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authorPaul Elder <paul.elder@ideasonboard.com>2020-06-22 18:42:07 +0900
committerPaul Elder <paul.elder@ideasonboard.com>2020-06-25 23:41:19 +0900
commitedacd07c5e9a5080628e7cc4d057674f7f742ead (patch)
treedc9b1f11d0d0758e4622364f6353b4cda7627ee8 /Documentation
parentd37ec82515fda4ae014d904e6d50cd0ed0ada850 (diff)
v4l2: V4L2CameraProxy: Take V4L2CameraFile as argument for intercepted calls
Prepare for using the V4L2CameraFile as a container for file-specific information in the V4L2 compatibility layer by making it a required argument for all V4L2CameraProxy calls that are directed from V4L2CompatManager, which are intercepted via LD_PRELOAD. Change V4L2CameraFile accordingly. Also change V4L2CompatManager accordingly. Instead of keeping a map of file descriptors to V4L2CameraProxy instances, we keep a map of V4L2CameraFile instances to V4L2CameraProxy instances. When the proxy methods are called, feed the file as a parameter. The dup function is also modified, in that it is removed from V4L2CameraProxy, and is handled completely in V4L2CompatManager, as a map from file descriptors to V4L2CameraFile instances. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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