-def get_cgroup_path(name):
- """ Returns the base path for the cgroup with a specific name """
- assert CGROUPS.has_key(name), \
- "No sliver %s managed by libvirt through cgroup!" % name
- return CGROUPS[name]
+def get_cgroup_paths(subsystem="cpuset"):
+ cpusetBases = [
+ # observed on f16-f18
+ os.path.join(BASE_DIR, subsystem, 'libvirt', 'lxc'),
+ # as observed on f20
+ os.path.join(BASE_DIR, subsystem ),
+ ]
+ # try several locations and return all the results
+ # get_cgroup_path will sort it out
+ def merge(l1,l2): return l1+l2
+ return reduce (lambda l1,l2: l1+l2,
+ [ [ dir for dir in
+ [ os.path.join(cpusetBase, f) for f in os.listdir(cpusetBase) ]
+ if os.path.isdir(dir) ]
+ for cpusetBase in cpusetBases if os.path.isdir (cpusetBase) ])
+
+def get_cgroup_path(name, subsystem="cpuset"):
+ """ Returns the base path for the cgroup with a specific name or None."""
+ return reduce(lambda a, b: b if os.path.basename(b) == name else a,
+ get_cgroup_paths(subsystem), None)