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/*
Copyright (c) 2010, 2013, 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
*/
#ifndef SERVICE_THREAD_SCHEDULER_INCLUDED
#define SERVICE_THREAD_SCHEDULER_INCLUDED
#ifdef __cplusplus
extern "C" {
#endif
struct Connection_handler_functions;
struct THD_event_functions;
extern struct my_thread_scheduler_service {
int (*connection_handler_set)(struct Connection_handler_functions *,
struct THD_event_functions *);
int (*connection_handler_reset)();
} *my_thread_scheduler_service;
#ifdef MYSQL_DYNAMIC_PLUGIN
#define my_connection_handler_set(F, M) \
my_thread_scheduler_service->connection_handler_set((F), (M))
#define my_connection_handler_reset() \
my_thread_scheduler_service->connection_handler_reset()
#else
/**
Instantiates Plugin_connection_handler based on the supplied
Conection_handler_functions and sets it as the current
connection handler.
Also sets the THD_event_functions functions which will
be called by the server when e.g. begining a wait.
Remembers the existing connection handler so that it can be restored later.
@param chf struct with functions to be called when e.g. handling
new clients.
@param tef struct with functions to be called when events
(e.g. lock wait) happens.
@note Both pointers (i.e. not the structs themselves) will be copied,
so the structs must not disappear.
@note We don't support dynamically loading more than one connection handler.
@retval 1 failure
@retval 0 success
*/
int my_connection_handler_set(struct Connection_handler_functions *chf,
struct THD_event_functions *tef);
/**
Destroys the current connection handler and restores the previous.
Should only be called after calling my_connection_handler_set().
@retval 1 failure
@retval 0 success
*/
int my_connection_handler_reset();
#endif /* MYSQL_DYNAMIC_PLUGIN */
#ifdef __cplusplus
}
#endif
#endif /* SERVICE_THREAD_SCHEDULER_INCLUDED */