promise loop

gistfile1.js

function modeminit (mo) {



l(mo)

l('mo')

var m = new modem(mo.config)

Promise.reduce(mo.ports, function (retval, port) {
  return retval || m.openSerial(port); 
 })
.then(function (port) { 
  if (!port) 
  { 
    throw new Error('couldn\'t open anything'); 
  }
 l('something')
});
/*
this is what gets printed:
{ config: 
   { db: 
      { database: 'xxx',
        host: 'localhost',
        user: 'user',
        pass: 'xxx' } },
  ports: 
   [ { DEVNAME: '/dev/ttyUSB1',
       ID_MODEL: 'E173s 3G broadband stick (modem on)' },
     { DEVNAME: '/dev/ttyUSB0',
       ID_MODEL: 'E173s 3G broadband stick (modem on)' },
     { DEVNAME: '/dev/ttyUSB2',
       ID_MODEL: 'E173s 3G broadband stick (modem on)' } ] }
mo



*/

//part of modem.js

var serial = require('./Serial.js');
var Promise = require('bluebird');
var colors = require('colors');
var http = require('http');
// var  cnn;
var Pgb = require('pg-bluebird')
// var pgb = new Pgb()
var debug = false
// var running=false

function l (str) {
    console.log(str)
}
function ld (str) {
    if(debug)
        console.log(str)
}




//PRINCIPIO DEL SISTEMA

var Modem = function  (conf) {//mo es la informacion de la deteccion del modem
//l('INSTANCIA MODEM '.yellow+ conf.serial.port)
// l(mo.DEVNAME);
this.config=conf;
this.pgb = new Pgb();
this.running = false
    
}

Modem.prototype.openSerial =  function(p){
  this.config.serial.port = p
  l(this.config.serial.port+' abriendo puerto\n\n'.yellow)
    //console.log(port)
    // l('openserial')
    // l(this.config)
    var m = this
   // l(m)
    var deferred = new Promise.defer();
     this.s = new serial(this.config.serial.port);
     //console.log(s)
     var handler = function (data) {
            l('\nPUERTO '.yellow+ m.config.serial.port+ ' ABIERTO\n'.yellow);
             m.s.serialPort.write('ATE\r',undefined)
             //l(m)

            m.s.serialPort.on('data', function  (d) {
              l(d.toString())
            })
            this.running=true
            deferred.resolve(m.config.serial.port);
        }
    m.s.serialPort.once('open', handler);


    m.s.serialPort.once('close',function  (e) {
      l('se ha cerrado el serial')
      l(e)
    })

     m.s.serialPort.once('error',function  (e) {
      l('no puede abrir el serial')
      deferred.reject(e)
    })
    return deferred.promise;
}
module.exports = Modem