//import android.os.Bundle;
import android.os.Handler;
//import android.os.Message;
-import android.util.Log;
-import org.altusmetrum.altoslib_5.*;
+import org.altusmetrum.altoslib_7.*;
-public class AltosBluetooth extends AltosLink {
-
- // Debugging
- private static final String TAG = "AltosBluetooth";
- private static final boolean D = true;
+public class AltosBluetooth extends AltosDroidLink {
private ConnectThread connect_thread = null;
- private Thread input_thread = null;
-
- private Handler handler;
- private BluetoothAdapter adapter;
- private BluetoothDevice device;
+ private BluetoothDevice device;
private BluetoothSocket socket;
private InputStream input;
private OutputStream output;
+ private boolean pause;
// Constructor
- public AltosBluetooth(BluetoothDevice in_device, Handler in_handler) {
-// set_debug(D);
- adapter = BluetoothAdapter.getDefaultAdapter();
- device = in_device;
- handler = in_handler;
+ public AltosBluetooth(BluetoothDevice device, Handler handler, boolean pause) {
+ super(handler);
+ this.device = device;
+ this.handler = handler;
+ this.pause = pause;
- connect_thread = new ConnectThread(device);
+ connect_thread = new ConnectThread();
connect_thread.start();
-
}
- private class ConnectThread extends Thread {
- private final UUID SPP_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
-
- public ConnectThread(BluetoothDevice device) {
- BluetoothSocket tmp_socket = null;
-
- try {
- tmp_socket = device.createInsecureRfcommSocketToServiceRecord(SPP_UUID);
- } catch (IOException e) {
- e.printStackTrace();
- }
- socket = tmp_socket;
+ void connected() {
+ if (closed()) {
+ AltosDebug.debug("connected after closed");
+ return;
}
- public void run() {
- if (D) Log.d(TAG, "ConnectThread: BEGIN");
- setName("ConnectThread");
-
- // Always cancel discovery because it will slow down a connection
- adapter.cancelDiscovery();
-
- synchronized (AltosBluetooth.this) {
- // 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();
-
+ AltosDebug.check_ui("connected\n");
+ try {
+ synchronized(this) {
+ if (socket != null) {
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;
+ super.connected();
}
+ }
+ } catch (InterruptedException ie) {
+ connect_failed();
+ } catch (IOException io) {
+ connect_failed();
+ }
+ }
- input_thread = new Thread(AltosBluetooth.this);
- input_thread.start();
-
- // 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();
+ private void connect_failed() {
+ if (closed()) {
+ AltosDebug.debug("connect_failed after closed");
+ return;
+ }
- // Notify other waiting threads, now that we're connected
- AltosBluetooth.this.notifyAll();
+ close_device();
+ input = null;
+ output = null;
+ handler.obtainMessage(TelemetryService.MSG_CONNECT_FAILED, this).sendToTarget();
+ AltosDebug.error("ConnectThread: Failed to establish connection");
+ }
- // Reset the ConnectThread because we're done
- connect_thread = null;
+ void close_device() {
+ BluetoothSocket tmp_socket;
- if (D) Log.d(TAG, "ConnectThread: Connect completed");
- }
+ synchronized(this) {
+ tmp_socket = socket;
+ socket = null;
}
- public void cancel() {
+ if (tmp_socket != null) {
try {
- if (socket != null)
- socket.close();
+ tmp_socket.close();
} catch (IOException e) {
- if (D) Log.e(TAG, "ConnectThread: close() of connect socket failed", e);
+ AltosDebug.error("close_socket failed");
}
}
}
- public double frequency() {
- return frequency;
- }
-
- public int telemetry_rate() {
- return telemetry_rate;
- }
-
- public void save_frequency() {
- AltosPreferences.set_frequency(0, frequency);
+ public void close() {
+ super.close();
+ input = null;
+ output = null;
}
- public void save_telemetry_rate() {
- AltosPreferences.set_telemetry_rate(0, telemetry_rate);
- }
+ private final UUID SPP_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
- private synchronized void wait_connected() throws InterruptedException, IOException {
- if (input == null) {
- if (D) Log.d(TAG, "wait_connected...");
- wait();
- if (D) Log.d(TAG, "wait_connected done");
- if (input == null) throw new IOException();
- }
- }
+ private void create_socket(BluetoothDevice device) {
- private void connection_lost() {
- if (D) Log.e(TAG, "Connection lost during I/O");
- handler.obtainMessage(TelemetryService.MSG_DISCONNECTED).sendToTarget();
- }
+ BluetoothSocket tmp_socket = null;
- public void print(String data) {
- byte[] bytes = data.getBytes();
- if (D) Log.d(TAG, "print(): begin");
+ AltosDebug.check_ui("create_socket\n");
try {
- wait_connected();
- output.write(bytes);
- if (D) Log.d(TAG, "print(): Wrote bytes: '" + data.replace('\n', '\\') + "'");
+ tmp_socket = device.createInsecureRfcommSocketToServiceRecord(SPP_UUID);
} catch (IOException e) {
- connection_lost();
- } catch (InterruptedException e) {
- connection_lost();
+ e.printStackTrace();
}
- }
-
- 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();
+ if (socket != null) {
+ AltosDebug.debug("Socket already allocated %s", socket.toString());
+ close_device();
+ }
+ synchronized (this) {
+ socket = tmp_socket;
}
}
- private static final int buffer_size = 1024;
+ private class ConnectThread extends Thread {
- private byte[] buffer = new byte[buffer_size];
- private int buffer_len = 0;
- private int buffer_off = 0;
+ public void run() {
+ AltosDebug.debug("ConnectThread: BEGIN (pause %b)", pause);
+ setName("ConnectThread");
- public int getchar() {
- while (buffer_off == buffer_len) {
+ if (pause) {
+ try {
+ Thread.sleep(4000);
+ } catch (InterruptedException e) {
+ }
+ }
+
+ create_socket(device);
+ // Always cancel discovery because it will slow down a connection
try {
- wait_connected();
- buffer_len = input.read(buffer);
- buffer_off = 0;
- } catch (IOException e) {
- connection_lost();
- return AltosLink.ERROR;
- } catch (java.lang.InterruptedException e) {
- connection_lost();
- return AltosLink.ERROR;
+ BluetoothAdapter.getDefaultAdapter().cancelDiscovery();
+ } catch (Exception e) {
+ AltosDebug.debug("cancelDiscovery exception %s", e.toString());
}
- }
- return buffer[buffer_off++];
- }
- public void close() {
- if (D) Log.d(TAG, "close(): begin");
- synchronized(this) {
- if (D) Log.d(TAG, "close(): synched");
+ BluetoothSocket local_socket = null;
- 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");
+ synchronized (AltosBluetooth.this) {
+ if (!closed())
+ local_socket = socket;
}
- if (input_thread != null) {
- if (D) Log.d(TAG, "close(): stopping input_thread");
+
+ if (local_socket != null) {
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;
+ // Make a connection to the BluetoothSocket
+ // This is a blocking call and will only return on a
+ // successful connection or an exception
+ local_socket.connect();
+ } catch (Exception e) {
+ AltosDebug.debug("Connect exception %s", e.toString());
+ try {
+ local_socket.close();
+ } catch (Exception ce) {
+ AltosDebug.debug("Close exception %s", ce.toString());
+ }
+ local_socket = null;
+ }
+ }
+
+ if (local_socket != null) {
+ connected();
+ } else {
+ connect_failed();
}
- input = null;
- output = null;
- notifyAll();
+
+ AltosDebug.debug("ConnectThread: completed");
}
}
+ private synchronized void wait_connected() throws InterruptedException, IOException {
+ AltosDebug.check_ui("wait_connected\n");
+ if (input == null && socket != null) {
+ AltosDebug.debug("wait_connected...");
+ wait();
+ AltosDebug.debug("wait_connected done");
+ }
+ if (socket == null)
+ throw new IOException();
+ }
- // 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);
+ int write(byte[] buffer, int len) {
+ try {
+ output.write(buffer, 0, len);
+ } catch (IOException ie) {
+ return -1;
+ }
+ return len;
}
- //public void flush_output() { super.flush_output(); }
+ int read(byte[] buffer, int len) {
+ try {
+ return input.read(buffer, 0, len);
+ } catch (IOException ie) {
+ return -1;
+ }
+ }
// Stubs of required methods when extending AltosLink
public boolean can_cancel_reply() { return false; }