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Add a 1-liner Locks.checkNotLocked method to make it clearer than writing checkState(!lock.isLocked());

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This commit is contained in:
Mike Hearn 2013-03-07 16:18:53 +01:00
parent 0221b71418
commit 2fb3667c42
1 changed files with 7 additions and 0 deletions
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7
core/src/main/java/com/google/bitcoin/utils/Locks.java
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@ -20,6 +20,8 @@ import com.google.common.util.concurrent.CycleDetectingLockFactory;
import java.util.concurrent.locks.ReentrantLock;
import static com.google.common.base.Preconditions.checkState;
/**
* A wrapper around explicit lock creation that lets you control whether bitcoinj performs cycle detection or not.
*/
@ -59,4 +61,9 @@ public class Locks {
public static CycleDetectingLockFactory.Policy getPolicy() {
return policy;
}
/** Equivalent to checkState(!lock.isLocked()) but the English description makes it harder to overlook the ! */
public static void checkNotLocked(ReentrantLock lock) {
checkState(!lock.isLocked());
}
}