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Node.js cluster together with Grunt
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var os = require('os'); | |
var async = require('async'); | |
var cluster = require('cluster'); | |
if (cluster.isWorker) { | |
process.on('message', function (msg) { | |
// Do the Phantom JS stuff | |
process.send(msg); | |
}); | |
return ; | |
} | |
module.exports = function (grunt) { | |
grunt.initConfig({ | |
Prathap: { | |
options : { | |
data: [1, 2, 3, 4, 5, 6, 7, 8], | |
targets: {}, | |
target: {} | |
} | |
} | |
}); | |
grunt.registerTask('Log', 'An example.', function () { | |
var done = this.async(); | |
var workers = os.cpus().map(function () { | |
return cluster.fork(); | |
}); | |
var queue = async.queue(function (msg, cb) { | |
var worker = workers.pop(); | |
worker.once('message', function (msg) { | |
workers.push(worker); | |
cb(null, msg); | |
}); | |
worker.send(msg); | |
}, workers.length); | |
async.each([1, 2, 3, 4, 5, 6, 7, 8], queue.push.bind(queue), function (err) { | |
if (err) { | |
throw err; | |
} | |
workers.forEach(function (worker) { | |
worker.kill(); | |
}); | |
console.log('Completed'); | |
done(); | |
}); | |
}); | |
}; | |
/* | |
When I run grunt Log. It's output is like below: | |
Running "Log" task | |
Running "Log" task | |
Running "Log" task | |
Running "Log" task | |
Running "Log" task | |
Running "Log" task | |
Running "Log" task | |
Running "Log" task | |
Running "Log" task | |
Completed | |
*/ | |
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