Differential D2409 Diff 6944 src/script/sigcache.cpp

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src/script/sigcache.cpp

Show First 20 Lines • Show All 74 Lines • ▼ Show 20 Lines	size_t nMaxCacheSize =
MAX_MAX_SIG_CACHE_SIZE) *		MAX_MAX_SIG_CACHE_SIZE) *
(size_t(1) << 20);		(size_t(1) << 20);
size_t nElems = signatureCache.setup_bytes(nMaxCacheSize);		size_t nElems = signatureCache.setup_bytes(nMaxCacheSize);
LogPrintf("Using %zu MiB out of %zu requested for signature cache, able to "		LogPrintf("Using %zu MiB out of %zu requested for signature cache, able to "
"store %zu elements\n",		"store %zu elements\n",
(nElems * sizeof(uint256)) >> 20, nMaxCacheSize >> 20, nElems);		(nElems * sizeof(uint256)) >> 20, nMaxCacheSize >> 20, nElems);
}		}

bool CachingTransactionSignatureChecker::VerifySignature(		template <typename F>
const std::vector<uint8_t> &vchSig, const CPubKey &pubkey,		bool RunMemoizedCheck(const std::vector<uint8_t> &vchSig, const CPubKey &pubkey,
const uint256 &sighash) const {		const uint256 &sighash, bool storeOrErase, const F &fun) {
uint256 entry;		uint256 entry;
signatureCache.ComputeEntry(entry, sighash, vchSig, pubkey);		signatureCache.ComputeEntry(entry, sighash, vchSig, pubkey);
if (signatureCache.Get(entry, !store)) {		if (signatureCache.Get(entry, !storeOrErase)) {
return true;		return true;
}		}
if (!TransactionSignatureChecker::VerifySignature(vchSig, pubkey,		if (!fun()) {
sighash)) {
return false;		return false;
}		}
if (store) {		if (storeOrErase) {
signatureCache.Set(entry);		signatureCache.Set(entry);
}		}
return true;		return true;
}		}

		bool CachingTransactionSignatureChecker::IsCached(
		const std::vector<uint8_t> &vchSig, const CPubKey &pubkey,
		const uint256 &sighash) const {
		return RunMemoizedCheck(vchSig, pubkey, sighash, true,
		[] { return false; });
		}

		bool CachingTransactionSignatureChecker::VerifySignature(
		const std::vector<uint8_t> &vchSig, const CPubKey &pubkey,
		const uint256 &sighash) const {
		return RunMemoizedCheck(vchSig, pubkey, sighash, store, [&] {
		return TransactionSignatureChecker::VerifySignature(vchSig, pubkey,
		sighash);
		});
		}