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wallet: Move long term feerate setting to CreateTransaction

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Instead of setting the long term feerate for each SelectCoinsMinConf
iteration, set it once during CreateTransaction and let it be shared
with each SelectCoinsMinConf through
coin_selection_params.m_long_term_feerate.

Does not change behavior.
This commit is contained in:
Andrew Chow 2021-02-04 18:28:45 -05:00
parent e2f429e6bb
commit 448d04b931
4 changed files with 30 additions and 13 deletions
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5
src/bench/coin_selection.cpp
View File

@ -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_fee= */ CFeeRate(0),
/* long_term_feerate= */ CFeeRate(0),
/* tx_no_inputs_size= */ 0, /* avoid_partial= */ false);
bench.run([&] {
std::set<CInputCoin> setCoinsRet;
CAmount nValueRet;

20
src/wallet/test/coinselector_tests.cpp
View File

@ -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_fee= */ CFeeRate(0),
/* long_term_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_fee= */ CFeeRate(3000),
/* long_term_feerate= */ CFeeRate(1000),
/* tx_no_inputs_size= */ 0, /* avoid_partial= */ false);
CoinSet setCoinsRet;
CAmount nValueRet;
bool bnb_used;
@ -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_fee= */ CFeeRate(0),
/* long_term_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_fee= */ CFeeRate(0),
/* long_term_feerate= */ CFeeRate(0),
/* tx_no_inputs_size= */ 0, /* avoid_partial= */ false);
CoinSet out_set;
CAmount out_value = 0;
bool bnb_used = false;

13
src/wallet/wallet.cpp
View File

@ -2364,12 +2364,6 @@ 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};
@ -2377,7 +2371,7 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const CoinEligibil
effective_feerate = coin_selection_params.effective_fee;
}
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);
@ -2820,6 +2814,11 @@ bool CWallet::CreateTransactionInternal(
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;

5
src/wallet/wallet.h
View File

@ -607,16 +607,19 @@ struct CoinSelectionParams
size_t change_output_size = 0;
size_t change_spend_size = 0;
CFeeRate effective_fee = CFeeRate(0);
CFeeRate m_long_term_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_fee,
CFeeRate long_term_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_long_term_feerate(long_term_feerate),
tx_noinputs_size(tx_noinputs_size),
m_avoid_partial_spends(avoid_partial)
{}