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Make signature cache optional

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This commit is contained in:
Pieter Wuille
2014-09-10 16:16:09 +02:00
parent c7829ea797
commit 5c1e798a8e
9 changed files with 155 additions and 88 deletions
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34
src/script/interpreter.h
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@@ -10,9 +10,10 @@
#include <stdint.h>
#include <string>
class uint256;
class CPubKey;
class CScript;
class CTransaction;
class uint256;
/** Signature hash types/flags */
enum
@@ -39,29 +40,32 @@ bool IsCanonicalSignature(const std::vector<unsigned char> &vchSig, unsigned int
uint256 SignatureHash(const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType);
class SignatureChecker
class BaseSignatureChecker
{
public:
virtual bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, int nFlags) const
{
return false;
}
virtual ~BaseSignatureChecker() {}
};
class SignatureChecker : public BaseSignatureChecker
{
private:
const CTransaction& txTo;
unsigned int nIn;
protected:
virtual bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash, int flags) const;
public:
SignatureChecker(const CTransaction& txToIn, unsigned int nInIn) : txTo(txToIn), nIn(nInIn) {}
bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, int nFlags) const;
};
bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const SignatureChecker& checker);
bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, unsigned int flags, const SignatureChecker& checker);
// Wrappers using a default SignatureChecker.
bool inline EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, const CTransaction& txTo, unsigned int nIn, unsigned int flags)
{
return EvalScript(stack, script, flags, SignatureChecker(txTo, nIn));
}
bool inline VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, unsigned int flags)
{
return VerifyScript(scriptSig, scriptPubKey, flags, SignatureChecker(txTo, nIn));
}
bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker);
bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, unsigned int flags, const BaseSignatureChecker& checker);
#endif // H_BITCOIN_SCRIPT_INTERPRETER