CreateCgroups mounts the v1 cgroup controllers hierarchy in /sys/fs/cgroup under root.

GetCgroupPathByPid returns the cgroup path of the process with the given pid and given controller.

GetControllerDirs takes a map with the enabled cgroup controllers grouped by hierarchy and returns the directory names as they should be in /sys/fs/cgroup.

GetEnabledCgroups returns a map with the enabled cgroup controllers grouped by hierarchy.

GetOwnCgroupPath returns the cgroup path of this process in controller hierarchy.

IsControllerMounted returns whether a controller is mounted by checking that cgroup.procs is accessible.

JoinSubcgroup makes the calling process join the subcgroup hierarchy on a particular controller.

RemountCgroups remounts the v1 cgroup hierarchy under root.