Arguments

 

cap_num

   OpenVMS usage:longword
   type:         longword (unsigned)
   access:       read only
   mechanism:    by 32- or 64-bit reference
   Capability number to be released by the calling Kernel thread.
   This number can range from 1 to 16. The cap_num argument is
   the 32- or 64-bit address of the longword containing the user
   capability number.
 

prev_mask

   OpenVMS usage:mask_quadword
   type:         quadword (unsigned)
   access:       write only
   mechanism:    by 32- or 64-bit reference
   The previous user capability reservation mask before execution
   of this service call. The prev_mask argument is the 32- or 64-bit
   address of a quadword into which the service writes a quadword
   bit mask specifying the previously reserved user capabilities.
 

flags

   OpenVMS usage:mask_quadword
   type:         quadword (unsigned)
   access:       read only
   mechanism:    by 32- or 64-bit reference
   Options selected for the user capability reservation. The flags
   argument is a quadword bit vector wherein a bit corresponds to an
   option.

   Each option (bit) has a symbolic name, which the $CAPDEF macro
   defines. The flags argument is constructed by performing a
   logical OR operation using the symbolic names of each desired
   option.

   At this time, all bits are Reserved to VSI and must be 0.