javascript - How to set a timeout for Firefox OS TCP Sockets -

i working on firefox-os app tries connect list of ip's in sequence through tcp socket api.

however, close socket if doesn't connect within few seconds, , if connection inactive more few seconds.

example:

var socket = navigator.moztcpsocket.open(ip, port); //would set timeout connection here socket.onopen = function(event){     var servicerequest = new object();     servicerequest.type = "myservice";     var sendstr = json.stringify(servicerequest);     sendstr+="\n";     sendstr = sendstr.tostring('utf-8');     socket.send(sendstr);     //and timeout receiving data here     socket.ondata = function(event){         //etc     } } 

there no way specify timeout far know. if want specify timeout, should use usual javascript settimeout, store id.

use onopen event on tcpsocket object cancel timeout. if timeout triggered. can call close method on socket.

var socket = navigator.moztcpsocket.open(ip, port);  var timeout = settimeout(function () {     socket.close() }, timeoutduration)  //would set timeout connection here socket.onopen = function(event){     // prevent timingout if open     cleartimeout(timeout)      var servicerequest = new object();     servicerequest.type = "myservice";     var sendstr = json.stringify(servicerequest);     sendstr+="\n";     sendstr = sendstr.tostring('utf-8');     socket.send(sendstr);     //and timeout receiving data here     socket.ondata = function(event){         //etc     } }