markj 80dd3f5e73 Add event handlers for module load and unload events. The load handlers are
called after the module has been loaded, and the unload handlers are called
before the module is unloaded. Moreover, the module unload handlers may
return an error to prevent the unload from proceeding.

Reviewed by:	avg
MFC after:	2 weeks
2013-08-13 03:07:49 +00:00
..
2013-07-28 18:44:17 +00:00