Discription of Event Management
Last Updated by Mark Spencer, Jan 9, 1999
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Events are the core method of communication within cheops, both between
agents, and between GUI interfaces and their primary agent.

An event begins with a length, reporting the size of the event, a header
length, a type, and a flag.  It may optionally include a sockaddr
structure if a proxy request is made by asserting the FLAG_PROXY in the
flags section.

The actual contents of the event are specific to the kind of event that is
involved.  The contents of events are well described in "event.h".