package net.i2p.internal;
import net.i2p.data.i2cp.I2CPMessage;
import net.i2p.data.i2cp.I2CPMessageReader;
import net.i2p.util.I2PThread;
/**
* Get messages off an In-JVM queue, zero-copy.
*
* @author zzz
* @since 0.8.3
*/
public class QueuedI2CPMessageReader extends I2CPMessageReader {
private final I2CPMessageQueue in;
/**
* Creates a new instance of this QueuedMessageReader and spawns a pumper thread.
*/
public QueuedI2CPMessageReader(I2CPMessageQueue in, I2CPMessageEventListener lsnr) {
super(lsnr);
this.in = in;
_reader = new QueuedI2CPMessageReaderRunner();
_readerThread = new I2PThread(_reader, "I2CP Internal Reader " + __readerId.incrementAndGet(), true);
}
protected class QueuedI2CPMessageReaderRunner extends I2CPMessageReaderRunner implements Runnable {
public QueuedI2CPMessageReaderRunner() {
super();
}
/**
* Shuts the pumper down.
*/
@Override
public void cancelRunner() {
super.cancelRunner();
_readerThread.interrupt();
}
/**
* Pumps messages from the incoming message queue to the listener.
*/
@Override
protected void run2() {
while (_stayAlive) {
while (_doRun) {
// do read
I2CPMessage msg = null;
try {
msg = in.take();
if (msg.getType() == PoisonI2CPMessage.MESSAGE_TYPE) {
_listener.disconnected(QueuedI2CPMessageReader.this);
cancelRunner();
} else {
_listener.messageReceived(QueuedI2CPMessageReader.this, msg);
}
} catch (InterruptedException ie) {
// hint that we probably should check the continue running flag
}
}
// ??? unused
if (_stayAlive && !_doRun) {
// pause .5 secs when we're paused
try {
Thread.sleep(500);
} catch (InterruptedException ie) {
_listener.disconnected(QueuedI2CPMessageReader.this);
cancelRunner();
}
}
}
}
}
}