import java.lang.*;
import java.io.*;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.LinkedList;
-import java.util.Iterator;
-import altosui.AltosSerialMonitor;
-import libaltosJNI.libaltos;
-import libaltosJNI.altos_device;
-import libaltosJNI.SWIGTYPE_p_altos_file;
-import libaltosJNI.SWIGTYPE_p_altos_list;
+import java.util.concurrent.*;
+import java.util.*;
+
+import libaltosJNI.*;
/*
* This class reads from the serial port and places each received
public class AltosSerial implements Runnable {
+ static List<String> devices_opened = Collections.synchronizedList(new LinkedList<String>());
+
+ AltosDevice device;
SWIGTYPE_p_altos_file altos;
- LinkedList<LinkedBlockingQueue<String>> monitors;
- LinkedBlockingQueue<String> reply_queue;
+ LinkedList<LinkedBlockingQueue<AltosLine>> monitors;
+ LinkedBlockingQueue<AltosLine> reply_queue;
Thread input_thread;
String line;
+ byte[] line_bytes;
+ int line_count;
+ boolean monitor_mode;
public void run () {
int c;
c = libaltos.altos_getchar(altos, 0);
if (Thread.interrupted())
break;
- if (c == -1)
+ if (c == libaltosConstants.LIBALTOS_ERROR) {
+ for (int e = 0; e < monitors.size(); e++) {
+ LinkedBlockingQueue<AltosLine> q = monitors.get(e);
+ q.put(new AltosLine());
+ }
+ reply_queue.put (new AltosLine());
+ break;
+ }
+ if (c == libaltosConstants.LIBALTOS_TIMEOUT)
continue;
if (c == '\r')
continue;
synchronized(this) {
if (c == '\n') {
- if (line != "") {
- if (line.startsWith("VERSION")) {
+ if (line_count != 0) {
+ try {
+ line = new String(line_bytes, 0, line_count, "UTF-8");
+ } catch (UnsupportedEncodingException ue) {
+ line = "";
+ for (int i = 0; i < line_count; i++)
+ line = line + line_bytes[i];
+ }
+ if (line.startsWith("VERSION") || line.startsWith("CRC")) {
for (int e = 0; e < monitors.size(); e++) {
- LinkedBlockingQueue<String> q = monitors.get(e);
- q.put(line);
+ LinkedBlockingQueue<AltosLine> q = monitors.get(e);
+ q.put(new AltosLine (line));
}
- } else
- reply_queue.put(line);
+ } else {
+// System.out.printf("GOT: %s\n", line);
+ reply_queue.put(new AltosLine (line));
+ }
+ line_count = 0;
line = "";
}
} else {
- line = line + (char) c;
+ if (line_bytes == null) {
+ line_bytes = new byte[256];
+ } else if (line_count == line_bytes.length) {
+ byte[] new_line_bytes = new byte[line_count * 2];
+ System.arraycopy(line_bytes, 0, new_line_bytes, 0, line_count);
+ line_bytes = new_line_bytes;
+ }
+ line_bytes[line_count] = (byte) c;
+ line_count++;
}
}
}
}
}
- public String get_reply() throws InterruptedException {
- return reply_queue.take();
+ public void flush_output() {
+ if (altos != null)
+ libaltos.altos_flush(altos);
}
- public void add_monitor(LinkedBlockingQueue<String> q) {
- monitors.add(q);
+ public void flush_input() {
+ flush_output();
+ boolean got_some;
+ do {
+ try {
+ Thread.sleep(100);
+ } catch (InterruptedException ie) {
+ }
+ got_some = !reply_queue.isEmpty();
+ synchronized(this) {
+ if (!"VERSION".startsWith(line) &&
+ !line.startsWith("VERSION"))
+ line = "";
+ reply_queue.clear();
+ }
+ } while (got_some);
}
- public void remove_monitor(LinkedBlockingQueue<String> q) {
- monitors.remove(q);
+ public String get_reply() throws InterruptedException {
+ flush_output();
+ AltosLine line = reply_queue.take();
+ return line.line;
}
- public void flush () {
- synchronized(this) {
- if (!"VERSION".startsWith(line) && !line.startsWith("VERSION"))
- line = "";
- reply_queue.clear();
- }
+ 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 boolean opened() {
- return altos != null;
+ public void add_monitor(LinkedBlockingQueue<AltosLine> q) {
+ set_monitor(true);
+ monitors.add(q);
+ }
+
+ public void remove_monitor(LinkedBlockingQueue<AltosLine> q) {
+ monitors.remove(q);
+ if (monitors.isEmpty())
+ set_monitor(false);
}
public void close() {
if (altos != null) {
libaltos.altos_close(altos);
- altos = null;
}
if (input_thread != null) {
try {
}
input_thread = null;
}
+ if (altos != null) {
+ libaltos.altos_free(altos);
+ altos = null;
+ }
+ synchronized (devices_opened) {
+ devices_opened.remove(device.getPath());
+ }
}
public void putc(char c) {
}
public void print(String data) {
+// System.out.printf("\"%s\" ", data);
for (int i = 0; i < data.length(); i++)
putc(data.charAt(i));
}
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");
- try {
- Thread.sleep(200);
- } catch (InterruptedException e) {
- }
- flush();
+ print("~\nE 0\n");
+ flush_output();
+ set_monitor(monitor_mode);
+ set_channel(AltosPreferences.channel(device.getSerial()));
+ set_callsign(AltosPreferences.callsign());
}
public void set_channel(int channel) {
- if (altos != null)
- printf("m 0\nc r %d\nm 1\n", channel);
+ if (altos != null) {
+ if (monitor_mode)
+ printf("m 0\nc r %d\nm 1\n", channel);
+ else
+ printf("c r %d\n", channel);
+ flush_output();
+ }
+ }
+
+ void set_monitor(boolean monitor) {
+ monitor_mode = monitor;
+ if (altos != null) {
+ if (monitor)
+ printf("m 1\n");
+ else
+ printf("m 0\n");
+ flush_output();
+ }
+ }
+
+ public void set_callsign(String callsign) {
+ if (altos != null) {
+ printf ("c c %s\n", callsign);
+ flush_output();
+ }
}
- public AltosSerial() {
- altos = null;
- input_thread = null;
+ public AltosSerial(AltosDevice in_device) throws FileNotFoundException, AltosSerialInUseException {
+ device = in_device;
line = "";
- monitors = new LinkedList<LinkedBlockingQueue<String>> ();
- reply_queue = new LinkedBlockingQueue<String> ();
+ monitor_mode = false;
+ monitors = new LinkedList<LinkedBlockingQueue<AltosLine>> ();
+ reply_queue = new LinkedBlockingQueue<AltosLine> ();
+ open();
}
}
projects / fw / altos / blobdiff