{
{    The purpose of this request is to receive an item from a queue.
{
{       PMP$RECEIVE_QUEUE_MESSAGE (QID, WAIT, MESSAGE, COMPLETE, STATUS)
{
{  QID: (input)  This parameter specifies the system supplied identifier of the
{        queue from which an item is to be taken.  This identifier is returned
{        by the PMP$CONNECT_QUEUE request.
{
{  WAIT: (input)  This parameter specifies the action to be taken if a receive
{        of an empty queue is attempted.  The valid parameters are:
{        osc$wait:  dont return control until a message is transferred.
{        osc$nowait:  return control whether or not a message has been
{              dequeued.  Message contents of PMC$NO_MESSAGE will be set if no
{              dequeueing took place.
{
{  MESSAGE: (output)  This parameter specifies the dequeued item.
{
{  COMPLETE: (output)  this parameter specifies whether the request was
{        completed (i.e., an item was dequeued) or that the request must be
{        reissued.
{
{  STATUS: (output) This parameter specifies the request status.
{       CONDITION:
{             pme$unknown_queue_identifier
{             pme$usage_bracket_error,
{             pme$error_segment_privilege.
{
