javascript - Using transferable objects from a Web Worker -

i have code create web worker:

w = new worker("webwork.js"); w.onmessage = function(event) { alert(event.data); } 

and webwork.js code web worker:

self.onmessage = function(event) {     //var ss=r;  //causes error because of undefined     var ss="";     for(var currprop in event) {         ss+=("event."+currprop+"="+event[currprop]+"\n");     }     postmessage(ss); } 

now want transfer 128-megabyte arraybuffer code:

var r = new arraybuffer(1048576*128); w.postmessage(0, [r]); 

---

now have supposedly transferred variable r, how access web worker itself. have tried event.r, r, self.r , other things trying add second function argument array of arraybuffers, nothing works.

how can access transferred variable(s) web worker?

postmesage(amessage, transferlist) 

in transferlist must specify transferable objects, contained in amessage:

var objdata = {     str: "string",     ab: new arraybuffer(100),     i8: new int8array(200) }; objworker.postmessage(objdata, [objdata.ab, objdata.i8.buffer]); 

on other side:

self.onmessage = function(objevent) {     var strtext = objevent.data.str;     var objtypedarray = objevent.data.ab;     var objtypedarrayview = objevent.data.i8; }