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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2013 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef H_BITCOIN_SCRIPT_SIGCACHE
#define H_BITCOIN_SCRIPT_SIGCACHE
#include "script/interpreter.h"
#include <vector>
class CPubKey;
class CachingSignatureChecker : public SignatureChecker
{
public:
CachingSignatureChecker(const CTransaction& txToIn, unsigned int nInIn) : SignatureChecker(txToIn, nInIn) {}
bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash, int flags) const;
};
// 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, CachingSignatureChecker(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, CachingSignatureChecker(txTo, nIn));
}
#endif
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