import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
+//import android.os.Bundle;
+import android.os.Handler;
+//import android.os.Message;
import android.util.Log;
-import org.altusmetrum.AltosLib.*;
+import org.altusmetrum.altoslib_2.*;
public class AltosBluetooth extends AltosLink {
private ConnectThread connect_thread = null;
private Thread input_thread = null;
+ private Handler handler;
+
private BluetoothAdapter adapter;
private BluetoothDevice device;
private BluetoothSocket socket;
private OutputStream output;
// Constructor
- public AltosBluetooth(BluetoothDevice in_device) {
+ public AltosBluetooth(BluetoothDevice in_device, Handler in_handler) {
adapter = BluetoothAdapter.getDefaultAdapter();
device = in_device;
+ handler = in_handler;
connect_thread = new ConnectThread(device);
connect_thread.start();
- input_thread = new Thread(this);
- input_thread.start();
}
private class ConnectThread extends Thread {
}
public void run() {
- if (D) Log.i(TAG, "BEGIN ConnectThread");
+ if (D) Log.d(TAG, "ConnectThread: BEGIN");
setName("ConnectThread");
// Always cancel discovery because it will slow down a connection
adapter.cancelDiscovery();
- // Make a connection to the BluetoothSocket
- try {
- // This is a blocking call and will only return on a
- // successful connection or an exception
- socket.connect();
- } catch (IOException e) {
- // Close the socket
+ synchronized (AltosBluetooth.this) {
+ // Make a connection to the BluetoothSocket
try {
- socket.close();
- } catch (IOException e2) {
- if (D) Log.e(TAG, "unable to close() socket during connection failure", e2);
- }
- connection_failed();
- return;
- }
+ // This is a blocking call and will only return on a
+ // successful connection or an exception
+ socket.connect();
- try {
- synchronized (AltosBluetooth.this) {
input = socket.getInputStream();
output = socket.getOutputStream();
+ } catch (IOException e) {
+ // Close the socket
+ try {
+ socket.close();
+ } catch (IOException e2) {
+ if (D) Log.e(TAG, "ConnectThread: Failed to close() socket after failed connection");
+ }
+ input = null;
+ output = null;
+ AltosBluetooth.this.notifyAll();
+ handler.obtainMessage(TelemetryService.MSG_CONNECT_FAILED).sendToTarget();
+ if (D) Log.e(TAG, "ConnectThread: Failed to establish connection");
+ return;
+ }
- // Configure the newly connected device for telemetry
- print("~\nE 0\n");
- set_monitor(false);
+ input_thread = new Thread(AltosBluetooth.this);
+ input_thread.start();
- // Reset the ConnectThread because we're done
- AltosBluetooth.this.notify();
- connect_thread = null;
- if (D) Log.i(TAG, "Completed connect");
- }
- } catch (Exception e) {
- if (D) Log.e(TAG, "Failed to finish connection", e);
- e.printStackTrace();
+ // Configure the newly connected device for telemetry
+ print("~\nE 0\n");
+ set_monitor(false);
+
+ // Let TelemetryService know we're connected
+ handler.obtainMessage(TelemetryService.MSG_CONNECTED).sendToTarget();
+
+ // Notify other waiting threads, now that we're connected
+ AltosBluetooth.this.notifyAll();
+
+ // Reset the ConnectThread because we're done
+ connect_thread = null;
+
+ if (D) Log.d(TAG, "ConnectThread: Connect completed");
}
}
if (socket != null)
socket.close();
} catch (IOException e) {
- if (D) Log.e(TAG, "close() of connect socket failed", e);
+ if (D) Log.e(TAG, "ConnectThread: close() of connect socket failed", e);
}
}
}
- private synchronized void wait_connected() throws InterruptedException {
+ private synchronized void wait_connected() throws InterruptedException, IOException {
if (input == null) {
wait();
+ if (input == null) throw new IOException();
}
}
- private void connection_failed() {
- if (D) Log.i(TAG, "Bluetooth Connection failed!");
+ private void connection_lost() {
+ if (D) Log.e(TAG, "Connection lost during I/O");
+ handler.obtainMessage(TelemetryService.MSG_DISCONNECTED).sendToTarget();
}
-
+
public void print(String data) {
byte[] bytes = data.getBytes();
+ if (D) Log.d(TAG, "print(): begin");
try {
- if (D) Log.i(TAG, "Entering print();");
wait_connected();
output.write(bytes);
- if (D) Log.i(TAG, "Writing bytes: '" + data + "'");
+ if (D) Log.d(TAG, "print(): Wrote bytes: '" + data.replace('\n', '\\') + "'");
} catch (IOException e) {
- connection_failed();
+ connection_lost();
} catch (InterruptedException e) {
- connection_failed();
+ connection_lost();
}
}
+ public void putchar(byte c) {
+ byte[] bytes = { c };
+ if (D) Log.d(TAG, "print(): begin");
+ try {
+ wait_connected();
+ output.write(bytes);
+ if (D) Log.d(TAG, "print(): Wrote byte: '" + c + "'");
+ } catch (IOException e) {
+ connection_lost();
+ } catch (InterruptedException e) {
+ connection_lost();
+ }
+ }
+
public int getchar() {
try {
wait_connected();
return input.read();
} catch (IOException e) {
- connection_failed();
+ connection_lost();
} catch (java.lang.InterruptedException e) {
- connection_failed();
+ connection_lost();
}
return AltosLink.ERROR;
}
-
+
public void close() {
+ if (D) Log.d(TAG, "close(): begin");
synchronized(this) {
+ if (D) Log.d(TAG, "close(): synched");
+
if (connect_thread != null) {
+ if (D) Log.d(TAG, "close(): stopping connect_thread");
connect_thread.cancel();
connect_thread = null;
}
+ if (D) Log.d(TAG, "close(): Closing socket");
+ try {
+ socket.close();
+ } catch (IOException e) {
+ if (D) Log.e(TAG, "close(): unable to close() socket");
+ }
if (input_thread != null) {
+ if (D) Log.d(TAG, "close(): stopping input_thread");
try {
+ if (D) Log.d(TAG, "close(): input_thread.interrupt().....");
input_thread.interrupt();
+ if (D) Log.d(TAG, "close(): input_thread.join().....");
input_thread.join();
} catch (Exception e) {}
input_thread = null;
}
+ input = null;
+ output = null;
+ notifyAll();
}
}
+ // We override this method so that we can add some debugging. Not 100% elegant, but more useful
+ // than debugging one char at a time above in getchar()!
+ public void add_reply(AltosLine line) throws InterruptedException {
+ if (D) Log.d(TAG, String.format("Got REPLY: %s", line.line));
+ super.add_reply(line);
+ }
+
//public void flush_output() { super.flush_output(); }
+ // Stubs of required methods when extending AltosLink
public boolean can_cancel_reply() { return false; }
public boolean show_reply_timeout() { return true; }
public void hide_reply_timeout() { }
projects / fw / altos / blobdiff