File "SUReader.java"

Path: /WAF - Wireless Android Framework/WAF_0.1_Android/src/rfo/mougino/waf/SUReader.java
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Charset: utf-8

/****************************************************************************************************

BASIC! is an implementation of the Basic programming language for
Android devices.

Copyright (C) 2010 - 2014 Paul Laughton

This file is part of BASIC! for Android

    BASIC! 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 3 of the License, or
    (at your option) any later version.

    BASIC! 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 BASIC!.  If not, see <http://www.gnu.org/licenses/>.

    You may contact the author or current maintainers at http://rfobasic.freeforums.org

*************************************************************************************************/

package rfo.mougino.waf;

import java.io.DataInputStream;
import java.util.ArrayList;


//A read thread for Superuser read line. Required because read line is blocking.

public class SUReader {
	
	public DataInputStream theReader;
	public ReadThread theReadThread;
	ArrayList<String> theReadBuffer;
	public boolean stop;
	
	public SUReader (DataInputStream stream, ArrayList<String> buffer){ //Constructor
		theReader = stream;
		theReadBuffer = buffer;
	}
	
	public synchronized void start(){							// Start
		theReadThread = new ReadThread();
		theReadThread.start();
		stop = false;
	}
	
	public void stop(){											// Stop
		stop = true;
		theReader = null;
	}
	
	private class ReadThread extends Thread {
		public ReadThread (){
		}
		public void run(){										// Do the actual reading

			while (!stop) {
				String input = "";
				try{
					if (theReader != null) input = theReader.readLine();
				}
				catch (Exception e){
				}
				if (theReadBuffer != null) {
					synchronized (theReadBuffer) {
						if (input == null) { input = ""; }
						theReadBuffer.add(input);					// Put the input line into the buffer.
					}
				}
			}
		}
	}
	
}