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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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22
src/wallet.cpp
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@@ -16,7 +16,7 @@
using namespace std;
// Settings
int64_t nTransactionFee = DEFAULT_TRANSACTION_FEE;
CFeeRate payTxFee(DEFAULT_TRANSACTION_FEE);
bool bSpendZeroConfChange = true;
//////////////////////////////////////////////////////////////////////////////
@@ -1233,7 +1233,7 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, int64_t> >& vecSend,
{
LOCK2(cs_main, cs_wallet);
{
nFeeRet = nTransactionFee;
nFeeRet = payTxFee.GetFeePerK();
while (true)
{
wtxNew.vin.clear();
@@ -1246,7 +1246,7 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, int64_t> >& vecSend,
BOOST_FOREACH (const PAIRTYPE(CScript, int64_t)& s, vecSend)
{
CTxOut txout(s.second, s.first);
if (txout.IsDust(CTransaction::nMinRelayTxFee))
if (txout.IsDust(CTransaction::minRelayTxFee))
{
strFailReason = _("Transaction amount too small");
return false;
@@ -1272,16 +1272,6 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, int64_t> >& vecSend,
}
int64_t nChange = nValueIn - nValue - nFeeRet;
// The following if statement should be removed once enough miners
// have upgraded to the 0.9 GetMinFee() rules. Until then, this avoids
// creating free transactions that have change outputs less than
// CENT bitcoins.
if (nFeeRet < CTransaction::nMinTxFee && nChange > 0 && nChange < CENT)
{
int64_t nMoveToFee = min(nChange, CTransaction::nMinTxFee - nFeeRet);
nChange -= nMoveToFee;
nFeeRet += nMoveToFee;
}
if (nChange > 0)
{
@@ -1317,7 +1307,7 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, int64_t> >& vecSend,
// Never create dust outputs; if we would, just
// add the dust to the fee.
if (newTxOut.IsDust(CTransaction::nMinRelayTxFee))
if (newTxOut.IsDust(CTransaction::minRelayTxFee))
{
nFeeRet += nChange;
reservekey.ReturnKey();
@@ -1355,7 +1345,7 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, int64_t> >& vecSend,
dPriority = wtxNew.ComputePriority(dPriority, nBytes);
// Check that enough fee is included
int64_t nPayFee = nTransactionFee * (1 + (int64_t)nBytes / 1000);
int64_t nPayFee = payTxFee.GetFee(nBytes);
bool fAllowFree = AllowFree(dPriority);
int64_t nMinFee = GetMinFee(wtxNew, nBytes, fAllowFree, GMF_SEND);
if (nFeeRet < max(nPayFee, nMinFee))
@@ -1464,7 +1454,7 @@ string CWallet::SendMoneyToDestination(const CTxDestination& address, int64_t nV
// Check amount
if (nValue <= 0)
return _("Invalid amount");
if (nValue + nTransactionFee > GetBalance())
if (nValue > GetBalance())
return _("Insufficient funds");
// Parse Bitcoin address