Using Future with Meteor

using_future_with_meteor.js

function callToEngine(argument) {
    var Future = Npm.require('fibers/future');

    var fut = new Future();


    ///do stuff

    engine.on('close', function(code)
            {
                result = JSON.parse(answerBuffer);
                console.log('child process exited with code ' + code);
                fut.return(result);
            });

    return fut.wait();
}

// From http://stackoverflow.com/questions/16777917/meteor-execute-system-command-synchronously
// Additional reading : https://gist.github.com/possibilities/3443021