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bind/doc/design/rdataset
2018-03-15 18:33:13 -07:00

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$Id: rdataset,v 1.6 2004/03/05 05:04:46 marka Exp $
Need way to "dup" an rdataset (i.e. different rdataset handle, same underlying
data).
DB addnode routine should take an rdataset *, which, if non-NULL, would be
attached to the added rdataset.
Need credibility, security status.
Cache security status in rdataset. Have rdataset supply methods to get/set
the security status. For RBTDB, it goes something like this:
get:
if (cached status == pending)
lock node lock
read rdataset's status
unlock node lock
update cached status
return (cached status)
set:
require that status cannot go backwards (e.g. OK to pending)
lock node lock
write rdataset's status
unlock node lock
update cached status