2015-10-15 10:25:28 +02:00

121 lines
4.2 KiB
C

/* $NetBSD: workqueue.h,v 1.4 2014/07/16 20:59:58 riastradh Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Taylor R. Campbell.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _LINUX_WORKQUEUE_H_
#define _LINUX_WORKQUEUE_H_
#include <sys/types.h>
#include <sys/callout.h>
#include <sys/queue.h>
#include <sys/workqueue.h>
#include <linux/kernel.h>
#define INIT_DELAYED_WORK linux_INIT_DELAYED_WORK
#define INIT_WORK linux_INIT_WORK
#define alloc_ordered_workqueue linux_alloc_ordered_workqueue
#define cancel_delayed_work linux_cancel_delayed_work
#define cancel_delayed_work_sync linux_cancel_delayed_work_sync
#define cancel_work linux_cancel_work
#define cancel_work_sync linux_cancel_work_sync
#define destroy_workqueue linux_destroy_workqueue
#define flush_work linux_flush_work
#define flush_workqueue linux_flush_workqueue
#define queue_delayed_work linux_queue_delayed_work
#define mod_delayed_work linux_mod_delayed_work
#define queue_work linux_queue_work
#define schedule_delayed_work linux_schedule_delayed_work
#define schedule_work linux_schedule_work
#define system_wq linux_system_wq
#define to_delayed_work linux_to_delayed_work
struct workqueue_struct;
struct work_struct {
struct work w_wk;
__cpu_simple_lock_t w_lock; /* XXX */
enum {
WORK_IDLE,
WORK_DELAYED,
WORK_PENDING,
WORK_INVOKED,
WORK_CANCELLED,
WORK_DELAYED_CANCELLED,
} w_state;
struct workqueue_struct *w_wq;
void (*w_fn)(struct work_struct *);
};
struct delayed_work {
/* Not dw_work; name must match Linux. */
struct work_struct work;
struct callout dw_callout;
TAILQ_ENTRY(delayed_work) dw_entry;
};
static inline struct delayed_work *
to_delayed_work(struct work_struct *work)
{
return container_of(work, struct delayed_work, work);
}
extern struct workqueue_struct *system_wq;
int linux_workqueue_init(void);
void linux_workqueue_fini(void);
#define create_singlethread_workqueue(name) \
alloc_ordered_workqueue((name), 0)
struct workqueue_struct *
alloc_ordered_workqueue(const char *, int);
void destroy_workqueue(struct workqueue_struct *);
void flush_workqueue(struct workqueue_struct *);
void flush_scheduled_work(void);
void INIT_WORK(struct work_struct *, void (*)(struct work_struct *));
bool schedule_work(struct work_struct *);
bool queue_work(struct workqueue_struct *, struct work_struct *);
bool cancel_work_sync(struct work_struct *);
void flush_work(struct work_struct *);
void INIT_DELAYED_WORK(struct delayed_work *,
void (*)(struct work_struct *));
bool schedule_delayed_work(struct delayed_work *, unsigned long);
bool queue_delayed_work(struct workqueue_struct *, struct delayed_work *,
unsigned long ticks);
bool mod_delayed_work(struct workqueue_struct *, struct delayed_work *,
unsigned long ticks);
bool cancel_delayed_work(struct delayed_work *);
bool cancel_delayed_work_sync(struct delayed_work *);
#endif /* _LINUX_WORKQUEUE_H_ */