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 */ 42