1 /* 2 * Copyright (C) 2018 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 #pragma once 18 19 #include <string> 20 21 #include "adb_unique_fd.h" 22 23 #include <string_view> 24 25 enum class SubprocessType { 26 kPty, 27 kRaw, 28 }; 29 30 enum class SubprocessProtocol { 31 kNone, 32 kShell, 33 }; 34 35 // Forks and starts a new shell subprocess. If |name| is empty an interactive 36 // shell is started, otherwise |name| is executed non-interactively. 37 // 38 // Returns an open FD connected to the subprocess or -1 on failure. 39 unique_fd StartSubprocess(std::string name, const char* terminal_type, SubprocessType type, 40 SubprocessProtocol protocol); 41 42 // The same as above but with more fined grained control and custom error handling. 43 unique_fd StartSubprocess(std::string name, const char* terminal_type, SubprocessType type, 44 SubprocessProtocol protocol, bool make_pty_raw, 45 SubprocessProtocol error_protocol, unique_fd* error_fd); 46 47 // Executes |command| in a separate thread. 48 // Sets up in/out and error streams to emulate shell-like behavior. 49 // 50 // Returns an open FD connected to the thread or -1 on failure. 51 using Command = int(std::string_view args, borrowed_fd in, borrowed_fd out, borrowed_fd err); 52 unique_fd StartCommandInProcess(std::string name, Command command, SubprocessProtocol protocol); 53 54 // Create a pipe containing the error. 55 unique_fd ReportError(SubprocessProtocol protocol, const std::string& message); 56