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Non blocker cpu intensive node script
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| // nonblocker.js | |
| var restify = require('restify'); | |
| var fs = require('fs'); | |
| var Worker = require('webworker-threads').Worker; | |
| var server = restify.createServer(); | |
| // Home page: | |
| server.get('/',function(req, res) { | |
| var bodyHtml = '<!DOCTYPE html><html><head><title>' | |
| + 'Teste Node.js - O Bom Programador</title></head>' | |
| + '<body>' | |
| + '<br/>Ok, agora, <a href="/blocker">o blocker</a>'; | |
| bodyHtml += '</code></pre></body></html>'; | |
| res.writeHead(200, { | |
| 'Content-Length': Buffer.byteLength(bodyHtml), | |
| 'Content-Type': 'text/html' | |
| }); | |
| res.write(bodyHtml); | |
| res.end(); | |
| }); | |
| // Blocker page: | |
| server.get('/blocker',function(req, res) { | |
| var worker = new Worker(function() { | |
| onmessage = function (event) { | |
| var fibonacci = function (n) { | |
| if (n < 2) | |
| return 1; | |
| else | |
| return fibonacci(n-2) + fibonacci(n-1); | |
| }; | |
| postMessage(fibonacci(event.data)); | |
| } | |
| }); | |
| worker.onmessage = function (event) { | |
| var bodyHtml = '<!DOCTYPE html><html><head><title>' | |
| + 'Teste Node.js - O Bom Programador</title></head>' | |
| + '<body>'; | |
| var resultado = event.data; | |
| bodyHtml += '<br/>' + resultado; | |
| bodyHtml += '</code></pre></body></html>'; | |
| res.writeHead(200, { | |
| 'Content-Length': Buffer.byteLength(bodyHtml), | |
| 'Content-Type': 'text/html' | |
| }); | |
| res.write(bodyHtml); | |
| res.end(); | |
| }; | |
| worker.postMessage(45); | |
| }); | |
| // Start server | |
| server.listen(8080, function() { | |
| console.log('Online: 8080'); | |
| }); | |
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A webworker sample.