The automatic classification engine (cgexec, cgclassify, pam_cgroup)

classify tasks. It is useful for an application to know where it has
been classified. I propose to add a new API
cgroup_get_current_controller_path() that returns the current
classification directory for the specified controller. One can easily
add on and build new API that will return paths of all mounted
controllers, but I want to start with something simple and useful.

I've also added a bunch of test cases for the same purpose.

Test output

# ./pathtest.sh
Test FAIL, get path failed for controller cpuset
Test PASS, controller cpu path /default
Test PASS, controller cpuacct path /default
Test PASS, controller memory path /default
Test FAIL, get path failed for controller memrlimit

I mounted just cpu, cpuacct and memory, thus the path for cpuset and
memrlimit could not be found (as expected).

Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Reviewed-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>


git-svn-id: https://libcg.svn.sourceforge.net/svnroot/libcg/trunk@200 4f4bb910-9a46-0410-90c8-c897d4f1cd53

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/pathtest.sh b/tests/pathtest.sh
new file mode 100755
index 0000000..b373389
--- /dev/null
+++ b/tests/pathtest.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+while read name extra
+do
+	echo $name | grep -q '^#'
+	if [ $? -eq 0 ]
+	then
+		continue
+	fi
+	path=`cat /proc/$$/cgroup | cut -d ':' -f 3`
+	./pathtest $name $path
+done < /proc/cgroups