104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/*
|
|
* workqueue.h --- work queue handling for Linux.
|
|
*/
|
|
|
|
#ifndef _LINUX_WORKQUEUE_H
|
|
#define _LINUX_WORKQUEUE_H
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/linkage.h>
|
|
#include <linux/lockdep.h>
|
|
#include <linux/threads.h>
|
|
|
|
#include <syscall.h>
|
|
struct workqueue_struct;
|
|
|
|
struct work_struct;
|
|
typedef void (*work_func_t)(struct work_struct *work);
|
|
void __stdcall delayed_work_timer_fn(unsigned long __data);
|
|
|
|
/*
|
|
* 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;
|
|
#ifdef CONFIG_LOCKDEP
|
|
struct lockdep_map lockdep_map;
|
|
#endif
|
|
};
|
|
|
|
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 */
|