public async Task SendAsync(byte[] buffer, int offset, int len, Action <int> callback)
{
if (secure)
{
SecureStream.Encrypt(buffer, offset, len);
}
int bytes = -1;
try
{
SocketAsyncEventArgs sockArgs;
if (!sendQueue.TryDequeue(out sockArgs))
{
sockArgs = new SocketAsyncEventArgs();
}
sockArgs.SetBuffer(buffer, offset, len);
sockArgs.Completed += SockArgsSend_Completed;
sockArgs.UserToken = callback;
if (!socket.SendAsync(sockArgs))
{
SockArgsSend_Completed(socket, sockArgs);
}
}
catch (ObjectDisposedException)
{
}
catch (SocketException ex)
{
Console.WriteLine("[WARN] SendAsync | SocketError=" + ex.SocketErrorCode);
}
}
private void SockArgsRecv_Completed(object sender, SocketAsyncEventArgs e)
{
var callback = e.UserToken as Func <int, Task>;
e.Completed -= SockArgsRecv_Completed;
if (e.LastOperation == SocketAsyncOperation.Receive)
{
recvQueue.Enqueue(e);
}
Console.WriteLine("{0} {1} <= {2} {3}", "RECV", this.LocalEndPoint.ToString().PadRight(22), this.RemoteEndPoint.ToString().PadRight(22), e.BytesTransferred);
if (secure && e.BytesTransferred > 0)
{
SecureStream.Decrypt(e.Buffer, 0, e.BytesTransferred);
}
callback(e.BytesTransferred).Wait();
}
private void SockArgsSend_Completed(object sender, SocketAsyncEventArgs e)
{
var callback = e.UserToken as Action <int>;
e.Completed -= SockArgsSend_Completed;
if (e.LastOperation == SocketAsyncOperation.Send)
{
sendQueue.Enqueue(e);
}
Console.WriteLine("{0} {1} => {2} {3}", "SEND", this.LocalEndPoint.ToString().PadRight(22), this.RemoteEndPoint.ToString().PadRight(22), e.BytesTransferred);
if (secure && e.BytesTransferred > 0)
{
SecureStream.Decrypt(e.Buffer, 0, e.BytesTransferred);
}
callback(e.BytesTransferred);
}
