import java.lang.*;
import java.io.*;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.LinkedList;
-import java.util.Iterator;
+import java.util.concurrent.*;
+import java.util.*;
import libaltosJNI.*;
public class AltosSerial implements Runnable {
+ static List<String> devices_opened = Collections.synchronizedList(new LinkedList<String>());
+
+ AltosDevice device;
SWIGTYPE_p_altos_file altos;
LinkedList<LinkedBlockingQueue<AltosLine>> monitors;
LinkedBlockingQueue<AltosLine> reply_queue;
return line.line;
}
+ public String get_reply(int timeout) throws InterruptedException {
+ flush_output();
+ AltosLine line = reply_queue.poll(timeout, TimeUnit.MILLISECONDS);
+ if (line == null)
+ return null;
+ return line.line;
+ }
+
public void add_monitor(LinkedBlockingQueue<AltosLine> q) {
set_monitor(true);
monitors.add(q);
set_monitor(false);
}
- public boolean opened() {
- return altos != null;
- }
-
public void close() {
if (altos != null) {
libaltos.altos_close(altos);
libaltos.altos_free(altos);
altos = null;
}
+ synchronized (devices_opened) {
+ devices_opened.remove(device.getPath());
+ }
}
public void putc(char c) {
print(String.format(format, arguments));
}
- public void open(altos_device device) throws FileNotFoundException {
- close();
+ private void open() throws FileNotFoundException, AltosSerialInUseException {
+ synchronized (devices_opened) {
+ if (devices_opened.contains(device.getPath()))
+ throw new AltosSerialInUseException(device);
+ devices_opened.add(device.getPath());
+ }
altos = libaltos.altos_open(device);
if (altos == null)
- throw new FileNotFoundException(device.getPath());
+ throw new FileNotFoundException(device.toShortString());
input_thread = new Thread(this);
input_thread.start();
print("~\nE 0\n");
}
}
- public AltosSerial() {
- altos = null;
- input_thread = null;
+ public AltosSerial(AltosDevice in_device) throws FileNotFoundException, AltosSerialInUseException {
+ device = in_device;
line = "";
monitor_mode = false;
monitors = new LinkedList<LinkedBlockingQueue<AltosLine>> ();
reply_queue = new LinkedBlockingQueue<AltosLine> ();
+ open();
}
}