cca.txt

Cordova (cca):
// global variables
var data = null;
var port = 4242;
undefined
data = null;
chrome.socket.create('udp', function(s) {
  port = port + 1;
  console.log("s.socketId: " + s.socketId);
  // listen
  chrome.socket.bind(s.socketId, '0.0.0.0', port, function(t) {
    console.log("t: " + t);
    // notice the null for buf size
    chrome.socket.recvFrom(s.socketId, null, function(u) {
      console.log("recvFrom has data");
      data = u;
    });
  });
  // send something?
  b = new ArrayBuffer(1);
  v = new Uint8Array(b);
  v[0] = 42;
  console.log(b);
  // maybe not
  //chrome.socket.sendTo(s.socketId, b, '127.0.0.1', port);
});
s.socketId: 14
ArrayBuffer {}
t: 0
recvFrom has data
undefined
data
Object {resultCode: 0}
// expect data == null
console.log(data);
Object {resultCode: 0}
undefined

dartium.txt

Chromium (actually Dartium):
// global variables
var data = null;
var port = 4242;
undefined
//test case, sort of
data = null;
chrome.socket.create('udp', function(s) {
  port = port + 1;
  console.log("s.socketId: " + s.socketId);
  // listen
  chrome.socket.bind(s.socketId, '0.0.0.0', port, function(t) {
    console.log("t: " + t);
    // notice the null for buf size
    chrome.socket.recvFrom(s.socketId, null, function(u) {
      console.log("recvFrom has data");
      data = u;
    });
  });
  // send something?
  b = new ArrayBuffer(1);
  v = new Uint8Array(b);
  v[0] = 42;
  console.log(b);
  // maybe not
  //chrome.socket.sendTo(s.socketId, b, '127.0.0.1', port);
});
undefined
s.socketId: 6 VM128:6
ArrayBuffer {} VM128:20
t: 0 VM128:9
// expect data == null
console.log(data);
null VM129:3
undefined

testcase.js

/////////////////////////////////////////////
// global variables
var data = null;
var port = 4242;
/////////////////////////////////////////////
//test case, sort of
data = null;
chrome.socket.create('udp', function(s) {
  port = port + 1;
  console.log("s.socketId: " + s.socketId);
  // listen
  chrome.socket.bind(s.socketId, '0.0.0.0', port, function(t) {
    console.log("t: " + t);
    // notice the null for buf size
    chrome.socket.recvFrom(s.socketId, null, function(u) {
      console.log("recvFrom has data");
      data = u;
    });
  });
  // send something?
  b = new ArrayBuffer(1);
  v = new Uint8Array(b);
  v[0] = 42;
  console.log(b);
  // maybe not
  //chrome.socket.sendTo(s.socketId, b, '127.0.0.1', port);
});
/////////////////////////////////////////////
// expect data == null
console.log(data);
/////////////////////////////////////////////