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/*
* workqueue.h --- work queue handling for Linux.
*/
#ifndef _LINUX_WORKQUEUE_H
#define _LINUX_WORKQUEUE_H
#include <linux/timer.h>
#include <linux/linkage.h>
#include <linux/bitops.h>
struct workqueue_struct;
struct work_struct {
unsigned long pending;
struct list_head entry;
void (*func)(void *);
void *data;
void *wq_data;
struct timer_list timer;
};
struct execute_work {
struct work_struct work;
};
#define __WORK_INITIALIZER(n, f, d) { \
.entry = { &(n).entry, &(n).entry }, \
.func = (f), \
.data = (d), \
.timer = TIMER_INITIALIZER(NULL, 0, 0), \
}
#define DECLARE_WORK(n, f, d) \
struct work_struct n = __WORK_INITIALIZER(n, f, d)
/*
* initialize a work-struct's func and data pointers:
*/
#define PREPARE_WORK(_work, _func, _data) \
do { \
(_work)->func = _func; \
(_work)->data = _data; \
} while (0)
/*
* initialize all of a work-struct:
*/
#define INIT_WORK(_work, _func, _data) \
do { \
INIT_LIST_HEAD(&(_work)->entry); \
(_work)->pending = 0; \
PREPARE_WORK((_work), (_func), (_data)); \
init_timer(&(_work)->timer); \
} while (0)
extern struct workqueue_struct *__create_workqueue(const char *name,
int singlethread);
#define create_workqueue(name) __create_workqueue((name), 0)
#define create_singlethread_workqueue(name) __create_workqueue((name), 1)
extern void destroy_workqueue(struct workqueue_struct *wq);
extern int FASTCALL(queue_work(struct workqueue_struct *wq, struct work_struct *work));
extern int FASTCALL(queue_delayed_work(struct workqueue_struct *wq, struct work_struct *work, unsigned long delay));
extern int queue_delayed_work_on(int cpu, struct workqueue_struct *wq,
struct work_struct *work, unsigned long delay);
extern void FASTCALL(flush_workqueue(struct workqueue_struct *wq));
extern int FASTCALL(schedule_work(struct work_struct *work));
extern int FASTCALL(schedule_delayed_work(struct work_struct *work, unsigned long delay));
extern int schedule_delayed_work_on(int cpu, struct work_struct *work, unsigned long delay);
extern int schedule_on_each_cpu(void (*func)(void *info), void *info);
extern void flush_scheduled_work(void);
extern int current_is_keventd(void);
extern int keventd_up(void);
extern void init_workqueues(void);
void cancel_rearming_delayed_work(struct work_struct *work);
void cancel_rearming_delayed_workqueue(struct workqueue_struct *,
struct work_struct *);
int execute_in_process_context(void (*fn)(void *), void *,
struct execute_work *);
/*
* Kill off a pending schedule_delayed_work(). Note that the work callback
* function may still be running on return from cancel_delayed_work(). Run
* flush_scheduled_work() to wait on it.
*/
static inline int cancel_delayed_work(struct work_struct *work)
{
int ret;
ret = del_timer_sync(&work->timer);
if (ret)
clear_bit(0, &work->pending);
return ret;
}
#endif
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