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repmgr-client-global.h
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repmgr-client-global.h
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/*
* repmgr-client-global.h
* Copyright (c) EnterpriseDB Corporation, 2010-2021
*
* 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_CLIENT_GLOBAL_H_
#define _REPMGR_CLIENT_GLOBAL_H_
#include "configfile.h"
/* values for --copy-external-config-files */
#define CONFIG_FILE_SAMEPATH 1
#define CONFIG_FILE_PGDATA 2
/* default value for "cluster event --limit"*/
#define CLUSTER_EVENT_LIMIT 20
typedef struct
{
/* configuration metadata */
bool conninfo_provided;
bool connection_param_provided;
bool host_param_provided;
bool limit_provided;
bool wait_provided;
/* general configuration options */
char config_file[MAXPGPATH];
bool dry_run;
bool force;
char pg_bindir[MAXLEN]; /* overrides setting in repmgr.conf */
int wait;
bool no_wait;
bool compact;
bool detail;
bool dump_config;
/* logging options */
char log_level[MAXLEN]; /* overrides setting in repmgr.conf */
bool log_to_file;
bool quiet;
bool terse;
bool verbose;
/* output options */
bool csv;
bool nagios;
bool optformat;
/* standard connection options */
char dbname[MAXLEN];
char host[MAXLEN];
char username[MAXLEN];
char port[MAXLEN];
/* other connection options */
char remote_user[MAXLEN];
char superuser[MAXLEN];
/* general node options */
int node_id;
char node_name[NAMEDATALEN];
char data_dir[MAXPGPATH];
int remote_node_id;
/* "standby clone" options */
bool copy_external_config_files;
int copy_external_config_files_destination;
bool fast_checkpoint;
bool rsync_only;
bool no_upstream_connection;
char recovery_min_apply_delay[MAXLEN]; /* overrides setting in repmgr.conf */
char replication_user[MAXLEN];
char upstream_conninfo[MAXLEN];
bool without_barman;
bool replication_conf_only;
bool verify_backup;
/* "standby clone"/"standby follow" options */
int upstream_node_id;
/* "standby register" options */
bool wait_register_sync;
int wait_register_sync_seconds;
int wait_start;
/* "standby switchover" options */
bool always_promote;
bool force_rewind_used;
char force_rewind_path[MAXPGPATH];
bool siblings_follow;
bool repmgrd_no_pause;
bool repmgrd_force_unpause;
/* "node status" options */
bool is_shutdown_cleanly;
/* "node check" options */
bool archive_ready;
bool downstream;
bool upstream;
bool replication_lag;
bool role;
bool slots;
bool missing_slots;
bool has_passfile;
bool replication_connection;
bool repmgrd;
bool data_directory_config;
bool replication_config_owner;
bool db_connection;
/* "node rejoin" options */
char config_files[MAXLEN];
/* "node service" options */
char action[MAXLEN];
bool check;
bool list_actions;
bool checkpoint;
/* "cluster event" options */
bool all;
char event[MAXLEN];
int limit;
/* "cluster cleanup" options */
int keep_history;
/* following options for internal use */
char config_archive_dir[MAXPGPATH];
OutputMode output_mode; /* set through provision of --csv, --nagios or --optformat */
bool disable_wal_receiver;
bool enable_wal_receiver;
} t_runtime_options;
#define T_RUNTIME_OPTIONS_INITIALIZER { \
/* configuration metadata */ \
false, false, false, false, false, \
/* general configuration options */ \
"", false, false, "", -1, false, false, false, false, \
/* logging options */ \
"", false, false, false, false, \
/* output options */ \
false, false, false, \
/* database connection options */ \
"", "", "", "", \
/* other connection options */ \
"", "", \
/* general node options */ \
UNKNOWN_NODE_ID, "", "", UNKNOWN_NODE_ID, \
/* "standby clone" options */ \
false, CONFIG_FILE_SAMEPATH, false, false, false, "", "", "", \
false, false, false, \
/* "standby clone"/"standby follow" options */ \
NO_UPSTREAM_NODE, \
/* "standby register" options */ \
false, -1, DEFAULT_WAIT_START, \
/* "standby switchover" options */ \
false, false, "", false, false, false, \
/* "node status" options */ \
false, \
/* "node check" options */ \
false, false, false, false, false, false, false, false, false, false, false, false, false, \
/* "node rejoin" options */ \
"", \
/* "node service" options */ \
"", false, false, false, \
/* "cluster event" options */ \
false, "", CLUSTER_EVENT_LIMIT, \
/* "cluster cleanup" options */ \
0, \
/* following options for internal use */ \
"/tmp", OM_TEXT, false, false \
}
typedef enum
{
barman,
pg_basebackup
} standy_clone_mode;
typedef enum
{
ACTION_UNKNOWN = -1,
ACTION_NONE,
ACTION_START,
ACTION_STOP,
ACTION_STOP_WAIT,
ACTION_RESTART,
ACTION_RELOAD,
ACTION_PROMOTE
} t_server_action;
typedef enum
{
USER_TYPE_UNKNOWN = -1,
REPMGR_USER,
REPLICATION_USER_OPT,
REPLICATION_USER_NODE,
SUPERUSER
} t_user_type;
typedef enum
{
JOIN_UNKNOWN = -1,
JOIN_SUCCESS,
JOIN_COMMAND_FAIL,
JOIN_FAIL_NO_PING,
JOIN_FAIL_NO_REPLICATION
} standy_join_status;
typedef enum
{
REMOTE_ERROR_UNKNOWN = -1,
REMOTE_ERROR_NONE,
REMOTE_ERROR_DB_CONNECTION,
REMOTE_ERROR_CONNINFO_PARSE
} t_remote_error_type;
typedef struct ColHeader
{
char title[MAXLEN];
int max_length;
int cur_length;
bool display;
} ColHeader;
/* globally available configuration structures */
extern t_runtime_options runtime_options;
extern t_conninfo_param_list source_conninfo;
extern t_node_info target_node_info;
/* global variables */
extern bool config_file_required;
extern char pg_bindir[MAXLEN];
/* global functions */
extern int check_server_version(PGconn *conn, char *server_type, bool exit_on_error, char *server_version_string);
extern bool create_repmgr_extension(PGconn *conn);
extern int test_ssh_connection(char *host, char *remote_user);
extern standy_clone_mode get_standby_clone_mode(void);
extern int copy_remote_files(char *host, char *remote_user, char *remote_path,
char *local_path, bool is_directory, int server_version_num);
extern void print_error_list(ItemList *error_list, int log_level);
extern void make_pg_path(PQExpBufferData *buf, const char *file);
extern void get_superuser_connection(PGconn **conn, PGconn **superuser_conn, PGconn **privileged_conn);
extern void make_remote_repmgr_path(PQExpBufferData *outputbuf, t_node_info *remote_node_record);
extern void make_repmgrd_path(PQExpBufferData *output_buf);
/* display functions */
extern bool format_node_status(t_node_info *node_info, PQExpBufferData *node_status, PQExpBufferData *upstream, ItemList *warnings);
extern void print_help_header(void);
extern void print_status_header(int cols, ColHeader *headers);
/* server control functions */
extern void get_server_action(t_server_action action, char *script, char *data_dir);
extern bool data_dir_required_for_action(t_server_action action);
extern void get_node_config_directory(char *config_dir_buf);
extern void get_node_data_directory(char *data_dir_buf);
extern void init_node_record(t_node_info *node_record);
extern bool can_use_pg_rewind(PGconn *conn, const char *data_directory, PQExpBufferData *reason);
extern void make_standby_signal_path(const char *data_dir, char *buf);
extern bool write_standby_signal(const char *data_dir);
extern bool create_replication_slot(PGconn *conn, char *slot_name, t_node_info *upstream_node_record, PQExpBufferData *error_msg);
extern bool drop_replication_slot_if_exists(PGconn *conn, int node_id, char *slot_name);
extern standy_join_status check_standby_join(PGconn *primary_conn, t_node_info *primary_node_record, t_node_info *standby_node_record);
extern bool check_replication_slots_available(int node_id, PGconn* conn);
extern bool check_node_can_attach(TimeLineID local_tli, XLogRecPtr local_xlogpos, PGconn *follow_target_conn, t_node_info *follow_target_node_record, bool is_rejoin);
extern bool check_replication_config_owner(int pg_version, const char *data_directory, PQExpBufferData *error_msg, PQExpBufferData *detail_msg);
extern void check_shared_library(PGconn *conn);
extern bool is_repmgrd_running(PGconn *conn);
extern int parse_repmgr_version(const char *version_string);
#endif /* _REPMGR_CLIENT_GLOBAL_H_ */