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Add CMutableTransaction and make CTransaction immutable.

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In addition, introduce a cached hash inside CTransaction, to prevent
recalculating it over and over again.
This commit is contained in:
Pieter Wuille
2014-06-07 13:53:27 +02:00
parent 8f59251b83
commit 4949004d68
19 changed files with 181 additions and 106 deletions
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25
src/core.cpp
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@@ -91,11 +91,34 @@ std::string CFeeRate::ToString() const
return result;
}
uint256 CTransaction::GetHash() const
CMutableTransaction::CMutableTransaction() : nVersion(CTransaction::CURRENT_VERSION), nLockTime(0) {}
CMutableTransaction::CMutableTransaction(const CTransaction& tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), nLockTime(tx.nLockTime) {}
uint256 CMutableTransaction::GetHash() const
{
return SerializeHash(*this);
}
void CTransaction::UpdateHash() const
{
*const_cast<uint256*>(&hash) = SerializeHash(*this);
}
CTransaction::CTransaction() : hash(0), nVersion(CTransaction::CURRENT_VERSION), vin(), vout(), nLockTime(0) { }
CTransaction::CTransaction(const CMutableTransaction &tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), nLockTime(tx.nLockTime) {
UpdateHash();
}
CTransaction& CTransaction::operator=(const CTransaction &tx) {
*const_cast<int*>(&nVersion) = tx.nVersion;
*const_cast<std::vector<CTxIn>*>(&vin) = tx.vin;
*const_cast<std::vector<CTxOut>*>(&vout) = tx.vout;
*const_cast<unsigned int*>(&nLockTime) = tx.nLockTime;
*const_cast<uint256*>(&hash) = tx.hash;
return *this;
}
int64_t CTransaction::GetValueOut() const
{
int64_t nValueOut = 0;