mirrors/prosody
1
0
Fork 0
mirror of https://github.com/bjc/prosody.git synced 2025-04-03 21:27:38 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

net.dns: Fix duplicated cache insertions by limiting outstanding queries per name to one

Browse source
This commit is contained in:
Kim Alvefur 2014-06-30 12:45:53 +02:00
parent 608509a8b5
commit 7ef57da047
1 changed files with 8 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

9
net/dns.lua
View file

@ -715,6 +715,14 @@ end
function resolver:query(qname, qtype, qclass) -- - - - - - - - - - -- query
qname, qtype, qclass = standardize(qname, qtype, qclass)
local co = coroutine.running();
local q = get(self.wanted, qclass, qtype, qname);
if co and q then
-- We are already waiting for a reply to an identical query.
set(self.wanted, qclass, qtype, qname, co, true);
return true;
end
if not self.server then self:adddefaultnameservers(); end
local question = encodeQuestion(qname, qtype, qclass);
@ -735,7 +743,6 @@ function resolver:query(qname, qtype, qclass) -- - - - - - - - - - -- query
self.active[id][question] = o;
-- remember which coroutine wants the answer
local co = coroutine.running();
if co then
set(self.wanted, qclass, qtype, qname, co, true);
--set(self.yielded, co, qclass, qtype, qname, true);