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Cache witness hash in CTransaction

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This commit is contained in:
MarcoFalke
2018-04-09 19:16:24 -04:00
parent faab55fbb1
commit fac1223a56
2 changed files with 9 additions and 11 deletions
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10
src/primitives/transaction.cpp
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@@ -67,18 +67,18 @@ uint256 CTransaction::ComputeHash() const
return SerializeHash(*this, SER_GETHASH, SERIALIZE_TRANSACTION_NO_WITNESS);
}
uint256 CTransaction::GetWitnessHash() const
uint256 CTransaction::ComputeWitnessHash() const
{
if (!HasWitness()) {
return GetHash();
return hash;
}
return SerializeHash(*this, SER_GETHASH, 0);
}
/* For backward compatibility, the hash is initialized to 0. TODO: remove the need for this default constructor entirely. */
CTransaction::CTransaction() : vin(), vout(), nVersion(CTransaction::CURRENT_VERSION), nLockTime(0), hash() {}
CTransaction::CTransaction(const CMutableTransaction &tx) : vin(tx.vin), vout(tx.vout), nVersion(tx.nVersion), nLockTime(tx.nLockTime), hash(ComputeHash()) {}
CTransaction::CTransaction(CMutableTransaction &&tx) : vin(std::move(tx.vin)), vout(std::move(tx.vout)), nVersion(tx.nVersion), nLockTime(tx.nLockTime), hash(ComputeHash()) {}
CTransaction::CTransaction() : vin(), vout(), nVersion(CTransaction::CURRENT_VERSION), nLockTime(0), hash{}, m_witness_hash{} {}
CTransaction::CTransaction(const CMutableTransaction& tx) : vin(tx.vin), vout(tx.vout), nVersion(tx.nVersion), nLockTime(tx.nLockTime), hash{ComputeHash()}, m_witness_hash{ComputeWitnessHash()} {}
CTransaction::CTransaction(CMutableTransaction&& tx) : vin(std::move(tx.vin)), vout(std::move(tx.vout)), nVersion(tx.nVersion), nLockTime(tx.nLockTime), hash{ComputeHash()}, m_witness_hash{ComputeWitnessHash()} {}
CAmount CTransaction::GetValueOut() const
{