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 package com.googlecode.android_scripting; 18 19 import java.io.FileDescriptor; 20 21 /** 22 * Tools for executing commands. 23 */ 24 public class Exec { 25 /** 26 * @param cmd 27 * The command to execute 28 * @param arg0 29 * The first argument to the command, may be null 30 * @param arg1 31 * the second argument to the command, may be null 32 * @return the file descriptor of the started process. 33 * 34 */ createSubprocess(String command, String[] arguments, String[] environmentVariables, String workingDirectory)35 public static FileDescriptor createSubprocess(String command, String[] arguments, 36 String[] environmentVariables, String workingDirectory) { 37 return createSubprocess(command, arguments, environmentVariables, workingDirectory, null); 38 } 39 40 /** 41 * @param cmd 42 * The command to execute 43 * @param arguments 44 * Array of arguments, may be null 45 * @param environmentVariables 46 * Array of environment variables, may be null 47 * @param processId 48 * A one-element array to which the process ID of the started process will be written. 49 * @return the file descriptor of the opened process's psuedo-terminal. 50 * 51 */ createSubprocess(String command, String[] arguments, String[] environmentVariables, String workingDirectory, int[] processId)52 public static native FileDescriptor createSubprocess(String command, String[] arguments, 53 String[] environmentVariables, String workingDirectory, int[] processId); 54 setPtyWindowSize(FileDescriptor fd, int row, int col, int xpixel, int ypixel)55 public static native void setPtyWindowSize(FileDescriptor fd, int row, int col, int xpixel, 56 int ypixel); 57 58 /** 59 * Causes the calling thread to wait for the process associated with the receiver to finish 60 * executing. 61 * 62 * @return The exit value of the Process being waited on 63 * 64 */ waitFor(int processId)65 public static native int waitFor(int processId); 66 67 static { 68 System.loadLibrary("com_googlecode_android_scripting_Exec"); 69 } 70 } 71