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#include <stdio.h>
#include <libcgroup.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
/* Ugly, I know... */
#include "../src/tools/tools-common.h"
struct cgroup_group_spec *cgroup_list[CG_HIER_MAX];
int main(int argc, char **argv)
{
int ret;
int i, j;
char *parent;
char controllers[PATH_MAX];
struct cgroup *cgroup;
struct cgroup_controller *cgc;
ret = cgroup_init();
if (ret) {
fprintf(stderr, "cgroup_init failed with %s\n",
cgroup_strerror(ret));
exit(1);
}
if (argc < 2) {
fprintf(stderr, "at least one argument is expected\n");
printf("Usage: %s <controllers>:<group> ... \n",
argv[0]);
exit(1);
}
for (i = 1; i < argc; i++) {
ret = parse_cgroup_spec(cgroup_list, argv[i]);
if (ret) {
fprintf(stderr, "cannot parse %s\n", argv[i]);
exit(1);
}
}
for (i = 0; i < CG_HIER_MAX; i++) {
if (!cgroup_list[i])
break;
cgroup = cgroup_new_cgroup(cgroup_list[i]->path);
if (cgroup == NULL) {
fprintf(stderr, "cannot create new cgroup for %s\n",
argv[i]);
exit(1);
}
memset(controllers, 0, sizeof(controllers));
for (j = 0; j < CG_CONTROLLER_MAX; j++) {
if (cgroup_list[i]->controllers[j] == NULL)
break;
strncat(controllers, cgroup_list[i]->controllers[j],
sizeof(controllers) -
strlen(controllers));
strncat(controllers, ",", sizeof(controllers) -
strlen(controllers));
cgc = cgroup_add_controller(cgroup,
cgroup_list[i]->controllers[j]);
if (cgc == NULL) {
fprintf(stderr, "cannot add %s to %s\n",
cgroup_list[i]->path,
cgroup_list[i]->controllers[j]);
exit(1);
}
}
ret = cgroup_find_parent(cgroup, &parent);
printf("Parent of %s:%s is: %s (%d)\n", controllers,
cgroup_list[i]->path, parent, ret);
free(parent);
cgroup_free_group_spec(cgroup_list[i]);
cgroup_free(&cgroup);
}
return 0;
}
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