enable creating proofs for the claim trie
This commit is contained in:
Jimmy Kiselak
parent
c5b589c33d
commit
6a572c8307
3 changed files with 416 additions and 1 deletions
109
src/ncctrie.cpp
109
src/ncctrie.cpp
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@ -3,7 +3,7 @@
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#include <boost/scoped_ptr.hpp>
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uint256 CNodeValue::GetHash() const
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uint256 getOutPointHash(uint256 txhash, uint32_t nOut)
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{
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CHash256 valTxHasher;
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valTxHasher.Write(txhash.begin(), txhash.size());
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@ -28,6 +28,11 @@ uint256 CNodeValue::GetHash() const
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return valHash;
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}
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uint256 CNodeValue::GetHash() const
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{
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return getOutPointHash(txhash, nOut);
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}
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bool CNCCTrieNode::insertValue(CNodeValue val, bool * pfChanged)
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{
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LogPrintf("%s: Inserting %s:%d (amount: %d) into the ncc trie\n", __func__, val.txhash.ToString(), val.nOut, val.nAmount);
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@ -1267,3 +1272,105 @@ bool CNCCTrieCache::flush()
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}
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return success;
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}
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std::pair<std::string, CNCCTrieProofLeafNode> CNCCTrieCache::getLeafNodeForProof(const std::string& currentPosition, unsigned char nodeChar, const CNCCTrieNode* currentNode) const
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{
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std::stringstream leafPosition;
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leafPosition << currentPosition << nodeChar;
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hashMapType::iterator cachedHash = cacheHashes.find(leafPosition.str());
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if (cachedHash != cacheHashes.end())
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{
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return std::make_pair(leafPosition.str(), CNCCTrieProofLeafNode(cachedHash->second));
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}
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else
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{
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return std::make_pair(leafPosition.str(), CNCCTrieProofLeafNode(currentNode->hash));
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}
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}
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CNCCTrieProof CNCCTrieCache::getProofForName(const std::string& name) const
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{
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if (dirty())
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getMerkleHash();
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std::map<std::string, CNCCTrieProofNode> nodes;
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std::map<std::string, CNCCTrieProofLeafNode> leafNodes;
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CNCCTrieNode* current = &(base->root);
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nodeCacheType::const_iterator cachedNode;
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CNodeValue nameVal;
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bool fNameHasValue;
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uint256 txhash;
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uint32_t nOut;
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for (std::string::const_iterator itName = name.begin(); itName != name.end(); ++itName)
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{
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std::string currentPosition(name.begin(), itName);
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cachedNode = cache.find(currentPosition);
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if (cachedNode != cache.end())
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current = cachedNode->second;
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hashMapType::const_iterator cachedHash = cacheHashes.find(currentPosition);
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uint256 nodeHash;
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if (cachedHash != cacheHashes.end())
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nodeHash = cachedHash->second;
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else
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nodeHash = current->hash;
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CNodeValue val;
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bool fNodeHasValue = current->getBestValue(val);
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uint256 valHash;
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if (fNodeHasValue)
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valHash = val.GetHash();
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std::vector<unsigned char> child_chars;
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CNCCTrieNode* nextCurrent = NULL;
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for (nodeMapType::const_iterator itChildren = current->children.begin(); itChildren != current->children.end(); ++itChildren)
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{
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child_chars.push_back(itChildren->first);
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if (itChildren->first != *itName) // Leaf node
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{
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std::pair<std::string, CNCCTrieProofLeafNode> leaf = getLeafNodeForProof(currentPosition, itChildren->first, itChildren->second);
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leafNodes[leaf.first] = leaf.second;
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}
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else // Full node
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{
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nextCurrent = itChildren->second;
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}
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}
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nodes[currentPosition] = CNCCTrieProofNode(child_chars, fNodeHasValue, valHash, nodeHash);
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current = nextCurrent;
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if (current == NULL)
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break;
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}
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if (current != NULL)
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{
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cachedNode = cache.find(name);
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if (cachedNode != cache.end())
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current = cachedNode->second;
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hashMapType::const_iterator cachedHash = cacheHashes.find(name);
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uint256 nodeHash;
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if (cachedHash != cacheHashes.end())
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nodeHash = cachedHash->second;
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else
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nodeHash = current->hash;
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fNameHasValue = current->getBestValue(nameVal);
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uint256 valHash;
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if (fNameHasValue)
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{
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txhash = nameVal.txhash;
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nOut = nameVal.nOut;
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valHash = nameVal.GetHash();
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}
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else
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nOut = 0;
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std::vector<unsigned char> child_chars;
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for (nodeMapType::const_iterator itChildren = current->children.begin(); itChildren != current->children.end(); ++itChildren)
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{
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child_chars.push_back(itChildren->first);
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std::pair<std::string, CNCCTrieProofLeafNode> leaf = getLeafNodeForProof(name, itChildren->first, itChildren->second);
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leafNodes[leaf.first] = leaf.second;
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}
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nodes[name] = CNCCTrieProofNode(child_chars, fNameHasValue, valHash, nodeHash);
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}
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else
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{
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fNameHasValue = false;
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nOut = 0;
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}
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return CNCCTrieProof(nodes, leafNodes, fNameHasValue, txhash, nOut);
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}
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@ -16,6 +16,8 @@
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#define DEFAULT_DELAY 100
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uint256 getOutPointHash(uint256 txhash, uint32_t nOut);
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class CNodeValue
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{
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public:
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@ -199,6 +201,37 @@ private:
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void BatchWriteExpirationQueueRows(CLevelDBBatch& batch);
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};
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class CNCCTrieProofNode
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{
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public:
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CNCCTrieProofNode() {};
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CNCCTrieProofNode(std::vector<unsigned char> children, bool hasValue, uint256 valHash, uint256 nodeHash) : children(children), hasValue(hasValue), valHash(valHash), nodeHash(nodeHash) {};
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std::vector<unsigned char> children;
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bool hasValue;
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uint256 valHash;
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uint256 nodeHash;
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};
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class CNCCTrieProofLeafNode
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{
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public:
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CNCCTrieProofLeafNode() {};
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CNCCTrieProofLeafNode(uint256 nodeHash) : nodeHash(nodeHash) {};
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uint256 nodeHash;
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};
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class CNCCTrieProof
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{
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public:
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CNCCTrieProof() {};
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CNCCTrieProof(std::map<std::string, CNCCTrieProofNode> nodes, std::map<std::string, CNCCTrieProofLeafNode> leafNodes, bool hasValue, uint256 txhash, uint32_t nOut) : nodes(nodes), leafNodes(leafNodes), hasValue(hasValue), txhash(txhash), nOut(nOut) {}
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std::map<std::string, CNCCTrieProofNode> nodes;
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std::map<std::string, CNCCTrieProofLeafNode> leafNodes;
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bool hasValue;
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uint256 txhash;
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uint32_t nOut;
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};
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class CNCCTrieCache
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{
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public:
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@ -219,6 +252,7 @@ public:
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~CNCCTrieCache() { clear(); }
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bool insertClaimIntoTrie(const std::string name, CNodeValue val) const;
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bool removeClaimFromTrie(const std::string name, uint256 txhash, uint32_t nOut, int& nValidAtHeight) const;
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CNCCTrieProof getProofForName(const std::string& name) const;
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private:
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CNCCTrie* base;
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mutable nodeCacheType cache;
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@ -239,6 +273,7 @@ private:
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void removeFromExpirationQueue(const std::string name, uint256 txhash, uint32_t nOut, int nHeight) const;
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valueQueueType::iterator getQueueCacheRow(int nHeight, bool createIfNotExists) const;
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valueQueueType::iterator getExpirationQueueCacheRow(int nHeight, bool createIfNotExists) const;
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std::pair<std::string, CNCCTrieProofLeafNode> getLeafNodeForProof(const std::string& currentPosition, unsigned char nodeChar, const CNCCTrieNode* currentNode) const;
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uint256 hashBlock;
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};
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@ -163,6 +163,30 @@ const unsigned int expire_nonces[] = {
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120057, 8823, 5430, 44579, 61385, 84720, 64857, 70478, 116285, 8904,
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63423};
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const unsigned int proof_nonces[] = {
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54804, 229797, 119107, 77644, 9782, 104842, 72332, 47116, 363729, 170598,
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434, 48775, 15164, 51638, 63813, 21028, 31896, 117216, 26019, 7458,
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101082, 48571, 84174, 56983, 4607, 176131, 60681, 11348, 42867, 152045,
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162526, 48222, 9115, 162702, 7084, 49303, 34393, 67035, 72372, 81712,
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58846, 123668, 37484, 69474, 77333, 104992, 71743, 9675, 12363, 39457,
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29256, 190978, 55083, 171352, 82498, 94184, 110307, 25965, 53432, 193885,
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3633, 74876, 15957, 252915, 119231, 32149, 84494, 139388, 141968, 9092,
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216682, 4336, 62779, 24742, 46920, 249663, 223300, 64403, 128849, 56433,
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30665, 174236, 77179, 18440, 217216, 45037, 35402, 135703, 15338, 126459,
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14097, 21840, 1175, 37591, 82927, 37893, 121151, 54253, 15384, 2192,
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12708, 74849, 39787, 15685, 37774, 13139, 34776, 159887, 6814, 3021,
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53901, 24286, 110415, 72451, 130820, 111543, 1300, 98281, 48336, 220704,
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51457, 91510, 148670, 41904, 16121, 41743, 63992, 27520, 15825, 108299,
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107508, 49504, 31499, 132824, 96172, 71483, 26828, 2545, 29227, 7846,
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114426, 221520, 9779, 594, 284222, 40381, 19645, 38653, 41721, 55469,
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16191, 7360, 42980, 36694, 13660, 72041, 1305, 83146, 92665, 15203,
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25428, 45068, 281892, 168851, 27104, 42352, 4321, 65234, 32459, 4261,
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101678, 29995, 34940, 34278, 169292, 24555, 20685, 44997, 42753, 21555,
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5974, 30, 59247, 17323, 10938, 78807, 17244, 68852, 17954, 26818,
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131893, 87813, 31242, 86553, 119319, 20972, 142663, 73972, 35525, 4782,
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20213, 13208, 35272, 229212, 203438,
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};
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BOOST_FIXTURE_TEST_SUITE(ncctrie_tests, TestingSetup)
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CMutableTransaction BuildTransaction(const uint256& prevhash)
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@ -1394,4 +1418,253 @@ BOOST_AUTO_TEST_CASE(ncctrienode_serialize_unserialize)
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BOOST_CHECK(n1 == n2);
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}
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bool verify_proof(CNCCTrieProof proof, uint256 rootHash, const std::string& name)
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{
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for (std::string::const_iterator itName = name.begin(); itName != name.end(); ++itName)
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{
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std::string currentPosition(name.begin(), itName);
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std::map<std::string, CNCCTrieProofNode>::const_iterator itNode = proof.nodes.find(currentPosition);
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if (itNode == proof.nodes.end())
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{
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return currentPosition != "" && !proof.hasValue;
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}
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std::vector<unsigned char> vchToHash;
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for (std::vector<unsigned char>::const_iterator itChildren = itNode->second.children.begin(); itChildren != itNode->second.children.end(); ++itChildren)
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{
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vchToHash.push_back(*itChildren);
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std::stringstream nextPosition;
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nextPosition << currentPosition << *itChildren;
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if (*itChildren == *itName)
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{
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std::map<std::string, CNCCTrieProofNode>::const_iterator itChildNode = proof.nodes.find(nextPosition.str());
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if (itChildNode == proof.nodes.end())
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{
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return false;
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}
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vchToHash.insert(vchToHash.end(), itChildNode->second.nodeHash.begin(), itChildNode->second.nodeHash.end());
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}
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else
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{
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std::map<std::string, CNCCTrieProofLeafNode>::const_iterator itChildNode = proof.leafNodes.find(nextPosition.str());
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if (itChildNode == proof.leafNodes.end())
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{
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return false;
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}
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vchToHash.insert(vchToHash.end(), itChildNode->second.nodeHash.begin(), itChildNode->second.nodeHash.end());
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}
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}
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if (itNode->second.hasValue)
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{
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vchToHash.insert(vchToHash.end(), itNode->second.valHash.begin(), itNode->second.valHash.end());
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}
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CHash256 hasher;
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std::vector<unsigned char> vchHash(hasher.OUTPUT_SIZE);
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hasher.Write(vchToHash.data(), vchToHash.size());
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hasher.Finalize(&(vchHash[0]));
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uint256 calculatedHash(vchHash);
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if (calculatedHash != itNode->second.nodeHash)
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{
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return false;
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}
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if (currentPosition == "" && calculatedHash != rootHash)
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{
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return false;
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}
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}
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std::map<std::string, CNCCTrieProofNode>::const_iterator itNode = proof.nodes.find(name);
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if (itNode == proof.nodes.end())
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{
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return name != "" && !proof.hasValue;
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}
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std::vector<unsigned char> vchToHash;
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for (std::vector<unsigned char>::const_iterator itChildren = itNode->second.children.begin(); itChildren != itNode->second.children.end(); ++itChildren)
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{
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vchToHash.push_back(*itChildren);
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std::stringstream nextPosition;
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nextPosition << name << *itChildren;
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std::map<std::string, CNCCTrieProofLeafNode>::const_iterator itChildNode = proof.leafNodes.find(nextPosition.str());
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if (itChildNode == proof.leafNodes.end())
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{
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return false;
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}
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vchToHash.insert(vchToHash.end(), itChildNode->second.nodeHash.begin(), itChildNode->second.nodeHash.end());
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}
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if (itNode->second.hasValue != proof.hasValue)
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{
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return false;
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}
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if (itNode->second.hasValue)
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{
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uint256 valHash = getOutPointHash(proof.txhash, proof.nOut);
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if (valHash != itNode->second.valHash)
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{
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return false;
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}
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vchToHash.insert(vchToHash.end(), valHash.begin(), valHash.end());
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}
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CHash256 hasher;
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std::vector<unsigned char> vchHash(hasher.OUTPUT_SIZE);
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hasher.Write(vchToHash.data(), vchToHash.size());
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hasher.Finalize(&(vchHash[0]));
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uint256 calculatedHash(vchHash);
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if (calculatedHash != itNode->second.nodeHash)
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{
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return false;
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}
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if (name == "" && calculatedHash != rootHash)
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{
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return false;
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}
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return true;
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}
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BOOST_AUTO_TEST_CASE(ncctrievalue_proof)
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{
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int block_counter = 0;
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bool find_nonces = false;
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BOOST_CHECK(pnccTrie->nCurrentHeight == chainActive.Height() + 1);
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CBlockTemplate *pblocktemplate;
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LOCK(cs_main);
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CScript scriptPubKey = CScript() << OP_TRUE;
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std::string sName1("a");
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std::string sValue1("testa");
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std::string sName2("abc");
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std::string sValue2("testabc");
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std::string sName3("abd");
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std::string sValue3("testabd");
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std::string sName4("zyx");
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std::string sValue4("testzyx");
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std::string sName5("zyxa");
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std::string sName6("omg");
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std::string sName7("");
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std::vector<unsigned char> vchName1(sName1.begin(), sName1.end());
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std::vector<unsigned char> vchValue1(sValue1.begin(), sValue1.end());
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std::vector<unsigned char> vchName2(sName2.begin(), sName2.end());
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std::vector<unsigned char> vchValue2(sValue2.begin(), sValue2.end());
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std::vector<unsigned char> vchName3(sName3.begin(), sName3.end());
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std::vector<unsigned char> vchValue3(sValue3.begin(), sValue3.end());
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std::vector<unsigned char> vchName4(sName4.begin(), sName4.end());
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std::vector<unsigned char> vchValue4(sValue4.begin(), sValue4.end());
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CNodeValue val;
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BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));
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pblocktemplate->block.hashPrevBlock = chainActive.Tip()->GetBlockHash();
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std::vector<CTransaction> coinbases;
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for (unsigned int i = 0; i < 104; ++i)
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{
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BOOST_CHECK(CreateBlock(pblocktemplate, find_nonces, proof_nonces[block_counter++]));
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if (coinbases.size() < 4)
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coinbases.push_back(CTransaction(pblocktemplate->block.vtx[0]));
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}
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delete pblocktemplate;
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CMutableTransaction tx1 = BuildTransaction(coinbases[0]);
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tx1.vout[0].scriptPubKey = CScript() << OP_CLAIM_NAME << vchName1 << vchValue1 << OP_2DROP << OP_DROP << OP_TRUE;
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CMutableTransaction tx2 = BuildTransaction(coinbases[1]);
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tx2.vout[0].scriptPubKey = CScript() << OP_CLAIM_NAME << vchName2 << vchValue2 << OP_2DROP << OP_DROP << OP_TRUE;
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CMutableTransaction tx3 = BuildTransaction(coinbases[2]);
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tx3.vout[0].scriptPubKey = CScript() << OP_CLAIM_NAME << vchName3 << vchValue3 << OP_2DROP << OP_DROP << OP_TRUE;
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CMutableTransaction tx4 = BuildTransaction(coinbases[3]);
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tx4.vout[0].scriptPubKey = CScript() << OP_CLAIM_NAME << vchName4 << vchValue4 << OP_2DROP << OP_DROP << OP_TRUE;
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std::vector<uint256> blocks_to_invalidate;
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// create a claim. verify the expiration event has been scheduled.
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AddToMempool(tx1);
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AddToMempool(tx2);
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AddToMempool(tx3);
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AddToMempool(tx4);
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BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));
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BOOST_CHECK(pblocktemplate->block.vtx.size() == 5);
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pblocktemplate->block.hashPrevBlock = chainActive.Tip()->GetBlockHash();
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BOOST_CHECK(CreateBlock(pblocktemplate, find_nonces, proof_nonces[block_counter++]));
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blocks_to_invalidate.push_back(pblocktemplate->block.hashPrevBlock);
|
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delete pblocktemplate;
|
||||
|
||||
BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));
|
||||
pblocktemplate->block.hashPrevBlock = chainActive.Tip()->GetBlockHash();
|
||||
for (unsigned int i = 1; i < 100; ++i)
|
||||
{
|
||||
BOOST_CHECK(CreateBlock(pblocktemplate, find_nonces, proof_nonces[block_counter++]));
|
||||
}
|
||||
delete pblocktemplate;
|
||||
|
||||
BOOST_CHECK(pnccTrie->empty());
|
||||
BOOST_CHECK(!pnccTrie->queueEmpty());
|
||||
|
||||
BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));
|
||||
pblocktemplate->block.hashPrevBlock = chainActive.Tip()->GetBlockHash();
|
||||
BOOST_CHECK(CreateBlock(pblocktemplate, find_nonces, proof_nonces[block_counter++]));
|
||||
delete pblocktemplate;
|
||||
|
||||
BOOST_CHECK(!pnccTrie->empty());
|
||||
BOOST_CHECK(pnccTrie->queueEmpty());
|
||||
BOOST_CHECK(pnccTrie->getInfoForName(sName1, val));
|
||||
BOOST_CHECK(val.txhash == tx1.GetHash());
|
||||
BOOST_CHECK(pnccTrie->getInfoForName(sName2, val));
|
||||
BOOST_CHECK(val.txhash == tx2.GetHash());
|
||||
BOOST_CHECK(pnccTrie->getInfoForName(sName3, val));
|
||||
BOOST_CHECK(val.txhash == tx3.GetHash());
|
||||
BOOST_CHECK(pnccTrie->getInfoForName(sName4, val));
|
||||
BOOST_CHECK(val.txhash == tx4.GetHash());
|
||||
|
||||
CNCCTrieCache cache(pnccTrie);
|
||||
|
||||
CNCCTrieProof proof;
|
||||
|
||||
proof = cache.getProofForName(sName1);
|
||||
BOOST_CHECK(verify_proof(proof, chainActive.Tip()->hashNCCTrie, sName1));
|
||||
BOOST_CHECK(proof.txhash == tx1.GetHash());
|
||||
BOOST_CHECK(proof.nOut == 0);
|
||||
|
||||
proof = cache.getProofForName(sName2);
|
||||
BOOST_CHECK(verify_proof(proof, chainActive.Tip()->hashNCCTrie, sName2));
|
||||
BOOST_CHECK(proof.txhash == tx2.GetHash());
|
||||
BOOST_CHECK(proof.nOut == 0);
|
||||
|
||||
proof = cache.getProofForName(sName3);
|
||||
BOOST_CHECK(verify_proof(proof, chainActive.Tip()->hashNCCTrie, sName3));
|
||||
BOOST_CHECK(proof.txhash == tx3.GetHash());
|
||||
BOOST_CHECK(proof.nOut == 0);
|
||||
|
||||
proof = cache.getProofForName(sName4);
|
||||
BOOST_CHECK(verify_proof(proof, chainActive.Tip()->hashNCCTrie, sName4));
|
||||
BOOST_CHECK(proof.txhash == tx4.GetHash());
|
||||
BOOST_CHECK(proof.nOut == 0);
|
||||
|
||||
proof = cache.getProofForName(sName5);
|
||||
BOOST_CHECK(verify_proof(proof, chainActive.Tip()->hashNCCTrie, sName5));
|
||||
BOOST_CHECK(proof.hasValue == false);
|
||||
|
||||
proof = cache.getProofForName(sName6);
|
||||
BOOST_CHECK(verify_proof(proof, chainActive.Tip()->hashNCCTrie, sName6));
|
||||
BOOST_CHECK(proof.hasValue == false);
|
||||
|
||||
proof = cache.getProofForName(sName7);
|
||||
BOOST_CHECK(verify_proof(proof, chainActive.Tip()->hashNCCTrie, sName7));
|
||||
BOOST_CHECK(proof.hasValue == false);
|
||||
|
||||
BOOST_CHECK(RemoveBlock(blocks_to_invalidate.back()));
|
||||
blocks_to_invalidate.pop_back();
|
||||
BOOST_CHECK(pnccTrie->empty());
|
||||
BOOST_CHECK(pnccTrie->queueEmpty());
|
||||
BOOST_CHECK(blocks_to_invalidate.empty());
|
||||
|
||||
}
|
||||
|
||||
BOOST_AUTO_TEST_SUITE_END()
|
||||
|
|
|
|||
Loading…
Reference in a new issue