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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __CGROUP_H__
#define __CGROUP_H__
#include <linux/compiler.h>
#include <linux/refcount.h>
#include <linux/rbtree.h>
#include "util/env.h"
struct option;
struct cgroup {
struct rb_node node;
u64 id;
char *name;
int fd;
refcount_t refcnt;
};
extern int nr_cgroups; /* number of explicit cgroups defined */
struct cgroup *cgroup__get(struct cgroup *cgroup);
void cgroup__put(struct cgroup *cgroup);
struct evlist;
struct rblist;
struct cgroup *evlist__findnew_cgroup(struct evlist *evlist, const char *name);
int evlist__expand_cgroup(struct evlist *evlist, const char *cgroups,
struct rblist *metric_events, bool open_cgroup);
void evlist__set_default_cgroup(struct evlist *evlist, struct cgroup *cgroup);
int parse_cgroups(const struct option *opt, const char *str, int unset);
struct cgroup *cgroup__findnew(struct perf_env *env, uint64_t id,
const char *path);
struct cgroup *cgroup__find(struct perf_env *env, uint64_t id);
void perf_env__purge_cgroups(struct perf_env *env);
#ifdef HAVE_FILE_HANDLE
int read_cgroup_id(struct cgroup *cgrp);
#else
static inline int read_cgroup_id(struct cgroup *cgrp __maybe_unused)
{
return -1;
}
#endif /* HAVE_FILE_HANDLE */
#endif /* __CGROUP_H__ */
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