf(value_to_select, + && AttemptSelection(value_to_select, CoinEligibilityFilter(0 /* conf_mine */, 0 /* conf_theirs */, max_ancestors-1, max_descendants-1, true /* include_partial_groups */), vCoins, setCoinsRet, nValueRet, coin_selection_params)) { return true; @@ -489,7 +489,7 @@ bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAm // Try with unlimited ancestors/descendants. The transaction will still need to meet // mempool ancestor/descendant policy to be accepted to mempool and broadcasted, but // OutputGroups use heuristics that may overestimate ancestor/descendant counts. - if (!fRejectLongChains && SelectCoinsMinConf(value_to_select, + if (!fRejectLongChains && AttemptSelection(value_to_select, CoinEligibilityFilter(0, 1, std::numeric_limits<uint64_t>::max(), std::numeric_limits<uint64_t>::max(), true /* include_partial_groups */), vCoins, setCoinsRet, nValueRet, coin_selection_params)) { return true; @@ -499,7 +499,7 @@ bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAm return false; }(); - // SelectCoinsMinConf clears setCoinsRet, so add the preset inputs from coin_control to the coinset + // AttemptSelection clears setCoinsRet, so add the preset inputs from coin_control to the coinset util::insert(setCoinsRet, setPresetCoins); // add preset inputs to the total value selected @@ -578,287 +578,266 @@ bool CWallet::CreateTransactionInternal( FeeCalculation& fee_calc_out, bool sign) { - CAmount nValue = 0; + AssertLockHeld(cs_wallet); + + CMutableTransaction txNew; // The resulting transaction that we make + txNew.nLockTime = GetLocktimeForNewTransaction(chain(), GetLastBlockHash(), GetLastBlockHeight()); + + CoinSelectionParams coin_selection_params; // Parameters for coin selection, init with dummy + coin_selection_params.m_avoid_partial_spends = coin_control.m_avoid_partial_spends; + + CAmount recipients_sum = 0; const OutputType change_type = TransactionChangeType(coin_control.m_change_type ? *coin_control.m_change_type : m_default_change_type, vecSend); ReserveDestination reservedest(this, change_type); - unsigned int nSubtractFeeFromAmount = 0; - for (const auto& recipient : vecSend) - { - if (nValue < 0 || recipient.nAmount < 0) - { - error = _("Transaction amounts must not be negative"); - return false; + unsigned int outputs_to_subtract_fee_from = 0; // The number of outputs which we are subtracting the fee from + for (const auto& recipient : vecSend) { + recipients_sum += recipient.nAmount; + + if (recipient.fSubtractFeeFromAmount) { + outputs_to_subtract_fee_from++; + coin_selection_params.m_subtract_fee_outputs = true; } - nValue += recipient.nAmount; + } - if (recipient.fSubtractFeeFromAmount) - nSubtractFeeFromAmount++; + // Create change script that will be used if we need change + // TODO: pass in scriptChange instead of reservedest so + // change transaction isn't always pay-to-bitcoin-address + CScript scriptChange; + + // coin control: send change to custom address + if (!std::get_if<CNoDestination>(&coin_control.destChange)) { + scriptChange = GetScriptForDestination(coin_control.destChange); + } else { // no coin control: send change to newly generated address + // Note: We use a new key here to keep it from being obvious which side is the change. + // The drawback is that by not reusing a previous key, the change may be lost if a + // backup is restored, if the backup doesn't have the new private key for the change. + // If we reused the old key, it would be possible to add code to look for and + // rediscover unknown transactions that were written with keys of ours to recover + // post-backup change. + + // Reserve a new key pair from key pool. If it fails, provide a dummy + // destination in case we don't need change. + CTxDestination dest; + if (!reservedest.GetReservedDestination(dest, true)) { + error = _("Transaction needs a change address, but we can't generate it. Please call keypoolrefill first."); + } + scriptChange = GetScriptForDestination(dest); + // A valid destination implies a change script (and + // vice-versa). An empty change script will abort later, if the + // change keypool ran out, but change is required. + CHECK_NONFATAL(IsValidDestination(dest) != scriptChange.empty()); } - if (vecSend.empty()) - { - error = _("Transaction must have at least one recipient"); - return false; + CTxOut change_prototype_txout(0, scriptChange); + coin_selection_params.change_output_size = GetSerializeSize(change_prototype_txout); + + // Get size of spending the change output + int change_spend_size = CalculateMaximumSignedInputSize(change_prototype_txout, this); + // If the wallet doesn't know how to sign change output, assume p2sh-p2wpkh + // as lower-bound to allow BnB to do it's thing + if (change_spend_size == -1) { + coin_selection_params.change_spend_size = DUMMY_NESTED_P2WPKH_INPUT_SIZE; + } else { + coin_selection_params.change_spend_size = (size_t)change_spend_size; } - CMutableTransaction txNew; + // Set discard feerate + coin_selection_params.m_discard_feerate = GetDiscardRate(*this); + + // Get the fee rate to use effective values in coin selection FeeCalculation feeCalc; - TxSize tx_sizes; - int nBytes; + coin_selection_params.m_effective_feerate = GetMinimumFeeRate(*this, coin_control, &feeCalc); + // Do not, ever, assume that it's fine to change the fee rate if the user has explicitly + // provided one + if (coin_control.m_feerate && coin_selection_params.m_effective_feerate > *coin_control.m_feerate) { + error = strprintf(_("Fee rate (%s) is lower than the minimum fee rate setting (%s)"), coin_control.m_feerate->ToString(FeeEstimateMode::SAT_VB), coin_selection_params.m_effective_feerate.ToString(FeeEstimateMode::SAT_VB)); + return false; + } + if (feeCalc.reason == FeeReason::FALLBACK && !m_allow_fallback_fee) { + // eventually allow a fallback fee + error = _("Fee estimation failed. Fallbackfee is disabled. Wait a few blocks or enable -fallbackfee."); + return false; + } + + // Get long term estimate + CCoinControl cc_temp; + cc_temp.m_confirm_target = chain().estimateMaxBlocks(); + coin_selection_params.m_long_term_feerate = GetMinimumFeeRate(*this, cc_temp, nullptr); + + // Calculate the cost of change + // Cost of change is the cost of creating the change output + cost of spending the change output in the future. + // For creating the change output now, we use the effective feerate. + // For spending the change output in the future, we use the discard feerate for now. + // So cost of change = (change output size * effective feerate) + (size of spending change output * discard feerate) + coin_selection_params.m_change_fee = coin_selection_params.m_effective_feerate.GetFee(coin_selection_params.change_output_size); + coin_selection_params.m_cost_of_change = coin_selection_params.m_discard_feerate.GetFee(coin_selection_params.change_spend_size) + coin_selection_params.m_change_fee; + + // vouts to the payees + if (!coin_selection_params.m_subtract_fee_outputs) { + coin_selection_params.tx_noinputs_size = 11; // Static vsize overhead + outputs vsize. 4 nVersion, 4 nLocktime, 1 input count, 1 output count, 1 witness overhead (dummy, flag, stack size) + } + for (const auto& recipient : vecSend) { - std::set<CInputCoin> setCoins; - LOCK(cs_wallet); - txNew.nLockTime = GetLocktimeForNewTransaction(chain(), GetLastBlockHash(), GetLastBlockHeight()); - { - std::vector<COutput> vAvailableCoins; - AvailableCoins(vAvailableCoins, &coin_control, 1, MAX_MONEY, MAX_MONEY, 0); - CoinSelectionParams coin_selection_params; // Parameters for coin selection, init with dummy - coin_selection_params.m_avoid_partial_spends = coin_control.m_avoid_partial_spends; - - // Create change script that will be used if we need change - // TODO: pass in scriptChange instead of reservedest so - // change transaction isn't always pay-to-bitcoin-address - CScript scriptChange; - - // coin control: send change to custom address - if (!std::get_if<CNoDestination>(&coin_control.destChange)) { - scriptChange = GetScriptForDestination(coin_control.destChange); - } else { // no coin control: send change to newly generated address - // Note: We use a new key here to keep it from being obvious which side is the change. - // The drawback is that by not reusing a previous key, the change may be lost if a - // backup is restored, if the backup doesn't have the new private key for the change. - // If we reused the old key, it would be possible to add code to look for and - // rediscover unknown transactions that were written with keys of ours to recover - // post-backup change. - - // Reserve a new key pair from key pool. If it fails, provide a dummy - // destination in case we don't need change. - CTxDestination dest; - if (!reservedest.GetReservedDestination(dest, true)) { - error = _("Transaction needs a change address, but we can't generate it. Please call keypoolrefill first."); - } - scriptChange = GetScriptForDestination(dest); - // A valid destination implies a change script (and - // vice-versa). An empty change script will abort later, if the - // change keypool ran out, but change is required. - CHECK_NONFATAL(IsValidDestination(dest) != scriptChange.empty()); - } - CTxOut change_prototype_txout(0, scriptChange); - coin_selection_params.change_output_size = GetSerializeSize(change_prototype_txout); - - // Get size of spending the change output - int change_spend_size = CalculateMaximumSignedInputSize(change_prototype_txout, this); - // If the wallet doesn't know how to sign change output, assume p2sh-p2wpkh - // as lower-bound to allow BnB to do it's thing - if (change_spend_size == -1) { - coin_selection_params.change_spend_size = DUMMY_NESTED_P2WPKH_INPUT_SIZE; - } else { - coin_selection_params.change_spend_size = (size_t)change_spend_size; - } + CTxOut txout(recipient.nAmount, recipient.scriptPubKey); - // Set discard feerate - coin_selection_params.m_discard_feerate = GetDiscardRate(*this); + // Include the fee cost for outputs. + if (!coin_selection_params.m_subtract_fee_outputs) { + coin_selection_params.tx_noinputs_size += ::GetSerializeSize(txout, PROTOCOL_VERSION); + } - // Get the fee rate to use effective values in coin selection - coin_selection_params.m_effective_feerate = GetMinimumFeeRate(*this, coin_control, &feeCalc); - // Do not, ever, assume that it's fine to change the fee rate if the user has explicitly - // provided one - if (coin_control.m_feerate && coin_selection_params.m_effective_feerate > *coin_control.m_feerate) { - error = strprintf(_("Fee rate (%s) is lower than the minimum fee rate setting (%s)"), coin_control.m_feerate->ToString(FeeEstimateMode::SAT_VB), coin_selection_params.m_effective_feerate.ToString(FeeEstimateMode::SAT_VB)); - return false; - } - if (feeCalc.reason == FeeReason::FALLBACK && !m_allow_fallback_fee) { - // eventually allow a fallback fee - error = _("Fee estimation failed. Fallbackfee is disabled. Wait a few blocks or enable -fallbackfee."); - return false; - } + if (IsDust(txout, chain().relayDustFee())) + { + error = _("Transaction amount too small"); + return false; + } + txNew.vout.push_back(txout); + } - // Get long term estimate - CCoinControl cc_temp; - cc_temp.m_confirm_target = chain().estimateMaxBlocks(); - coin_selection_params.m_long_term_feerate = GetMinimumFeeRate(*this, cc_temp, nullptr); + // Include the fees for things that aren't inputs, excluding the change output + const CAmount not_input_fees = coin_selection_params.m_effective_feerate.GetFee(coin_selection_params.tx_noinputs_size); + CAmount selection_target = recipients_sum + not_input_fees; - // Calculate the cost of change - // Cost of change is the cost of creating the change output + cost of spending the change output in the future. - // For creating the change output now, we use the effective feerate. - // For spending the change output in the future, we use the discard feerate for now. - // So cost of change = (change output size * effective feerate) + (size of spending change output * discard feerate) - coin_selection_params.m_change_fee = coin_selection_params.m_effective_feerate.GetFee(coin_selection_params.change_output_size); - coin_selection_params.m_cost_of_change = coin_selection_params.m_discard_feerate.GetFee(coin_selection_params.change_spend_size) + coin_selection_params.m_change_fee; + // Get available coins + std::vector<COutput> vAvailableCoins; + AvailableCoins(vAvailableCoins, &coin_control, 1, MAX_MONEY, MAX_MONEY, 0); - coin_selection_params.m_subtract_fee_outputs = nSubtractFeeFromAmount != 0; // If we are doing subtract fee from recipient, don't use effective values + // Choose coins to use + CAmount inputs_sum = 0; + std::set<CInputCoin> setCoins; + if (!SelectCoins(vAvailableCoins, /* nTargetValue */ selection_target, setCoins, inputs_sum, coin_control, coin_selection_params)) + { + error = _("Insufficient funds"); + return false; + } - // vouts to the payees - if (!coin_selection_params.m_subtract_fee_outputs) { - coin_selection_params.tx_noinputs_size = 11; // Static vsize overhead + outputs vsize. 4 nVersion, 4 nLocktime, 1 input count, 1 output count, 1 witness overhead (dummy, flag, stack size) - } - for (const auto& recipient : vecSend) - { - CTxOut txout(recipient.nAmount, recipient.scriptPubKey); + // Always make a change output + // We will reduce the fee from this change output later, and remove the output if it is too small. + const CAmount change_and_fee = inputs_sum - recipients_sum; + assert(change_and_fee >= 0); + CTxOut newTxOut(change_and_fee, scriptChange); - // Include the fee cost for outputs. - if (!coin_selection_params.m_subtract_fee_outputs) { - coin_selection_params.tx_noinputs_size += ::GetSerializeSize(txout, PROTOCOL_VERSION); - } + if (nChangePosInOut == -1) + { + // Insert change txn at random position: + nChangePosInOut = GetRandInt(txNew.vout.size()+1); + } + else if ((unsigned int)nChangePosInOut > txNew.vout.size()) + { + error = _("Change index out of range"); + return false; + } - if (IsDust(txout, chain().relayDustFee())) - { - error = _("Transaction amount too small"); - return false; - } - txNew.vout.push_back(txout); - } + assert(nChangePosInOut != -1); + auto change_position = txNew.vout.insert(txNew.vout.begin() + nChangePosInOut, newTxOut); - // Include the fees for things that aren't inputs, excluding the change output - const CAmount not_input_fees = coin_selection_params.m_effective_feerate.GetFee(coin_selection_params.tx_noinputs_size); - CAmount nValueToSelect = nValue + not_input_fees; + // Shuffle selected coins and fill in final vin + std::vector<CInputCoin> selected_coins(setCoins.begin(), setCoins.end()); + Shuffle(selected_coins.begin(), selected_coins.end(), FastRandomContext()); - // Choose coins to use - CAmount inputs_sum = 0; - setCoins.clear(); - if (!SelectCoins(vAvailableCoins, /* nTargetValue */ nValueToSelect, setCoins, inputs_sum, coin_control, coin_selection_params)) - { - error = _("Insufficient funds"); - return false; - } - - // Always make a change output - // We will reduce the fee from this change output later, and remove the output if it is too small. - const CAmount change_and_fee = inputs_sum - nValue; - assert(change_and_fee >= 0); - CTxOut newTxOut(change_and_fee, scriptChange); + // Note how the sequence number is set to non-maxint so that + // the nLockTime set above actually works. + // + // BIP125 defines opt-in RBF as any nSequence < maxint-1, so + // we use the highest possible value in that range (maxint-2) + // to avoid conflicting with other possible uses of nSequence, + // and in the spirit of "smallest possible change from prior + // behavior." + const uint32_t nSequence = coin_control.m_signal_bip125_rbf.value_or(m_signal_rbf) ? MAX_BIP125_RBF_SEQUENCE : (CTxIn::SEQUENCE_FINAL - 1); + for (const auto& coin : selected_coins) { + txNew.vin.push_back(CTxIn(coin.outpoint, CScript(), nSequence)); + } - if (nChangePosInOut == -1) - { - // Insert change txn at random position: - nChangePosInOut = GetRandInt(txNew.vout.size()+1); - } - else if ((unsigned int)nChangePosInOut > txNew.vout.size()) - { - error = _("Change index out of range"); - return false; - } + // Calculate the transaction fee + TxSize tx_sizes = CalculateMaximumSignedTxSize(CTransaction(txNew), this, coin_control.fAllowWatchOnly); + int nBytes = tx_sizes.vsize; + if (nBytes < 0) { + error = _("Signing transaction failed"); + return false; + } + nFeeRet = coin_selection_params.m_effective_feerate.GetFee(nBytes); - assert(nChangePosInOut != -1); - auto change_position = txNew.vout.insert(txNew.vout.begin() + nChangePosInOut, newTxOut); + // Subtract fee from the change output if not subtracting it from recipient outputs + CAmount fee_needed = nFeeRet; + if (!coin_selection_params.m_subtract_fee_outputs) { + change_position->nValue -= fee_needed; + } - // Dummy fill vin for maximum size estimation - // - for (const auto& coin : setCoins) { - txNew.vin.push_back(CTxIn(coin.outpoint,CScript())); - } + // We want to drop the change to fees if: + // 1. The change output would be dust + // 2. The change is within the (almost) exact match window, i.e. it is less than or equal to the cost of the change output (cost_of_change) + CAmount change_amount = change_position->nValue; + if (IsDust(*change_position, coin_selection_params.m_discard_feerate) || change_amount <= coin_selection_params.m_cost_of_change) + { + nChangePosInOut = -1; + change_amount = 0; + txNew.vout.erase(change_position); + + // Because we have dropped this change, the tx size and required fee will be different, so let's recalculate those + tx_sizes = CalculateMaximumSignedTxSize(CTransaction(txNew), this, coin_control.fAllowWatchOnly); + nBytes = tx_sizes.vsize; + fee_needed = coin_selection_params.m_effective_feerate.GetFee(nBytes); + } - // Calculate the transaction fee - tx_sizes = CalculateMaximumSignedTxSize(CTransaction(txNew), this, coin_control.fAllowWatchOnly); - nBytes = tx_sizes.vsize; - if (nBytes < 0) { - error = _("Signing transaction failed"); - return false; - } - nFeeRet = coin_selection_params.m_effective_feerate.GetFee(nBytes); + // Update nFeeRet in case fee_needed changed due to dropping the change output + if (fee_needed <= change_and_fee - change_amount) { + nFeeRet = change_and_fee - change_amount; + } - // Subtract fee from the change output if not subtrating it from recipient outputs - CAmount fee_needed = nFeeRet; - if (nSubtractFeeFromAmount == 0) { - change_position->nValue -= fee_needed; + // Reduce output values for subtractFeeFromAmount + if (coin_selection_params.m_subtract_fee_outputs) { + CAmount to_reduce = fee_needed + change_amount - change_and_fee; + int i = 0; + bool fFirst = true; + for (const auto& recipient : vecSend) + { + if (i == nChangePosInOut) { + ++i; } + CTxOut& txout = txNew.vout[i]; - // We want to drop the change to fees if: - // 1. The change output would be dust - // 2. The change is within the (almost) exact match window, i.e. it is less than or equal to the cost of the change output (cost_of_change) - CAmount change_amount = change_position->nValue; - if (IsDust(*change_position, coin_selection_params.m_discard_feerate) || change_amount <= coin_selection_params.m_cost_of_change) + if (recipient.fSubtractFeeFromAmount) { - nChangePosInOut = -1; - change_amount = 0; - txNew.vout.erase(change_position); - - // Because we have dropped this change, the tx size and required fee will be different, so let's recalculate those - tx_sizes = CalculateMaximumSignedTxSize(CTransaction(txNew), this, coin_control.fAllowWatchOnly); - nBytes = tx_sizes.vsize; - fee_needed = coin_selection_params.m_effective_feerate.GetFee(nBytes); - } + txout.nValue -= to_reduce / outputs_to_subtract_fee_from; // Subtract fee equally from each selected recipient - // Update nFeeRet in case fee_needed changed due to dropping the change output - if (fee_needed <= change_and_fee - change_amount) { - nFeeRet = change_and_fee - change_amount; - } - - // Reduce output values for subtractFeeFromAmount - if (nSubtractFeeFromAmount != 0) { - CAmount to_reduce = fee_needed + change_amount - change_and_fee; - int i = 0; - bool fFirst = true; - for (const auto& recipient : vecSend) + if (fFirst) // first receiver pays the remainder not divisible by output count { - if (i == nChangePosInOut) { - ++i; - } - CTxOut& txout = txNew.vout[i]; - - if (recipient.fSubtractFeeFromAmount) - { - txout.nValue -= to_reduce / nSubtractFeeFromAmount; // Subtract fee equally from each selected recipient - - if (fFirst) // first receiver pays the remainder not divisible by output count - { - fFirst = false; - txout.nValue -= to_reduce % nSubtractFeeFromAmount; - } - - // Error if this output is reduced to be below dust - if (IsDust(txout, chain().relayDustFee())) { - if (txout.nValue < 0) { - error = _("The transaction amount is too small to pay the fee"); - } else { - error = _("The transaction amount is too small to send after the fee has been deducted"); - } - return false; - } - } - ++i; + fFirst = false; + txout.nValue -= to_reduce % outputs_to_subtract_fee_from; } - nFeeRet = fee_needed; - } - // Give up if change keypool ran out and change is required - if (scriptChange.empty() && nChangePosInOut != -1) { - return false; + // Error if this output is reduced to be below dust + if (IsDust(txout, chain().relayDustFee())) { + if (txout.nValue < 0) { + error = _("The transaction amount is too small to pay the fee"); + } else { + error = _("The transaction amount is too small to send after the fee has been deducted"); + } + return false; + } } + ++i; } + nFeeRet = fee_needed; + } - // Shuffle selected coins and fill in final vin - txNew.vin.clear(); - std::vector<CInputCoin> selected_coins(setCoins.begin(), setCoins.end()); - Shuffle(selected_coins.begin(), selected_coins.end(), FastRandomContext()); - - // Note how the sequence number is set to non-maxint so that - // the nLockTime set above actually works. - // - // BIP125 defines opt-in RBF as any nSequence < maxint-1, so - // we use the highest possible value in that range (maxint-2) - // to avoid conflicting with other possible uses of nSequence, - // and in the spirit of "smallest possible change from prior - // behavior." - const uint32_t nSequence = coin_control.m_signal_bip125_rbf.value_or(m_signal_rbf) ? MAX_BIP125_RBF_SEQUENCE : (CTxIn::SEQUENCE_FINAL - 1); - for (const auto& coin : selected_coins) { - txNew.vin.push_back(CTxIn(coin.outpoint, CScript(), nSequence)); - } + // Give up if change keypool ran out and change is required + if (scriptChange.empty() && nChangePosInOut != -1) { + return false; + } - if (sign && !SignTransaction(txNew)) { - error = _("Signing transaction failed"); - return false; - } + if (sign && !SignTransaction(txNew)) { + error = _("Signing transaction failed"); + return false; + } - // Return the constructed transaction data. - tx = MakeTransactionRef(std::move(txNew)); + // Return the constructed transaction data. + tx = MakeTransactionRef(std::move(txNew)); - // Limit size - if ((sign && GetTransactionWeight(*tx) > MAX_STANDARD_TX_WEIGHT) || - (!sign && tx_sizes.weight > MAX_STANDARD_TX_WEIGHT)) - { - error = _("Transaction too large"); - return false; - } + // Limit size + if ((sign && GetTransactionWeight(*tx) > MAX_STANDARD_TX_WEIGHT) || + (!sign && tx_sizes.weight > MAX_STANDARD_TX_WEIGHT)) + { + error = _("Transaction too large"); + return false; } if (nFeeRet > m_default_max_tx_fee) { @@ -900,6 +879,18 @@ bool CWallet::CreateTransaction( FeeCalculation& fee_calc_out, bool sign) { + if (vecSend.empty()) { + error = _("Transaction must have at least one recipient"); + return false; + } + + if (std::any_of(vecSend.cbegin(), vecSend.cend(), [](const auto& recipient){ return recipient.nAmount < 0; })) { + error = _("Transaction amounts must not be negative"); + return false; + } + + LOCK(cs_wallet); + int nChangePosIn = nChangePosInOut; Assert(!tx); // tx is an out-param. TODO change the return type from bool to tx (or nullptr) bool res = CreateTransactionInternal(vecSend, tx, nFeeRet, nChangePosInOut, error, coin_control, fee_calc_out, sign); diff --git a/src/wallet/test/coinselector_tests.cpp b/src/wallet/test/coinselector_tests.cpp index 14c3578473..c65ebad52f 100644 --- a/src/wallet/test/coinselector_tests.cpp +++ b/src/wallet/test/coinselector_tests.cpp @@ -270,7 +270,7 @@ BOOST_AUTO_TEST_CASE(bnb_search_test) BOOST_CHECK(!SelectCoinsBnB(GroupCoins(utxo_pool), 1 * CENT, 2 * CENT, selection, value_ret)); } - // Make sure that effective value is working in SelectCoinsMinConf when BnB is used + // Make sure that effective value is working in AttemptSelection when BnB is used CoinSelectionParams coin_selection_params_bnb(/* change_output_size= */ 0, /* change_spend_size= */ 0, /* effective_feerate= */ CFeeRate(3000), /* long_term_feerate= */ CFeeRate(1000), /* discard_feerate= */ CFeeRate(1000), @@ -280,14 +280,14 @@ BOOST_AUTO_TEST_CASE(bnb_search_test) empty_wallet(); add_coin(1); vCoins.at(0).nInputBytes = 40; // Make sure that it has a negative effective value. The next check should assert if this somehow got through. Otherwise it will fail - BOOST_CHECK(!testWallet.SelectCoinsMinConf( 1 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params_bnb)); + BOOST_CHECK(!testWallet.AttemptSelection( 1 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params_bnb)); // Test fees subtracted from output: empty_wallet(); add_coin(1 * CENT); vCoins.at(0).nInputBytes = 40; coin_selection_params_bnb.m_subtract_fee_outputs = true; - BOOST_CHECK(testWallet.SelectCoinsMinConf( 1 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params_bnb)); + BOOST_CHECK(testWallet.AttemptSelection( 1 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params_bnb)); BOOST_CHECK_EQUAL(nValueRet, 1 * CENT); // Make sure that can use BnB when there are preset inputs @@ -322,24 +322,24 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test) empty_wallet(); // with an empty wallet we can't even pay one cent - BOOST_CHECK(!testWallet.SelectCoinsMinConf( 1 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK(!testWallet.AttemptSelection( 1 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); add_coin(1*CENT, 4); // add a new 1 cent coin // with a new 1 cent coin, we still can't find a mature 1 cent - BOOST_CHECK(!testWallet.SelectCoinsMinConf( 1 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK(!testWallet.AttemptSelection( 1 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); // but we can find a new 1 cent - BOOST_CHECK( testWallet.SelectCoinsMinConf( 1 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection( 1 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 1 * CENT); add_coin(2*CENT); // add a mature 2 cent coin // we can't make 3 cents of mature coins - BOOST_CHECK(!testWallet.SelectCoinsMinConf( 3 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK(!testWallet.AttemptSelection( 3 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); // we can make 3 cents of new coins - BOOST_CHECK( testWallet.SelectCoinsMinConf( 3 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection( 3 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 3 * CENT); add_coin(5*CENT); // add a mature 5 cent coin, @@ -349,33 +349,33 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test) // now we have new: 1+10=11 (of which 10 was self-sent), and mature: 2+5+20=27. total = 38 // we can't make 38 cents only if we disallow new coins: - BOOST_CHECK(!testWallet.SelectCoinsMinConf(38 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK(!testWallet.AttemptSelection(38 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); // we can't even make 37 cents if we don't allow new coins even if they're from us - BOOST_CHECK(!testWallet.SelectCoinsMinConf(38 * CENT, filter_standard_extra, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK(!testWallet.AttemptSelection(38 * CENT, filter_standard_extra, vCoins, setCoinsRet, nValueRet, coin_selection_params)); // but we can make 37 cents if we accept new coins from ourself - BOOST_CHECK( testWallet.SelectCoinsMinConf(37 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(37 * CENT, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 37 * CENT); // and we can make 38 cents if we accept all new coins - BOOST_CHECK( testWallet.SelectCoinsMinConf(38 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(38 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 38 * CENT); // try making 34 cents from 1,2,5,10,20 - we can't do it exactly - BOOST_CHECK( testWallet.SelectCoinsMinConf(34 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(34 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 35 * CENT); // but 35 cents is closest BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U); // the best should be 20+10+5. it's incredibly unlikely the 1 or 2 got included (but possible) // when we try making 7 cents, the smaller coins (1,2,5) are enough. We should see just 2+5 - BOOST_CHECK( testWallet.SelectCoinsMinConf( 7 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection( 7 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 7 * CENT); BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); // when we try making 8 cents, the smaller coins (1,2,5) are exactly enough. - BOOST_CHECK( testWallet.SelectCoinsMinConf( 8 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection( 8 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK(nValueRet == 8 * CENT); BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U); // when we try making 9 cents, no subset of smaller coins is enough, and we get the next bigger coin (10) - BOOST_CHECK( testWallet.SelectCoinsMinConf( 9 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection( 9 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 10 * CENT); BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); @@ -389,30 +389,30 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test) add_coin(30*CENT); // now we have 6+7+8+20+30 = 71 cents total // check that we have 71 and not 72 - BOOST_CHECK( testWallet.SelectCoinsMinConf(71 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); - BOOST_CHECK(!testWallet.SelectCoinsMinConf(72 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(71 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK(!testWallet.AttemptSelection(72 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); // now try making 16 cents. the best smaller coins can do is 6+7+8 = 21; not as good at the next biggest coin, 20 - BOOST_CHECK( testWallet.SelectCoinsMinConf(16 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(16 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 20 * CENT); // we should get 20 in one coin BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); add_coin( 5*CENT); // now we have 5+6+7+8+20+30 = 75 cents total // now if we try making 16 cents again, the smaller coins can make 5+6+7 = 18 cents, better than the next biggest coin, 20 - BOOST_CHECK( testWallet.SelectCoinsMinConf(16 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(16 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 18 * CENT); // we should get 18 in 3 coins BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U); add_coin( 18*CENT); // now we have 5+6+7+8+18+20+30 // and now if we try making 16 cents again, the smaller coins can make 5+6+7 = 18 cents, the same as the next biggest coin, 18 - BOOST_CHECK( testWallet.SelectCoinsMinConf(16 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(16 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 18 * CENT); // we should get 18 in 1 coin BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); // because in the event of a tie, the biggest coin wins // now try making 11 cents. we should get 5+6 - BOOST_CHECK( testWallet.SelectCoinsMinConf(11 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(11 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 11 * CENT); BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); @@ -421,11 +421,11 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test) add_coin( 2*COIN); add_coin( 3*COIN); add_coin( 4*COIN); // now we have 5+6+7+8+18+20+30+100+200+300+400 = 1094 cents - BOOST_CHECK( testWallet.SelectCoinsMinConf(95 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(95 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 1 * COIN); // we should get 1 BTC in 1 coin BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); - BOOST_CHECK( testWallet.SelectCoinsMinConf(195 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(195 * CENT, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 2 * COIN); // we should get 2 BTC in 1 coin BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); @@ -440,14 +440,14 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test) // try making 1 * MIN_CHANGE from the 1.5 * MIN_CHANGE // we'll get change smaller than MIN_CHANGE whatever happens, so can expect MIN_CHANGE exactly - BOOST_CHECK( testWallet.SelectCoinsMinConf(MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE); // but if we add a bigger coin, small change is avoided add_coin(1111*MIN_CHANGE); // try making 1 from 0.1 + 0.2 + 0.3 + 0.4 + 0.5 + 1111 = 1112.5 - BOOST_CHECK( testWallet.SelectCoinsMinConf(1 * MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(1 * MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 1 * MIN_CHANGE); // we should get the exact amount // if we add more small coins: @@ -455,7 +455,7 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test) add_coin(MIN_CHANGE * 7 / 10); // and try again to make 1.0 * MIN_CHANGE - BOOST_CHECK( testWallet.SelectCoinsMinConf(1 * MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(1 * MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 1 * MIN_CHANGE); // we should get the exact amount // run the 'mtgox' test (see https://blockexplorer.com/tx/29a3efd3ef04f9153d47a990bd7b048a4b2d213daaa5fb8ed670fb85f13bdbcf) @@ -464,7 +464,7 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test) for (int j = 0; j < 20; j++) add_coin(50000 * COIN); - BOOST_CHECK( testWallet.SelectCoinsMinConf(500000 * COIN, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(500000 * COIN, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 500000 * COIN); // we should get the exact amount BOOST_CHECK_EQUAL(setCoinsRet.size(), 10U); // in ten coins @@ -477,7 +477,7 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test) add_coin(MIN_CHANGE * 6 / 10); add_coin(MIN_CHANGE * 7 / 10); add_coin(1111 * MIN_CHANGE); - BOOST_CHECK( testWallet.SelectCoinsMinConf(1 * MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(1 * MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 1111 * MIN_CHANGE); // we get the bigger coin BOOST_CHECK_EQUAL(setCoinsRet.size(), 1U); @@ -487,7 +487,7 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test) add_coin(MIN_CHANGE * 6 / 10); add_coin(MIN_CHANGE * 8 / 10); add_coin(1111 * MIN_CHANGE); - BOOST_CHECK( testWallet.SelectCoinsMinConf(MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK( testWallet.AttemptSelection(MIN_CHANGE, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE); // we should get the exact amount BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); // in two coins 0.4+0.6 @@ -498,12 +498,12 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test) add_coin(MIN_CHANGE * 100); // trying to make 100.01 from these three coins - BOOST_CHECK(testWallet.SelectCoinsMinConf(MIN_CHANGE * 10001 / 100, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK(testWallet.AttemptSelection(MIN_CHANGE * 10001 / 100, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, MIN_CHANGE * 10105 / 100); // we should get all coins BOOST_CHECK_EQUAL(setCoinsRet.size(), 3U); // but if we try to make 99.9, we should take the bigger of the two small coins to avoid small change - BOOST_CHECK(testWallet.SelectCoinsMinConf(MIN_CHANGE * 9990 / 100, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK(testWallet.AttemptSelection(MIN_CHANGE * 9990 / 100, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 101 * MIN_CHANGE); BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); } @@ -517,7 +517,7 @@ BOOST_AUTO_TEST_CASE(knapsack_solver_test) // We only create the wallet once to save time, but we still run the coin selection RUN_TESTS times. for (int i = 0; i < RUN_TESTS; i++) { - BOOST_CHECK(testWallet.SelectCoinsMinConf(2000, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK(testWallet.AttemptSelection(2000, filter_confirmed, vCoins, setCoinsRet, nValueRet, coin_selection_params)); if (amt - 2000 < MIN_CHANGE) { // needs more than one input: @@ -602,7 +602,7 @@ BOOST_AUTO_TEST_CASE(ApproximateBestSubset) add_coin(1000 * COIN); add_coin(3 * COIN); - BOOST_CHECK(testWallet.SelectCoinsMinConf(1003 * COIN, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); + BOOST_CHECK(testWallet.AttemptSelection(1003 * COIN, filter_standard, vCoins, setCoinsRet, nValueRet, coin_selection_params)); BOOST_CHECK_EQUAL(nValueRet, 1003 * COIN); BOOST_CHECK_EQUAL(setCoinsRet.size(), 2U); diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h index 788a901f95..d0e26c416c 100644 --- a/src/wallet/wallet.h +++ b/src/wallet/wallet.h @@ -326,7 +326,7 @@ private: // ScriptPubKeyMan::GetID. In many cases it will be the hash of an internal structure std::map<uint256, std::unique_ptr<ScriptPubKeyMan>> m_spk_managers; - bool CreateTransactionInternal(const std::vector<CRecipient>& vecSend, CTransactionRef& tx, CAmount& nFeeRet, int& nChangePosInOut, bilingual_str& error, const CCoinControl& coin_control, FeeCalculation& fee_calc_out, bool sign); + bool CreateTransactionInternal(const std::vector<CRecipient>& vecSend, CTransactionRef& tx, CAmount& nFeeRet, int& nChangePosInOut, bilingual_str& error, const CCoinControl& coin_control, FeeCalculation& fee_calc_out, bool sign) EXCLUSIVE_LOCKS_REQUIRED(cs_wallet); /** * Catch wallet up to current chain, scanning new blocks, updating the best @@ -445,7 +445,7 @@ public: * param@[out] setCoinsRet Populated with the coins selected if successful. * param@[out] nValueRet Used to return the total value of selected coins. */ - bool SelectCoinsMinConf(const CAmount& nTargetValue, const CoinEligibilityFilter& eligibility_filter, std::vector<COutput> coins, + bool AttemptSelection(const CAmount& nTargetValue, const CoinEligibilityFilter& eligibility_filter, std::vector<COutput> coins, std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet, const CoinSelectionParams& coin_selection_params) const; bool IsSpent(const uint256& hash, unsigned int n) const EXCLUSIVE_LOCKS_REQUIRED(cs_wallet); |