src/lxc/monitor.h

   1 /*
   2  * lxc: linux Container library
   3  *
   4  * (C) Copyright IBM Corp. 2007, 2008
   5  *
   6  * Authors:
   7  * Daniel Lezcano <daniel.lezcano at free.fr>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23 #ifndef __LXC_MONITOR_H
  24 #define __LXC_MONITOR_H
  25
  26 #include <limits.h>
  27 #include <sys/param.h>
  28 #include <sys/un.h>
  29
  30 #include "conf.h"
  31
  32 typedef enum {
  33         lxc_msg_state,
  34         lxc_msg_priority,
  35         lxc_msg_exit_code,
  36 } lxc_msg_type_t;
  37
  38 struct lxc_msg {
  39         lxc_msg_type_t type;
  40         char name[NAME_MAX+1];
  41         int value;
  42 };
  43
  44 extern int lxc_monitor_open(const char *lxcpath);
  45 extern int lxc_monitor_sock_name(const char *lxcpath, struct sockaddr_un *addr);
  46 extern int lxc_monitor_fifo_name(const char *lxcpath, char *fifo_path,
  47                                  size_t fifo_path_sz, int do_mkdirp);
  48 extern void lxc_monitor_send_state(const char *name, lxc_state_t state,
  49                             const char *lxcpath);
  50 extern void lxc_monitor_send_exit_code(const char *name, int exit_code,
  51                             const char *lxcpath);
  52 extern int lxc_monitord_spawn(const char *lxcpath);
  53
  54 #endif