tools/polldaemon.h

   1 /*
   2  * Copyright (C) 2003-2004 Sistina Software, Inc. All rights reserved.
   3  * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
   4  *
   5  * This file is part of LVM2.
   6  *
   7  * This copyrighted material is made available to anyone wishing to use,
   8  * modify, copy, or redistribute it subject to the terms and conditions
   9  * of the GNU Lesser General Public License v.2.1.
  10  *
  11  * You should have received a copy of the GNU Lesser General Public License
  12  * along with this program; if not, write to the Free Software Foundation,
  13  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  14  */
  15
  16 #ifndef _LVM_TOOL_POLLDAEMON_H
  17 #define _LVM_TOOL_POLLDAEMON_H
  18
  19 #include "metadata-exported.h"
  20
  21 typedef enum {
  22         PROGRESS_CHECK_FAILED = 0,
  23         PROGRESS_UNFINISHED = 1,
  24         PROGRESS_FINISHED_SEGMENT = 2,
  25         PROGRESS_FINISHED_ALL = 3
  26 } progress_t;
  27
  28 struct daemon_parms;
  29
  30 struct poll_functions {
  31         const char *(*get_copy_name_from_lv) (struct logical_volume *lv);
  32         struct volume_group *(*get_copy_vg) (struct cmd_context *cmd,
  33                                              const char *name,
  34                                              const char *uuid);
  35         struct logical_volume *(*get_copy_lv) (struct cmd_context *cmd,
  36                                                struct volume_group *vg,
  37                                                const char *name,
  38                                                const char *uuid,
  39                                                uint32_t lv_type);
  40         progress_t (*poll_progress)(struct cmd_context *cmd,
  41                                     struct logical_volume *lv,
  42                                     const char *name,
  43                                     struct daemon_parms *parms);
  44         int (*update_metadata) (struct cmd_context *cmd,
  45                                 struct volume_group *vg,
  46                                 struct logical_volume *lv,
  47                                 struct dm_list *lvs_changed, unsigned flags);
  48         int (*finish_copy) (struct cmd_context *cmd,
  49                             struct volume_group *vg,
  50                             struct logical_volume *lv,
  51                             struct dm_list *lvs_changed);
  52 };
  53
  54 struct daemon_parms {
  55         unsigned interval;
  56         unsigned wait_before_testing;
  57         unsigned aborting;
  58         unsigned background;
  59         unsigned outstanding_count;
  60         unsigned progress_display;
  61         const char *progress_title;
  62         uint32_t lv_type;
  63         struct poll_functions *poll_fns;
  64 };
  65
  66 int poll_daemon(struct cmd_context *cmd, const char *name, const char *uuid,
  67                 unsigned background,
  68                 uint32_t lv_type, struct poll_functions *poll_fns,
  69                 const char *progress_title);
  70
  71 progress_t poll_mirror_progress(struct cmd_context *cmd,
  72                                 struct logical_volume *lv, const char *name,
  73                                 struct daemon_parms *parms);
  74
  75 #endif