public static Task ConnectAsync(this Socket socket, IPEndPoint endPoint, int timeoutMSec = -1)
{
var tcs = new TaskCompletionSource <bool>();
var asyncResult = socket.BeginConnect(endPoint, ar =>
{
try
{
socket.EndConnect(ar);
tcs.TrySetResult(true);
}
catch (OperationCanceledException)
{
tcs.TrySetCanceled();
}
catch (Exception e)
{
tcs.TrySetException(e);
}
finally
{
if (timeoutMSec > 0)
{
TimeoutHandler.Unregister(tcs);
}
}
}, tcs);
RegisterForTimeout(tcs, timeoutMSec, socket, asyncResult);
return(tcs.Task);
}
