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implement ConcurrentLinkedQueue.clear

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This commit is contained in:
Joel Dice 2011-11-07 15:52:42 -07:00
parent bcb62af2a1
commit a2c6cc8882
1 changed files with 5 additions and 0 deletions
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5
classpath/java/util/concurrent/ConcurrentLinkedQueue.java
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@ -25,6 +25,11 @@ public class ConcurrentLinkedQueue<T> {
private volatile Node<T> head = new Node(null, null); private volatile Node<T> head = new Node(null, null);
private volatile Node<T> tail = head; private volatile Node<T> tail = head;
public void clear() {
// todo: can we safely make this O(1)?
while (poll() != null) { }
}
public boolean add(T value) { public boolean add(T value) {
Node<T> n = new Node(value, null); Node<T> n = new Node(value, null);
while (true) { while (true) {