mysql_ping

mysql_ping checks whether a MariaDB server connection is still active and attempts an automatic reconnect if the connection has dropped and reconnect is enabled.

Syntax

int mysql_ping(MYSQL * mysql);

Parameter

• mysql - a mysql handle, which was previously allocated by mysql_init() or mysql_real_connect().

Description

Checks whether the connection to the server is working. If it has gone down, and global option reconnect is enabled an automatic reconnection is attempted.

This function can be used by clients that remain idle for a long while, to check whether the server has closed the connection and reconnect if necessary.

Return Value

Returns zero on success, nonzero if an error occurred.

If a reconnect occurred the thread_id will change. Also resources bundled to the connection (prepared statements, locks, temporary tables, ...) will be released.

See Also

• mysql_options()

• mysql_kill()

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