Naushir Patuck
f4839fb3a3
Add a new RequiresMmap flag to the RPi::Stream class indicating that buffers handled by the stream must be mmapped after allocation and cached internally. Add a new member function getBuffer(id) which can be used to obtain the mapped buffers for a given buffer id. Add a new member function acquireBuffer() which can be used to obtain any mapped buffer that has not already been acquired by the caller. As a drive-by, add the <algorithm> header to rpi_stream.cpp as it is needed for the std::find_if() function. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>