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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 */