trace()
#1[r2,l1] Object {
  #2[r1,l2] Name String [1 blocks] "˙"    #3[r1,l2] Object {
      #6[r1,l2] Name String [1 blocks] "net"        #15[r1,l2] String [2 blocks] "\x04\x00\x00\x00\x00˙˙˙"
      #9[r1,l2] Name String [2 blocks] "timers"        #11[r2,l1] Array(0) [ ]
      #12[r1,l2] Name String [2 blocks] "watches"        #14[r2,l1] Array(0) [ ]
      #17[r1,l2] Name String [2 blocks] "history"        #21[r1,l1] Array(59) [
          #98[r1,l2] Name Integer 45            #327[r1,l1] String [84 blocks] "MQTT.prototype.mqttConnect = function(clean) {\n  var cmd = TYPE.CONNECT << 4;\n  var flags = this.createFlagsForConnection({\n    clean_session: clean\n  });\n\n  var keep_alive = String.fromCharCode(this.keep_alive>>8, this.keep_alive&255);\n\n  /* payload */\n  var payload = this.mqttStr(this.client_id);\n  if( this.username ){\n    payload += this.mqttStr( this.username );\n    if( this.password ){\n      payload += this.mqttStr( this.password );\n    }\n  }\n\n  return this.mqttPacket(cmd,\n           this.mqttStr( this.protocol_name )/*protocol name*/+\n           this.protocol_level /*protocol level*/+\n           flags+\n           keep_alive,\n           payload);\n};"
          #135[r1,l2] Name Integer 46            #127[r1,l1] String [5 blocks] "/** PUBLISH control packet */"
          #104[r1,l2] Name Integer 47            #143[r1,l1] String [44 blocks] "MQTT.prototype.mqttPublish = function(topic, message, qos) {\n  var cmd = TYPE.PUBLISH << 4 | (qos << 1);\n  var pid = String.fromCharCode(C.PACKET_ID<<8, C.PACKET_ID&255);\n  // Packet id must be included for QOS > 0\n  var variable = (qos === 0) ? this.mqttStr(topic) : this.mqttStr(topic)+pid;\n  return this.mqttPacket(cmd, variable, message);\n};"
          #108[r1,l2] Name Integer 48            #109[r1,l1] String [5 blocks] "/** SUBSCRIBE control packet */"
          #67[r1,l2] Name Integer 49            #940[r1,l1] String [38 blocks] "MQTT.prototype.mqttSubscribe = function(topic, qos) {\n  var cmd = TYPE.SUBSCRIBE << 4 | 2;\n  var pid = String.fromCharCode(C.PACKET_ID<<8, C.PACKET_ID&255);\n  return this.mqttPacket(cmd,\n           pid/*Packet id*/,\n           this.mqttStr(topic)+\n           String.fromCharCode(qos)/*QOS*/);\n};"
          #65[r1,l2] Name Integer 50            #64[r1,l1] String [5 blocks] "/** UNSUBSCRIBE control packet */"
          #634[r1,l2] Name Integer 51            #436[r1,l1] String [32 blocks] "MQTT.prototype.mqttUnsubscribe = function(topic) {\n  var cmd = TYPE.UNSUBSCRIBE << 4 | 2;\n  var pid = String.fromCharCode(C.PACKET_ID<<8, C.PACKET_ID&255);\n  return this.mqttPacket(cmd,\n           pid/*Packet id*/,\n           this.mqttStr(topic));\n};"
          #506[r1,l2] Name Integer 52            #487[r1,l1] String [7 blocks] "/* Exports *************************************/"
          #581[r1,l2] Name Integer 53            #485[r1,l1] String [13 blocks] "/** This is 'exported' so it can be used with `require('MQTT.js').create(server, options)` */"
          #582[r1,l2] Name Integer 54            #505[r1,l1] String [11 blocks] "exports.create = function (server, options) {\n  return new MQTT(server, options);\n};"
          #583[r1,l2] Name Integer 55            #584[r1,l1] String [2 blocks] "echo(1);"
          #663[r1,l2] Name Integer 57            #715[r1,l1] String [2 blocks] "trace()"
          #623[r1,l2] Name Integer 58            #8[r1,l1] String [3 blocks] "process.memory()"
        ]
      #165[r1,l2] Name String [2 blocks] "modules"        #164[r1,l1] Object { }
    }
  #29[r1,l2] Name String [2 blocks] "console"    #30[r1,l1] NativeFunction 0x40222cc0 (1) { }
  #25[r1,l2] Name String [1 blocks] "JSON"    #24[r1,l1] NativeFunction 0x40222cb0 (1) { }
  #45[r1,l2] Name String [2 blocks] "process"    #44[r1,l1] NativeFunction 0x40222c60 (1) { }
  #47[r1,l2] Name String [2 blocks] "Modules"    #170[r1,l1] NativeFunction 0x40222ca0 (1) { }
  #160[r1,l2] Name String [2 blocks] "exports"    #156[r1,l1] Object {
      #504[r1,l2] Name String [2 blocks] "create"        #429[r1,l1] Function {
          #569[r1,l2] Name Param "server"             undefined
          #465[r1,l2] Name Param "options"             undefined
          #462[r1,l2] Name String [1 blocks] "˙cod"            #617[r1,l1] FlatString [4 blocks] "return new MQTT(server, options);"
        }
    }
  #120[r1,l2] Name String [1 blocks] "C"    #121[r1,l1] Object {
      #119[r1,l2] Name String [2 blocks] "PACKET_ID"= int 1
      #124[r1,l2] Name String [3 blocks] "PROTOCOL_LEVEL"= int 4
    }
  #174[r1,l2] Name String [1 blocks] "TYPE"    #69[r1,l1] Object {
      #70[r1,l2] Name String [2 blocks] "CONNECT"= int 1
      #72[r1,l2] Name String [2 blocks] "CONNACK"= int 2
      #74[r1,l2] Name String [2 blocks] "PUBLISH"= int 3
      #75[r1,l2] Name String [2 blocks] "PUBACK"= int 4
      #76[r1,l2] Name String [2 blocks] "PUBREC"= int 5
      #78[r1,l2] Name String [2 blocks] "PUBREL"= int 6
      #82[r1,l2] Name String [2 blocks] "PUBCOMP"= int 7
      #83[r1,l2] Name String [2 blocks] "SUBSCRIBE"= int 8
      #86[r1,l2] Name String [2 blocks] "SUBACK"= int 9
      #88[r1,l2] Name String [2 blocks] "UNSUBSCRIBE"= int 10
      #90[r1,l2] Name String [2 blocks] "UNSUBACK"= int 11
      #92[r1,l2] Name String [2 blocks] "PINGREQ"= int 12
      #94[r1,l2] Name String [2 blocks] "PINGRESP"= int 13
      #96[r1,l2] Name String [2 blocks] "DISCONNECT"= int 14
    }
  #52[r1,l2] Name String [1 blocks] "MQTT"    #55[r2,l1] Function {
      #54[r1,l2] Name Param "server"         undefined
      #56[r1,l2] Name Param "options"         undefined
      #58[r1,l2] Name String [1 blocks] "˙cod"        #212[r1,l1] FlatString [56 blocks] "this.server = server;\n  var options = options || {};\n  this.port = options.port || this.C.DEF_PORT;\n  this.client_id = options.client_id || this.mqttUid();\n  this.keep_alive = options.keep_alive || this.C.DEF_KEEP_ALIVE;\n  this.clean_session = options.clean_session || true;\n  this.username = options.username;\n  this.password = options.password;\n  this.client = false;\n  this.connected = false;\n  this.ping_interval =\n    this.keep_alive < this.C.PING_INTERVAL ? (this.keep_alive - 5) : this.C.PING_INTERVAL;\n  this.protocol_name = options.protocol_name || \"MQTT\";\n  this.protocol_level = this.createEscapedHex( options.protocol_level || C.PROTOCOL_LEVEL );"
      #381[r1,l2] Name String [2 blocks] "prototype"        #384[r1,l1] Object {
          #383[r1,l2] Name String [2 blocks] "constructor"            #55[r2,l2] ...
 
          #379[r1,l2] Name String [1 blocks] "C"            #378[r1,l1] Object {
              #377[r1,l2] Name String [2 blocks] "DEF_QOS"= int 0
              #375[r1,l2] Name String [2 blocks] "DEF_PORT"                #373[r1,l1] Integer 1883
              #372[r1,l2] Name String [3 blocks] "DEF_KEEP_ALIVE"= int 60
              #369[r1,l2] Name String [3 blocks] "CONNECT_TIMEOUT"                #366[r1,l1] Integer 5000
              #284[r1,l2] Name String [3 blocks] "PING_INTERVAL"= int 40
            }
          #435[r1,l2] Name String [2 blocks] "mqttStr"            #433[r1,l1] Function {
              #432[r1,l2] Name Param "s"                 undefined
              #273[r1,l2] Name String [1 blocks] "˙cod"                #449[r1,l1] FlatString [6 blocks] "return String.fromCharCode(s.length>>8, s.length&255)+s;"
            }
          #474[r1,l2] Name String [2 blocks] "mqttPacket"            #472[r1,l1] Function {
              #471[r1,l2] Name Param "cmd"                 undefined
              #470[r1,l2] Name Param "variable"                 undefined
              #468[r1,l2] Name Param "payload"                 undefined
              #275[r1,l2] Name String [1 blocks] "˙cod"                #495[r1,l1] FlatString [8 blocks] "return String.fromCharCode(cmd, variable.length+payload.length)+variable+payload;"
            }
          #568[r1,l2] Name String [2 blocks] "parsePublish"            #566[r1,l1] Function {
              #565[r1,l2] Name Param "data"                 undefined
              #428[r1,l2] Name String [1 blocks] "˙cod"                #511[r1,l1] FlatString [41 blocks] "if (data.length > 5 && typeof data !== undefined) {\n    var cmd = data.charCodeAt(0);\n    var rem_len = data.charCodeAt(1);\n    var var_len = data.charCodeAt(2) << 8 | data.charCodeAt(3);\n    return { topic: data.substr(4, var_len),\n             message: data.substr(4+var_len, rem_len-var_len),\n             dup: (cmd & 0b00001000) >> 3,\n             qos: (cmd & 0b00000110) >> 1,\n             retain: cmd & 0b00000001\n           };\n  }\n  else {\n    return undefined;\n  }"
            }
          #650[r1,l2] Name String [2 blocks] "mqttUid"            #560[r1,l1] Function {
              #645[r1,l2] Name String [1 blocks] "˙cod"                #561[r1,l1] FlatString [4 blocks] "return s4() + s4() + s4();"
              #646[r1,l2] Name String [1 blocks] "˙sco"                #461[r2,l1] Function {
                  #554[r1,l2] Name String [2 blocks] "return"                    undefined
                  #556[r1,l2] Name String [1 blocks] "s4"                    #557[r1,l1] Function {
                      #558[r1,l2] Name String [1 blocks] "˙cod"                        #635[r1,l1] FlatString [10 blocks] "return Math.floor((1 + Math.random()) * 0x10000)\n               .toString(16)\n               .substring(1);"
                      #559[r1,l2] Name String [1 blocks] "˙sco"                        #461[r2,l2] ...
 
                    }
                }
            }
          #700[r1,l2] Name String [3 blocks] "createEscapedHex"            #647[r1,l1] Function {
              #697[r1,l2] Name Param "number"                 undefined
              #460[r1,l2] Name String [1 blocks] "˙cod"                #717[r1,l1] FlatString [7 blocks] "return String.fromCharCode(parseInt( number.toString(16) , 16));"
            }
          #977[r1,l2] Name String [2 blocks] "connect"            #975[r1,l1] Function {
              #974[r1,l2] Name Param "client"                 undefined
              #48[r1,l2] Name String [1 blocks] "˙cod"                #740[r1,l1] FlatString [160 blocks] "var mqo = this;\n  var onConnect = function() {\n    console.log('Client connected');\n    client.write(mqo.mqttConnect(mqo.client_id));\n\n    // Disconnect if no CONNACK is received\n    mqo.ctimo = setTimeout(function() {\n      mqo.disconnect();\n    }, mqo.C.CONNECT_TIMEOUT);\n\n    // Set up regular keep_alive ping\n    mqo.pintr = setInterval(function() {\n      // console.log(\"Pinging MQTT server\");\n      mqo.ping();\n    }, mqo.ping_interval*1000);\n\n    // Incoming data\n    client.on('data', function(data) {\n      var type = data.charCodeAt(0) >> 4;\n\n      if(type === TYPE.PUBLISH) {\n        mqo.emit('publish', mqo.parsePublish(data));\n      }\n      else if(type === TYPE.PUBACK) {\n        // implement puback\n      }\n      else if(type === TYPE.SUBACK) {\n        // implement suback\n      }\n      else if(type === TYPE.UNSUBACK) {\n        // implement unsuback\n      }\n      else if(type === TYPE.PINGREQ) {\n        // silently reply to pings\n        client.write(TYPE.PINGRESP+\"\\x00\"); // reply to PINGREQ\n      }\n      else if(type === TYPE.PINGRESP) {\n        mqo.emit('ping_reply');\n      }\n      else if(type === TYPE.CONNACK) {\n        clearTimeout(mqo.ctimo);\n        if(data.charCodeAt(3) === 0) {\n          mqo.connected = true;\n          console.log(\"MQTT connection accepted\");\n          mqo.emit('connected');\n        }\n        else {\n          console.log(\"MQTT connection error\");\n        }\n      }\n      else {\n        console.log(\"MQTT unsupported packet type: \"+type);\n        console.log(\"[MQTT]\"+data.split(\"\").map(function(c) { return c.charCodeAt(0); }));\n      }\n    });\n\n    client.on('end', function() {\n      console.log('MQTT client disconnected');\n      clearInterval(mqo.pintr);\n      mqo.emit('disconnected');\n    });\n\n    mqo.client = client;\n  };\n  if (client) onConnect();\n  else client = require(\"net\").connect({host : mqo.server, port: mqo.port}, onConnect);"
            }
          #917[r1,l2] Name String [2 blocks] "disconnect"            #915[r1,l1] Function {
              #914[r1,l2] Name Param "topic"                 undefined
              #912[r1,l2] Name Param "message"                 undefined
              #50[r1,l2] Name String [1 blocks] "˙cod"                #943[r1,l1] FlatString [13 blocks] "this.client.write(String.fromCharCode(TYPE.DISCONNECT<<4)+\"\\x00\");\n  this.client.end();\n  this.client = false;\n  this.connected = false;"
            }
          #966[r1,l2] Name String [2 blocks] "publish"            #964[r1,l1] Function {
              #963[r1,l2] Name Param "topic"                 undefined
              #961[r1,l2] Name Param "message"                 undefined
              #959[r1,l2] Name Param "qos"                 undefined
              #278[r1,l2] Name String [1 blocks] "˙cod"                #386[r1,l1] FlatString [9 blocks] "var _qos = qos || this.C.DEF_QOS;\n  this.client.write(this.mqttPublish(topic, message, _qos));"
            }
          #907[r1,l2] Name String [2 blocks] "subscribe"            #693[r1,l1] Function {
              #692[r1,l2] Name Param "topic"                 undefined
              #414[r1,l2] Name Param "qos"                 undefined
              #396[r1,l2] Name String [1 blocks] "˙cod"                #405[r1,l1] FlatString [9 blocks] "var _qos = qos || this.C.DEF_QOS;\n  this.client.write(this.mqttSubscribe(topic, _qos));"
            }
          #430[r1,l2] Name String [2 blocks] "unsubscribe"            #438[r1,l1] Function {
              #439[r1,l2] Name Param "topic"                 undefined
              #398[r1,l2] Name String [1 blocks] "˙cod"                #476[r1,l1] FlatString [5 blocks] "this.client.write(this.mqttUnsubscribe(topic));"
            }
          #508[r1,l2] Name String [1 blocks] "ping"            #509[r1,l1] Function {
              #424[r1,l2] Name String [1 blocks] "˙cod"                #570[r1,l1] FlatString [7 blocks] "this.client.write(String.fromCharCode(TYPE.PINGREQ<<4)+\"\\x00\");"
            }
          #615[r1,l2] Name String [4 blocks] "createFlagsForConnection"            #611[r1,l1] Function {
              #610[r1,l2] Name Param "options"                 undefined
              #466[r1,l2] Name String [1 blocks] "˙cod"                #585[r1,l1] FlatString [18 blocks] "var flags = 0;\n  flags |= ( this.username )? 0x80 : 0;\n  flags |= ( this.username && this.password )? 0x40 : 0;\n  flags |= ( options.clean_session )? 0x02 : 0;\n  return this.createEscapedHex( flags );"
            }
          #326[r1,l2] Name String [2 blocks] "mqttConnect"            #324[r1,l1] Function {
              #323[r1,l2] Name Param "clean"                 undefined
              #662[r1,l2] Name String [1 blocks] "˙cod"                #321[r1,l1] String [77 blocks] "var cmd = TYPE.CONNECT << 4;\n  var flags = this.createFlagsForConnection({\n    clean_session: clean\n  });\n\n  var keep_alive = String.fromCharCode(this.keep_alive>>8, this.keep_alive&255);\n\n  /* payload */\n  var payload = this.mqttStr(this.client_id);\n  if( this.username ){\n    payload += this.mqttStr( this.username );\n    if( this.password ){\n      payload += this.mqttStr( this.password );\n    }\n  }\n\n  return this.mqttPacket(cmd,\n           this.mqttStr( this.protocol_name )/*protocol name*/+\n           this.protocol_level /*protocol level*/+\n           flags+\n           keep_alive,\n           payload);"
            }
          #142[r1,l2] Name String [2 blocks] "mqttPublish"            #146[r1,l1] Function {
              #147[r1,l2] Name Param "topic"                 undefined
              #148[r1,l2] Name Param "message"                 undefined
              #151[r1,l2] Name Param "qos"                 undefined
              #102[r1,l2] Name String [1 blocks] "˙cod"                #979[r1,l1] FlatString [25 blocks] "var cmd = TYPE.PUBLISH << 4 | (qos << 1);\n  var pid = String.fromCharCode(C.PACKET_ID<<8, C.PACKET_ID&255);\n  // Packet id must be included for QOS > 0\n  var variable = (qos === 0) ? this.mqttStr(topic) : this.mqttStr(topic)+pid;\n  return this.mqttPacket(cmd, variable, message);"
            }
          #941[r1,l2] Name String [3 blocks] "mqttSubscribe"            #51[r1,l1] Function {
              #286[r1,l2] Name Param "topic"                 undefined
              #683[r1,l2] Name Param "qos"                 undefined
              #279[r1,l2] Name String [1 blocks] "˙cod"                #691[r1,l1] String [30 blocks] "var cmd = TYPE.SUBSCRIBE << 4 | 2;\n  var pid = String.fromCharCode(C.PACKET_ID<<8, C.PACKET_ID&255);\n  return this.mqttPacket(cmd,\n           pid/*Packet id*/,\n           this.mqttStr(topic)+\n           String.fromCharCode(qos)/*QOS*/);"
            }
          #274[r1,l2] Name String [3 blocks] "mqttUnsubscribe"            #956[r1,l1] Function {
              #957[r1,l2] Name Param "topic"                 undefined
              #633[r1,l2] Name String [1 blocks] "˙cod"                #272[r1,l1] String [25 blocks] "var cmd = TYPE.UNSUBSCRIBE << 4 | 2;\n  var pid = String.fromCharCode(C.PACKET_ID<<8, C.PACKET_ID&255);\n  return this.mqttPacket(cmd,\n           pid/*Packet id*/,\n           this.mqttStr(topic));"
            }
        }
    }
}
=undefined
>process.memory()
={ "free": 278, "usage": 745, "total": 1023, "history": 265 }
>