This is the only function that cgroup.h exports that is prefixed with cgroup_ where this does not refer to some type such as CGroupContext or CGroupTasksMax or so. It simply operates on a unit. And it doesn't even modify a cgroup, but just modifies an nft set. Hence, to make the naming scheme systematic, change prefix from cgroup_ to unit_, matching the majority of the functions that operate on Unit* in the file.
System and Service Manager
Details
Most documentation is available on systemd's web site.
Assorted, older, general information about systemd can be found in the systemd Wiki.
Information about build requirements is provided in the README file.
Consult our NEWS file for information about what's new in the most recent systemd versions.
Please see the Code Map for information about this repository's layout and content.
Please see the Hacking guide for information on how to hack on systemd and test your modifications.
Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.
When preparing patches for systemd, please follow our Coding Style Guidelines.
If you are looking for support, please contact our mailing list or join our IRC channel.
Stable branches with backported patches are available in the stable repo.