ctdb/server/ipalloc_private.h

   1 /*
   2    CTDB IP takeover code
   3
   4    Copyright (C) Ronnie Sahlberg  2007
   5    Copyright (C) Andrew Tridgell  2007
   6    Copyright (C) Martin Schwenke  2015
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #ifndef __CTDB_IPALLOC_PRIVATE_H__
  23 #define __CTDB_IPALLOC_PRIVATE_H__
  24
  25 #include "protocol/protocol.h"
  26
  27 #include "server/ipalloc.h"
  28
  29 struct ipalloc_state {
  30         uint32_t num;
  31
  32         /* Arrays with data for each node */
  33         struct ctdb_public_ip_list *available_public_ips;
  34         struct ctdb_public_ip_list *known_public_ips;
  35
  36         struct public_ip_list *all_ips;
  37         enum ipalloc_algorithm algorithm;
  38         bool no_ip_failback;
  39         bool no_ip_takeover;
  40         uint32_t *force_rebalance_nodes;
  41 };
  42
  43 bool can_node_takeover_ip(struct ipalloc_state *ipalloc_state,
  44                           int32_t pnn,
  45                           struct public_ip_list *ip);
  46 int node_ip_coverage(int32_t pnn, struct public_ip_list *ips);
  47 int find_takeover_node(struct ipalloc_state *ipalloc_state,
  48                        struct public_ip_list *ip);
  49
  50 void unassign_unsuitable_ips(struct ipalloc_state *ipalloc_state);
  51 void basic_allocate_unassigned(struct ipalloc_state *ipalloc_state);
  52
  53 bool ipalloc_nondeterministic(struct ipalloc_state *ipalloc_state);
  54 bool ipalloc_deterministic(struct ipalloc_state *ipalloc_state);
  55 bool ipalloc_lcp2(struct ipalloc_state *ipalloc_state);
  56
  57 #endif /* __CTDB_IPALLOC_PRIVATE_H__ */