/** Shrinks queue to maximum allowed size. */
private void shrink() {
long maxSize = this.maxSize;
int maxBlocks = this.maxBlocks;
int cnt = queue.sizex();
for (int i = 0;
i < cnt
&& (maxBlocks > 0 && queue.sizex() > maxBlocks
|| maxSize > 0 && curSize.longValue() > maxSize);
i++) {
GridCacheEntry<GridGgfsBlockKey, byte[]> entry = queue.poll();
if (entry == null) break; // Queue is empty.
byte[] val = entry.peek();
if (val != null)
changeSize(-val.length); // Change current size as we polled entry from the queue.
if (!entry.evict()) {
// Reorder entries which we failed to evict.
entry.removeMeta(META_NODE);
touch(entry);
}
}
}
/** {@inheritDoc} */
@Override
public long getCurrentSize() {
return curSize.longValue();
}
/**
* Change current size.
*
* @param delta Delta in bytes.
*/
private void changeSize(int delta) {
if (delta != 0) curSize.add(delta);
}