diff options
Diffstat (limited to 'src/wallet/wallet.cpp')
| -rw-r--r-- | src/wallet/wallet.cpp | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index c926f0159f..3cb0c308fd 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -2612,6 +2612,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT assert(txNew.nLockTime <= (unsigned int)chainActive.Height()); assert(txNew.nLockTime < LOCKTIME_THRESHOLD); FeeCalculation feeCalc; + CAmount nFeeNeeded; unsigned int nBytes; { std::set<CInputCoin> setCoins; @@ -2773,7 +2774,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT vin.scriptWitness.SetNull(); } - CAmount nFeeNeeded = GetMinimumFee(nBytes, coin_control, ::mempool, ::feeEstimator, &feeCalc); + nFeeNeeded = GetMinimumFee(nBytes, coin_control, ::mempool, ::feeEstimator, &feeCalc); // If we made it here and we aren't even able to meet the relay fee on the next pass, give up // because we must be at the maximum allowed fee. @@ -2794,13 +2795,15 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT // new inputs. We now know we only need the smaller fee // (because of reduced tx size) and so we should add a // change output. Only try this once. - CAmount fee_needed_for_change = GetMinimumFee(change_prototype_size, coin_control, ::mempool, ::feeEstimator, nullptr); - CAmount minimum_value_for_change = GetDustThreshold(change_prototype_txout, discard_rate); - CAmount max_excess_fee = fee_needed_for_change + minimum_value_for_change; - if (nFeeRet > nFeeNeeded + max_excess_fee && nChangePosInOut == -1 && nSubtractFeeFromAmount == 0 && pick_new_inputs) { - pick_new_inputs = false; - nFeeRet = nFeeNeeded + fee_needed_for_change; - continue; + if (nChangePosInOut == -1 && nSubtractFeeFromAmount == 0 && pick_new_inputs) { + unsigned int tx_size_with_change = nBytes + change_prototype_size + 2; // Add 2 as a buffer in case increasing # of outputs changes compact size + CAmount fee_needed_with_change = GetMinimumFee(tx_size_with_change, coin_control, ::mempool, ::feeEstimator, nullptr); + CAmount minimum_value_for_change = GetDustThreshold(change_prototype_txout, discard_rate); + if (nFeeRet >= fee_needed_with_change + minimum_value_for_change) { + pick_new_inputs = false; + nFeeRet = fee_needed_with_change; + continue; + } } // If we have change output already, just increase it @@ -2895,8 +2898,8 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT } } - LogPrintf("Fee Calculation: Fee:%d Bytes:%u Tgt:%d (requested %d) Reason:\"%s\" Decay %.5f: Estimation: (%g - %g) %.2f%% %.1f/(%.1f %d mem %.1f out) Fail: (%g - %g) %.2f%% %.1f/(%.1f %d mem %.1f out)\n", - nFeeRet, nBytes, feeCalc.returnedTarget, feeCalc.desiredTarget, StringForFeeReason(feeCalc.reason), feeCalc.est.decay, + LogPrintf("Fee Calculation: Fee:%d Bytes:%u Needed:%d Tgt:%d (requested %d) Reason:\"%s\" Decay %.5f: Estimation: (%g - %g) %.2f%% %.1f/(%.1f %d mem %.1f out) Fail: (%g - %g) %.2f%% %.1f/(%.1f %d mem %.1f out)\n", + nFeeRet, nBytes, nFeeNeeded, feeCalc.returnedTarget, feeCalc.desiredTarget, StringForFeeReason(feeCalc.reason), feeCalc.est.decay, feeCalc.est.pass.start, feeCalc.est.pass.end, 100 * feeCalc.est.pass.withinTarget / (feeCalc.est.pass.totalConfirmed + feeCalc.est.pass.inMempool + feeCalc.est.pass.leftMempool), feeCalc.est.pass.withinTarget, feeCalc.est.pass.totalConfirmed, feeCalc.est.pass.inMempool, feeCalc.est.pass.leftMempool, |