lib/rainbows/writer_thread_spawn/client.rb in rainbows-3.1.0 vs lib/rainbows/writer_thread_spawn/client.rb in rainbows-3.2.0

@@ -19,10 +19,10 @@
       Rainbows::SyncClose.new(body) { |sync_body|
         q << [ :write_response, status, headers, sync_body, alive ]
       }
     end
 
-    if IO.respond_to?(:copy_stream) || IO.method_defined?(:sendfile_nonblock)
+    if IO.respond_to?(:copy_stream) || IO.method_defined?(:trysendfile)
       def write_response(status, headers, body, alive)
         self.q ||= queue_writer
         if body.respond_to?(:close)
           write_response_close(status, headers, body, alive)
         elsif body.respond_to?(:to_path)