acl/include/mysql/service_thread_scheduler.h
2014-11-19 00:25:21 +08:00

66 lines
1.9 KiB
C

/*
Copyright (C) 2010, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef SERVICE_THREAD_SCHEDULER_INCLUDED
#define SERVICE_THREAD_SCHEDULER_INCLUDED
#ifdef __cplusplus
extern "C" {
#endif
struct scheduler_functions;
extern struct my_thread_scheduler_service {
int (*set)(struct scheduler_functions *scheduler);
int (*reset)();
} *my_thread_scheduler_service;
#ifdef MYSQL_DYNAMIC_PLUGIN
#define my_thread_scheduler_set(F) my_thread_scheduler_service->set((F))
#define my_thread_scheduler_reset() my_thread_scheduler_service->reset()
#else
/**
Set the thread scheduler to use for the server.
@param scheduler Pointer to scheduler callbacks to use.
@retval 0 Scheduler installed correctly.
@retval 1 Invalid value (NULL) used for scheduler.
*/
int my_thread_scheduler_set(struct scheduler_functions *scheduler);
/**
Restore the previous thread scheduler.
@note If no thread scheduler was installed previously with
thd_set_thread_scheduler, this function will report an error.
@retval 0 Scheduler installed correctly.
@retval 1 No scheduler installed.
*/
int my_thread_scheduler_reset();
#endif
#ifdef __cplusplus
}
#endif
#endif /* SERVICE_THREAD_SCHEDULER_INCLUDED */