public static SocketAwaitable ReceiveAsync(this Socket socket, SocketAwaitable awaitable)
{
awaitable.Reset();
if (!socket.ReceiveAsync(awaitable.m_eventArgs))
{
awaitable.m_wasCompleted = true;
}
return(awaitable);
}
async Task ReadAsync(Socket s)
{
// Reusable SocketAsyncEventArgs and awaitable wrapper
var args = new SocketAsyncEventArgs();
args.SetBuffer(new byte[0x100000], 0, 0x100000);
var awaitable = new SocketAwaitable(args);
while (_isInit)
{
await s.ReceiveAsync(awaitable);
int bytesRead = args.BytesTransferred;
if (bytesRead <= 0)
{
throw new Exception("Raw socket is disconnected");
}
IPv4Packet ipPacket;
try
{
ipPacket = new IPv4Packet(new ByteArraySegment(args.Buffer, 0, bytesRead));
}
catch (InvalidOperationException)
{
continue;
}
if (ipPacket.Version != IpVersion.IPv4 || ipPacket.Protocol != IPProtocolType.TCP)
{
continue;
}
OnPacketReceived(ipPacket);
}
_socket.Close();
_socket = null;
}