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dns: Minor cleanups

db4
Eduardo Cavazos 2008-05-25 05:15:41 -05:00
parent 69ef4430d5
commit 566c3db4b0
2 changed files with 13 additions and 41 deletions
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52
extra/dns/cache/cache.factor vendored
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@ -47,15 +47,9 @@ TUPLE: entry time data ;
SYMBOL: NX
: cache-nx ( query ttl -- )
ttl->time NX entry boa
table-add ;
: cache-nx ( query ttl -- ) ttl->time NX entry boa table-add ;
: nx? ( obj -- ? )
dup entry?
[ data>> NX = ]
[ drop f ]
if ;
: nx? ( obj -- ? ) dup entry? [ data>> NX = ] [ drop f ] if ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@ -72,27 +66,15 @@ SYMBOL: NX
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: entry-expired? ( entry -- ? ) time>> time->ttl 0 <= ;
: expired? ( entry -- ? ) time>> time->ttl 0 <= ;
: cache-get ( query -- result )
dup table-get ! query result
{
{
[ dup f = ] ! not in the cache
[ 2drop f ]
}
{
[ dup entry-expired? ] ! here but expired
[ drop table-rem f ]
}
{
[ dup nx? ] ! negative result has been cached
[ 2drop NX ]
}
{
[ t ]
[ query+entry->rrs ]
}
{ [ dup f = ] [ 2drop f ] } ! not in the cache
{ [ dup expired? ] [ drop table-rem f ] } ! here but expired
{ [ dup nx? ] [ 2drop NX ] } ! negative result cached
{ [ t ] [ query+entry->rrs ] } ! good to go
}
cond ;
@ -114,22 +96,10 @@ SYMBOL: NX
: cache-add ( query rr -- )
over table-get ! query rr entry
{
{
[ dup f = ] ! not in the cache
[ drop rr->entry table-add ]
}
{
[ dup nx? ]
[ drop over table-rem rr->entry table-add ]
}
{
[ dup entry-expired? ]
[ drop rr->entry table-add ]
}
{
[ t ]
[ rot drop add-rr-to-entry ]
}
{ [ dup f = ] [ drop rr->entry table-add ] }
{ [ dup nx? ] [ drop over table-rem rr->entry table-add ] }
{ [ dup expired? ] [ drop rr->entry table-add ] }
{ [ t ] [ rot drop add-rr-to-entry ] }
}
cond ;

2
extra/dns/resolver/resolver.factor
View File

@ -6,6 +6,8 @@ IN: dns.resolver
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! Need to cache records even in the case of name error
: cache-message ( message -- message )
dup dup rcode>> NAME-ERROR =
[