CqlSharp.Protocol.FrameReader.ReadAsync C# (CSharp) Method

        private async Task<int> ReadAsync(byte[] buffer, int offset, int count)
        {
            try
            {
                //return 0 if window size has been reached
                if(_unreadFromStream <= 0)
                    return 0;

                //get max amount of data to read
                int max = Math.Min(count, _unreadFromStream);

                //read
                int read;
                if(Scheduler.RunningSynchronously)
                    read = _innerStream.Read(buffer, offset, max);
                else
                    read = await _innerStream.ReadAsync(buffer, offset, max).AutoConfigureAwait();

                //update remaining
                _unreadFromStream -= read;

                //signal EOS when window reached
                if(_unreadFromStream <= 0)
                {
                    Scheduler.RunOnIOThread(() => _waitUntilAllFrameDataRead.TrySetResult(true));
                    //_waitUntilAllFrameDataRead.TrySetResult(true);
                }

                //return actual read count
                return read;
            }
            catch(Exception ex)
            {
                //error no more to read
                _unreadFromStream = 0;

                //signal error as EOS
                Scheduler.RunOnIOThread(() => _waitUntilAllFrameDataRead.SetException(ex));
                //_waitUntilAllFrameDataRead.SetException(ex);

                //rethrow
                throw;
            }
        }