FreeBSD Manual Pages
mysql_sessi...ck_get_first(3) MariaDB Connector/C mysql_sessi...ck_get_first(3)
Name
mysql_session_track_get_first - retrieves first session status change in-
formation
Synopsis
#include <mysql.h>
int mysql_session_track_get_first(MYSQL * mysql,
enum enum_session_state_type type,
const char **data,
size_t *length );
Description
mysql_session_track_get_first() retrieves the first session status change
information received from the server.
Depending on the specified type the read only data pointer will contain the
following information: * SESSION_TRACK_SCHEMA: The name of the default
schema (database) * SESSION_TRACK_SYSTEM_VARIABLES: If a session system
variable is changed, the first call contains the name of the changed system
variable, the second call contains the new value. Both name and value are
represented as strings. * SESSION_TRACK_STATE_CHANGE: shows whether the
session status has changed. The value is changed as string "1" (changed)
or "0" (unchanged).
Further data needs to be obtained by calling mysql_ses-
sion_track_get_next(3).
Parameter
* mysql - mysql handle, which was previously allocated by mysql_init(3) and
connected by mysql_real_connect(3).
* type - type of information. Valid values are
* SESSION_TRACK_SYSTEM_VARIABLES
* SESSION_TRACK_SCHEMA
* SESSION_TRACK_STATE_CHANGE
* SESSION_TRACK_GTIDS (unsupported)
* data - pointer to data, which must be declared as const char *
* length - pointer to a size_t variable, which will contain the length of
data
Returns
Zero for success, nonzero if no session tracking information is available.
History
mysql_session_track_get_first() was added in Connector/C 3.0 and MariaDB
Server 10.2.
See also
* mysql_session_track_get_next(3)
Version 3.4 mysql_sessi...ck_get_first(3)
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=mysql_session_track_get_first&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>