1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_RUNTIME_EXEC_UTILS_H_ 18 #define ART_RUNTIME_EXEC_UTILS_H_ 19 20 #include <time.h> 21 22 #include <string> 23 #include <vector> 24 25 namespace art { 26 27 // Wrapper on fork/execv to run a command in a subprocess. 28 // These spawn child processes using the environment as it was set when the single instance 29 // of the runtime (Runtime::Current()) was started. If no instance of the runtime was started, it 30 // will use the current environment settings. 31 32 bool Exec(std::vector<std::string>& arg_vector, /*out*/ std::string* error_msg); 33 int ExecAndReturnCode(std::vector<std::string>& arg_vector, /*out*/ std::string* error_msg); 34 35 // Execute the command specified in `argv_vector` in a subprocess with a timeout. 36 // Returns the process exit code on success, -1 otherwise. 37 int ExecAndReturnCode(std::vector<std::string>& arg_vector, 38 time_t timeout_secs, 39 /*out*/ bool* timed_out, 40 /*out*/ std::string* error_msg); 41 42 // A wrapper class to make the functions above mockable. 43 class ExecUtils { 44 public: 45 virtual ~ExecUtils() = default; 46 Exec(std::vector<std::string> & arg_vector,std::string * error_msg)47 virtual bool Exec(std::vector<std::string>& arg_vector, /*out*/ std::string* error_msg) const { 48 return art::Exec(arg_vector, error_msg); 49 } 50 ExecAndReturnCode(std::vector<std::string> & arg_vector,std::string * error_msg)51 virtual int ExecAndReturnCode(std::vector<std::string>& arg_vector, 52 /*out*/ std::string* error_msg) const { 53 return art::ExecAndReturnCode(arg_vector, error_msg); 54 } 55 ExecAndReturnCode(std::vector<std::string> & arg_vector,time_t timeout_secs,bool * timed_out,std::string * error_msg)56 virtual int ExecAndReturnCode(std::vector<std::string>& arg_vector, 57 time_t timeout_secs, 58 /*out*/ bool* timed_out, 59 /*out*/ std::string* error_msg) const { 60 return art::ExecAndReturnCode(arg_vector, timeout_secs, timed_out, error_msg); 61 } 62 }; 63 64 } // namespace art 65 66 #endif // ART_RUNTIME_EXEC_UTILS_H_ 67