// Copyright (c) 2017 Baidu.com, Inc. All Rights Reserved// // Licensed 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.// Author: Zhangyi Chen (chenzhangyi01@baidu.com)// Date: 2017/11/04 17:13:18#ifndef PUBLIC_COMMON_POPEN_H#define PUBLIC_COMMON_POPEN_H#include <ostream>namespacebutil{// Read the stdout of child process executing `cmd'.// Returns the exit status(0-255) of cmd and all the output is stored in// |os|. -1 otherwise and errno is set appropriately.intread_command_output(std::ostream&os,constchar*cmd);}#endif //PUBLIC_COMMON_POPEN_H