1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __CGROUP_H__
3 #define __CGROUP_H__
4 
5 #include <linux/refcount.h>
6 #include <linux/rbtree.h>
7 #include "util/env.h"
8 
9 struct option;
10 
11 struct cgroup {
12 	struct rb_node		node;
13 	u64			id;
14 	char			*name;
15 	int			fd;
16 	refcount_t		refcnt;
17 };
18 
19 extern int nr_cgroups; /* number of explicit cgroups defined */
20 
21 struct cgroup *cgroup__get(struct cgroup *cgroup);
22 void cgroup__put(struct cgroup *cgroup);
23 
24 struct evlist;
25 struct rblist;
26 
27 struct cgroup *evlist__findnew_cgroup(struct evlist *evlist, const char *name);
28 int evlist__expand_cgroup(struct evlist *evlist, const char *cgroups,
29 			  struct rblist *metric_events, bool open_cgroup);
30 
31 void evlist__set_default_cgroup(struct evlist *evlist, struct cgroup *cgroup);
32 
33 int parse_cgroups(const struct option *opt, const char *str, int unset);
34 
35 struct cgroup *cgroup__findnew(struct perf_env *env, uint64_t id,
36 			       const char *path);
37 struct cgroup *cgroup__find(struct perf_env *env, uint64_t id);
38 
39 void perf_env__purge_cgroups(struct perf_env *env);
40 
41 #endif /* __CGROUP_H__ */
42