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Rename to PrecomputedTransactionData

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This commit is contained in:
Pieter Wuille
2016-08-26 18:38:20 +02:00
committed by lateminer
parent d8d19c532f
commit cd30f2becb
8 changed files with 39 additions and 34 deletions
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4
src/script/bitcoinconsensus.cpp
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@@ -84,9 +84,9 @@ int bitcoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned i
// Regardless of the verification result, the tx did not error.
set_error(err, bitcoinconsensus_ERR_OK);
CachedHashes cachedHashes(tx);
PrecomputedTransactionData txdata(tx);
CAmount amount(0);
return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), flags, TransactionSignatureChecker(&tx, nIn, amount, cachedHashes), NULL);
return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), flags, TransactionSignatureChecker(&tx, nIn, amount, txdata), NULL);
} catch (const std::exception&) {
return set_error(err, bitcoinconsensus_ERR_TX_DESERIALIZE); // Error deserializing
}

6
src/script/interpreter.cpp
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@@ -1166,14 +1166,14 @@ uint256 GetOutputsHash(const CTransaction& txTo) {
} // anon namespace
CachedHashes::CachedHashes(const CTransaction& txTo)
PrecomputedTransactionData::PrecomputedTransactionData(const CTransaction& txTo)
{
hashPrevouts = GetPrevoutHash(txTo);
hashSequence = GetSequenceHash(txTo);
hashOutputs = GetOutputsHash(txTo);
}
uint256 SignatureHash(const CScript& scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType, const CAmount& amount, const CachedHashes* cache)
uint256 SignatureHash(const CScript& scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType, const CAmount& amount, const PrecomputedTransactionData* cache)
{
static const uint256 one(uint256S("0000000000000000000000000000000000000000000000000000000000000001"));
if (nIn >= txTo.vin.size()) {
@@ -1216,7 +1216,7 @@ bool TransactionSignatureChecker::CheckSig(const vector<unsigned char>& vchSigIn
int nHashType = vchSig.back();
vchSig.pop_back();
uint256 sighash = SignatureHash(scriptCode, *txTo, nIn, nHashType, amount, this->cachedHashes);
uint256 sighash = SignatureHash(scriptCode, *txTo, nIn, nHashType, amount, this->txdata);
if (!VerifySignature(vchSig, pubkey, sighash))
return false;

13
src/script/interpreter.h
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@@ -102,6 +102,13 @@ enum
bool CheckSignatureEncoding(const std::vector<unsigned char> &vchSig, unsigned int flags, ScriptError* serror);
struct PrecomputedTransactionData
{
uint256 hashPrevouts, hashSequence, hashOutputs;
PrecomputedTransactionData(const CTransaction& tx);
};
uint256 SignatureHash(const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType, const CAmount& amount, const PrecomputedTransactionData* cache = NULL);
class BaseSignatureChecker
@@ -131,14 +138,14 @@ private:
const CTransaction* txTo;
unsigned int nIn;
const CAmount amount;
const CachedHashes* cachedHashes;
const PrecomputedTransactionData* txdata;
protected:
virtual bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const;
public:
TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amount) : txTo(txToIn), nIn(nInIn), amount(amountIn), cachedHashes(NULL) {}
TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, const CachedHashes& cachedHashesIn) : txTo(txToIn), nIn(nInIn), amount(amountIn), cachedHashes(&cachedHashesIn) {}
TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn) : txTo(txToIn), nIn(nInIn), amount(amountIn), txdata(NULL) {}
TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, const PrecomputedTransactionData& txdataIn) : txTo(txToIn), nIn(nInIn), amount(amountIn), txdata(&txdataIn) {}
bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode) const;
bool CheckLockTime(const CScriptNum& nLockTime) const;
bool CheckSequence(const CScriptNum& nSequence) const;

2
src/script/sigcache.h
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@@ -22,7 +22,7 @@ private:
bool store;
public:
CachingTransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amount, bool storeIn, CachedHashes& cachedHashesIn) : TransactionSignatureChecker(txToIn, nInIn, amount, cachedHashesIn), store(storeIn) {}
CachingTransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amount, bool storeIn, PrecomputedTransactionData& txdataIn) : TransactionSignatureChecker(txToIn, nInIn, amount, txdataIn), store(storeIn) {}
bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const;
};