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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-08-29 21:03:23 +0300
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2022-01-03 15:31:14 +0200
commitec6921d7f7ef70cd7c5ea3d7a20082d66b8aa6e5 (patch)
tree744fd998a9381101737bb1bd52cb2449e0f1448d /test/v4l2_compat
parent46b32fa0e48aed16778c6e8d324d65473fbd06b7 (diff)
libcamera: media_device: Move recursive lock handling to pipeline handler
The MediaDevice lock is meant to prevent concurrent usage of multiple cameras from the same pipeline handlers. As media devices are acquired by pipeline handlers, we can't have multiple pipeline handlers trying to lock the same media device. The recursive locking detection can thus be moved to the pipeline handler. This simplifies the media device implementation that now implements true lock semantics, and prepares for support of concurrent camera usage. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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