Asynchronous IO Server: Thin (Ruby) and Node.js. Any difference?

Question

I want to clear my concept of asynchronous I / O, a non-blocking server. Dealing with Node.js is easy under the concept

var express = require('express');
var app = express();

app.get('/test', function(req, res){
  setTimeout(function(){
    console.log("sleep doesn't block, and now return");
    res.send('success');
  }, 2000);
});

var server = app.listen(3000, function() {
  console.log('Listening on port %d', server.address().port);
});

I know that when Node.js waits 2 seconds for setTimeout, it can serve another request at the same time, as soon as 2 seconds pass, it will call the callback function.

How about in the world of Ruby, a thin server?

require 'sinatra'
require 'thin'
set :server, %w[thin]

get '/test' do
  sleep 2   <----
  "success"
end

The code snippet above uses a thin server (non-blocking, asynchronous I / O). When you are talking to an asynchronous IO, I want to ask, having reached sleep 2, that the server can serve another request at the same time because it sleep 2blocks the IO.

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Answer 1

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#asynchtest.rb
require 'sinatra'
require 'thin'
set :server, %w[thin]

get '/test' do
  puts "[#{Time.now.strftime("%H:%M:%S")}] logging /test starts on thread_id:#{Thread.current.object_id} \n"
  sleep 10
  "[#{Time.now.strftime("%H:%M:%S")}] success - id:#{Thread.current.object_id} \n"
end

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var express = require('express');
var app = express();

app.get('/test', function(req, res){
  console.log("[" + getTime() + "] logging /test starts\n");
  setTimeout(function(){
    console.log("sleep doen't block, and now return");
    res.send('[' + getTime() + '] success \n');
  },10000);
});

var server = app.listen(3000,function(){
  console.log("listening on port %d", server.address().port);
});

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Answer 2

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Answer 3

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