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require "./rr"
require "./settings"
require "./response"
module AsyncDNS
class Resolver
getter :settings
getter settings : Settings
enum Error
NO_NAME_SERVER
end
private struct Context
def initialize(@id : UInt16, @settings : Settings,
@block : Response | Error ->)
end
end
def resolve(query, &block : Response | Error ->)
def resolve(query : Query, &block : Response | Error ->)
id : UInt16
while true
id = Random::Secure.rand(UInt16::MIN..UInt16::MAX)
break unless @queries.has_key?(id)
end
if @settings.nameservers.empty?
yield Error::NO_NAME_SERVER
return
end
send(Context.new(id, settings.dup, block))
end
def send(context : Context)
private def send(context : Context)
@queries[context.@id] = context
# TODO
end
def stop
# TODO
end
end
end
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