| 4615 | } |
| 4616 | |
| 4617 | bool LoadExternalBlockFile(const CChainParams& chainparams, FILE* fileIn, CDiskBlockPos *dbp) |
| 4618 | { |
| 4619 | // Map of disk positions for blocks with unknown parent (only used for reindex) |
| 4620 | static std::multimap<uint256, CDiskBlockPos> mapBlocksUnknownParent; |
| 4621 | int64_t nStart = GetTimeMillis(); |
| 4622 | |
| 4623 | int nLoaded = 0; |
| 4624 | try { |
| 4625 | // This takes over fileIn and calls fclose() on it in the CBufferedFile destructor |
| 4626 | CBufferedFile blkdat(fileIn, 2*MAX_BLOCK_SERIALIZED_SIZE, MAX_BLOCK_SERIALIZED_SIZE+8, SER_DISK, CLIENT_VERSION); |
| 4627 | uint64_t nRewind = blkdat.GetPos(); |
| 4628 | while (!blkdat.eof()) { |
| 4629 | boost::this_thread::interruption_point(); |
| 4630 | |
| 4631 | blkdat.SetPos(nRewind); |
| 4632 | nRewind++; // start one byte further next time, in case of failure |
| 4633 | blkdat.SetLimit(); // remove former limit |
| 4634 | unsigned int nSize = 0; |
| 4635 | try { |
| 4636 | // locate a header |
| 4637 | unsigned char buf[CMessageHeader::MESSAGE_START_SIZE]; |
| 4638 | blkdat.FindByte(chainparams.MessageStart()[0]); |
| 4639 | nRewind = blkdat.GetPos()+1; |
| 4640 | blkdat >> buf; |
| 4641 | if (memcmp(buf, chainparams.MessageStart(), CMessageHeader::MESSAGE_START_SIZE)) |
| 4642 | continue; |
| 4643 | // read size |
| 4644 | blkdat >> nSize; |
| 4645 | if (nSize < 80 || nSize > MAX_BLOCK_SERIALIZED_SIZE) |
| 4646 | continue; |
| 4647 | } catch (const std::exception&) { |
| 4648 | // no valid block header found; don't complain |
| 4649 | break; |
| 4650 | } |
| 4651 | try { |
| 4652 | // read block |
| 4653 | uint64_t nBlockPos = blkdat.GetPos(); |
| 4654 | if (dbp) |
| 4655 | dbp->nPos = nBlockPos; |
| 4656 | blkdat.SetLimit(nBlockPos + nSize); |
| 4657 | blkdat.SetPos(nBlockPos); |
| 4658 | std::shared_ptr<CBlock> pblock = std::make_shared<CBlock>(); |
| 4659 | CBlock& block = *pblock; |
| 4660 | blkdat >> block; |
| 4661 | nRewind = blkdat.GetPos(); |
| 4662 | |
| 4663 | uint256 hash = block.GetHash(); |
| 4664 | { |
| 4665 | LOCK(cs_main); |
| 4666 | // detect out of order blocks, and store them for later |
| 4667 | if (hash != chainparams.GetConsensus().hashGenesisBlock && !LookupBlockIndex(block.hashPrevBlock)) { |
| 4668 | LogPrint(BCLog::REINDEX, "%s: Out of order block %s, parent %s not known\n", __func__, hash.ToString(), |
| 4669 | block.hashPrevBlock.ToString()); |
| 4670 | if (dbp) |
| 4671 | mapBlocksUnknownParent.insert(std::make_pair(block.hashPrevBlock, *dbp)); |
| 4672 | continue; |
| 4673 | } |
| 4674 |
no test coverage detected