ReadAsync() [2/3]

override Task< int > System.IO.FileStream.ReadAsync ( byte[] buffer, int offset, int count, CancellationToken cancellationToken )

inlinevirtual

Reimplemented from System.IO.Stream.

Reimplemented in System.IO.IsolatedStorage.IsolatedStorageFileStream, and System.Net.WebFileStream.

Definition at line 279 of file FileStream.cs.

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

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

Referenced by System.IO.IsolatedStorage.IsolatedStorageFileStream.ReadAsync(), and System.IO.IsolatedStorage.IsolatedStorageFileStream.ReadAsync().