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Code Issues Projects Releases Wiki Activity

A ScheduledExecutorService is overkill for one task; use a Thread.

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This commit is contained in:
akwizgran
2013-04-26 13:39:56 +01:00
parent 80ac368cab
commit 239e532f23
1 changed files with 11 additions and 16 deletions
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27
briar-core/src/net/sf/briar/plugins/bluetooth/BluetoothPlugin.java
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@@ -1,6 +1,5 @@
package net.sf.briar.plugins.bluetooth;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static java.util.logging.Level.INFO;
import static java.util.logging.Level.WARNING;
import static javax.bluetooth.DiscoveryAgent.GIAC;
@@ -12,9 +11,6 @@ import java.util.Map;
import java.util.Map.Entry;
import java.util.UUID;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.Semaphore;
import java.util.logging.Logger;
@@ -55,12 +51,9 @@ class BluetoothPlugin implements DuplexPlugin {
private final DuplexPluginCallback callback;
private final long maxLatency, pollingInterval;
private final Semaphore discoverySemaphore = new Semaphore(1);
private final ScheduledExecutorService scheduler;
private volatile boolean running = false;
private volatile StreamConnectionNotifier socket = null;
// Non-null if running has ever been true
private volatile LocalDevice localDevice = null;
BluetoothPlugin(Executor pluginExecutor, Clock clock,
@@ -72,7 +65,6 @@ class BluetoothPlugin implements DuplexPlugin {
this.callback = callback;
this.maxLatency = maxLatency;
this.pollingInterval = pollingInterval;
scheduler = Executors.newScheduledThreadPool(0);
}
public TransportId getId() {
@@ -176,7 +168,6 @@ class BluetoothPlugin implements DuplexPlugin {
public void stop() {
running = false;
if(socket != null) tryToClose(socket);
scheduler.shutdownNow();
}
public boolean shouldPoll() {
@@ -276,7 +267,7 @@ class BluetoothPlugin implements DuplexPlugin {
}
public DuplexTransportConnection acceptInvitation(PseudoRandom r,
long timeout) {
final long timeout) {
if(!running) return null;
// Use the same pseudo-random UUID as the contact
byte[] b = r.nextBytes(UUID_BYTES);
@@ -297,13 +288,19 @@ class BluetoothPlugin implements DuplexPlugin {
return null;
}
// Close the socket when the invitation times out
Runnable close = new Runnable() {
new Thread() {
@Override
public void run() {
try {
Thread.sleep(timeout);
} catch(InterruptedException e) {
if(LOG.isLoggable(WARNING))
LOG.warning("Interrupted while waiting for invitation");
}
tryToClose(scn);
}
};
ScheduledFuture<?> f = scheduler.schedule(close, timeout, MILLISECONDS);
// Try to accept a connection and close the socket
}.start();
// Try to accept a connection
try {
StreamConnection s = scn.acceptAndOpen();
return new BluetoothTransportConnection(s, maxLatency);
@@ -311,8 +308,6 @@ class BluetoothPlugin implements DuplexPlugin {
// This is expected when the socket is closed
if(LOG.isLoggable(INFO)) LOG.log(INFO, e.toString(), e);
return null;
} finally {
if(f.cancel(false)) tryToClose(scn);
}
}