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modules/s_dns_resolver: Ensure no double-queueing, at cost.

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This commit is contained in:
Jason Volk 2019-03-27 17:11:12 -07:00
parent fc09dd4034
commit 977840a246
1 changed files with 3 additions and 0 deletions
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3
modules/s_dns_resolver.cc
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@ -436,6 +436,9 @@ void
ircd::net::dns::resolver::queue_query(tag &tag)
{
assert(sendq.size() <= tags.size());
if(std::find(begin(sendq), end(sendq), tag.id) != end(sendq))
return;
sendq.emplace_back(tag.id);
dock.notify_one();