public static Payload makePayload()
{
Payload p = new Payload();
p.path = new List<String>();
p.payload = new Dictionary<String, Object>();
p.request = "";
p.sessionid = 0;
p.identity = 0;
p.sessionkey = "";
return p;
}
private bool StopTalking()
{
audioCaller.Close();
connector.ReceivedData -= CancelRequested;
//Stop recording
Payload p = new Payload();
p.request = "cancel";
p.sessionkey = client.SessionKey;
p.sessionid = client.SessionID;
p.path = ClassRequested.path.Concat(new String[] {"audio"}).ToList();
Random rnd = new Random();
p.identity = packetIdentity = rnd.Next(Int32.MaxValue);
ResponsePayload r = new ResponsePayload();
r.message = "Connection: timeout!";
Task k = Task.Factory.StartNew(() => { r = connector.SendAndReceive(p); });
k.Wait(5000);
if (r.status == "success")
{
return true;
}
else
{
client.currentError = r.message;
return false;
}
}
public bool CancelRequest()
{
if (CurrentAsk == null) return false;
CurrentAsk.stopListening();
CurrentAsk = null;
RaisePropertyChanged("CurrentAsk");
//Send request to remove from queue here!
Payload p = new Payload();
p.request = "cancel";
p.sessionkey = client.SessionKey;
p.sessionid = client.SessionID;
p.path = path.Concat(new String[] {"audio"}).ToList();
Random rnd = new Random();
p.identity = rnd.Next(Int32.MaxValue);
ResponsePayload r = new ResponsePayload();
r.message = "Connection: timeout!";
connector.Send (p);
return true;
}
//
//
//
public void SendBlock(Payload payload)
{
String s = JsonConvert.SerializeObject(payload);
byte[] sendbuf = Encoding.ASCII.GetBytes(s);
if (sendbuf.Length > 4096) throw new Exception("Packet size too large!");
Socket.Send(sendbuf, sendbuf.Length);
}
/* SendAndReceive(Payload p)
* Blocks until response is received
*
* Has timeout of 10 second for identity = 0
* Unlimited timeout for specific identity, please timeout the thread manually.
* */
public ResponsePayload SendAndReceive(Payload p)
{
if (p.identity != 0)
{
SendBlock(p);
while (responseWaiter == null || responseWaiter.identity != p.identity)
{
}
return responseWaiter;
}
else
{
SendBlock(p);
return waitForPayload();
}
}
/* SendAndForget neithers blocks the thread nor wait for response
* The client also timeouts in 3 seconds.*/
public void Send(Payload p)
{
Task tk = Task.Factory.StartNew(() =>
{
try
{
SendBlock(p);
}
catch
{
}
});
}