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);
23int get_cgroup1_hierarchy_id(const char *subsys_name);
24
25int join_cgroup(const char *relative_path);
26int join_root_cgroup(void);
27int join_parent_cgroup(const char *relative_path);
28
29int setup_cgroup_environment(void);
30void cleanup_cgroup_environment(void);
31
32/* cgroupv1 related */
33int set_classid(void);
34int join_classid(void);
35unsigned long long get_classid_cgroup_id(void);
36int open_classid(void);
37
38int setup_classid_environment(void);
39void cleanup_classid_environment(void);
40
41#endif /* __CGROUP_HELPERS_H */