Hello,
the tool which do this functionality it is lssubsys:

$ lssubsys cpuacct -m
cpu,cpuacct /sys/fs/cgroup/cpu,cpuacct

api which can be used for this purpose is: 
cgroup_get_controller_(begin/next/end)

int     cgroup_get_controller_begin (void **handle, struct cgroup_mount_point 
*info)
Read the mount table to give a list where each controller is mounted.
int     cgroup_get_controller_next (void **handle, struct cgroup_mount_point 
*info)
Read the next mounted controller.
int     cgroup_get_controller_end (void **handle)
Release the iterator. 

Ivana Hutarova Varekova


----- Original Message -----
> From: "Kevin Wilson" <wkev...@gmail.com>
> To: libcg-devel@lists.sourceforge.net
> Sent: Friday, April 12, 2013 9:11:14 PM
> Subject: [Libcg-devel] question: getting the cgroups for a specified  
> subsystem with libcg
> 
> Hello,
> Is there a way to get the cgroups name (or full path) for a  a
> specified subsystem with libcg/libccg-tools ?
> 
> What I mean is:
> by cat /proc/cgroups I see, for example, that for cpuacct the num of
> cgroups (num_cgroups) is 36, and for perf_event it is 9.
> Can I know the name/path  of cgroups for cpuacct? or for perf_event,
> for example?
> 
> regards,
> Kevin
> 
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