| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| **/ |
| |
| #ifndef QUICKSTEP_CLI_INPUT_PARSER_UTIL_HPP_ |
| #define QUICKSTEP_CLI_INPUT_PARSER_UTIL_HPP_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "utility/Macros.hpp" |
| |
| namespace quickstep { |
| |
| /** \addtogroup CLI |
| * @{ |
| */ |
| |
| /** |
| * @brief A static utility class for parsing input to Quickstep CLI. |
| **/ |
| class InputParserUtil { |
| public: |
| /** |
| * @brief Parse an input string consisting of worker thread's CPU core |
| * affinities. |
| * |
| * @param num_workers The number of worker threads. |
| * @param affinity_string A string consisting of the worker thread affinities. |
| * |
| * @note Check cli/QuickstepCli.cpp for the description on the format of the |
| * affinity_string. |
| * |
| * @return A vector of CPU cores to which workers are affinitized. If no |
| * information is available for a worker, we assign -1. |
| **/ |
| static std::vector<int> ParseWorkerAffinities( |
| const int num_workers, |
| const std::string &affinity_string); |
| |
| /** |
| * @brief Get NUMA nodes of all the CPUs. |
| * |
| * @note This function is only relevant when libnuma is present. |
| * |
| * @return A vector where ith element is the NUMA node of ith CPU, starting |
| * from 0. |
| **/ |
| static std::vector<int> GetNUMANodesForCPUs(); |
| |
| private: |
| /** |
| * @brief Private constructor to disable instantiation of the class. |
| **/ |
| InputParserUtil(); |
| |
| DISALLOW_COPY_AND_ASSIGN(InputParserUtil); |
| }; |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_CLI_INPUT_PARSER_UTIL_HPP_ |