+int utils_create_pid_file(pid_t pid, const char *filepath);
+int utils_mkdir_recursive(const char *path, mode_t mode);
+int utils_create_stream_file(char *path_name, char *file_name, uint64_t size,
+ uint64_t count, int uid, int gid);
+int utils_rotate_stream_file(char *path_name, char *file_name, uint64_t size,
+ uint64_t count, int uid, int gid, int out_fd, uint64_t *new_count);
+int utils_parse_size_suffix(char *str, uint64_t *size);