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114 lines
3.7 KiB
C
114 lines
3.7 KiB
C
/*
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* dbutils.h
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* Copyright (c) 2ndQuadrant, 2010-2015
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef _REPMGR_DBUTILS_H_
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#define _REPMGR_DBUTILS_H_
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#include "access/xlogdefs.h"
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#include "config.h"
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#include "strutil.h"
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typedef enum {
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UNKNOWN = 0,
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MASTER,
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STANDBY,
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WITNESS
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} t_server_type;
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/*
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* Struct to store node information
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*/
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typedef struct s_node_info
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{
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int node_id;
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int upstream_node_id;
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t_server_type type;
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char name[MAXLEN];
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char conninfo_str[MAXLEN];
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char slot_name[MAXLEN];
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int priority;
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bool active;
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bool is_ready;
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bool is_visible;
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XLogRecPtr xlog_location;
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} t_node_info;
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#define T_NODE_INFO_INITIALIZER { \
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NODE_NOT_FOUND, \
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NO_UPSTREAM_NODE, \
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UNKNOWN, \
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"", \
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"", \
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"", \
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DEFAULT_PRIORITY, \
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true, \
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false, \
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false, \
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InvalidXLogRecPtr \
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}
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PGconn *establish_db_connection(const char *conninfo,
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const bool exit_on_error);
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PGconn *establish_db_connection_by_params(const char *keywords[],
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const char *values[],
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const bool exit_on_error);
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bool begin_transaction(PGconn *conn);
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bool commit_transaction(PGconn *conn);
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bool rollback_transaction(PGconn *conn);
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bool check_cluster_schema(PGconn *conn);
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int is_standby(PGconn *conn);
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bool is_pgup(PGconn *conn, int timeout);
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int get_master_node_id(PGconn *conn, char *cluster);
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int get_server_version(PGconn *conn, char *server_version);
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bool get_cluster_size(PGconn *conn, char *size);
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bool get_pg_setting(PGconn *conn, const char *setting, char *output);
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int guc_set(PGconn *conn, const char *parameter, const char *op,
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const char *value);
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int guc_set_typed(PGconn *conn, const char *parameter, const char *op,
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const char *value, const char *datatype);
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PGconn *get_upstream_connection(PGconn *standby_conn, char *cluster,
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int node_id,
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int *upstream_node_id_ptr,
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char *upstream_conninfo_out);
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PGconn *get_master_connection(PGconn *standby_conn, char *cluster,
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int *master_id, char *master_conninfo_out);
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int wait_connection_availability(PGconn *conn, long long timeout);
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bool cancel_query(PGconn *conn, int timeout);
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char *get_repmgr_schema(void);
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char *get_repmgr_schema_quoted(PGconn *conn);
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bool create_replication_slot(PGconn *conn, char *slot_name);
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bool start_backup(PGconn *conn, char *first_wal_segment, bool fast_checkpoint);
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bool stop_backup(PGconn *conn, char *last_wal_segment);
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bool set_config_bool(PGconn *conn, const char *config_param, bool state);
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bool copy_configuration(PGconn *masterconn, PGconn *witnessconn, char *cluster_name);
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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);
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bool delete_node_record(PGconn *conn, int node, char *action);
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bool create_event_record(PGconn *conn, t_configuration_options *options, int node_id, char *event, bool successful, char *details);
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bool update_node_record_set_upstream(PGconn *conn, char *cluster_name, int this_node_id, int new_upstream_node_id);
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PGresult * get_node_record(PGconn *conn, char *cluster, int node_id);
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#endif
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