int rmdir_parents(const char *path, const char *stop);
-char get_process_state(pid_t pid);
+int get_process_state(pid_t pid);
int get_process_comm(pid_t pid, char **name);
int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line);
int get_process_exe(pid_t pid, char **name);