mysql5/mysql-5.7.27/sql/srv_session_info_service.cc

156 lines
3.5 KiB
C++

/* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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; version 2 of the
License.
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, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#include "mysql/service_srv_session_info.h"
#include "srv_session.h"
/**
@file
Implementation of setters and getters of some properties of a session.
*/
#define VALID_SESSION(s) ((s) && Srv_session::is_valid((s)))
/**
Returns the THD of a session.
@param session Session
*/
extern "C"
THD* srv_session_info_get_thd(Srv_session *session)
{
return VALID_SESSION(session)? session->get_thd() : NULL;
}
/**
Returns the ID of a session.
The value returned from THD::thread_id()
@param session Session
*/
extern "C"
my_thread_id srv_session_info_get_session_id(Srv_session *session)
{
return VALID_SESSION(session)? session->get_session_id() : 0;
}
/**
Returns the client port of a session.
@note The client port in SHOW PROCESSLIST, INFORMATION_SCHEMA.PROCESSLIST.
This port is NOT shown in PERFORMANCE_SCHEMA.THREADS.
@param session Session
*/
extern "C"
uint16_t srv_session_info_get_client_port(Srv_session *session)
{
return VALID_SESSION(session)? session->get_client_port() : 0;
}
/**
Sets the client port of a session.
@note The client port in SHOW PROCESSLIST, INFORMATION_SCHEMA.PROCESSLIST.
This port is NOT shown in PERFORMANCE_SCHEMA.THREADS.
@param session Session
@param port Port number
@return
0 success
1 failure
*/
extern "C"
int srv_session_info_set_client_port(Srv_session *session, uint16_t port)
{
return VALID_SESSION(session)? session->set_client_port(port),0 : 1;
}
/**
Returns the current database of a session.
@param session Session
*/
extern "C"
LEX_CSTRING srv_session_info_get_current_db(Srv_session *session)
{
static LEX_CSTRING empty= { NULL, 0 };
return VALID_SESSION(session)? session->get_current_database() : empty;
}
/**
Sets the connection type of a session.
@see enum_vio_type
@note If NO_VIO_TYPE passed as type the call will fail.
@return
0 success
1 failure
*/
extern "C"
int srv_session_info_set_connection_type(Srv_session *session,
enum_vio_type type)
{
return VALID_SESSION(session)? session->set_connection_type(type) : 1;
}
/**
Returns whether the session was killed
@param session Session
@return
0 not killed
1 killed
*/
extern "C"
int srv_session_info_killed(Srv_session *session)
{
return (!VALID_SESSION(session) || session->get_thd()->killed)? 1:0;
}
/**
Returns the number opened sessions in thread initialized by srv_session
service.
*/
unsigned int srv_session_info_session_count()
{
return Srv_session::session_count();
}
/**
Returns the number opened sessions in thread initialized by srv_session
service.
@param plugin Pointer to the plugin structure, passed to the plugin over
the plugin init function.
*/
unsigned int srv_session_info_thread_count(const void *plugin)
{
return Srv_session::thread_count(plugin);
}