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  <pre><span class="ruby-comment cmt"># File lib/rack/server.rb, line 247</span>
    <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">start</span> <span class="ruby-operator">&amp;</span><span class="ruby-identifier">blk</span>
      <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:warn</span>]
        <span class="ruby-identifier">$-w</span> = <span class="ruby-keyword kw">true</span>
      <span class="ruby-keyword kw">end</span>

      <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">includes</span> = <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:include</span>]
        <span class="ruby-identifier">$LOAD_PATH</span>.<span class="ruby-identifier">unshift</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">includes</span>)
      <span class="ruby-keyword kw">end</span>

      <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">library</span> = <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:require</span>]
        <span class="ruby-identifier">require</span> <span class="ruby-identifier">library</span>
      <span class="ruby-keyword kw">end</span>

      <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:debug</span>]
        <span class="ruby-identifier">$DEBUG</span> = <span class="ruby-keyword kw">true</span>
        <span class="ruby-identifier">require</span> <span class="ruby-value str">'pp'</span>
        <span class="ruby-identifier">p</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:server</span>]
        <span class="ruby-identifier">pp</span> <span class="ruby-identifier">wrapped_app</span>
        <span class="ruby-identifier">pp</span> <span class="ruby-identifier">app</span>
      <span class="ruby-keyword kw">end</span>

      <span class="ruby-identifier">check_pid!</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:pid</span>]

      <span class="ruby-comment cmt"># Touch the wrapped app, so that the config.ru is loaded before</span>
      <span class="ruby-comment cmt"># daemonization (i.e. before chdir, etc).</span>
      <span class="ruby-identifier">wrapped_app</span>

      <span class="ruby-identifier">daemonize_app</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:daemonize</span>]

      <span class="ruby-identifier">write_pid</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:pid</span>]

      <span class="ruby-identifier">trap</span>(<span class="ruby-identifier">:INT</span>) <span class="ruby-keyword kw">do</span>
        <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">server</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-identifier">:shutdown</span>)
          <span class="ruby-identifier">server</span>.<span class="ruby-identifier">shutdown</span>
        <span class="ruby-keyword kw">else</span>
          <span class="ruby-identifier">exit</span>
        <span class="ruby-keyword kw">end</span>
      <span class="ruby-keyword kw">end</span>

      <span class="ruby-identifier">server</span>.<span class="ruby-identifier">run</span> <span class="ruby-identifier">wrapped_app</span>, <span class="ruby-identifier">options</span>, <span class="ruby-operator">&amp;</span><span class="ruby-identifier">blk</span>
    <span class="ruby-keyword kw">end</span></pre>
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