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/*
Copyright (c) 2007, 2008, Sun Microsystems, Inc,
Copyright (c) 2011, 2012, Monty Program Ab
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 Street, Fifth Floor, Boston, MA 02110-1335 USA */
#ifndef WQUEUE_INCLUDED
#define WQUEUE_INCLUDED
#include <my_pthread.h>
/* info about requests in a waiting queue */
typedef struct st_pagecache_wqueue
{
struct st_my_thread_var *last_thread; /* circular list of waiting
threads */
} WQUEUE;
void wqueue_link_into_queue(WQUEUE *wqueue, struct st_my_thread_var *thread);
void wqueue_unlink_from_queue(WQUEUE *wqueue, struct st_my_thread_var *thread);
void wqueue_add_to_queue(WQUEUE *wqueue, struct st_my_thread_var *thread);
void wqueue_add_and_wait(WQUEUE *wqueue,
struct st_my_thread_var *thread,
mysql_mutex_t *lock);
void wqueue_release_queue(WQUEUE *wqueue);
void wqueue_release_one_locktype_from_queue(WQUEUE *wqueue);
#endif
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