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Type-safe CFeeRate class

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Use CFeeRate instead of an int64_t for quantities that are
fee-per-size.

Helps prevent unit-conversion mismatches between the wallet,
relaying, and mining code.
This commit is contained in:
Gavin Andresen
2014-04-10 14:14:18 -04:00
parent 345cb52e8b
commit c6cb21d17a
16 changed files with 123 additions and 115 deletions
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29
src/qt/coincontroldialog.cpp
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@@ -453,7 +453,7 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
CTxOut txout(amount, (CScript)vector<unsigned char>(24, 0));
txDummy.vout.push_back(txout);
if (txout.IsDust(CTransaction::nMinRelayTxFee))
if (txout.IsDust(CTransaction::minRelayTxFee))
fDust = true;
}
}
@@ -525,7 +525,7 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
sPriorityLabel = CoinControlDialog::getPriorityLabel(dPriority);
// Fee
int64_t nFee = nTransactionFee * (1 + (int64_t)nBytes / 1000);
int64_t nFee = payTxFee.GetFee(nBytes);
// Min Fee
int64_t nMinFee = GetMinFee(txDummy, nBytes, AllowFree(dPriority), GMF_SEND);
@@ -536,26 +536,11 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
{
nChange = nAmount - nPayFee - nPayAmount;
// if sub-cent change is required, the fee must be raised to at least CTransaction::nMinTxFee
if (nPayFee < CTransaction::nMinTxFee && nChange > 0 && nChange < CENT)
{
if (nChange < CTransaction::nMinTxFee) // change < 0.0001 => simply move all change to fees
{
nPayFee += nChange;
nChange = 0;
}
else
{
nChange = nChange + nPayFee - CTransaction::nMinTxFee;
nPayFee = CTransaction::nMinTxFee;
}
}
// Never create dust outputs; if we would, just add the dust to the fee.
if (nChange > 0 && nChange < CENT)
{
CTxOut txout(nChange, (CScript)vector<unsigned char>(24, 0));
if (txout.IsDust(CTransaction::nMinRelayTxFee))
if (txout.IsDust(CTransaction::minRelayTxFee))
{
nPayFee += nChange;
nChange = 0;
@@ -610,19 +595,19 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
// tool tips
QString toolTip1 = tr("This label turns red, if the transaction size is greater than 1000 bytes.") + "<br /><br />";
toolTip1 += tr("This means a fee of at least %1 per kB is required.").arg(BitcoinUnits::formatWithUnit(nDisplayUnit, CTransaction::nMinTxFee)) + "<br /><br />";
toolTip1 += tr("This means a fee of at least %1 per kB is required.").arg(BitcoinUnits::formatWithUnit(nDisplayUnit, CTransaction::minTxFee.GetFeePerK())) + "<br /><br />";
toolTip1 += tr("Can vary +/- 1 byte per input.");
QString toolTip2 = tr("Transactions with higher priority are more likely to get included into a block.") + "<br /><br />";
toolTip2 += tr("This label turns red, if the priority is smaller than \"medium\".") + "<br /><br />";
toolTip2 += tr("This means a fee of at least %1 per kB is required.").arg(BitcoinUnits::formatWithUnit(nDisplayUnit, CTransaction::nMinTxFee));
toolTip2 += tr("This means a fee of at least %1 per kB is required.").arg(BitcoinUnits::formatWithUnit(nDisplayUnit, CTransaction::minTxFee.GetFeePerK()));
QString toolTip3 = tr("This label turns red, if any recipient receives an amount smaller than %1.").arg(BitcoinUnits::formatWithUnit(nDisplayUnit, CENT)) + "<br /><br />";
toolTip3 += tr("This means a fee of at least %1 is required.").arg(BitcoinUnits::formatWithUnit(nDisplayUnit, CTransaction::nMinTxFee)) + "<br /><br />";
toolTip3 += tr("This means a fee of at least %1 is required.").arg(BitcoinUnits::formatWithUnit(nDisplayUnit, CTransaction::minTxFee.GetFeePerK())) + "<br /><br />";
toolTip3 += tr("Amounts below 0.546 times the minimum relay fee are shown as dust.");
QString toolTip4 = tr("This label turns red, if the change is smaller than %1.").arg(BitcoinUnits::formatWithUnit(nDisplayUnit, CENT)) + "<br /><br />";
toolTip4 += tr("This means a fee of at least %1 is required.").arg(BitcoinUnits::formatWithUnit(nDisplayUnit, CTransaction::nMinTxFee));
toolTip4 += tr("This means a fee of at least %1 is required.").arg(BitcoinUnits::formatWithUnit(nDisplayUnit, CTransaction::minTxFee.GetFeePerK()));
l5->setToolTip(toolTip1);
l6->setToolTip(toolTip2);