|  | /* SPDX-License-Identifier: GPL-2.0 */ | 
|  | #ifndef __CGROUP_HELPERS_H | 
|  | #define __CGROUP_HELPERS_H | 
|  | #include <errno.h> | 
|  | #include <string.h> | 
|  |  | 
|  | #define clean_errno() (errno == 0 ? "None" : strerror(errno)) | 
|  | #define log_err(MSG, ...) fprintf(stderr, "(%s:%d: errno: %s) " MSG "\n", \ | 
|  | __FILE__, __LINE__, clean_errno(), ##__VA_ARGS__) | 
|  |  | 
|  |  | 
|  | int cgroup_setup_and_join(const char *path); | 
|  | int create_and_get_cgroup(const char *path); | 
|  | int join_cgroup(const char *path); | 
|  | int setup_cgroup_environment(void); | 
|  | void cleanup_cgroup_environment(void); | 
|  | unsigned long long get_cgroup_id(const char *path); | 
|  |  | 
|  | #endif |