Hello,
see my questions inline...
Dhaval Giani wrote:
> cgroup = cgroup_new_cgroup("a");
Can I assume that cgroup_list_controllers() with group '/' (or '.')
returns list of all controllers in the system? The code looks like it
could work...
And is there a way, how to say that two controllers are mounted to the
same mount point and therefore share groups?
> ret = cgroup_get_cgroup(cgroup);
>
> if (ret) {
> printf("get cgroup failed with %s\n", cgroup_strerror(ret));
> return 0;
> }
>
> ret = cgroup_list_controllers(cgroup, NULL);
> size = ret;
Umm... returning both size and error code is *very* ugly, especially if
both are positive integers.
> list = calloc(ret, sizeof(char *));
>
> ret = cgroup_list_controllers(cgroup, list);
>
> printf("Listing all controllers\n");
>
> for (i = 0; i < size; i++)
> printf("%s\n", list[i]);
>
> for (i = 0; i < size; i++) {
> free(list[i]);
> list[i] = NULL;
> }
>
> ret = cgroup_list_controller_files(cgroup, "cpu", NULL);
Again returning both size and error code.
> if (ret == ECGCONTROLLERNOTFOUND) {
> printf("Controller not found\n");
> return 0;
> }
>
> len = ret;
> list = calloc(ret, sizeof(char *));
>
> ret = cgroup_list_controller_files(cgroup, "cpu", list);
>
> printf("Listing all the files for the CPU controller\n");
> for (i = 0; i < len; i++)
> printf("%s\n", list[i]);
I think free(list); is missing here. The libcgroup won't free it for me,
right?
Jan
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