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  <title>on_readable (Rev::DNSResolver)</title>
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  <pre>     <span class="ruby-comment cmt"># File lib/rev/dns_resolver.rb, line 105</span>
105:     <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">on_readable</span>
106:       <span class="ruby-identifier">datagram</span> = <span class="ruby-ivar">@socket</span>.<span class="ruby-identifier">recvfrom_nonblock</span>(<span class="ruby-constant">DATAGRAM_SIZE</span>).<span class="ruby-identifier">first</span>
107:       <span class="ruby-identifier">address</span> = <span class="ruby-identifier">response_address</span> <span class="ruby-identifier">datagram</span> <span class="ruby-keyword kw">rescue</span> <span class="ruby-keyword kw">nil</span>
108:       <span class="ruby-identifier">address</span> <span class="ruby-value">? </span><span class="ruby-identifier">on_success</span>(<span class="ruby-identifier">address</span>) <span class="ruby-operator">:</span> <span class="ruby-identifier">on_failure</span>
109:       <span class="ruby-identifier">detach</span>
110:     <span class="ruby-keyword kw">end</span></pre>
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rev-0.1.2 doc/rdoc/classes/Rev/DNSResolver.src/M000132.html