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Use BnB when preset inputs are selected

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This commit is contained in:
Andrew Chow
2019-10-25 18:10:13 -04:00
parent cfec3e01b4
commit db15e71e79
2 changed files with 58 additions and 29 deletions
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44
src/wallet/wallet.cpp
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@@ -2674,6 +2674,7 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const CoinEligibil
bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAmount& nTargetValue, std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet, const CCoinControl& coin_control, CoinSelectionParams& coin_selection_params, bool& bnb_used) const
{
std::vector<COutput> vCoins(vAvailableCoins);
CAmount value_to_select = nTargetValue;
// coin control -> return all selected outputs (we want all selected to go into the transaction for sure)
if (coin_control.HasSelected() && !coin_control.fAllowOtherInputs)
@@ -2699,22 +2700,33 @@ bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAm
coin_control.ListSelected(vPresetInputs);
for (const COutPoint& outpoint : vPresetInputs)
{
// For now, don't use BnB if preset inputs are selected. TODO: Enable this later
bnb_used = false;
coin_selection_params.use_bnb = false;
std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(outpoint.hash);
if (it != mapWallet.end())
{
const CWalletTx& wtx = it->second;
// Clearly invalid input, fail
if (wtx.tx->vout.size() <= outpoint.n)
if (wtx.tx->vout.size() <= outpoint.n) {
bnb_used = false;
return false;
}
// Just to calculate the marginal byte size
nValueFromPresetInputs += wtx.tx->vout[outpoint.n].nValue;
setPresetCoins.insert(CInputCoin(wtx.tx, outpoint.n));
} else
CInputCoin coin(wtx.tx, outpoint.n, wtx.GetSpendSize(outpoint.n, false));
nValueFromPresetInputs += coin.txout.nValue;
if (coin.m_input_bytes <= 0) {
bnb_used = false;
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);
if (coin_selection_params.use_bnb) {
value_to_select -= coin.effective_value;
} else {
value_to_select -= coin.txout.nValue;
}
setPresetCoins.insert(coin);
} else {
bnb_used = false;
return false; // TODO: Allow non-wallet inputs
}
}
// remove preset inputs from vCoins
@@ -2743,14 +2755,14 @@ bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAm
size_t max_descendants = (size_t)std::max<int64_t>(1, limit_descendant_count);
bool fRejectLongChains = gArgs.GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS);
bool res = nTargetValue <= nValueFromPresetInputs ||
SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, CoinEligibilityFilter(1, 6, 0), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used) ||
SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, CoinEligibilityFilter(1, 1, 0), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used) ||
(m_spend_zero_conf_change && SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, CoinEligibilityFilter(0, 1, 2), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
(m_spend_zero_conf_change && SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, CoinEligibilityFilter(0, 1, std::min((size_t)4, max_ancestors/3), std::min((size_t)4, max_descendants/3)), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
(m_spend_zero_conf_change && SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, CoinEligibilityFilter(0, 1, max_ancestors/2, max_descendants/2), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
(m_spend_zero_conf_change && SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, CoinEligibilityFilter(0, 1, max_ancestors-1, max_descendants-1), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
(m_spend_zero_conf_change && !fRejectLongChains && SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, CoinEligibilityFilter(0, 1, std::numeric_limits<uint64_t>::max()), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used));
bool res = value_to_select <= 0 ||
SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(1, 6, 0), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used) ||
SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(1, 1, 0), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used) ||
(m_spend_zero_conf_change && SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, 2), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
(m_spend_zero_conf_change && SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, std::min((size_t)4, max_ancestors/3), std::min((size_t)4, max_descendants/3)), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
(m_spend_zero_conf_change && SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, max_ancestors/2, max_descendants/2), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
(m_spend_zero_conf_change && SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, max_ancestors-1, max_descendants-1), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used)) ||
(m_spend_zero_conf_change && !fRejectLongChains && SelectCoinsMinConf(value_to_select, CoinEligibilityFilter(0, 1, std::numeric_limits<uint64_t>::max()), groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used));
// because SelectCoinsMinConf clears the setCoinsRet, we now add the possible inputs to the coinset
util::insert(setCoinsRet, setPresetCoins);