/**
* Collect all the blocks at this INode and all its children. This operation is performed after
* a node is removed from the tree, and we want to GC all the blocks at this node and below.
*/
void collectSubtreeBlocks(Vector v) {
if (blocks != null) {
for (int i = 0; i < blocks.length; i++) {
v.add(blocks[i]);
}
}
for (Iterator it = children.values().iterator(); it.hasNext(); ) {
INode child = (INode) it.next();
child.collectSubtreeBlocks(v);
}
}
Block[] unprotectedDelete(UTF8 src) {
synchronized (rootDir) {
INode targetNode = rootDir.getNode(src.toString());
if (targetNode == null) {
return null;
} else {
//
// Remove the node from the namespace and GC all
// the blocks underneath the node.
//
if (!targetNode.removeNode()) {
return null;
} else {
Vector v = new Vector();
targetNode.collectSubtreeBlocks(v);
for (Iterator it = v.iterator(); it.hasNext(); ) {
Block b = (Block) it.next();
activeBlocks.remove(b);
}
return (Block[]) v.toArray(new Block[v.size()]);
}
}
}
}
