1/* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15#ifndef COMMON_H 16#define COMMON_H 17#include <iostream> 18#include <sstream> 19 20namespace Common { 21 static const unsigned int NUMBER = 128; 22 // cmd calls 23 std::string runProcess(const std::string &cmd) 24 { 25 if (FILE* fp = popen(cmd.c_str(), "r")) { 26 std::ostringstream stm; 27 char line[NUMBER]; 28 while (fgets(line, NUMBER, fp)) { 29 stm << line; 30 } 31 pclose(fp); 32 return stm.str(); 33 } 34 return ""; 35 } 36} 37#endif // COMMON_H