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-rw-r--r--src/bench/coin_selection.cpp5
-rw-r--r--src/wallet/test/coinselector_tests.cpp22
-rw-r--r--src/wallet/wallet.cpp50
-rw-r--r--src/wallet/wallet.h11
4 files changed, 53 insertions, 35 deletions
diff --git a/src/bench/coin_selection.cpp b/src/bench/coin_selection.cpp
index 376e70ffba..80acdec044 100644
--- a/src/bench/coin_selection.cpp
+++ b/src/bench/coin_selection.cpp
@@ -49,7 +49,10 @@ static void CoinSelection(benchmark::Bench& bench)
}
const CoinEligibilityFilter filter_standard(1, 6, 0);
- const CoinSelectionParams coin_selection_params(true, 34, 148, CFeeRate(0), 0, false);
+ const CoinSelectionParams coin_selection_params(/* use_bnb= */ true, /* change_output_size= */ 34,
+ /* change_spend_size= */ 148, /* effective_feerate= */ CFeeRate(0),
+ /* long_term_feerate= */ CFeeRate(0), /* discard_feerate= */ CFeeRate(0),
+ /* tx_no_inputs_size= */ 0, /* avoid_partial= */ false);
bench.run([&] {
std::set<CInputCoin> setCoinsRet;
CAmount nValueRet;
diff --git a/src/wallet/test/coinselector_tests.cpp b/src/wallet/test/coinselector_tests.cpp
index 0e9f3819eb..7eff6e592d 100644
--- a/src/wallet/test/coinselector_tests.cpp
+++ b/src/wallet/test/coinselector_tests.cpp
@@ -35,7 +35,10 @@ static CAmount balance = 0;
CoinEligibilityFilter filter_standard(1, 6, 0);
CoinEligibilityFilter filter_confirmed(1, 1, 0);
CoinEligibilityFilter filter_standard_extra(6, 6, 0);
-CoinSelectionParams coin_selection_params(false, 0, 0, CFeeRate(0), 0, false);
+CoinSelectionParams coin_selection_params(/* use_bnb= */ false, /* change_output_size= */ 0,
+ /* change_spend_size= */ 0, /* effective_feerate= */ CFeeRate(0),
+ /* long_term_feerate= */ CFeeRate(0), /* discard_feerate= */ CFeeRate(0),
+ /* tx_no_inputs_size= */ 0, /* avoid_partial= */ false);
static void add_coin(const CAmount& nValue, int nInput, std::vector<CInputCoin>& set)
{
@@ -269,7 +272,10 @@ BOOST_AUTO_TEST_CASE(bnb_search_test)
}
// Make sure that effective value is working in SelectCoinsMinConf when BnB is used
- CoinSelectionParams coin_selection_params_bnb(true, 0, 0, CFeeRate(3000), 0, false);
+ CoinSelectionParams coin_selection_params_bnb(/* use_bnb= */ true, /* change_output_size= */ 0,
+ /* change_spend_size= */ 0, /* effective_feerate= */ CFeeRate(3000),
+ /* long_term_feerate= */ CFeeRate(1000), /* discard_feerate= */ CFeeRate(1000),
+ /* tx_no_inputs_size= */ 0, /* avoid_partial= */ false);
CoinSet setCoinsRet;
CAmount nValueRet;
bool bnb_used;
@@ -301,7 +307,7 @@ BOOST_AUTO_TEST_CASE(bnb_search_test)
CCoinControl coin_control;
coin_control.fAllowOtherInputs = true;
coin_control.Select(COutPoint(vCoins.at(0).tx->GetHash(), vCoins.at(0).i));
- coin_selection_params_bnb.effective_fee = CFeeRate(0);
+ coin_selection_params_bnb.m_effective_feerate = CFeeRate(0);
BOOST_CHECK(wallet->SelectCoins(vCoins, 10 * CENT, setCoinsRet, nValueRet, coin_control, coin_selection_params_bnb, bnb_used));
BOOST_CHECK(bnb_used);
BOOST_CHECK(coin_selection_params_bnb.use_bnb);
@@ -639,8 +645,14 @@ BOOST_AUTO_TEST_CASE(SelectCoins_test)
CAmount target = rand.randrange(balance - 1000) + 1000;
// Perform selection
- CoinSelectionParams coin_selection_params_knapsack(false, 34, 148, CFeeRate(0), 0, false);
- CoinSelectionParams coin_selection_params_bnb(true, 34, 148, CFeeRate(0), 0, false);
+ CoinSelectionParams coin_selection_params_knapsack(/* use_bnb= */ false, /* change_output_size= */ 34,
+ /* change_spend_size= */ 148, /* effective_feerate= */ CFeeRate(0),
+ /* long_term_feerate= */ CFeeRate(0), /* discard_feerate= */ CFeeRate(0),
+ /* tx_no_inputs_size= */ 0, /* avoid_partial= */ false);
+ CoinSelectionParams coin_selection_params_bnb(/* use_bnb= */ true, /* change_output_size= */ 34,
+ /* change_spend_size= */ 148, /* effective_feerate= */ CFeeRate(0),
+ /* long_term_feerate= */ CFeeRate(0), /* discard_feerate= */ CFeeRate(0),
+ /* tx_no_inputs_size= */ 0, /* avoid_partial= */ false);
CoinSet out_set;
CAmount out_value = 0;
bool bnb_used = false;
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index ac1b2a4c0a..2600968cad 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -2399,26 +2399,20 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const CoinEligibil
nValueRet = 0;
if (coin_selection_params.use_bnb) {
- // Get long term estimate
- FeeCalculation feeCalc;
- CCoinControl temp;
- temp.m_confirm_target = 1008;
- CFeeRate long_term_feerate = GetMinimumFeeRate(*this, temp, &feeCalc);
-
// Get the feerate for effective value.
// When subtracting the fee from the outputs, we want the effective feerate to be 0
CFeeRate effective_feerate{0};
if (!coin_selection_params.m_subtract_fee_outputs) {
- effective_feerate = coin_selection_params.effective_fee;
+ effective_feerate = coin_selection_params.m_effective_feerate;
}
- std::vector<OutputGroup> groups = GroupOutputs(coins, !coin_selection_params.m_avoid_partial_spends, effective_feerate, long_term_feerate, eligibility_filter, true /* positive_only */);
+ std::vector<OutputGroup> groups = GroupOutputs(coins, !coin_selection_params.m_avoid_partial_spends, effective_feerate, coin_selection_params.m_long_term_feerate, eligibility_filter, true /* positive_only */);
// Calculate cost of change
- CAmount cost_of_change = GetDiscardRate(*this).GetFee(coin_selection_params.change_spend_size) + coin_selection_params.effective_fee.GetFee(coin_selection_params.change_output_size);
+ CAmount cost_of_change = coin_selection_params.m_discard_feerate.GetFee(coin_selection_params.change_spend_size) + coin_selection_params.m_effective_feerate.GetFee(coin_selection_params.change_output_size);
// Calculate the fees for things that aren't inputs
- CAmount not_input_fees = coin_selection_params.effective_fee.GetFee(coin_selection_params.tx_noinputs_size);
+ CAmount not_input_fees = coin_selection_params.m_effective_feerate.GetFee(coin_selection_params.tx_noinputs_size);
bnb_used = true;
return SelectCoinsBnB(groups, nTargetValue, cost_of_change, setCoinsRet, nValueRet, not_input_fees);
} else {
@@ -2472,7 +2466,7 @@ bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAm
if (coin.m_input_bytes <= 0) {
return false; // Not solvable, can't estimate size for fee
}
- coin.effective_value = coin.txout.nValue - coin_selection_params.effective_fee.GetFee(coin.m_input_bytes);
+ coin.effective_value = coin.txout.nValue - coin_selection_params.m_effective_feerate.GetFee(coin.m_input_bytes);
if (coin_selection_params.use_bnb) {
value_to_select -= coin.effective_value;
} else {
@@ -2840,17 +2834,28 @@ bool CWallet::CreateTransactionInternal(
CTxOut change_prototype_txout(0, scriptChange);
coin_selection_params.change_output_size = GetSerializeSize(change_prototype_txout);
- CFeeRate discard_rate = GetDiscardRate(*this);
+ // Set discard feerate
+ coin_selection_params.m_discard_feerate = GetDiscardRate(*this);
// Get the fee rate to use effective values in coin selection
- CFeeRate nFeeRateNeeded = GetMinimumFeeRate(*this, coin_control, &feeCalc);
+ 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 && nFeeRateNeeded > *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), nFeeRateNeeded.ToString(FeeEstimateMode::SAT_VB));
+ 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);
+
nFeeRet = 0;
bool pick_new_inputs = true;
CAmount nValueIn = 0;
@@ -2924,7 +2929,6 @@ bool CWallet::CreateTransactionInternal(
} else {
coin_selection_params.change_spend_size = (size_t)change_spend_size;
}
- coin_selection_params.effective_fee = nFeeRateNeeded;
if (!SelectCoins(vAvailableCoins, nValueToSelect, setCoins, nValueIn, coin_control, coin_selection_params, bnb_used))
{
// If BnB was used, it was the first pass. No longer the first pass and continue loop with knapsack.
@@ -2950,7 +2954,7 @@ bool CWallet::CreateTransactionInternal(
// Never create dust outputs; if we would, just
// add the dust to the fee.
// The nChange when BnB is used is always going to go to fees.
- if (IsDust(newTxOut, discard_rate) || bnb_used)
+ if (IsDust(newTxOut, coin_selection_params.m_discard_feerate) || bnb_used)
{
nChangePosInOut = -1;
nFeeRet += nChange;
@@ -2988,13 +2992,7 @@ bool CWallet::CreateTransactionInternal(
return false;
}
- nFeeNeeded = GetMinimumFee(*this, nBytes, coin_control, &feeCalc);
- 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;
- }
-
+ nFeeNeeded = coin_selection_params.m_effective_feerate.GetFee(nBytes);
if (nFeeRet >= nFeeNeeded) {
// Reduce fee to only the needed amount if possible. This
// prevents potential overpayment in fees if the coins
@@ -3008,8 +3006,8 @@ bool CWallet::CreateTransactionInternal(
// change output. Only try this once.
if (nChangePosInOut == -1 && nSubtractFeeFromAmount == 0 && pick_new_inputs) {
unsigned int tx_size_with_change = nBytes + coin_selection_params.change_output_size + 2; // Add 2 as a buffer in case increasing # of outputs changes compact size
- CAmount fee_needed_with_change = GetMinimumFee(*this, tx_size_with_change, coin_control, nullptr);
- CAmount minimum_value_for_change = GetDustThreshold(change_prototype_txout, discard_rate);
+ CAmount fee_needed_with_change = coin_selection_params.m_effective_feerate.GetFee(tx_size_with_change);
+ CAmount minimum_value_for_change = GetDustThreshold(change_prototype_txout, coin_selection_params.m_discard_feerate);
if (nFeeRet >= fee_needed_with_change + minimum_value_for_change) {
pick_new_inputs = false;
nFeeRet = fee_needed_with_change;
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
index 3a76163dd2..f03afd5066 100644
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -608,17 +608,22 @@ struct CoinSelectionParams
bool use_bnb = true;
size_t change_output_size = 0;
size_t change_spend_size = 0;
- CFeeRate effective_fee = CFeeRate(0);
+ CFeeRate m_effective_feerate;
+ CFeeRate m_long_term_feerate;
+ CFeeRate m_discard_feerate;
size_t tx_noinputs_size = 0;
//! Indicate that we are subtracting the fee from outputs
bool m_subtract_fee_outputs = false;
bool m_avoid_partial_spends = false;
- CoinSelectionParams(bool use_bnb, size_t change_output_size, size_t change_spend_size, CFeeRate effective_fee, size_t tx_noinputs_size, bool avoid_partial) :
+ CoinSelectionParams(bool use_bnb, size_t change_output_size, size_t change_spend_size, CFeeRate effective_feerate,
+ CFeeRate long_term_feerate, CFeeRate discard_feerate, size_t tx_noinputs_size, bool avoid_partial) :
use_bnb(use_bnb),
change_output_size(change_output_size),
change_spend_size(change_spend_size),
- effective_fee(effective_fee),
+ m_effective_feerate(effective_feerate),
+ m_long_term_feerate(long_term_feerate),
+ m_discard_feerate(discard_feerate),
tx_noinputs_size(tx_noinputs_size),
m_avoid_partial_spends(avoid_partial)
{}
generated by cgit v1.2.3 (git 2.26.2) at 2024-08-31 23:46:10 +0000