aclm_$down — Apollo

ACLM_$DOWN                        Domain/OS                         ACLM_$DOWN


NAME
     aclm_$down - deassert subsystem manager rights

SYNOPSIS (C)
     #include <apollo/base.h>
     #include <apollo/aclm.h>

     void aclm_$down(void)

SYNOPSIS (Pascal)
     %include '/sys/ins/base.ins.pas';
     %include '/sys/ins/aclm.ins.pas';

     procedure aclm_$down;

SYNOPSIS (FORTRAN)
     %include '/sys/ins/base.ins.ftn'
     %include '/sys/ins/aclm.ins.ftn'

           call aclm_$down

DESCRIPTION
     Aclm_$down deasserts a process' rights to access an object in a protected
     subsystem, which were asserted by a previous call to aclm_$up.

     Calling aclm_$up increments a counter in a process; calling aclm_$down
     decrements it.  Subsystem manager operations are enabled whenever the
     counter is nonzero.

     Note that the value of the counter set by aclm_$up is not inherited by
     child processes.  For instance, if a program calls aclm_$up, then exe-
     cutes a shell-script script_a, script_a will not have the subsystem
     rights granted by the aclm_$up call.

     Calling aclm_$down when subsystem manager rights are already deasserted
     has no effect.
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