1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __CGROUP_HELPERS_H
3#define __CGROUP_HELPERS_H
4
5#include <errno.h>
6#include <string.h>
7
8#define clean_errno() (errno == 0 ? "None" : strerror(errno))
9#define log_err(MSG, ...) fprintf(stderr, "(%s:%d: errno: %s) " MSG "\n", \
10	__FILE__, __LINE__, clean_errno(), ##__VA_ARGS__)
11
12/* cgroupv2 related */
13int enable_controllers(const char *relative_path, const char *controllers);
14int write_cgroup_file(const char *relative_path, const char *file,
15		      const char *buf);
16int write_cgroup_file_parent(const char *relative_path, const char *file,
17			     const char *buf);
18int cgroup_setup_and_join(const char *relative_path);
19int get_root_cgroup(void);
20int create_and_get_cgroup(const char *relative_path);
21void remove_cgroup(const char *relative_path);
22unsigned long long get_cgroup_id(const char *relative_path);
23
24int join_cgroup(const char *relative_path);
25int join_root_cgroup(void);
26int join_parent_cgroup(const char *relative_path);
27
28int setup_cgroup_environment(void);
29void cleanup_cgroup_environment(void);
30
31/* cgroupv1 related */
32int set_classid(unsigned int id);
33int join_classid(void);
34
35int setup_classid_environment(void);
36void cleanup_classid_environment(void);
37
38#endif /* __CGROUP_HELPERS_H */
39