/** Copyright (C) 2013 Louis Teboul (a.k.a Androguide)
*
* admin@pimpmyrom.org || louisteboul@gmail.com
* http://pimpmyrom.org || http://androguide.fr
* 71 quai Clémenceau, 69300 Caluire-et-Cuire, FRANCE.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
**/
package com.secupwn.aimsicd.utils;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import io.freefair.android.util.logging.AndroidLogger;
import io.freefair.android.util.logging.Logger;
import static java.lang.System.nanoTime;
public class ChildProcess {
private final Logger log = AndroidLogger.forClass(ChildProcess.class);
private static final int PIPE_SIZE = 1024;
private class ChildReader extends Thread {
final InputStream mStream;
final StringBuffer mBuffer;
ChildReader(InputStream is, StringBuffer buf) {
mStream = is;
mBuffer = buf;
}
public void run() {
byte[] buf = new byte[PIPE_SIZE];
try {
int len;
while ((len = mStream.read(buf)) != -1) {
String s = new String(buf, 0, len);
mBuffer.append(s);
}
} catch (IOException e) {
log.debug(e.getMessage());
}
try {
mStream.close();
} catch (IOException e) {
log.debug("cannot close stream", e);
}
}
}
private class ChildWriter extends Thread {
private final OutputStream mStream;
private final String mBuffer;
ChildWriter(OutputStream os, String buf) {
mStream = os;
mBuffer = buf;
}
public void run() {
int off = 0;
byte[] buf = mBuffer.getBytes();
try {
while (off < buf.length) {
int len = Math.min(PIPE_SIZE, buf.length - off);
mStream.write(buf, off, len);
off += len;
}
} catch (IOException e) {
log.debug(e.getMessage());
}
try {
mStream.close();
} catch (IOException e) {
log.debug("cannot close stream", e);
}
}
}
private long mStartTime;
private Process mChildProc;
private ChildWriter mChildStdinWriter;
private ChildReader mChildStdoutReader;
private ChildReader mChildStderrReader;
private StringBuffer mChildStdout;
private StringBuffer mChildStderr;
private int mExitValue;
private long mEndTime;
public ChildProcess(String[] cmdarray, String childStdin) {
mStartTime = nanoTime();
mChildStdout = new StringBuffer();
mChildStderr = new StringBuffer();
try {
mChildProc = Runtime.getRuntime().exec(cmdarray);
if (childStdin != null) {
mChildStdinWriter = new ChildWriter(mChildProc.getOutputStream(), childStdin);
mChildStdinWriter.start();
}
mChildStdoutReader = new ChildReader(mChildProc.getInputStream(), mChildStdout);
mChildStdoutReader.start();
mChildStderrReader = new ChildReader(mChildProc.getErrorStream(), mChildStderr);
mChildStderrReader.start();
} catch (IOException e) {
log.debug(e.getMessage(), e);
}
}
public boolean isFinished() {
boolean finished = true;
if (mChildProc != null) {
try {
mChildProc.exitValue();
} catch (IllegalStateException e) {
finished = false;
}
}
return finished;
}
public int waitFinished() {
while (mChildProc != null) {
try {
mExitValue = mChildProc.waitFor();
mEndTime = nanoTime();
mChildProc = null;
mChildStderrReader.join();
mChildStderrReader = null;
mChildStdoutReader.join();
mChildStdoutReader = null;
if (mChildStdinWriter != null) {
mChildStdinWriter.join();
mChildStdinWriter = null;
}
} catch (InterruptedException e) {
log.debug(e.getMessage(), e);
}
}
return mExitValue;
}
public CommandResult getResult() {
if (!isFinished()) {
throw new IllegalThreadStateException("Child process running");
}
return new CommandResult(mStartTime, mExitValue, mChildStdout.toString(),
mChildStderr.toString(), mEndTime);
}
}