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Code Issues Projects Releases Wiki Activity

Add thread safety, null safety annotations.

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This commit is contained in:
akwizgran
2018-06-12 17:50:58 +01:00
parent d7f39af6d1
commit 6703be1c32
1 changed files with 10 additions and 0 deletions
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10
bramble-android/src/main/java/org/briarproject/bramble/util/RenewableWakeLock.java
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@@ -2,14 +2,21 @@ package org.briarproject.bramble.util;
import android.os.PowerManager; import android.os.PowerManager;
import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
import java.util.concurrent.ScheduledExecutorService; import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture; import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeUnit;
import java.util.logging.Logger; import java.util.logging.Logger;
import javax.annotation.Nullable;
import javax.annotation.concurrent.ThreadSafe;
import static java.util.concurrent.TimeUnit.MILLISECONDS; import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static java.util.logging.Level.INFO; import static java.util.logging.Level.INFO;
@ThreadSafe
@NotNullByDefault
public class RenewableWakeLock { public class RenewableWakeLock {
private static final Logger LOG = private static final Logger LOG =
@@ -29,7 +36,9 @@ public class RenewableWakeLock {
private final Runnable renewTask; private final Runnable renewTask;
private final Object lock = new Object(); private final Object lock = new Object();
@Nullable
private PowerManager.WakeLock wakeLock; // Locking: lock private PowerManager.WakeLock wakeLock; // Locking: lock
@Nullable
private ScheduledFuture future; // Locking: lock private ScheduledFuture future; // Locking: lock
public RenewableWakeLock(PowerManager powerManager, public RenewableWakeLock(PowerManager powerManager,
@@ -80,6 +89,7 @@ public class RenewableWakeLock {
LOG.info("Already released"); LOG.info("Already released");
return; return;
} }
if (future == null) throw new AssertionError();
future.cancel(false); future.cancel(false);
future = null; future = null;
wakeLock.release(); wakeLock.release();