Permalink
Fetching contributors…
Cannot retrieve contributors at this time
144 lines (127 sloc) 5.28 KB
/*
* dbutils.h
*
* Copyright (c) 2ndQuadrant, 2010-2017
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef _REPMGR_DBUTILS_H_
#define _REPMGR_DBUTILS_H_
#include "access/xlogdefs.h"
#include "pqexpbuffer.h"
#include "config.h"
#include "strutil.h"
typedef enum {
UNKNOWN = 0,
MASTER,
STANDBY,
WITNESS
} t_server_type;
/*
* Struct to store node information
*/
typedef struct s_node_info
{
int node_id;
int upstream_node_id;
t_server_type type;
char name[MAXLEN];
char conninfo_str[MAXLEN];
char slot_name[MAXLEN];
int priority;
bool active;
bool is_ready;
bool is_visible;
XLogRecPtr xlog_location;
} t_node_info;
#define T_NODE_INFO_INITIALIZER { \
NODE_NOT_FOUND, \
NO_UPSTREAM_NODE, \
UNKNOWN, \
"", \
"", \
"", \
DEFAULT_PRIORITY, \
true, \
false, \
false, \
InvalidXLogRecPtr \
}
/*
* Struct to store replication slot information
*/
typedef struct s_replication_slot
{
char slot_name[MAXLEN];
char slot_type[MAXLEN];
bool active;
} t_replication_slot;
extern char repmgr_schema[MAXLEN];
PGconn *_establish_db_connection(const char *conninfo,
const bool exit_on_error,
const bool log_notice,
const bool verbose_only);
PGconn *establish_db_connection(const char *conninfo,
const bool exit_on_error);
PGconn *establish_db_connection_quiet(const char *conninfo);
PGconn *test_db_connection(const char *conninfo);
PGconn *establish_db_connection_by_params(const char *keywords[],
const char *values[],
const bool exit_on_error);
bool begin_transaction(PGconn *conn);
bool commit_transaction(PGconn *conn);
bool rollback_transaction(PGconn *conn);
bool check_cluster_schema(PGconn *conn);
int is_standby(PGconn *conn);
bool is_pgup(PGconn *conn, int timeout);
int get_master_node_id(PGconn *conn, char *cluster);
int get_server_version(PGconn *conn, char *server_version);
bool get_cluster_size(PGconn *conn, char *size);
bool get_pg_setting(PGconn *conn, const char *setting, char *output);
int guc_set(PGconn *conn, const char *parameter, const char *op,
const char *value);
int guc_set_typed(PGconn *conn, const char *parameter, const char *op,
const char *value, const char *datatype);
bool get_conninfo_value(const char *conninfo, const char *keyword, char *output);
PGconn *get_upstream_connection(PGconn *standby_conn, char *cluster,
int node_id,
int *upstream_node_id_ptr,
char *upstream_conninfo_out);
PGconn *get_master_connection(PGconn *standby_conn, char *cluster,
int *master_id, char *master_conninfo_out);
int wait_connection_availability(PGconn *conn, long long timeout);
bool cancel_query(PGconn *conn, int timeout);
char *get_repmgr_schema(void);
char *get_repmgr_schema_quoted(PGconn *conn);
bool create_replication_slot(PGconn *conn, char *slot_name, int server_version_num, PQExpBufferData *error_msg);
int get_slot_record(PGconn *conn, char *slot_name, t_replication_slot *record);
bool drop_replication_slot(PGconn *conn, char *slot_name);
bool start_backup(PGconn *conn, char *first_wal_segment, bool fast_checkpoint, int server_version_num);
bool stop_backup(PGconn *conn, char *last_wal_segment, int server_version_num);
bool set_config(PGconn *conn, const char *config_param, const char *config_value);
bool set_config_bool(PGconn *conn, const char *config_param, bool state);
bool witness_copy_node_records(PGconn *masterconn, PGconn *witnessconn, char *cluster_name);
bool create_node_record(PGconn *conn, char *action, int node, char *type, int upstream_node, char *cluster_name, char *node_name, char *conninfo, int priority, char *slot_name, bool active);
bool delete_node_record(PGconn *conn, int node, char *action);
int get_node_record(PGconn *conn, char *cluster, int node_id, t_node_info *node_info);
int get_node_record_by_name(PGconn *conn, char *cluster, const char *node_name, t_node_info *node_info);
bool update_node_record(PGconn *conn, char *action, int node, char *type, int upstream_node, char *cluster_name, char *node_name, char *conninfo, int priority, char *slot_name, bool active);
bool update_node_record_status(PGconn *conn, char *cluster_name, int this_node_id, char *type, int upstream_node_id, bool active);
bool update_node_record_set_upstream(PGconn *conn, char *cluster_name, int this_node_id, int new_upstream_node_id);
bool create_event_record(PGconn *conn, t_configuration_options *options, int node_id, char *event, bool successful, char *details);
int get_node_replication_state(PGconn *conn, char *node_name, char *output);
t_server_type parse_node_type(const char *type);
int get_data_checksum_version(const char *data_directory);
#endif