tools/testing/selftests/bpf/cgroup_helpers.h

   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 */
  13 int enable_controllers(const char *relative_path, const char *controllers);
  14 int write_cgroup_file(const char *relative_path, const char *file,
  15                       const char *buf);
  16 int write_cgroup_file_parent(const char *relative_path, const char *file,
  17                              const char *buf);
  18 int cgroup_setup_and_join(const char *relative_path);
  19 int get_root_cgroup(void);
  20 int create_and_get_cgroup(const char *relative_path);
  21 void remove_cgroup(const char *relative_path);
  22 unsigned long long get_cgroup_id(const char *relative_path);
  23 int get_cgroup1_hierarchy_id(const char *subsys_name);
  24
  25 int join_cgroup(const char *relative_path);
  26 int join_root_cgroup(void);
  27 int join_parent_cgroup(const char *relative_path);
  28
  29 int setup_cgroup_environment(void);
  30 void cleanup_cgroup_environment(void);
  31
  32 /* cgroupv1 related */
  33 int set_classid(void);
  34 int join_classid(void);
  35 unsigned long long get_classid_cgroup_id(void);
  36 int open_classid(void);
  37
  38 int setup_classid_environment(void);
  39 void cleanup_classid_environment(void);
  40
  41 #endif /* __CGROUP_HELPERS_H */