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Add a RecordStatus return type for functions which populate record structures

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Unify a bunch of slightly different ways of handling the result.
This commit is contained in:
Ian Barwick
2017-06-23 16:16:46 +09:00
parent 0823a83f92
commit dbaa2e0b44
5 changed files with 61 additions and 50 deletions
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15
dbutils.h
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@@ -15,9 +15,6 @@
#include "config.h"
#include "strutil.h"
#define NODE_RECORD_NOT_FOUND 0
#define NODE_RECORD_QUERY_ERROR -1
typedef enum {
UNKNOWN = 0,
MASTER,
@@ -39,6 +36,12 @@ typedef enum {
RECTYPE_STANDBY
} t_recovery_type;
typedef enum {
RECORD_ERROR = -1,
RECORD_FOUND,
RECORD_NOT_FOUND
} RecordStatus;
/*
* Struct to store node information
*/
@@ -198,8 +201,8 @@ bool atobool(const char *value);
t_server_type parse_node_type(const char *type);
const char * get_node_type_string(t_server_type type);
int get_node_record(PGconn *conn, int node_id, t_node_info *node_info);
int get_node_record_by_name(PGconn *conn, const char *node_name, t_node_info *node_info);
RecordStatus get_node_record(PGconn *conn, int node_id, t_node_info *node_info);
RecordStatus get_node_record_by_name(PGconn *conn, const char *node_name, t_node_info *node_info);
bool get_local_node_record(PGconn *conn, int node_id, t_node_info *node_info);
bool get_master_node_record(PGconn *conn, t_node_info *node_info);
void get_downstream_node_records(PGconn *conn, int node_id, NodeInfoList *nodes);
@@ -218,7 +221,7 @@ bool create_event_record_extended(PGconn *conn, t_configuration_options *
/* replication slot functions */
bool create_replication_slot(PGconn *conn, char *slot_name, int server_version_num, PQExpBufferData *error_msg);
bool drop_replication_slot(PGconn *conn, char *slot_name);
int get_slot_record(PGconn *conn, char *slot_name, t_replication_slot *record);
RecordStatus get_slot_record(PGconn *conn, char *slot_name, t_replication_slot *record);
/* asynchronous query functions */
bool cancel_query(PGconn *conn, int timeout);