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Code Issues Projects Releases Wiki Activity

Cancel discovery after 10 seconds and try to connect.

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This commit is contained in:
akwizgran
2018-10-11 18:18:05 +01:00
parent efe15df940
commit 9515e93857
4 changed files with 27 additions and 9 deletions
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25
bramble-android/src/main/java/org/briarproject/bramble/plugin/bluetooth/AndroidBluetoothPlugin.java
View File

@@ -16,6 +16,7 @@ import org.briarproject.bramble.api.plugin.PluginException;
import org.briarproject.bramble.api.plugin.duplex.DuplexPluginCallback;
import org.briarproject.bramble.api.plugin.duplex.DuplexTransportConnection;
import org.briarproject.bramble.api.system.AndroidExecutor;
import org.briarproject.bramble.api.system.Clock;
import org.briarproject.bramble.util.AndroidUtils;
import java.io.Closeable;
@@ -23,6 +24,8 @@ import java.io.IOException;
import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.UUID;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ExecutionException;
@@ -45,6 +48,7 @@ import static android.bluetooth.BluetoothAdapter.STATE_OFF;
import static android.bluetooth.BluetoothAdapter.STATE_ON;
import static android.bluetooth.BluetoothDevice.ACTION_FOUND;
import static android.bluetooth.BluetoothDevice.EXTRA_DEVICE;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static java.util.logging.Level.INFO;
import static java.util.logging.Level.WARNING;
import static org.briarproject.bramble.util.LogUtils.logException;
@@ -57,8 +61,11 @@ class AndroidBluetoothPlugin extends BluetoothPlugin<BluetoothServerSocket> {
private static final Logger LOG =
Logger.getLogger(AndroidBluetoothPlugin.class.getName());
private static final int MAX_DISCOVERY_MS = 10_000;
private final AndroidExecutor androidExecutor;
private final Context appContext;
private final Clock clock;
private volatile boolean wasEnabledByUs = false;
private volatile BluetoothStateReceiver receiver = null;
@@ -68,12 +75,13 @@ class AndroidBluetoothPlugin extends BluetoothPlugin<BluetoothServerSocket> {
AndroidBluetoothPlugin(BluetoothConnectionLimiter connectionLimiter,
Executor ioExecutor, AndroidExecutor androidExecutor,
Context appContext, SecureRandom secureRandom, Backoff backoff,
DuplexPluginCallback callback, int maxLatency) {
Context appContext, SecureRandom secureRandom, Clock clock,
Backoff backoff, DuplexPluginCallback callback, int maxLatency) {
super(connectionLimiter, ioExecutor, secureRandom, backoff, callback,
maxLatency);
this.androidExecutor = androidExecutor;
this.appContext = appContext;
this.clock = clock;
}
@Override
@@ -213,7 +221,7 @@ class AndroidBluetoothPlugin extends BluetoothPlugin<BluetoothServerSocket> {
}
private Collection<String> discoverDevices() {
Collection<String> addresses = new ArrayList<>();
List<String> addresses = new ArrayList<>();
BlockingQueue<Intent> intents = new LinkedBlockingQueue<>();
DiscoveryReceiver receiver = new DiscoveryReceiver(intents);
IntentFilter filter = new IntentFilter();
@@ -223,8 +231,11 @@ class AndroidBluetoothPlugin extends BluetoothPlugin<BluetoothServerSocket> {
appContext.registerReceiver(receiver, filter);
try {
if (adapter.startDiscovery()) {
while (true) {
Intent i = intents.take();
long now = clock.currentTimeMillis();
long end = now + MAX_DISCOVERY_MS;
while (now < end) {
Intent i = intents.poll(end - now, MILLISECONDS);
if (i == null) break;
String action = i.getAction();
if (ACTION_DISCOVERY_STARTED.equals(action)) {
LOG.info("Discovery started");
@@ -239,6 +250,7 @@ class AndroidBluetoothPlugin extends BluetoothPlugin<BluetoothServerSocket> {
if (!addresses.contains(address))
addresses.add(address);
}
now = clock.currentTimeMillis();
}
} else {
LOG.info("Could not start discovery");
@@ -247,9 +259,12 @@ class AndroidBluetoothPlugin extends BluetoothPlugin<BluetoothServerSocket> {
LOG.info("Interrupted while discovering devices");
Thread.currentThread().interrupt();
} finally {
LOG.info("Cancelling discovery");
adapter.cancelDiscovery();
appContext.unregisterReceiver(receiver);
}
// Shuffle the addresses so we don't always try the same one first
Collections.shuffle(addresses);
return addresses;
}

7
bramble-android/src/main/java/org/briarproject/bramble/plugin/bluetooth/AndroidBluetoothPluginFactory.java
View File

@@ -11,6 +11,7 @@ import org.briarproject.bramble.api.plugin.duplex.DuplexPlugin;
import org.briarproject.bramble.api.plugin.duplex.DuplexPluginCallback;
import org.briarproject.bramble.api.plugin.duplex.DuplexPluginFactory;
import org.briarproject.bramble.api.system.AndroidExecutor;
import org.briarproject.bramble.api.system.Clock;
import java.security.SecureRandom;
import java.util.concurrent.Executor;
@@ -33,17 +34,19 @@ public class AndroidBluetoothPluginFactory implements DuplexPluginFactory {
private final Context appContext;
private final SecureRandom secureRandom;
private final EventBus eventBus;
private final Clock clock;
private final BackoffFactory backoffFactory;
public AndroidBluetoothPluginFactory(Executor ioExecutor,
AndroidExecutor androidExecutor, Context appContext,
SecureRandom secureRandom, EventBus eventBus,
SecureRandom secureRandom, EventBus eventBus, Clock clock,
BackoffFactory backoffFactory) {
this.ioExecutor = ioExecutor;
this.androidExecutor = androidExecutor;
this.appContext = appContext;
this.secureRandom = secureRandom;
this.eventBus = eventBus;
this.clock = clock;
this.backoffFactory = backoffFactory;
}
@@ -65,7 +68,7 @@ public class AndroidBluetoothPluginFactory implements DuplexPluginFactory {
MAX_POLLING_INTERVAL, BACKOFF_BASE);
AndroidBluetoothPlugin plugin = new AndroidBluetoothPlugin(
connectionLimiter, ioExecutor, androidExecutor, appContext,
secureRandom, backoff, callback, MAX_LATENCY);
secureRandom, clock, backoff, callback, MAX_LATENCY);
eventBus.addListener(plugin);
return plugin;
}