68 lines
2.3 KiB
Java
Executable File
68 lines
2.3 KiB
Java
Executable File
/*
|
|
* Copyright (C) 2007 The Android Open Source Project
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
package com.github.shadowsocks;
|
|
|
|
import java.io.FileDescriptor;
|
|
|
|
/**
|
|
* Utility methods for creating and managing a subprocess.
|
|
* <p/>
|
|
* Note: The native methods access a package-private java.io.FileDescriptor
|
|
* field to get and set the raw Linux file descriptor. This might break if the
|
|
* implementation of java.io.FileDescriptor is changed.
|
|
*/
|
|
|
|
public class Exec {
|
|
static {
|
|
java.lang.System.loadLibrary("exec");
|
|
}
|
|
|
|
/** Close a given file descriptor. */
|
|
public static native void close(FileDescriptor fd);
|
|
|
|
/**
|
|
* Create a subprocess. Differs from java.lang.ProcessBuilder in that a pty
|
|
* is used to communicate with the subprocess.
|
|
* <p/>
|
|
* Callers are responsible for calling Exec.close() on the returned file
|
|
* descriptor.
|
|
*
|
|
* @param rdt Whether redirect stdout and stderr
|
|
* @param cmd The command to execute.
|
|
* @param args An array of arguments to the command.
|
|
* @param envVars An array of strings of the form "VAR=value" to be added to the
|
|
* environment of the process.
|
|
* @param scripts The scripts to execute.
|
|
* @param processId A one-element array to which the process ID of the started
|
|
* process will be written.
|
|
* @return File descriptor
|
|
*/
|
|
public static native FileDescriptor createSubprocess(int rdt, String cmd, String[] args,
|
|
String[] envVars, String scripts, int[] processId);
|
|
|
|
/** Send SIGHUP to a process group. */
|
|
public static native void hangupProcessGroup(int processId);
|
|
|
|
/**
|
|
* Causes the calling thread to wait for the process associated with the
|
|
* receiver to finish executing.
|
|
*
|
|
* @return The exit value of the Process being waited on
|
|
*/
|
|
public static native int waitFor(int processId);
|
|
}
|