extern int linux_proc_pid_is_gone (pid_t pid);
-/* Return an opaque string identifying PID's NS namespace or NULL if
- * the information is unavailable. The returned string must be
- * released with xfree. */
-
-extern char *linux_proc_pid_get_ns (pid_t pid, const char *ns);
-
/* Callback function for linux_proc_attach_tgid_threads. If the PTID
thread is not yet known, try to attach to it and return true,
otherwise return false. */