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-rw-r--r--src/wallet/wallet.cpp122
1 files changed, 65 insertions, 57 deletions
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 5db13ef02f..6f1894d430 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -2490,9 +2490,9 @@ bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nC
CReserveKey reservekey(this);
CWalletTx wtx;
- if (!CreateTransaction(vecSend, wtx, reservekey, nFeeRet, nChangePosInOut, strFailReason, &coinControl, false))
+ if (!CreateTransaction(vecSend, wtx, reservekey, nFeeRet, nChangePosInOut, strFailReason, coinControl, false)) {
return false;
-
+ }
if (nChangePosInOut != -1)
tx.vout.insert(tx.vout.begin() + nChangePosInOut, wtx.tx->vout[nChangePosInOut]);
@@ -2523,7 +2523,7 @@ bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nC
}
bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, CAmount& nFeeRet,
- int& nChangePosInOut, std::string& strFailReason, const CCoinControl* coinControl, bool sign)
+ int& nChangePosInOut, std::string& strFailReason, const CCoinControl& coin_control, bool sign)
{
CAmount nValue = 0;
int nChangePosRequest = nChangePosInOut;
@@ -2588,7 +2588,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
LOCK2(cs_main, cs_wallet);
{
std::vector<COutput> vAvailableCoins;
- AvailableCoins(vAvailableCoins, true, coinControl);
+ AvailableCoins(vAvailableCoins, true, &coin_control);
// Create change script that will be used if we need change
// TODO: pass in scriptChange instead of reservekey so
@@ -2596,12 +2596,9 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
CScript scriptChange;
// coin control: send change to custom address
- if (coinControl && !boost::get<CNoDestination>(&coinControl->destChange))
- scriptChange = GetScriptForDestination(coinControl->destChange);
-
- // no coin control: send change to newly generated address
- else
- {
+ if (!boost::get<CNoDestination>(&coin_control.destChange)) {
+ scriptChange = GetScriptForDestination(coin_control.destChange);
+ } else { // no coin control: send change to newly generated address
// Note: We use a new key here to keep it from being obvious which side is the change.
// The drawback is that by not reusing a previous key, the change may be lost if a
// backup is restored, if the backup doesn't have the new private key for the change.
@@ -2675,7 +2672,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
if (pick_new_inputs) {
nValueIn = 0;
setCoins.clear();
- if (!SelectCoins(vAvailableCoins, nValueToSelect, setCoins, nValueIn, coinControl))
+ if (!SelectCoins(vAvailableCoins, nValueToSelect, setCoins, nValueIn, &coin_control))
{
strFailReason = _("Insufficient funds");
return false;
@@ -2726,8 +2723,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
// to avoid conflicting with other possible uses of nSequence,
// and in the spirit of "smallest possible change from prior
// behavior."
- bool rbf = coinControl ? coinControl->signalRbf : fWalletRbf;
- const uint32_t nSequence = rbf ? MAX_BIP125_RBF_SEQUENCE : (std::numeric_limits<unsigned int>::max() - 1);
+ const uint32_t nSequence = coin_control.signalRbf ? MAX_BIP125_RBF_SEQUENCE : (std::numeric_limits<unsigned int>::max() - 1);
for (const auto& coin : setCoins)
txNew.vin.push_back(CTxIn(coin.outpoint,CScript(),
nSequence));
@@ -2746,17 +2742,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
vin.scriptWitness.SetNull();
}
- // Allow to override the default confirmation target over the CoinControl instance
- int currentConfirmationTarget = nTxConfirmTarget;
- if (coinControl && coinControl->nConfirmTarget > 0)
- currentConfirmationTarget = coinControl->nConfirmTarget;
-
- // Allow to override the default fee estimate mode over the CoinControl instance
- bool conservative_estimate = CalculateEstimateType(coinControl ? coinControl->m_fee_mode : FeeEstimateMode::UNSET, rbf);
-
- CAmount nFeeNeeded = GetMinimumFee(nBytes, currentConfirmationTarget, ::mempool, ::feeEstimator, &feeCalc, false /* ignoreGlobalPayTxFee */, conservative_estimate);
- if (coinControl && coinControl->fOverrideFeeRate)
- nFeeNeeded = coinControl->nFeeRate.GetFee(nBytes);
+ CAmount 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.
@@ -2781,7 +2767,7 @@ 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, currentConfirmationTarget, ::mempool, ::feeEstimator, nullptr, false /* ignoreGlobalPayTxFee */, conservative_estimate);
+ CAmount fee_needed_for_change = GetMinimumFee(change_prototype_size, coin_control, ::mempool, ::feeEstimator, nullptr);
CAmount minimum_value_for_change = GetDustThreshold(change_prototype_txout, ::dustRelayFee);
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) {
@@ -2957,33 +2943,61 @@ CAmount CWallet::GetRequiredFee(unsigned int nTxBytes)
return std::max(minTxFee.GetFee(nTxBytes), ::minRelayTxFee.GetFee(nTxBytes));
}
-CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarget, const CTxMemPool& pool, const CBlockPolicyEstimator& estimator, FeeCalculation *feeCalc, bool ignoreGlobalPayTxFee, bool conservative_estimate)
+CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, const CCoinControl& coin_control, const CTxMemPool& pool, const CBlockPolicyEstimator& estimator, FeeCalculation *feeCalc)
{
- // payTxFee is the user-set global for desired feerate
- CAmount nFeeNeeded = payTxFee.GetFee(nTxBytes);
- // User didn't set: use -txconfirmtarget to estimate...
- if (nFeeNeeded == 0 || ignoreGlobalPayTxFee) {
- nFeeNeeded = estimator.estimateSmartFee(nConfirmTarget, feeCalc, pool, conservative_estimate).GetFee(nTxBytes);
- // ... unless we don't have enough mempool data for estimatefee, then use fallbackFee
- if (nFeeNeeded == 0) {
- nFeeNeeded = fallbackFee.GetFee(nTxBytes);
+ /* User control of how to calculate fee uses the following parameter precedence:
+ 1. coin_control.m_feerate
+ 2. coin_control.m_confirm_target
+ 3. payTxFee (user-set global variable)
+ 4. nTxConfirmTarget (user-set global variable)
+ The first parameter that is set is used.
+ */
+ CAmount fee_needed;
+ if (coin_control.m_feerate) { // 1.
+ fee_needed = coin_control.m_feerate->GetFee(nTxBytes);
+ if (feeCalc) feeCalc->reason = FeeReason::PAYTXFEE;
+ // Allow to override automatic min/max check over coin control instance
+ if (coin_control.fOverrideFeeRate) return fee_needed;
+ }
+ else if (!coin_control.m_confirm_target && ::payTxFee != CFeeRate(0)) { // 3. TODO: remove magic value of 0 for global payTxFee
+ fee_needed = ::payTxFee.GetFee(nTxBytes);
+ if (feeCalc) feeCalc->reason = FeeReason::PAYTXFEE;
+ }
+ else { // 2. or 4.
+ // We will use smart fee estimation
+ unsigned int target = coin_control.m_confirm_target ? *coin_control.m_confirm_target : ::nTxConfirmTarget;
+ // By default estimates are economical iff we are signaling opt-in-RBF
+ bool conservative_estimate = !coin_control.signalRbf;
+ // Allow to override the default fee estimate mode over the CoinControl instance
+ if (coin_control.m_fee_mode == FeeEstimateMode::CONSERVATIVE) conservative_estimate = true;
+ else if (coin_control.m_fee_mode == FeeEstimateMode::ECONOMICAL) conservative_estimate = false;
+
+ fee_needed = estimator.estimateSmartFee(target, feeCalc, conservative_estimate).GetFee(nTxBytes);
+ if (fee_needed == 0) {
+ // if we don't have enough data for estimateSmartFee, then use fallbackFee
+ fee_needed = fallbackFee.GetFee(nTxBytes);
if (feeCalc) feeCalc->reason = FeeReason::FALLBACK;
}
- } else {
- if (feeCalc) feeCalc->reason = FeeReason::PAYTXFEE;
+ // Obey mempool min fee when using smart fee estimation
+ CAmount min_mempool_fee = pool.GetMinFee(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFee(nTxBytes);
+ if (fee_needed < min_mempool_fee) {
+ fee_needed = min_mempool_fee;
+ if (feeCalc) feeCalc->reason = FeeReason::MEMPOOL_MIN;
+ }
}
+
// prevent user from paying a fee below minRelayTxFee or minTxFee
- CAmount requiredFee = GetRequiredFee(nTxBytes);
- if (requiredFee > nFeeNeeded) {
- nFeeNeeded = requiredFee;
+ CAmount required_fee = GetRequiredFee(nTxBytes);
+ if (required_fee > fee_needed) {
+ fee_needed = required_fee;
if (feeCalc) feeCalc->reason = FeeReason::REQUIRED;
}
// But always obey the maximum
- if (nFeeNeeded > maxTxFee) {
- nFeeNeeded = maxTxFee;
+ if (fee_needed > maxTxFee) {
+ fee_needed = maxTxFee;
if (feeCalc) feeCalc->reason = FeeReason::MAXTXFEE;
}
- return nFeeNeeded;
+ return fee_needed;
}
@@ -4073,13 +4087,19 @@ bool CWallet::ParameterInteraction()
}
}
- // -zapwallettx implies a rescan
- if (GetBoolArg("-zapwallettxes", false)) {
+ int zapwallettxes = GetArg("-zapwallettxes", 0);
+ // -zapwallettxes implies dropping the mempool on startup
+ if (zapwallettxes != 0 && SoftSetBoolArg("-persistmempool", false)) {
+ LogPrintf("%s: parameter interaction: -zapwallettxes=%s -> setting -persistmempool=0\n", __func__, zapwallettxes);
+ }
+
+ // -zapwallettxes implies a rescan
+ if (zapwallettxes != 0) {
if (is_multiwallet) {
return InitError(strprintf("%s is only allowed with a single wallet file", "-zapwallettxes"));
}
if (SoftSetBoolArg("-rescan", true)) {
- LogPrintf("%s: parameter interaction: -zapwallettxes=<mode> -> setting -rescan=1\n", __func__);
+ LogPrintf("%s: parameter interaction: -zapwallettxes=%s -> setting -rescan=1\n", __func__, zapwallettxes);
}
}
@@ -4219,15 +4239,3 @@ bool CMerkleTx::AcceptToMemoryPool(const CAmount& nAbsurdFee, CValidationState&
{
return ::AcceptToMemoryPool(mempool, state, tx, true, NULL, NULL, false, nAbsurdFee);
}
-
-bool CalculateEstimateType(FeeEstimateMode mode, bool opt_in_rbf) {
- switch (mode) {
- case FeeEstimateMode::UNSET:
- return !opt_in_rbf; // Allow for lower fees if RBF is an option
- case FeeEstimateMode::CONSERVATIVE:
- return true;
- case FeeEstimateMode::ECONOMICAL:
- return false;
- }
- return true;
-}
generated by cgit v1.2.3 (git 2.26.2) at 2024-08-21 08:19:09 +0000