diff options
Diffstat (limited to 'src/main.cpp')
| -rw-r--r-- | src/main.cpp | 54 |
1 files changed, 20 insertions, 34 deletions
diff --git a/src/main.cpp b/src/main.cpp index e2bed52787..5fa35f011b 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -31,6 +31,7 @@ CTxMemPool mempool; unsigned int nTransactionsUpdated = 0; map<uint256, CBlockIndex*> mapBlockIndex; +std::vector<CBlockIndex*> vBlockIndexByHeight; uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"); static CBigNum bnProofOfWorkLimit(~uint256(0) >> 32); CBlockIndex* pindexGenesisBlock = NULL; @@ -1036,19 +1037,9 @@ bool GetTransaction(const uint256 &hash, CTransaction &txOut, uint256 &hashBlock static CBlockIndex* pblockindexFBBHLast; CBlockIndex* FindBlockByHeight(int nHeight) { - CBlockIndex *pblockindex; - if (nHeight < nBestHeight / 2) - pblockindex = pindexGenesisBlock; - else - pblockindex = pindexBest; - if (pblockindexFBBHLast && abs(nHeight - pblockindex->nHeight) > abs(nHeight - pblockindexFBBHLast->nHeight)) - pblockindex = pblockindexFBBHLast; - while (pblockindex->nHeight > nHeight) - pblockindex = pblockindex->pprev; - while (pblockindex->nHeight < nHeight) - pblockindex = pblockindex->pnext; - pblockindexFBBHLast = pblockindex; - return pblockindex; + if (nHeight >= (int)vBlockIndexByHeight.size()) + return NULL; + return vBlockIndexByHeight[nHeight]; } bool CBlock::ReadFromDisk(const CBlockIndex* pindex) @@ -1231,7 +1222,7 @@ void static InvalidBlockFound(CBlockIndex *pindex) { pblocktree->WriteBlockIndex(CDiskBlockIndex(pindex)); setBlockIndexValid.erase(pindex); InvalidChainFound(pindex); - if (pindex->pnext) { + if (pindex->GetNextInMainChain()) { CValidationState stateDummy; ConnectBestBlock(stateDummy); // reorganise away from the failed block } @@ -1271,7 +1262,7 @@ bool ConnectBestBlock(CValidationState &state) { if (pindexBest == NULL || pindexTest->nChainWork > pindexBest->nChainWork) vAttach.push_back(pindexTest); - if (pindexTest->pprev == NULL || pindexTest->pnext != NULL) { + if (pindexTest->pprev == NULL || pindexTest->GetNextInMainChain()) { reverse(vAttach.begin(), vAttach.end()); BOOST_FOREACH(CBlockIndex *pindexSwitch, vAttach) { boost::this_thread::interruption_point(); @@ -1849,15 +1840,10 @@ bool SetBestChain(CValidationState &state, CBlockIndex* pindexNew) // At this point, all changes have been done to the database. // Proceed by updating the memory structures. - // Disconnect shorter branch - BOOST_FOREACH(CBlockIndex* pindex, vDisconnect) - if (pindex->pprev) - pindex->pprev->pnext = NULL; - - // Connect longer branch + // Register new best chain + vBlockIndexByHeight.resize(pindexNew->nHeight + 1); BOOST_FOREACH(CBlockIndex* pindex, vConnect) - if (pindex->pprev) - pindex->pprev->pnext = pindex; + vBlockIndexByHeight[pindex->nHeight] = pindex; // Resurrect memory transactions that were in the disconnected branch BOOST_FOREACH(CTransaction& tx, vResurrect) { @@ -2609,12 +2595,12 @@ bool static LoadBlockIndexDB() nBestHeight = pindexBest->nHeight; nBestChainWork = pindexBest->nChainWork; - // set 'next' pointers in best chain + // register best chain CBlockIndex *pindex = pindexBest; - while(pindex != NULL && pindex->pprev != NULL) { - CBlockIndex *pindexPrev = pindex->pprev; - pindexPrev->pnext = pindex; - pindex = pindexPrev; + vBlockIndexByHeight.resize(pindexBest->nHeight + 1); + while(pindex != NULL) { + vBlockIndexByHeight[pindex->nHeight] = pindex; + pindex = pindex->pprev; } printf("LoadBlockIndexDB(): hashBestChain=%s height=%d date=%s\n", hashBestChain.ToString().c_str(), nBestHeight, @@ -2683,7 +2669,7 @@ bool VerifyDB() { CBlockIndex *pindex = pindexState; while (pindex != pindexBest) { boost::this_thread::interruption_point(); - pindex = pindex->pnext; + pindex = pindex->GetNextInMainChain(); CBlock block; if (!block.ReadFromDisk(pindex)) return error("VerifyDB() : *** block.ReadFromDisk failed at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString().c_str()); @@ -2859,7 +2845,7 @@ void PrintBlockTree() vector<CBlockIndex*>& vNext = mapNext[pindex]; for (unsigned int i = 0; i < vNext.size(); i++) { - if (vNext[i]->pnext) + if (vNext[i]->GetNextInMainChain()) { swap(vNext[0], vNext[i]); break; @@ -3440,10 +3426,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv) // Send the rest of the chain if (pindex) - pindex = pindex->pnext; + pindex = pindex->GetNextInMainChain(); int nLimit = 500; printf("getblocks %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().c_str(), nLimit); - for (; pindex; pindex = pindex->pnext) + for (; pindex; pindex = pindex->GetNextInMainChain()) { if (pindex->GetBlockHash() == hashStop) { @@ -3483,14 +3469,14 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv) // Find the last block the caller has in the main chain pindex = locator.GetBlockIndex(); if (pindex) - pindex = pindex->pnext; + pindex = pindex->GetNextInMainChain(); } // we must use CBlocks, as CBlockHeaders won't include the 0x00 nTx count at the end vector<CBlock> vHeaders; int nLimit = 2000; printf("getheaders %d to %s\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().c_str()); - for (; pindex; pindex = pindex->pnext) + for (; pindex; pindex = pindex->GetNextInMainChain()) { vHeaders.push_back(pindex->GetBlockHeader()); if (--nLimit <= 0 || pindex->GetBlockHash() == hashStop) |