JS loop

jsloop.js

Slot.prototype.poll = function () {
    /*  This polls infinitely for new work in the queue and if they become
     *  available properly routes the input into execution.
     *
     *  Note that is very important to be careful to call semantics in this 
     *  function to prevent stack overflow.
     */
    var self = this; 
    
    self['swf'].pollForActivityTask(self['aws_opts'], function (err, res) {
        
        if (err) 
            self.emit('exception', err);

        if (null == res || !res.taskToken)
            self.poll();
        else 
            self.exec(res, function () { self.poll(); });
    });
}