protected virtual void OnConnectionChangeEvent(ConnectionChangeEventArgs args)
{
if (ConnectionChange != null)
{
ConnectionChange.Invoke(this, args);
}
}
public async Task Connect(string address)
{
this.address = address;
try
{
if (ready)
{
ConnectionChange.Invoke(this, false);
}
ready = false;
tcpClient = new TcpClient();
Console.WriteLine($"JVC\t\tConnecting to {address}");
await tcpClient.ConnectAsync(address, 20554);
Console.WriteLine($"JVC\t\tConnected to {address}");
stream = tcpClient.GetStream();
var readPackets = Task.Run(async() => await ReadPackets()); //run in background
var updateStatus = Task.Run(async() => await UpdateStatus()); //run in background
await Task.WhenAll(new Task[] { readPackets, updateStatus });
}
catch (IOException e)
{
Console.WriteLine($"JVC\t\tException when reading from socket: {e}");
}
catch (SocketException e)
{
Console.WriteLine($"JVC\t\tException when connecting to socket: {e}");
await Task.Delay(30000);
await Connect(address);
}
}
internal void Disconnect(string message)
{
lock (_lock)
{
if (IsConnected)
{
ConnectionTime = null;
DisconnectionTime = DateTime.Now;
ConnectionChange?.Invoke(this, new ConnectionChangeEventArgs(IsConnected, message));
}
}
}
private static void OnConnectionChange(bool flag)
{
ConnectionChange?.Invoke(flag);
}
private async Task ReadPackets()
{
try
{
byte[] buffer = new byte[1024];
int count = 0;
while (true)
{
int rc = await stream.ReadAsync(buffer, count, 1024 - count);
if (rc == 0)
{
throw new IOException("Disconnected from projector");
}
count += rc;
while (count > 0)
{
if (count >= 5 && System.Text.Encoding.ASCII.GetString(buffer, 0, 5) == "PJ_OK")
{
await stream.WriteAsync(System.Text.Encoding.ASCII.GetBytes("PJREQ"));
count -= 5;
if (count > 0)
{
Buffer.BlockCopy(buffer, 5, buffer, 0, count);
}
continue;
}
if (count >= 5 && System.Text.Encoding.ASCII.GetString(buffer, 0, 5) == "PJACK")
{
//hands have been shaked
ready = true;
ConnectionChange.Invoke(this, true);
count -= 5;
if (count > 0)
{
Buffer.BlockCopy(buffer, 5, buffer, 0, count);
}
continue;
}
if (count >= 5 && System.Text.Encoding.ASCII.GetString(buffer, 0, 5) == "PJ_NG")
{
//no udea
count -= 5;
if (count > 0)
{
Buffer.BlockCopy(buffer, 5, buffer, 0, count);
}
continue;
}
// ♠ ë P W ◙ @ ë ☺ P W 0 ◙
//status reply: 06 89 01 50 57 0a 40 89 01 50 57 30 0a
if (count >= 6 &&
buffer[0] == 0x06 &&
buffer[1] == 0x89 &&
buffer[2] == 0x01 &&
buffer[3] == 0x50 &&
buffer[4] == 0x57 &&
buffer[5] == 0x0a
)
{
count -= 6;
if (count > 0)
{
Buffer.BlockCopy(buffer, 6, buffer, 0, count);
}
continue;
}
if (count >= 7 &&
buffer[0] == 0x40 &&
buffer[1] == 0x89 &&
buffer[2] == 0x01 &&
buffer[3] == 0x50 &&
buffer[4] == 0x57 &&
buffer[6] == 0x0a
)
{
PowerStatus newStatus = PowerStatus.emergency;
switch (buffer[5])
{
case 0x30: newStatus = PowerStatus.standby; break;
case 0x31: newStatus = PowerStatus.poweron; break;
case 0x32: newStatus = PowerStatus.cooling; break;
case 0x34: newStatus = PowerStatus.emergency; break;
}
if (newStatus != _status)
{
StatusChange?.Invoke(this, newStatus);
_status = newStatus;
}
count -= 7;
if (count > 0)
{
Buffer.BlockCopy(buffer, 7, buffer, 0, count);
}
continue;
}
break;
}
if (count > 0)
{
throw new IOException("Protocol error, unknown command");
}
}
}
catch (IOException e)
{
Console.WriteLine($"ONKYO\tException when reading from socket: {e}");
}
finally
{
await Task.Delay(1000);
await Connect(address);
}
}
public ConnectionChangeEvent(string socketId, ConnectionChange change)
{
SocketId = socketId;
Change = change;
}
