Arguments

 

event

   OpenVMS usage:event_code
   type:         longword (unsigned)
   access:       read only
   mechanism:    by value
   Event code indicating the type of cluster configuration event for
   which an AST is to be delivered. The event argument is a value
   indicating which type of event is of interest.

   Each event type has a symbolic name. The $CLUEVTDEF macro defines
   the following symbolic names:

   Symbolic Name      Description

   CLUEVT$C_ADD       One or more OpenVMS nodes have been added to
                      the OpenVMS Cluster system.
   CLUEVT$C_REMOVE    One or more OpenVMS nodes have been removed
                      from the OpenVMS Cluster system.
 

astadr

   OpenVMS usage:ast_procedure
   type:         procedure value
   access:       call without stack unwinding
   mechanism:    by reference
   Notification AST routine to receive control after a change in
   OpenVMS Cluster configuration occurs.
 

astprm

   OpenVMS usage:user_arg
   type:         longword (unsigned)
   access:       read only
   mechanism:    by value
   Optional AST parameter to be passed to the AST service routine.
   The astprm argument is a longword value containing the AST
   parameter.
 

acmode

   OpenVMS usage:access_mode
   type:         longword (unsigned)
   access:       read only
   mechanism:    by value
   Optional access mode at which the configuration event AST is to
   execute. The acmode argument is a longword containing the access
   mode.

   Each access mode has a symbolic name. The $PSLDEF macro defines
   the following symbols for the four access modes:

   Symbol         Access Mode

   PSL$C_KERNEL   Kernel
   PSL$C_EXEC     Executive
   PSL$C_SUPER    Supervisor
   PSL$C_USER     User

   The value of the access mode must not be more privileged than the
   access mode of the caller.
 

handle

   OpenVMS usage:identifier
   type:         quadword (unsigned)
   access:       write only
   mechanism:    by reference
   Optional identifier to receive a value that uniquely identifies
   this AST request. $SETCLUEVT sets this handle to a unique value
   so that it can later be used to identify the request in the
   $CLRCLUEVT and $TSTCLUEVT services.