{
{   This request returns a list of mass storage Sets, indicating the classes
{ for each that are out of space.  Some classes are not constrained to a
{ particular Set (class "N" and "Q") while all others are.  A separate entry
{ with a Set name of osc$null_name is placed in the list to reflect the classes
{ that are not constrained to a particular Set.  If no classes are out of space
{ for a particular Set, the class field will be empty.
{
{      DMP$GET_OUT_OF_SPACE_SETS (OUT_OF_SPACE_SETS, SET_COUNT)
{
{ OUT_OF_SPACE_SETS:  (output) This parameter is an adaptable array which
{      returns a list of records giving the name of a mass storage Set and what
{      classes are out of space for that Set.  If the system has more Sets than
{      will fit in the array, information will be returned only for the number
{      that will fit.  Because of the special Set with osc$null_name, the
{      maximum number of Sets possible is one more than the maximum number of
{      volumes in the active volume table.
{
{ SET_COUNT: (output)  This parameter returns the actual number of Sets for
{      which information has been returned.
{
