blob: edb2f8ac59913cbf4f19268b9e7e60ac3e2eb489 [file] [log] [blame]
/*
* Copyright (C) 2017 Oracle. All Rights Reserved.
*
* Author: Darrick J. Wong <darrick.wong@oracle.com>
*
* 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; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it would 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 the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
* This code was adapted from repair/threads.h.
*/
#ifndef _WORKQUEUE_H_
#define _WORKQUEUE_H_
#include <pthread.h>
struct workqueue;
typedef void workqueue_func_t(struct workqueue *wq, uint32_t index, void *arg);
struct workqueue_item {
struct workqueue *queue;
struct workqueue_item *next;
workqueue_func_t *function;
void *arg;
uint32_t index;
};
struct workqueue {
void *wq_ctx;
pthread_t *threads;
struct workqueue_item *next_item;
struct workqueue_item *last_item;
pthread_mutex_t lock;
pthread_cond_t wakeup;
unsigned int item_count;
unsigned int thread_count;
bool terminate;
};
int workqueue_create(struct workqueue *wq, void *wq_ctx,
unsigned int nr_workers);
int workqueue_add(struct workqueue *wq, workqueue_func_t fn,
uint32_t index, void *arg);
void workqueue_destroy(struct workqueue *wq);
#endif /* _WORKQUEUE_H_ */