// Node.cpp#include "Node.h"// constructorNode::Node(Volume* volume, vnode_id id): fVolume(volume),fID(id),fKnownToVFS(false){}// destructorNode::~Node(){}// SetKnownToVFSvoidNode::SetKnownToVFS(bool known){fKnownToVFS = known;}// IsKnownToVFSboolNode::IsKnownToVFS() const{return fKnownToVFS;}