A `Process` object has address identity because a pointer to it is
stored inside the `ProcessManager`. However, copy/move special
methods are still generated by the compiler. So disable them to
avoid potential issues and confusion.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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