Arguments

 

header

   OpenVMS usage:quadword_signed
   type:         quadword integer (signed)
   access:       modify
   mechanism:    by reference

   Queue header specifying the queue from which entry will be
   removed. The header argument contains the address of this signed
   aligned quadword integer. The header argument must be initialized
   to zero before first use of the queue; zero means an empty queue.

   On Alpha and I64 systems, the header argument must contain a
   32-bit address. A 64-bit address results in an illegal operand
   exception.
 

remque-address

   OpenVMS usage:address
   type:         longword (unsigned)
   access:       write only
   mechanism:    by reference

   Address of the removed entry. The remque-address argument is the
   address of an unsigned longword that contains this address. If
   the queue was empty, remque-address is set to the address of the
   header.

   On Alpha and I64 systems, the remque-address argument must
   contain a 32-bit address. A 64-bit address results in an illegal
   operand exception.
 

retry-count

   OpenVMS usage:longword_unsigned
   type:         longword (unsigned)
   access:       read only
   mechanism:    by reference

   The number of times the operation is to be retried in case
   of secondary-interlock failure of the queue instruction in a
   processor-shared memory application. The retry-count argument is
   the address of a longword that contains the retry count value. A
   value of 1 causes no retries. The default value is 10.