site_def.h

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/* Copyright (c) 2015, 2024, Oracle and/or its affiliates.
 
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   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.
 
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   the program or referenced in the documentation.
 
   This program 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 General Public License, version 2.0, for more details.
 
   You should have received a copy of the GNU General Public License
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
 
#ifndef SITE_DEF_H
#define SITE_DEF_H
 
#include "xcom/node_no.h"
#include "xcom/site_struct.h"
 
site_def *new_site_def();
site_def *clone_site_def(site_def const *site);
void init_site_def(u_int n, node_address *names, site_def *site);
void add_site_def(u_int n, node_address *names, site_def *nodes);
void remove_site_def(u_int n, node_address *names, site_def *nodes);
char *dbg_site_def(site_def const *site);
void init_site_vars();
void free_site_def_body(site_def *s);
void free_site_def(site_def *s);
void free_site_defs();
site_def *push_site_def(site_def *s);
site_def const *find_prev_site_def(synode_no synode);
void garbage_collect_site_defs(synode_no x);
site_def const *get_site_def();
site_def *get_site_def_rw();
site_def const *get_prev_site_def();
uint32_t get_group_id(site_def const *site);
static uint32_t const null_id = 0;
node_no get_maxnodes(site_def const *site);
node_no get_nodeno(site_def const *site);
node_no find_nodeno(site_def const *site, const char *name);
node_no get_prev_nodeno();
site_def const *find_site_def(synode_no synode);
site_def *find_site_def_rw(synode_no synode);
site_def const *find_next_site_def(synode_no synode);
node_set detector_node_set(site_def const *site);
int enough_live_nodes(site_def *site);
void import_config(gcs_snapshot *gcs_snap);
gcs_snapshot *export_config();
void get_all_site_defs(site_def ***s, uint32_t *n);
synode_no get_min_delivered_msg(site_def const *s);
void update_delivered(site_def *s, node_no node, synode_no msgno);
synode_no config_max_boot_key(gcs_snapshot const *gcs_snap);
leader_array alloc_leader_array(u_int n);
leader_array clone_leader_array(leader_array const x);
synode_no get_highest_boot_key(gcs_snapshot *gcs_snap);
synode_no get_lowest_boot_key(gcs_snapshot *gcs_snap);
 
static inline bool_t node_no_exists(node_no n, site_def const *site) {
  return n < get_maxnodes(site);
}
 
static inline bool_t is_local_node(node_no n, site_def const *site) {
  return node_no_exists(n, site) && n == get_nodeno(site);
}
 
/**
  Finds pointer to server given site and node number.
  @param[in]     s    Pointer to site definition
  @param[in]     i    Node number
 
  @retval Pointer to server if success
  @retval 0 if failure
*/
static inline server *get_server(site_def const *s, node_no i) {
  if (s && i != VOID_NODE_NO && i < s->nodes.node_list_len)
    return s->servers[i];
  else
    return nullptr;
}
 
#endif