kolibrios-fun/drivers/include/linux/workqueue.h
Sergey Semyonov (Serge) 5527aca48a ddk: update
git-svn-id: svn://kolibrios.org@4125 a494cfbc-eb01-0410-851d-a64ba20cac60
2013-10-29 07:49:21 +00:00

91 lines
2.7 KiB
C

#ifndef _LINUX_WORKQUEUE_H
#define _LINUX_WORKQUEUE_H
#include <linux/list.h>
#include <syscall.h>
struct work_struct;
typedef void (*work_func_t)(struct work_struct *work);
/*
* Workqueue flags and constants. For details, please refer to
* Documentation/workqueue.txt.
*/
enum {
WQ_NON_REENTRANT = 1 << 0, /* guarantee non-reentrance */
WQ_UNBOUND = 1 << 1, /* not bound to any cpu */
WQ_FREEZABLE = 1 << 2, /* freeze during suspend */
WQ_MEM_RECLAIM = 1 << 3, /* may be used for memory reclaim */
WQ_HIGHPRI = 1 << 4, /* high priority */
WQ_CPU_INTENSIVE = 1 << 5, /* cpu instensive workqueue */
WQ_DRAINING = 1 << 6, /* internal: workqueue is draining */
WQ_RESCUER = 1 << 7, /* internal: workqueue has rescuer */
WQ_MAX_ACTIVE = 512, /* I like 512, better ideas? */
WQ_MAX_UNBOUND_PER_CPU = 4, /* 4 * #cpus for unbound wq */
WQ_DFL_ACTIVE = WQ_MAX_ACTIVE / 2,
};
struct workqueue_struct {
spinlock_t lock;
struct list_head worklist;
struct list_head delayed_worklist;
};
struct work_struct {
struct list_head entry;
struct workqueue_struct *data;
work_func_t func;
};
struct delayed_work {
struct work_struct work;
unsigned int delay;
};
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;
void run_workqueue(struct workqueue_struct *cwq);
struct workqueue_struct *alloc_workqueue_key(const char *fmt,
unsigned int flags, int max_active);
#define alloc_ordered_workqueue(fmt, flags, args...) \
alloc_workqueue(fmt, WQ_UNBOUND | (flags), 1, ##args)
bool queue_work(struct workqueue_struct *wq, struct work_struct *work);
int queue_delayed_work(struct workqueue_struct *wq,
struct delayed_work *dwork, unsigned long delay);
bool schedule_delayed_work(struct delayed_work *dwork, unsigned long delay);
#define INIT_WORK(_work, _func) \
do { \
INIT_LIST_HEAD(&(_work)->entry); \
(_work)->func = _func; \
} while (0)
#define INIT_DELAYED_WORK(_work, _func) \
do { \
INIT_LIST_HEAD(&(_work)->work.entry); \
(_work)->work.func = _func; \
} while (0)
static inline bool schedule_work(struct work_struct *work)
{
return queue_work(system_wq, work);
}
#endif /* _LINUX_WORKQUEUE_H */