external/gpl2/lvm2/dist/daemons/cmirrord/cluster.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
   5  *
   6  * This copyrighted material is made available to anyone wishing to use,
   7  * modify, copy, or redistribute it subject to the terms and conditions
   8  * of the GNU Lesser General Public License v.2.1.
   9  *
  10  * You should have received a copy of the GNU Lesser General Public License
  11  * along with this program; if not, write to the Free Software Foundation,
  12  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  13  */
  14 #ifndef __CLUSTER_LOG_CLUSTER_DOT_H__
  15 #define __CLUSTER_LOG_CLUSTER_DOT_H__
  16
  17 #include "libdevmapper.h"
  18 #include "dm-log-userspace.h"
  19
  20 /*
  21  * There is other information in addition to what can
  22  * be found in the dm_ulog_request structure that we
  23  * need for processing.  'clog_request' is the wrapping
  24  * structure we use to make the additional fields
  25  * available.
  26  */
  27 struct clog_request {
  28         struct dm_list list;
  29
  30         /*
  31          * 'originator' is the machine from which the requests
  32          * was made.
  33          */
  34         uint32_t originator;
  35
  36         /*
  37          * 'pit_server' is the "point-in-time" server for the
  38          * request.  (I.e.  The machine that was the server at
  39          * the time the request was issued - only important during
  40          * startup.
  41          */
  42         uint32_t pit_server;
  43
  44         /*
  45          * The request from the kernel that is being processed
  46          */
  47         struct dm_ulog_request u_rq;
  48 };
  49
  50 int init_cluster(void);
  51 void cleanup_cluster(void);
  52 void cluster_debug(void);
  53
  54 int create_cluster_cpg(char *uuid, uint64_t luid);
  55 int destroy_cluster_cpg(char *uuid);
  56
  57 int cluster_send(struct clog_request *rq);
  58
  59 #endif /* __CLUSTER_LOG_CLUSTER_DOT_H__ */