diff options
| -rw-r--r-- | src/wallet/test/coinselector_tests.cpp | 9 | ||||
| -rw-r--r-- | src/wallet/wallet.cpp | 17 | ||||
| -rw-r--r-- | src/wallet/wallet.h | 2 |
3 files changed, 24 insertions, 4 deletions
diff --git a/src/wallet/test/coinselector_tests.cpp b/src/wallet/test/coinselector_tests.cpp index bc61630363..4fa5c51491 100644 --- a/src/wallet/test/coinselector_tests.cpp +++ b/src/wallet/test/coinselector_tests.cpp @@ -260,6 +260,15 @@ BOOST_AUTO_TEST_CASE(bnb_search_test) 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, GroupCoins(vCoins), setCoinsRet, nValueRet, coin_selection_params_bnb, bnb_used)); + // Test fees subtracted from output: + empty_wallet(); + add_coin(1 * CENT); + vCoins.at(0).nInputBytes = 40; + BOOST_CHECK(!testWallet.SelectCoinsMinConf( 1 * CENT, filter_standard, GroupCoins(vCoins), setCoinsRet, nValueRet, coin_selection_params_bnb, bnb_used)); + coin_selection_params_bnb.m_subtract_fee_outputs = true; + BOOST_CHECK(testWallet.SelectCoinsMinConf( 1 * CENT, filter_standard, GroupCoins(vCoins), setCoinsRet, nValueRet, coin_selection_params_bnb, bnb_used)); + BOOST_CHECK_EQUAL(nValueRet, 1 * CENT); + // Make sure that can use BnB when there are preset inputs empty_wallet(); { diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index 8f2cbfaf77..b5cc477690 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -2648,7 +2648,11 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const CoinEligibil if (effective_value > 0) { group.fee += coin.m_input_bytes < 0 ? 0 : coin_selection_params.effective_fee.GetFee(coin.m_input_bytes); group.long_term_fee += coin.m_input_bytes < 0 ? 0 : long_term_feerate.GetFee(coin.m_input_bytes); - group.effective_value += effective_value; + if (coin_selection_params.m_subtract_fee_outputs) { + group.effective_value += coin.txout.nValue; + } else { + group.effective_value += effective_value; + } ++it; } else { it = group.Discard(coin); @@ -3022,7 +3026,8 @@ bool CWallet::CreateTransaction(interfaces::Chain::Lock& locked_chain, const std // BnB selector is the only selector used when this is true. // That should only happen on the first pass through the loop. - coin_selection_params.use_bnb = nSubtractFeeFromAmount == 0; // If we are doing subtract fee from recipient, then don't use BnB + coin_selection_params.use_bnb = true; + coin_selection_params.m_subtract_fee_outputs = nSubtractFeeFromAmount != 0; // If we are doing subtract fee from recipient, don't use effective values // Start with no fee and loop until there is enough fee while (true) { @@ -3036,7 +3041,9 @@ bool CWallet::CreateTransaction(interfaces::Chain::Lock& locked_chain, const std nValueToSelect += nFeeRet; // vouts to the payees - 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) + 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); @@ -3053,7 +3060,9 @@ bool CWallet::CreateTransaction(interfaces::Chain::Lock& locked_chain, const std } } // Include the fee cost for outputs. Note this is only used for BnB right now - coin_selection_params.tx_noinputs_size += ::GetSerializeSize(txout, PROTOCOL_VERSION); + if (!coin_selection_params.m_subtract_fee_outputs) { + coin_selection_params.tx_noinputs_size += ::GetSerializeSize(txout, PROTOCOL_VERSION); + } if (IsDust(txout, chain().relayDustFee())) { diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h index 85c277ff50..9776b45715 100644 --- a/src/wallet/wallet.h +++ b/src/wallet/wallet.h @@ -715,6 +715,8 @@ struct CoinSelectionParams size_t change_spend_size = 0; CFeeRate effective_fee = CFeeRate(0); size_t tx_noinputs_size = 0; + //! Indicate that we are subtracting the fee from outputs + bool m_subtract_fee_outputs = false; CoinSelectionParams(bool use_bnb, size_t change_output_size, size_t change_spend_size, CFeeRate effective_fee, size_t tx_noinputs_size) : use_bnb(use_bnb), change_output_size(change_output_size), change_spend_size(change_spend_size), effective_fee(effective_fee), tx_noinputs_size(tx_noinputs_size) {} CoinSelectionParams() {} |