{
{  This process makes the request visable to the driver by obtaining an entry
{ in the request_buffer and storing the request pointers into the entry.
{ Since more than one copy of this program is executing the request_buffer
{ in_offset must be locked when incremented.  Note that the request_buffer is
{ a circular buffer with IN , OUT, and LIMIT offsets.  This process updates the
{ IN offset to point to the next available entry when an entry is assigned.
{ The file server driver updates the OUT offset when an entry is processed.
{ This process waits until a request buffer entry is available.
{
{    DFP$QUEUE_REQUEST (P_QUEUE_INTERFACE_TABLE, QUEUE_INDEX, QUEUE_ENTRY_INDEX
{        QUEUE_REQUEST_STATUS)
{
{  P_QUEUE_INTERFACE_TABLE: (input) This parameter specifies the
{       queue interface table that points  to the queue specified by queue index.
{                                     .
{  QUEUE_INDEX: (input) This parameter specifies the queue for which an entry
{       is to be assigned.
{
{  QUEUE_ENTRY_INDEX: (input) This parameter specifies the queue entry to
{       be queued.
{
{  QUEUE_REQUEST_STATUS: (output) This parameter returns wether the request
{       was queued.
{
