CPU Timer on VADS Needed

[Bryan@SU-SIERRA.ARPA.UUCP]

We have just acquired a Sequent B8000 running BSD4.2 Unix,
and the Verdix compiler.  Has anyone written a CPU timer
interface to Unix that can be called from Ada?  Would
appreciate any leads.  To be specific, we need a package
body that implements the following spec:

  package Cpu_Timer is
    function Cpu return Duration;
    -- returns accumulated Cpu for a process
  end Cpu_Timer;

Thanks in advance.   Doug & Geoff
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