[Libcdio-devel] [PATCH] Multiprocess compatible get_media_changed_linux using the new CDROM_TIMED_MEDIA_CHANGED ioctl

[Lukas Prediger]

Here's a patch that I posted also to savannah.gnu.org a couple of days 
ago. However, I'm not sure if that is currently actively checked, so I 
wanted to take the opportunity of posting to this mailing list as well:

Previously get_media_changed under linux only indicated a media change 
for one of all concurrently requesting processes due to a shortcoming of 
the kernels CDROM_MEDIA_CHANGED ioctl request.

The new CDROM_TIMED_MEDIA_CHANGE ioctl introduced with Linux v5.16
now allows media change detection to work robustly for multiple processes.
This patch adapts libcdio to use this new ioctl request if compiled
against kernel v5.16 or newer. It retains the old behavior for older
kernels.

Link to the patch posting on savannah.gnu.org:
https://savannah.gnu.org/patch/index.php?10169

Best,
Lukas

0001-Multiprocess-robust-cd-change-detection.patch
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