X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=altosdroid%2Fsrc%2Forg%2Faltusmetrum%2FAltosDroid%2FTelemetryService.java;h=3cb498e8a1995c05ddc2edc954846016dfe83c79;hp=88ba805cd44fbb1fb2f5ca65c285e847eb014a36;hb=3fe5c2f9fc01258d45c20070e9874d76bc6c8c07;hpb=fa8668931cbbc1506560222f2db7e427b514a351 diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java b/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java index 88ba805c..3cb498e8 100644 --- a/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java +++ b/altosdroid/src/org/altusmetrum/AltosDroid/TelemetryService.java @@ -1,5 +1,5 @@ /* - * Copyright © 2012 Mike Beattie + * Copyright © 2012 Mike Beattie * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -19,7 +19,9 @@ package org.altusmetrum.AltosDroid; import java.lang.ref.WeakReference; import java.util.ArrayList; -import java.util.concurrent.LinkedBlockingQueue; +import java.util.concurrent.TimeoutException; +import java.util.Timer; +import java.util.TimerTask; import android.app.Notification; //import android.app.NotificationManager; @@ -49,6 +51,8 @@ public class TelemetryService extends Service { static final int MSG_CONNECTED = 4; static final int MSG_CONNECT_FAILED = 5; static final int MSG_DISCONNECTED = 6; + static final int MSG_TELEMETRY = 7; + static final int MSG_SETFREQUENCY = 8; public static final int STATE_NONE = 0; public static final int STATE_READY = 1; @@ -60,15 +64,22 @@ public class TelemetryService extends Service { private int NOTIFICATION = R.string.telemetry_service_label; //private NotificationManager mNM; + // Timer - we wake up every now and then to decide if the service should stop + private Timer timer = new Timer(); + ArrayList mClients = new ArrayList(); // Keeps track of all current registered clients. final Handler mHandler = new IncomingHandler(this); final Messenger mMessenger = new Messenger(mHandler); // Target we publish for clients to send messages to IncomingHandler. // Name of the connected device - private BluetoothDevice device = null; - private AltosBluetooth mAltosBluetooth = null; + private BluetoothDevice device = null; + private AltosBluetooth mAltosBluetooth = null; + private AltosConfigData mConfigData = null; + private TelemetryReader mTelemetryReader = null; + private TelemetryLogger mTelemetryLogger = null; + + // internally track state of bluetooth connection private int state = STATE_NONE; - LinkedBlockingQueue telem; // Handler of incoming messages from clients. static class IncomingHandler extends Handler { @@ -82,8 +93,9 @@ public class TelemetryService extends Service { case MSG_REGISTER_CLIENT: s.mClients.add(msg.replyTo); try { - msg.replyTo.send(Message.obtain(null, AltosDroid.MSG_DEVNAME, s.device.getName())); - msg.replyTo.send(Message.obtain(null, AltosDroid.MSG_STATE_CHANGE, s.state, -1)); + // Now we try to send the freshly connected UI any relavant information about what + // we're talking to - Basically state and Config Data. + msg.replyTo.send(Message.obtain(null, AltosDroid.MSG_STATE_CHANGE, s.state, -1, s.mConfigData)); } catch (RemoteException e) { s.mClients.remove(msg.replyTo); } @@ -100,17 +112,30 @@ public class TelemetryService extends Service { break; case MSG_CONNECTED: if (D) Log.d(TAG, "Connected to device"); - s.sendMessageToClients(Message.obtain(null, AltosDroid.MSG_DEVNAME, s.device.getName())); - s.setState(STATE_CONNECTED); - s.mAltosBluetooth.add_monitor(s.telem); + s.connected(); break; case MSG_CONNECT_FAILED: if (D) Log.d(TAG, "Connection failed... retrying"); s.startAltosBluetooth(); break; case MSG_DISCONNECTED: - if (D) Log.d(TAG, "Disconnected from " + s.device.getName()); - s.stopAltosBluetooth(); + // Only do the following if we haven't been shutdown elsewhere.. + if (s.device != null) { + if (D) Log.d(TAG, "Disconnected from " + s.device.getName()); + s.stopAltosBluetooth(); + } + break; + case MSG_TELEMETRY: + s.sendMessageToClients(Message.obtain(null, AltosDroid.MSG_TELEMETRY, msg.obj)); + break; + case MSG_SETFREQUENCY: + if (s.state == STATE_CONNECTED) { + try { + s.mAltosBluetooth.set_radio_frequency((Double) msg.obj); + } catch (InterruptedException e) { + } catch (TimeoutException e) { + } + } break; default: super.handleMessage(msg); @@ -129,42 +154,101 @@ public class TelemetryService extends Service { } private void stopAltosBluetooth() { - if (D) Log.i(TAG, "Stopping BT"); + if (D) Log.d(TAG, "stopAltosBluetooth(): begin"); setState(STATE_READY); + if (mTelemetryReader != null) { + if (D) Log.d(TAG, "stopAltosBluetooth(): stopping TelemetryReader"); + mTelemetryReader.interrupt(); + try { + mTelemetryReader.join(); + } catch (InterruptedException e) { + } + mTelemetryReader = null; + } + if (mTelemetryLogger != null) { + if (D) Log.d(TAG, "stopAltosBluetooth(): stopping TelemetryLogger"); + mTelemetryLogger.stop(); + mTelemetryLogger = null; + } if (mAltosBluetooth != null) { - if (D) Log.i(TAG, "Closing AltosBluetooth"); + if (D) Log.d(TAG, "stopAltosBluetooth(): stopping AltosBluetooth"); mAltosBluetooth.close(); mAltosBluetooth = null; } device = null; - telem.clear(); + mConfigData = null; } private void startAltosBluetooth() { if (mAltosBluetooth == null) { - if (D) Log.i(TAG, "Connecting to " + device.getName()); + if (D) Log.d(TAG, String.format("startAltosBluetooth(): Connecting to %s (%s)", device.getName(), device.getAddress())); mAltosBluetooth = new AltosBluetooth(device, mHandler); setState(STATE_CONNECTING); } else { + // This is a bit of a hack - if it appears we're still connected, we treat this as a restart. + // So, to give a suitable delay to teardown/bringup, we just schedule a resend of a message + // to ourselves in a few seconds time that will ultimately call this method again. + // ... then we tear down the existing connection. + // We do it this way around so that we don't lose a reference to the device when this method + // is called on reception of MSG_CONNECT_FAILED in the handler above. + mHandler.sendMessageDelayed(Message.obtain(null, MSG_CONNECT, device), 3000); stopAltosBluetooth(); - mHandler.sendMessageDelayed(Message.obtain(null, MSG_CONNECT, device), 1000); } } private synchronized void setState(int s) { - if (D) Log.d(TAG, "setState() " + state + " -> " + s); + if (D) Log.d(TAG, "setState(): " + state + " -> " + s); state = s; - sendMessageToClients(Message.obtain(null, AltosDroid.MSG_STATE_CHANGE, state, -1)); + // This shouldn't be required - mConfigData should be null for any non-connected + // state, but to be safe and to reduce message size + AltosConfigData acd = (state == STATE_CONNECTED) ? mConfigData : null; + + sendMessageToClients(Message.obtain(null, AltosDroid.MSG_STATE_CHANGE, state, -1, acd)); } + private void connected() { + try { + mConfigData = mAltosBluetooth.config_data(); + } catch (InterruptedException e) { + } catch (TimeoutException e) { + // If this timed out, then we really want to retry it, but + // probably safer to just retry the connection from scratch. + mHandler.obtainMessage(MSG_CONNECT_FAILED).sendToTarget(); + return; + } + + setState(STATE_CONNECTED); + + mTelemetryReader = new TelemetryReader(mAltosBluetooth, mHandler); + mTelemetryReader.start(); + + mTelemetryLogger = new TelemetryLogger(this, mAltosBluetooth); + } + + + private void onTimerTick() { + if (D) Log.d(TAG, "Timer wakeup"); + try { + if (mClients.size() <= 0 && state != STATE_CONNECTED) { + stopSelf(); + } + } catch (Throwable t) { + Log.e(TAG, "Timer failed: ", t); + } + } + + @Override public void onCreate() { // Create a reference to the NotificationManager so that we can update our notifcation text later //mNM = (NotificationManager)getSystemService(NOTIFICATION_SERVICE); - telem = new LinkedBlockingQueue(); setState(STATE_READY); + + // Start our timer - first event in 10 seconds, then every 10 seconds after that. + timer.scheduleAtFixedRate(new TimerTask(){ public void run() {onTimerTick();}}, 10000L, 10000L); + } @Override @@ -203,6 +287,9 @@ public class TelemetryService extends Service { // Demote us from the foreground, and cancel the persistent notification. stopForeground(true); + // Stop our timer + if (timer != null) {timer.cancel();} + // Tell the user we stopped. Toast.makeText(this, R.string.telemetry_service_stopped, Toast.LENGTH_SHORT).show(); }