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// from https://blogs.msdn.microsoft.com/pfxteam/2011/12/15/awaiting-socket-operations/
		internal sealed class SocketAwaitable : INotifyCompletion
		{
			private readonly static Action _sentinel = () => { };

			internal bool _wasCompleted;
			internal Action _continuation;
			internal SocketAsyncEventArgs _eventArgs;

			public SocketAwaitable(SocketAsyncEventArgs eventArgs)
			{
				if (null==eventArgs) throw new ArgumentNullException("eventArgs");
				_eventArgs = eventArgs;
				eventArgs.Completed += delegate
				{
					var prev = _continuation ?? Interlocked.CompareExchange(
						ref _continuation, _sentinel, null);
					if (prev != null) prev();
				};
			}

			internal void Reset()
			{
				_wasCompleted = false;
				_continuation = null;
			}

			public SocketAwaitable GetAwaiter() { return this; }

			public bool IsCompleted { get { return _wasCompleted; } }

			public void OnCompleted(Action continuation)
			{
				if (_continuation == _sentinel ||
					Interlocked.CompareExchange(
						ref _continuation, continuation, null) == _sentinel)
				{
					Task.Run(continuation);
				}
			}

			public void GetResult()
			{
				if (_eventArgs.SocketError != SocketError.Success)
					throw new SocketException((int)_eventArgs.SocketError);
			}
		}

codewitch honey crisis wrote:

I want to build custom firmware for ECUs for engines.

M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.

Mycroft Holmes wrote:

the cost per month 22.66 AUD!

Mycroft Holmes wrote:

interesting to see if I got it wrong or they really are that expensive.