client.connect(host, function() {
///////////////////////////////////////////////////////////////////////
// Handler for connected device
///////////////////////////////////////////////////////////////////////
out("CONNECTED", "device", device);
var nbSent = 0;
var nbReceived = 0;
if (!checkInstance(host, ref)) return;
// create various namespace handlers
var connection = client.createChannel('sender-0', 'receiver-0', 'urn:x-cast:com.google.cast.tp.connection', 'JSON');
var heartbeat = client.createChannel('sender-0', 'receiver-0', 'urn:x-cast:com.google.cast.tp.heartbeat', 'JSON');
var receiver = client.createChannel('sender-0', 'receiver-0', 'urn:x-cast:com.google.cast.receiver', 'JSON');
// establish virtual connection to the receiver
connection.send({ type: 'CONNECT' });
// start heartbeating
var iid = setInterval(function() {
// remove non-responding
if (nbSent>8 && nbSent/2>nbReceived)
removeInstance(host, ref);
if (!hasInstance(host, ref)) {
// dead or deleted instance
connection.close();
heartbeat.close();
receiver.close();
client.close();
clearInterval(iid);
}
else {
// ping
out("GET_STATUS", "get_status_request", {name:name, nbSent:nbSent, nbReceived:nbReceived});
++nbSent;
receiver.send({ "type": "GET_STATUS", "requestId": ++seq });
}
}, POLL_DELAY_MS);
// display receiver status updates
receiver.on('message', function(data, broadcast) {
if(data.type) {
++nbReceived;
var message = { "device": device, "type": data.type };
message[data.type.toLowerCase()] = data;
out("MESSAGE", "message", message);
}
});
// initial status
setTimeout(function() {
if (hasInstance(host, ref))
receiver.send({ "type": "GET_STATUS", "requestId": ++seq });
}, 2000);
});
var iid = setInterval(function() {
// remove non-responding
if (nbSent>8 && nbSent/2>nbReceived)
removeInstance(host, ref);
if (!hasInstance(host, ref)) {
// dead or deleted instance
connection.close();
heartbeat.close();
receiver.close();
client.close();
clearInterval(iid);
}
else {
// ping
out("GET_STATUS", "get_status_request", {name:name, nbSent:nbSent, nbReceived:nbReceived});
++nbSent;
receiver.send({ "type": "GET_STATUS", "requestId": ++seq });
}
}, POLL_DELAY_MS);