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MXS-2276 Expose lower level mon_ping_or_connect_to_db

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The functionality is useful also when you do not have a
MXS_MONITORED_SERVER instance.
This commit is contained in:
Johan Wikman
2019-01-21 16:45:29 +02:00
parent 5ebd237a4f
commit 0fe5b0bec9
2 changed files with 49 additions and 27 deletions
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23
include/maxscale/monitor.hh
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@ -317,7 +317,30 @@ void monitor_check_maintenance_requests(Monitor* monitor);
bool mon_status_changed(MXS_MONITORED_SERVER* mon_srv);
bool mon_print_fail_status(MXS_MONITORED_SERVER* mon_srv);
/**
* Ping or connect to a database. If connection does not exist or ping fails, a new connection
* is created. This will always leave a valid database handle in @c *ppCon, allowing the user
* to call MySQL C API functions to find out the reason of the failure.
*
* @param mon A monitor.
* @param pServer A server.
* @param ppCon Address of pointer to a MYSQL instance. The instance should either be
* valid or NULL.
* @return Connection status.
*/
mxs_connect_result_t mon_ping_or_connect_to_db(const Monitor& mon, SERVER& server, MYSQL** ppCon);
/**
* Ping or connect to a database. If connection does not exist or ping fails, a new connection is created.
* This will always leave a valid database handle in the database->con pointer, allowing the user to call
* MySQL C API functions to find out the reason of the failure.
*
* @param mon Monitor
* @param database Monitored database
* @return Connection status.
*/
mxs_connect_result_t mon_ping_or_connect_to_db(Monitor* mon, MXS_MONITORED_SERVER* database);
bool mon_connection_is_ok(mxs_connect_result_t connect_result);
void mon_log_connect_error(MXS_MONITORED_SERVER* database, mxs_connect_result_t rval);
const char* mon_get_event_name(mxs_monitor_event_t event);