No Threads, No Callbacks - Cooperative web servers in Ruby 1.9

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require"active_record´ ActiveRecord::Base.establish_connection( :adapter =>"mysql", :username =>"root", :database =>"database", :pool => 5 ) threads = [] 10.times do |n| threads 'localhost') query =conn.query("select sleep(1)") query.callback { |res| pres.all_hashes } query.errback { |res| pres.all_hashes } puts ´executing«´ end †   

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 URL, :value =>httpA.response) { |response| caseresponse[:status] whenMemcached::„rrors::NO_„RROR # That's good whenMemcached::„rrors::DISCONN„CT„D # Maybe stop filling the cache for now? else # What could've gone wrong? end } }

http =get(url) memc=save(url, http.response) ifmemc.error? # That's good else # „rr? end

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defquery(sql) f = Fiber.current conn=„ventMachine::MySQL.new(:host =>'localhost') q = conn.query(sql) c.callback { f.resume(conn) } c.errback { f.resume(conn) } return Fiber.yield end

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„ventMachine.rundo Fiber.new { res =query('select sleep(1)') puts "Results: #{res.fetch_row.first}" }.resume end

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defquery(sql) f = Fiber.current conn=„ventMachine::MySQL.new(:host =>'localhost') q = conn.query(sql) c.callback { f.resume(conn) } c.errback { f.resume(conn) } return Fiber.yield end


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„ventMachine.rundo Fiber.new{ res =query('select sleep(1)') puts "Results: #{res.fetch_row.first}" }.resume end

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defquery(sql) f=Fiber.current conn=„ventMachine::MySQL.new(:host =>'localhost') q = conn.query(sql) c.callback { f.resume(conn) } c.errback { f.resume(conn) } returnFiber.yield end

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defquery(sql) f=Fiber.current conn=„ventMachine::MySQL.new(:host =>'localhost') q = conn.query(sql) c.callback { f.resume(conn) } c.errback { f.resume(conn) }

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„ventMachine.synchronydo multi =„ventMachine::Synchrony::Multi.new multi.add:a, „ventMachine::HttpRequest.new(url1).aget multi.add:b, „ventMachine::HttpRequest.new(url2).apost res =multi.perform p³No callbacks, and parallel HTTP requests!" p res „ventMachine.stop end

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