Method Execute

src/persistence/blockundo.cpp:112–132

// class CBlockUndoExecutor

bool CBlockUndoExecutor::Execute() {
    // undoFuncMap
    // RegisterUndoFunc();
    const UndoDataFuncMap &undoDataFuncMap = cw.GetUndoDataFuncMap();

    for (auto it = block_undo.vtxundo.rbegin(); it != block_undo.vtxundo.rend(); it++) {
        for (const auto &opLogPair : it->dbOpLogMap.GetMap()) {
            dbk::PrefixType prefixType = dbk::ParseKeyPrefixType(opLogPair.first);
            if (prefixType == dbk::EMPTY)
                return ERRORMSG("%s(), unkown prefix! prefix_type=%s", __FUNCTION__,
                                opLogPair.first);
            auto funcMapIt = undoDataFuncMap.find(prefixType);
            if (funcMapIt == undoDataFuncMap.end()) {
                return ERRORMSG("%s(), unfound prefix in db! prefix_type=%s", __FUNCTION__,
                                opLogPair.first);
            }
            funcMapIt->second(opLogPair.second);
        }
    }
    return true;
}