private Task <int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken, object state)
{
ValidateState(cancellationToken);
var tcs = new TaskCompletionSource <int>(state);
var task = _body.ReadAsync(new ArraySegment <byte>(buffer, offset, count), cancellationToken);
task.AsTask().ContinueWith((task2, state2) =>
{
var tcs2 = (TaskCompletionSource <int>)state2;
if (task2.IsCanceled)
{
tcs2.SetCanceled();
}
else if (task2.IsFaulted)
{
tcs2.SetException(task2.Exception);
}
else
{
tcs2.SetResult(task2.Result);
}
}, tcs, cancellationToken);
return(tcs.Task);
}
public override Task <int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
var task = ValidateState(cancellationToken);
if (task == null)
{
return(_body.ReadAsync(new ArraySegment <byte>(buffer, offset, count), cancellationToken));
}
return(task);
}