/***
  This file is part of eudev, forked from systemd.

  Copyright 2010 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#pragma once

#include <sys/types.h>
#include <stdio.h>
#include <dirent.h>

#include "set.h"
#include "def.h"

/*
 * General rules:
 *
 * We accept named hierarchies in the syntax "foo" and "name=foo".
 *
 * We expect that named hierarchies do not conflict in name with a
 * kernel hierarchy, modulo the "name=" prefix.
 *
 * We always generate "normalized" controller names, i.e. without the
 * "name=" prefix.
 *
 * We require absolute cgroup paths. When returning, we will always
 * generate paths with multiple adjacent / removed.
 */

int cg_enumerate_processes(const char *controller, const char *path, FILE **_f);
int cg_read_pid(FILE *f, pid_t *_pid);

int cg_kill(const char *controller, const char *path, int sig, bool sigcont, bool ignore_self, Set *s);

int cg_get_path(const char *controller, const char *path, const char *suffix, char **fs);

bool cg_controller_is_valid(const char *p, bool allow_named);