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C++ CTxDB::EraseBlockIndex方法代码示例

本文整理汇总了C++中CTxDB::EraseBlockIndex方法的典型用法代码示例。如果您正苦于以下问题:C++ CTxDB::EraseBlockIndex方法的具体用法?C++ CTxDB::EraseBlockIndex怎么用?C++ CTxDB::EraseBlockIndex使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在CTxDB的用法示例。


在下文中一共展示了CTxDB::EraseBlockIndex方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: rewindchain


//.........这里部分代码省略.........
            CAutoFile blkdat(fp, SER_DISK, CLIENT_VERSION);

            if (fseek(blkdat, fpos+foundPos, SEEK_SET) != 0)
            {
                LogPrintf("fseek blkdat failed: %s\n", strerror(errno));
                break;
            };

            unsigned int nSize;
            blkdat >> nSize;
            LogPrintf("nSize %u .\n", nSize);

            if (nSize < 1 || nSize > MAX_BLOCK_SIZE)
            {
                LogPrintf("block size error %u\n", nSize);

            };

            CBlock block;
            blkdat >> block;
            uint256 hashblock = block.GetHash();
            LogPrintf("hashblock %s .\n", hashblock.ToString().c_str());

            std::map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashblock);
            if (mi != mapBlockIndex.end() && (*mi).second)
            {
                LogPrintf("block is in main chain.\n");

                if (!mi->second->pprev)
                {
                    LogPrintf("! mi->second.pprev\n");
                } else
                {
                    {
                        CBlock blockPrev; // strange way SetBestChain works, TODO: does it need the full block?
                        if (!blockPrev.ReadFromDisk(mi->second->pprev))
                        {
                            LogPrintf("blockPrev.ReadFromDisk failed %s.\n", mi->second->pprev->GetBlockHash().ToString().c_str());
                            break;
                        };

                        CTxDB txdb;
                        if (!blockPrev.SetBestChain(txdb, mi->second->pprev))
                        {
                            LogPrintf("SetBestChain failed.\n");
                        };
                    }
                    mi->second->pprev->pnext = NULL;
                };

                delete mi->second;
                mapBlockIndex.erase(mi);
            };

            std::map<uint256, COrphanBlock*>::iterator miOph = mapOrphanBlocks.find(hashblock);
            if (miOph != mapOrphanBlocks.end())
            {
                LogPrintf("block is an orphan.\n");
                mapOrphanBlocks.erase(miOph);
            };

            CTxDB txdb;
            for (vector<CTransaction>::iterator it = block.vtx.begin(); it != block.vtx.end(); ++it)
            {
                LogPrintf("EraseTxIndex().\n");
                txdb.EraseTxIndex(*it);
            };

            LogPrintf("EraseBlockIndex().\n");
            txdb.EraseBlockIndex(hashblock);

            errno = 0;
            if (ftruncate(fileno(fp), fpos+foundPos-MESSAGE_START_SIZE) != 0)
            {
                LogPrintf("ftruncate failed: %s\n", strerror(errno));
            };

            LogPrintf("hashBestChain %s, nBestHeight %d\n", hashBestChain.ToString().c_str(), nBestHeight);

            //fclose(fp); // ~CAutoFile() will close the file
            nRemoved++;
        };
    }


    result.push_back(Pair("no. blocks removed", itostr(nRemoved)));

    result.push_back(Pair("hashBestChain", hashBestChain.ToString()));
    result.push_back(Pair("nBestHeight", itostr(nBestHeight)));

    // -- need restart, setStakeSeen etc
    if (nRemoved > 0)
        result.push_back(Pair("Please restart Taurus", ""));

    if (nRemoved == nNumber)
        result.push_back(Pair("result", "success"));
    else
        result.push_back(Pair("result", "failure"));
    return result;
}
开发者ID:tauruscrypto,项目名称:taurus,代码行数:101,代码来源:rpcblockchain.cpp


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