New creates a new FD.

NewFromFile creates a new FD from an os.File.

NewFromFiles creates new FDs for each file in the slice.

NewReadWriter creates a ReadWriter for fd.

Open is equivalent to open(2).

OpenAt is equivalent to openat(2).

FD owns a host file descriptor.

ReadWriter implements io.ReadWriter, io.ReaderAt, and io.WriterAt for fd.