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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; }; #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 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 *); /* * 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