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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems
*
* 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 DRIZZLE_SERVER_SCHEDULER_H
#define DRIZZLE_SERVER_SCHEDULER_H
/*
Classes for the thread scheduler
*/
/* Forward declarations */
class Session;
struct event;
/* Functions used when manipulating threads */
class scheduler_functions
{
public:
uint32_t max_threads;
bool (*init)(void);
bool (*init_new_connection_thread)(void);
void (*add_connection)(Session *session);
void (*post_kill_notification)(Session *session);
bool (*end_thread)(Session *session, bool cache_thread);
void (*end)(void);
scheduler_functions();
};
enum scheduler_types
{
SCHEDULER_POOL_OF_THREADS
};
void one_thread_per_connection_scheduler(scheduler_functions* func);
void one_thread_scheduler(scheduler_functions* func);
#define HAVE_POOL_OF_THREADS 1
class session_scheduler
{
public:
bool logged_in;
struct event* io_event;
LIST list;
bool thread_attached; /* Indicates if Session is attached to the OS thread */
session_scheduler();
~session_scheduler();
session_scheduler(const session_scheduler&);
void operator=(const session_scheduler&);
bool init(Session* parent_session);
bool thread_attach();
void thread_detach();
};
void pool_of_threads_scheduler(scheduler_functions* func);
#endif /* DRIZZLE_SERVER_SCHEDULER_H */
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