hacktober fest #214
4 changed files with 283 additions and 51 deletions
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@ -1695,29 +1695,20 @@ bool CClaimTrieCache::removeClaim(const std::string& name, const COutPoint& outP
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if (removed == true)
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{
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nValidAtHeight = claim.nValidAtHeight;
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removeFromExpirationQueue(name, outPoint, nHeight);
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int expirationHeight = nHeight + base->nExpirationTime;
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removeFromExpirationQueue(name, outPoint, expirationHeight);
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}
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return removed;
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}
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void CClaimTrieCache::addToExpirationQueue(int nExpirationHeight, nameOutPointType& entry) const
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{
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// NOTE: To disable expiration completely after fork, set this define to enable check
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// #define CLAIM_EXPIRATION_DISABLED_AFTER_FORK
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#ifdef CLAIM_EXPIRATION_DISABLED_AFTER_FORK
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const Consensus::Params& consensusParams = Params().GetConsensus();
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if ((nExpirationHeight < consensusParams.nExtendedClaimExpirationForkHeight) ||
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(base->nCurrentHeight < consensusParams.nExtendedClaimExpirationForkHeight))
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#endif
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{
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expirationQueueType::iterator itQueueRow = getExpirationQueueCacheRow(nExpirationHeight, true);
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itQueueRow->second.push_back(entry);
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}
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expirationQueueType::iterator itQueueRow = getExpirationQueueCacheRow(nExpirationHeight, true);
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itQueueRow->second.push_back(entry);
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}
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void CClaimTrieCache::removeFromExpirationQueue(const std::string& name, const COutPoint& outPoint, int nHeight) const
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void CClaimTrieCache::removeFromExpirationQueue(const std::string& name, const COutPoint& outPoint, int expirationHeight) const
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{
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int expirationHeight = nHeight + base->nExpirationTime;
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expirationQueueType::iterator itQueueRow = getExpirationQueueCacheRow(expirationHeight, false);
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expirationQueueRowType::iterator itQueue;
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if (itQueueRow != expirationQueueCache.end())
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@ -2036,7 +2027,8 @@ bool CClaimTrieCache::removeSupport(const std::string& name, const COutPoint& ou
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removed = true;
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if (removed)
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{
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removeSupportFromExpirationQueue(name, outPoint, nHeight);
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int expirationHeight = nHeight + base->nExpirationTime;
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removeSupportFromExpirationQueue(name, outPoint, expirationHeight);
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nValidAtHeight = support.nValidAtHeight;
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}
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return removed;
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@ -2048,9 +2040,8 @@ void CClaimTrieCache::addSupportToExpirationQueue(int nExpirationHeight, nameOut
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itQueueRow->second.push_back(entry);
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}
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void CClaimTrieCache::removeSupportFromExpirationQueue(const std::string& name, const COutPoint& outPoint, int nHeight) const
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void CClaimTrieCache::removeSupportFromExpirationQueue(const std::string& name, const COutPoint& outPoint, int expirationHeight) const
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{
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int expirationHeight = nHeight + base->nExpirationTime;
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expirationQueueType::iterator itQueueRow = getSupportExpirationQueueCacheRow(expirationHeight, false);
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expirationQueueRowType::iterator itQueue;
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if (itQueueRow != supportExpirationQueueCache.end())
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@ -2104,6 +2095,7 @@ bool CClaimTrieCache::spendSupport(const std::string& name, const COutPoint& out
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bool CClaimTrieCache::incrementBlock(insertUndoType& insertUndo, claimQueueRowType& expireUndo, insertUndoType& insertSupportUndo, supportQueueRowType& expireSupportUndo, std::vector<std::pair<std::string, int> >& takeoverHeightUndo) const
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{
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LogPrintf("%s: nCurrentHeight (before increment): %d\n", __func__, nCurrentHeight);
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claimQueueType::iterator itQueueRow = getQueueCacheRow(nCurrentHeight, false);
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if (itQueueRow != claimQueueCache.end())
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{
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@ -2421,6 +2413,7 @@ bool CClaimTrieCache::decrementBlock(insertUndoType& insertUndo, claimQueueRowTy
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{
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cacheTakeoverHeights[itTakeoverHeightUndo->first] = itTakeoverHeightUndo->second;
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}
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return true;
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}
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@ -2609,3 +2602,106 @@ CClaimTrieProof CClaimTrieCache::getProofForName(const std::string& name) const
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return CClaimTrieProof(nodes, fNameHasValue, outPoint,
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nHeightOfLastTakeover);
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}
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void CClaimTrieCache::removeAndAddToExpirationQueue(expirationQueueRowType &row, int height, bool increment) const
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{
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for (expirationQueueRowType::iterator e = row.begin(); e != row.end(); ++e)
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{
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// remove and insert with new expiration time
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removeFromExpirationQueue(e->name, e->outPoint, height);
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int extend_expiration = Params().GetConsensus().nExtendedClaimExpirationTime - Params().GetConsensus().nOriginalClaimExpirationTime;
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int new_expiration_height = increment ? height + extend_expiration : height - extend_expiration;
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nameOutPointType entry(e->name, e->outPoint);
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addToExpirationQueue(new_expiration_height, entry);
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}
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}
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void CClaimTrieCache::removeAndAddSupportToExpirationQueue(expirationQueueRowType &row, int height, bool increment) const
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{
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for (expirationQueueRowType::iterator e = row.begin(); e != row.end(); ++e)
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{
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// remove and insert with new expiration time
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removeSupportFromExpirationQueue(e->name, e->outPoint, height);
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int extend_expiration = Params().GetConsensus().nExtendedClaimExpirationTime - Params().GetConsensus().nOriginalClaimExpirationTime;
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int new_expiration_height = increment ? height + extend_expiration : height - extend_expiration;
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nameOutPointType entry(e->name, e->outPoint);
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addSupportToExpirationQueue(new_expiration_height, entry);
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}
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}
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bool CClaimTrieCache::forkForExpirationChange(bool increment) const
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{
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/*
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If increment is True, we have forked to extend the expiration time, thus items in the expiration queue
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will have their expiration extended by "new expiration time - original expiration time"
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If increment is False, we are decremented a block to reverse the fork. Thus items in the expiration queue
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will have their expiration extension removed.
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*/
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// look through dirty expiration queues
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std::set<int> dirtyHeights;
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for (expirationQueueType::const_iterator i = base->dirtyExpirationQueueRows.begin(); i != base->dirtyExpirationQueueRows.end(); ++i)
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{
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int height = i->first;
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dirtyHeights.insert(height);
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expirationQueueRowType row = i->second;
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removeAndAddToExpirationQueue(row, height, increment);
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}
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std::set<int> dirtySupportHeights;
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for (expirationQueueType::const_iterator i = base->dirtySupportExpirationQueueRows.begin(); i != base->dirtySupportExpirationQueueRows.end(); ++i)
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{
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int height = i->first;
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dirtySupportHeights.insert(height);
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expirationQueueRowType row = i->second;
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removeAndAddSupportToExpirationQueue(row, height, increment);
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}
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//look through db for expiration queues, if we haven't already found it in dirty expiration queue
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boost::scoped_ptr<CDBIterator> pcursor(const_cast<CDBWrapper*>(&base->db)->NewIterator());
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pcursor->SeekToFirst();
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while (pcursor->Valid())
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{
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std::pair<char, int> key;
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if (pcursor->GetKey(key))
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{
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int height = key.second;
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// if we've looked throught this in dirtyExprirationQueueRows, don't use it
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// because its stale
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if ((key.first == EXP_QUEUE_ROW) & (dirtyHeights.count(height) == 0))
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{
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expirationQueueRowType row;
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if (pcursor->GetValue(row))
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{
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removeAndAddToExpirationQueue(row, height, increment);
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}
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else
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{
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return error("%s(): error reading expiration queue rows from disk", __func__);
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}
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}
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else if ((key.first == SUPPORT_EXP_QUEUE_ROW) & (dirtySupportHeights.count(height) == 0))
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{
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expirationQueueRowType row;
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if (pcursor->GetValue(row))
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{
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removeAndAddSupportToExpirationQueue(row, height, increment);
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}
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else
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{
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return error("%s(): error reading support expiration queue rows from disk", __func__);
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}
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}
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}
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pcursor->Next();
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}
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return true;
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}
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@ -517,6 +517,13 @@ public:
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CClaimTrieProof getProofForName(const std::string& name) const;
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bool finalizeDecrement() const;
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void removeAndAddSupportToExpirationQueue(expirationQueueRowType &row, int height, bool increment) const;
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void removeAndAddToExpirationQueue(expirationQueueRowType &row, int height, bool increment) const;
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bool forkForExpirationChange(bool increment) const;
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protected:
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CClaimTrie* base;
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@ -2236,6 +2236,7 @@ bool DisconnectBlock(const CBlock& block, CValidationState& state, const CBlockI
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{
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LogPrintf("Decremented past the extended claim expiration hard fork height");
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pclaimTrie->setExpirationTime(Params().GetConsensus().GetExpirationTime(pindex->nHeight-1));
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trieCache.forkForExpirationChange(false);
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}
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@ -2504,6 +2505,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
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{
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LogPrintf("Incremented past the extended claim expiration hard fork height");
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pclaimTrie->setExpirationTime(chainparams.GetConsensus().GetExpirationTime(pindex->nHeight));
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trieCache.forkForExpirationChange(true);
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}
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@ -23,7 +23,6 @@ using namespace std;
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BOOST_FIXTURE_TEST_SUITE(claimtriebranching_tests, RegTestingSetup)
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//is a claim in queue
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boost::test_tools::predicate_result
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is_claim_in_queue(std::string name, const CTransaction &tx)
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@ -164,7 +163,16 @@ struct ClaimTrieChainFixture{
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unsigned int num_txs;
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unsigned int num_txs_for_next_block;
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ClaimTrieChainFixture()
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// these will take on regtest parameters
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const int expirationForkHeight;
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const int originalExpiration;
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const int extendedExpiration;
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ClaimTrieChainFixture():
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expirationForkHeight(Params(CBaseChainParams::REGTEST).GetConsensus().nExtendedClaimExpirationForkHeight),
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originalExpiration(Params(CBaseChainParams::REGTEST).GetConsensus().nOriginalClaimExpirationTime),
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extendedExpiration(Params(CBaseChainParams::REGTEST).GetConsensus().nExtendedClaimExpirationTime)
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{
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fRequireStandard = false;
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BOOST_CHECK(pclaimTrie->nCurrentHeight == chainActive.Height() + 1);
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@ -300,6 +308,17 @@ struct ClaimTrieChainFixture{
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num_txs_for_next_block = 0;
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}
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void WriteClearReadClaimTrie()
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{
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// this will simulate restart of lbrycrdd by writing the claimtrie to disk,
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// clearing the-in memory claimtrie, and then reading the saved claimtrie
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// from disk
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pclaimTrie->WriteToDisk();
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pclaimTrie->clear();
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pclaimTrie->ReadFromDisk(true);
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}
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};
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@ -846,76 +865,68 @@ BOOST_AUTO_TEST_CASE(claimtriebranching_get_claim_by_id)
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}
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/*
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expiration
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claim expiration for hard fork
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check claims do not expire post ExpirationForkHeight
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check supports work post ExpirationForkHeight
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*/
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BOOST_AUTO_TEST_CASE(claimtriebranching_no_expire)
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BOOST_AUTO_TEST_CASE(claimtriebranching_hardfork_claim)
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{
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ClaimTrieChainFixture fixture;
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// To activate the expiration hard fork, the expiration time must
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// be set to 10 years of blocks (not used as 10 years, but rather
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// a sentinel value for hard fork activation) and we must advance
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// past nExtendedClaimExpirationForkHeight. This is purposely set
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// low enough for testing in the Regtest chain parameters.
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const int expirationForkHeight =
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Params(CBaseChainParams::REGTEST).GetConsensus().nExtendedClaimExpirationForkHeight;
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const int originalExpiration =
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Params(CBaseChainParams::REGTEST).GetConsensus().nOriginalClaimExpirationTime;
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const int extendedExpiration =
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Params(CBaseChainParams::REGTEST).GetConsensus().nExtendedClaimExpirationTime;
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BOOST_CHECK_EQUAL(pclaimTrie->nExpirationTime, originalExpiration);
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BOOST_CHECK_EQUAL(pclaimTrie->nExpirationTime, fixture.originalExpiration);
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// First create a claim and make sure it expires pre-fork
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CMutableTransaction tx1 = fixture.MakeClaim(fixture.GetCoinbase(),"test","one",3);
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fixture.IncrementBlocks(originalExpiration+1);
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fixture.IncrementBlocks(fixture.originalExpiration+1);
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BOOST_CHECK(!is_best_claim("test",tx1));
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fixture.DecrementBlocks(originalExpiration);
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fixture.DecrementBlocks(fixture.originalExpiration);
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BOOST_CHECK(is_best_claim("test",tx1));
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fixture.IncrementBlocks(originalExpiration);
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fixture.IncrementBlocks(fixture.originalExpiration);
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BOOST_CHECK(!is_best_claim("test",tx1));
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// Create a claim 1 block before the fork height that will expire after the fork height
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fixture.IncrementBlocks(expirationForkHeight - chainActive.Height() -2);
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fixture.IncrementBlocks(fixture.expirationForkHeight - chainActive.Height() -2);
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CMutableTransaction tx2 = fixture.MakeClaim(fixture.GetCoinbase(),"test2","one",3);
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fixture.IncrementBlocks(1);
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BOOST_CHECK_EQUAL(chainActive.Height(), expirationForkHeight -1);
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BOOST_CHECK_EQUAL(chainActive.Height(), fixture.expirationForkHeight -1);
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// Disable future expirations and fast-forward past the fork height
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fixture.IncrementBlocks(1);
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BOOST_CHECK_EQUAL(chainActive.Height(), expirationForkHeight);
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BOOST_CHECK_EQUAL(pclaimTrie->nExpirationTime, extendedExpiration);
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BOOST_CHECK_EQUAL(chainActive.Height(), fixture.expirationForkHeight);
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BOOST_CHECK_EQUAL(pclaimTrie->nExpirationTime, fixture.extendedExpiration);
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// make sure decrementing to before the fork height will apppropriately set back the
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// expiration time to the original expiraiton time
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fixture.DecrementBlocks(1);
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BOOST_CHECK_EQUAL(pclaimTrie->nExpirationTime, originalExpiration);
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BOOST_CHECK_EQUAL(pclaimTrie->nExpirationTime, fixture.originalExpiration);
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fixture.IncrementBlocks(1);
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// make sure that claim created 1 block before the fork expires as expected
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// at the original expiration times
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// at the extended expiration times
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BOOST_CHECK(is_best_claim("test2", tx2));
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fixture.IncrementBlocks(originalExpiration-1);
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fixture.IncrementBlocks(fixture.extendedExpiration-1);
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BOOST_CHECK(!is_best_claim("test2", tx2));
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fixture.DecrementBlocks(originalExpiration-1);
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fixture.DecrementBlocks(fixture.extendedExpiration-1);
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// This first claim is still expired since it's pre-fork, even
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// after fork activation
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BOOST_CHECK(!is_best_claim("test",tx1));
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// This new claim created at the fork height cannot expire at original expiration
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BOOST_CHECK_EQUAL(chainActive.Height(), expirationForkHeight);
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BOOST_CHECK_EQUAL(chainActive.Height(), fixture.expirationForkHeight);
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CMutableTransaction tx3 = fixture.MakeClaim(fixture.GetCoinbase(),"test","one",1);
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fixture.IncrementBlocks(1);
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fixture.IncrementBlocks(originalExpiration);
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fixture.IncrementBlocks(fixture.originalExpiration);
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BOOST_CHECK(is_best_claim("test",tx3));
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BOOST_CHECK(!is_best_claim("test",tx1));
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fixture.DecrementBlocks(originalExpiration);
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fixture.DecrementBlocks(fixture.originalExpiration);
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// but it expires at the extended expiration
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fixture.IncrementBlocks(extendedExpiration);
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// but it expires at the extended expiration, and not a single block below
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fixture.IncrementBlocks(fixture.extendedExpiration);
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BOOST_CHECK(!is_best_claim("test",tx3));
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fixture.DecrementBlocks(extendedExpiration);
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fixture.DecrementBlocks(fixture.extendedExpiration);
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fixture.IncrementBlocks(fixture.extendedExpiration-1);
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BOOST_CHECK(is_best_claim("test",tx3));
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fixture.DecrementBlocks(fixture.extendedExpiration-1);
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// Ensure that we cannot update the original pre-fork expired claim
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CMutableTransaction u1 = fixture.MakeUpdate(tx1,"test","two",ClaimIdHash(tx1.GetHash(),0), 3);
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@ -936,5 +947,121 @@ BOOST_AUTO_TEST_CASE(claimtriebranching_no_expire)
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BOOST_CHECK(is_best_claim("test",u2));
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}
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/*
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support expiration for hard fork
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*/
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BOOST_AUTO_TEST_CASE(claimtriebranching_hardfork_support)
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{
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ClaimTrieChainFixture fixture;
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int blocks_before_fork = 10;
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fixture.IncrementBlocks(fixture.expirationForkHeight - chainActive.Height() - blocks_before_fork-1);
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// Create claim and support it before the fork height
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CMutableTransaction tx1 = fixture.MakeClaim(fixture.GetCoinbase(),"test","one",1);
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CMutableTransaction s1 = fixture.MakeSupport(fixture.GetCoinbase(),tx1,"test",2);
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// this claim will win without the support
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CMutableTransaction tx2 = fixture.MakeClaim(fixture.GetCoinbase(),"test","one",2);
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fixture.IncrementBlocks(1);
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fixture.IncrementBlocks(blocks_before_fork);
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// check that the claim expires as expected at the extended time, as does the support
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fixture.IncrementBlocks(fixture.originalExpiration - blocks_before_fork);
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BOOST_CHECK(is_best_claim("test",tx1));
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BOOST_CHECK(best_claim_effective_amount_equals("test",3));
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fixture.DecrementBlocks(fixture.originalExpiration - blocks_before_fork);
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fixture.IncrementBlocks(fixture.extendedExpiration - blocks_before_fork);
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BOOST_CHECK(!is_best_claim("test",tx1));
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fixture.DecrementBlocks(fixture.extendedExpiration - blocks_before_fork);
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fixture.IncrementBlocks(fixture.extendedExpiration - blocks_before_fork - 1);
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BOOST_CHECK(is_best_claim("test",tx1));
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BOOST_CHECK(best_claim_effective_amount_equals("test",3));
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fixture.DecrementBlocks(fixture.extendedExpiration - blocks_before_fork - 1);
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// update the claims at fork
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fixture.DecrementBlocks(1);
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CMutableTransaction u1 = fixture.MakeUpdate(tx1,"test","two",ClaimIdHash(tx1.GetHash(),0),1);
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CMutableTransaction u2 = fixture.MakeUpdate(tx2,"test","two",ClaimIdHash(tx2.GetHash(),0),2);
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fixture.IncrementBlocks(1);
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BOOST_CHECK_EQUAL(fixture.expirationForkHeight, chainActive.Height());
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BOOST_CHECK(is_best_claim("test", u1));
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BOOST_CHECK(best_claim_effective_amount_equals("test",3));
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BOOST_CHECK(!is_claim_in_queue("test",tx1));
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BOOST_CHECK(!is_claim_in_queue("test",tx2));
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// check that the support expires as expected
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||||
fixture.IncrementBlocks(fixture.extendedExpiration - blocks_before_fork);
|
||||
BOOST_CHECK(is_best_claim("test",u2));
|
||||
fixture.DecrementBlocks(fixture.extendedExpiration - blocks_before_fork);
|
||||
fixture.IncrementBlocks(fixture.extendedExpiration - blocks_before_fork - 1);
|
||||
BOOST_CHECK(is_best_claim("test",u1));
|
||||
BOOST_CHECK(best_claim_effective_amount_equals("test",3));
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
claim/support expiration for hard fork, but with checks for disk procedures
|
||||
*/
|
||||
BOOST_AUTO_TEST_CASE(claimtriebranching_hardfork_disktest)
|
||||
{
|
||||
ClaimTrieChainFixture fixture;
|
||||
|
||||
// Check that incrementing to fork height, reseting to disk will get proper expiration time
|
||||
BOOST_CHECK_EQUAL(pclaimTrie->nExpirationTime, fixture.originalExpiration);
|
||||
fixture.IncrementBlocks(fixture.expirationForkHeight - chainActive.Height());
|
||||
BOOST_CHECK_EQUAL(chainActive.Height(), fixture.expirationForkHeight);
|
||||
BOOST_CHECK_EQUAL(pclaimTrie->nExpirationTime, fixture.extendedExpiration);
|
||||
fixture.WriteClearReadClaimTrie();
|
||||
BOOST_CHECK_EQUAL(pclaimTrie->nExpirationTime, fixture.extendedExpiration);
|
||||
|
||||
// Create a claim and support 1 block before the fork height that will expire after the fork height.
|
||||
// Reset to disk, increment past the fork height and make sure we get
|
||||
// proper behavior
|
||||
fixture.DecrementBlocks(2);
|
||||
CMutableTransaction tx1 = fixture.MakeClaim(fixture.GetCoinbase(),"test","one",1);
|
||||
CMutableTransaction s1 = fixture.MakeSupport(fixture.GetCoinbase(),tx1,"test",1);
|
||||
fixture.IncrementBlocks(1);
|
||||
BOOST_CHECK_EQUAL(chainActive.Height(), fixture.expirationForkHeight -1);
|
||||
|
||||
fixture.WriteClearReadClaimTrie();
|
||||
BOOST_CHECK_EQUAL(chainActive.Height(), fixture.expirationForkHeight-1);
|
||||
BOOST_CHECK_EQUAL(pclaimTrie->nExpirationTime, fixture.originalExpiration);
|
||||
fixture.IncrementBlocks(1);
|
||||
BOOST_CHECK_EQUAL(pclaimTrie->nExpirationTime, fixture.extendedExpiration);
|
||||
BOOST_CHECK(is_best_claim("test", tx1));
|
||||
BOOST_CHECK(best_claim_effective_amount_equals("test",2));
|
||||
fixture.IncrementBlocks(fixture.originalExpiration-1);
|
||||
BOOST_CHECK(is_best_claim("test", tx1));
|
||||
BOOST_CHECK(best_claim_effective_amount_equals("test",2));
|
||||
fixture.DecrementBlocks(fixture.originalExpiration-1);
|
||||
fixture.IncrementBlocks(fixture.extendedExpiration-1);
|
||||
BOOST_CHECK(!is_best_claim("test", tx1));
|
||||
|
||||
// Create a claim and support before the fork height, reset to disk, update the claim
|
||||
// increment past the fork height and make sure we get proper behavior
|
||||
int height_of_update_before_expiration = 50;
|
||||
fixture.DecrementBlocks(chainActive.Height() - fixture.expirationForkHeight + height_of_update_before_expiration+2);
|
||||
CMutableTransaction tx2 = fixture.MakeClaim(fixture.GetCoinbase(),"test2","one",1);
|
||||
CMutableTransaction s2 = fixture.MakeSupport(fixture.GetCoinbase(),tx2,"test2",1);
|
||||
fixture.IncrementBlocks(1);
|
||||
fixture.WriteClearReadClaimTrie();
|
||||
CMutableTransaction u2 = fixture.MakeUpdate(tx2,"test2","two",ClaimIdHash(tx2.GetHash(),0),1);
|
||||
// increment to fork
|
||||
fixture.IncrementBlocks(fixture.expirationForkHeight - chainActive.Height());
|
||||
BOOST_CHECK(is_best_claim("test2", u2));
|
||||
BOOST_CHECK(best_claim_effective_amount_equals("test2",2));
|
||||
// increment to original expiration, should not be expired
|
||||
fixture.IncrementBlocks(fixture.originalExpiration - height_of_update_before_expiration);
|
||||
BOOST_CHECK(is_best_claim("test2", u2));
|
||||
BOOST_CHECK(best_claim_effective_amount_equals("test2",2));
|
||||
fixture.DecrementBlocks(fixture.originalExpiration - height_of_update_before_expiration);
|
||||
// increment to extended expiration, should be expired and not one block before
|
||||
fixture.IncrementBlocks(fixture.extendedExpiration - height_of_update_before_expiration);
|
||||
BOOST_CHECK(!is_best_claim("test2", u2));
|
||||
fixture.DecrementBlocks(fixture.extendedExpiration - height_of_update_before_expiration);
|
||||
fixture.IncrementBlocks(fixture.extendedExpiration - height_of_update_before_expiration-1);
|
||||
BOOST_CHECK(is_best_claim("test2", u2));
|
||||
BOOST_CHECK(best_claim_effective_amount_equals("test2",1)); // the support expires one block before
|
||||
}
|
||||
|
||||
BOOST_AUTO_TEST_SUITE_END()
|
||||
|
|
|
|||
Loading…
Reference in a new issue