Client/Server process terminations

[Riley_Rainey%10hnl1.ceo.dg.com at relay.cs.net]

I am investigating various aspects of writing software under SVR3 
using a client/server model.  I am looking for references (or simple 
programming tips) on a reliable mechanism that would allow a server 
to be made aware of a client process's unexpected termination.  
Anybody?
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Riley Rainey            Internet: riley%10hnl1.ceo.dg.com at relay.cs.net
Data General Corp.
Honolulu, Hawaii