public void append(E value) {
// Start the pointer at this node
LinkList<E> node = this;
node.lock.lock();
while (node.rest != null) {
LinkList<E> next = node.rest;
// Here's the hand-over-hand locking
try {
// Lock the next node
next.lock.lock();
} finally {
// unlock the current node
node.lock.unlock();
}
// Traverse
node = next;
}
// We're at the final node, so append and then unlock
try {
node.rest = new LinkList<E>(value);
// Let any waiting threads know that this node's link has changed
node.linkChanged.signalAll();
} finally {
node.lock.unlock();
}
}
