ReadAsync() [3/3]

override ValueTask< int > System.IO.Strategies.Net5CompatFileStreamStrategy.ReadAsync ( Memory< byte > buffer, CancellationToken cancellationToken = default(CancellationToken) )

inlinevirtual

Reimplemented from System.IO.Stream.

Definition at line 341 of file Net5CompatFileStreamStrategy.cs.

    {
        if (!_useAsyncIO)
        {
            if (!MemoryMarshal.TryGetArray((ReadOnlyMemory<byte>)buffer, out ArraySegment<byte> segment))
            {
                return base.ReadAsync(buffer, cancellationToken);
            }
            return new ValueTask<int>(BeginReadInternal(segment.Array, segment.Offset, segment.Count, null, null, serializeAsynchronously: true, apm: false));
        }
        int synchronousResult;
        Task<int> task = ReadAsyncInternal(buffer, cancellationToken, out synchronousResult);
        if (task == null)
        {
            return new ValueTask<int>(synchronousResult);
        }
        return new ValueTask<int>(task);
    }

References System.IO.Strategies.Net5CompatFileStreamStrategy._useAsyncIO, System.IO.Stream.BeginReadInternal(), System.buffer, System.cancellationToken, System.IO.Strategies.Net5CompatFileStreamStrategy.ReadAsyncInternal(), and System.task.