ReadAsync() [3/3]

override ValueTask< int > System.IO.FileStream.ReadAsync ( Memory< byte > buffer, CancellationToken cancellationToken = default(CancellationToken) )

inlinevirtualinherited

Reimplemented from System.IO.Stream.

Reimplemented in System.IO.IsolatedStorage.IsolatedStorageFileStream.

Definition at line 297 of file FileStream.cs.

    {
        if (cancellationToken.IsCancellationRequested)
        {
            return ValueTask.FromCanceled<int>(cancellationToken);
        }
        if (!_strategy.CanRead)
        {
            if (_strategy.IsClosed)
            {
                ThrowHelper.ThrowObjectDisposedException_FileClosed();
            }
            ThrowHelper.ThrowNotSupportedException_UnreadableStream();
        }
        return _strategy.ReadAsync(buffer, cancellationToken);
    }

References System.IO.FileStream._strategy, System.buffer, System.cancellationToken, System.IO.Stream.CanRead, System.Threading.Tasks.ValueTask< TResult >.FromCanceled(), System.IO.Strategies.FileStreamStrategy.IsClosed, System.IO.Stream.ReadAsync(), System.ThrowHelper.ThrowNotSupportedException_UnreadableStream(), and System.ThrowHelper.ThrowObjectDisposedException_FileClosed().