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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | /* |
| 2 | * workqueue.h --- work queue handling for Linux. |
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| 3 | */ |
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| 4 | |||
| 5 | #ifndef _LINUX_WORKQUEUE_H |
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| 6 | #define _LINUX_WORKQUEUE_H |
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| 7 | |||
| 8 | #include <linux/timer.h> |
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| 9 | #include <linux/linkage.h> |
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| 10 | |||
| 11 | struct workqueue_struct; |
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| 12 | |||
| 13 | struct work_struct { |
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| 14 | unsigned long pending; |
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| 15 | struct list_head entry; |
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| 16 | void (*func)(void *); |
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| 17 | void *data; |
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| 18 | void *wq_data; |
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| 19 | struct timer_list timer; |
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| 20 | }; |
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| 21 | |||
| 22 | #define __WORK_INITIALIZER(n, f, d) { \ |
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| 23 | .entry = { &(n).entry, &(n).entry }, \ |
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| 24 | .func = (f), \ |
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| 25 | .data = (d), \ |
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| 26 | .timer = TIMER_INITIALIZER(NULL, 0, 0), \ |
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| 27 | } |
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| 28 | |||
| 29 | #define DECLARE_WORK(n, f, d) \ |
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| 30 | struct work_struct n = __WORK_INITIALIZER(n, f, d) |
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| 31 | |||
| 32 | /* |
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| 33 | * initialize a work-struct's func and data pointers: |
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| 34 | */ |
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| 35 | #define PREPARE_WORK(_work, _func, _data) \ |
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| 36 | do { \ |
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| 37 | (_work)->func = _func; \ |
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| 38 | (_work)->data = _data; \ |
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| 39 | } while (0) |
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| 40 | |||
| 41 | /* |
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| 42 | * initialize all of a work-struct: |
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| 43 | */ |
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| 44 | #define INIT_WORK(_work, _func, _data) \ |
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| 45 | do { \ |
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| 46 | INIT_LIST_HEAD(&(_work)->entry); \ |
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| 47 | (_work)->pending = 0; \ |
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| 48 | PREPARE_WORK((_work), (_func), (_data)); \ |
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| 49 | init_timer(&(_work)->timer); \ |
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| 50 | } while (0) |
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| 51 | |||
| 52 | extern struct workqueue_struct *create_workqueue(const char *name); |
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| 53 | extern void destroy_workqueue(struct workqueue_struct *wq); |
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| 54 | |||
| 55 | extern int FASTCALL(queue_work(struct workqueue_struct *wq, struct work_struct *work)); |
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| 56 | extern int FASTCALL(queue_delayed_work(struct workqueue_struct *wq, struct work_struct *work, unsigned long delay)); |
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| 57 | extern void FASTCALL(flush_workqueue(struct workqueue_struct *wq)); |
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| 58 | |||
| 59 | extern int FASTCALL(schedule_work(struct work_struct *work)); |
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| 60 | extern int FASTCALL(schedule_delayed_work(struct work_struct *work, unsigned long delay)); |
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| 61 | extern void flush_scheduled_work(void); |
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| 62 | extern int current_is_keventd(void); |
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| 63 | |||
| 64 | extern void init_workqueues(void); |
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| 65 | |||
| 66 | /* |
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| 67 | * Kill off a pending schedule_delayed_work(). Note that the work callback |
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| 68 | * function may still be running on return from cancel_delayed_work(). Run |
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| 69 | * flush_scheduled_work() to wait on it. |
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| 70 | */ |
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| 71 | static inline int cancel_delayed_work(struct work_struct *work) |
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| 72 | { |
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| 73 | return del_timer_sync(&work->timer); |
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| 74 | } |
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| 75 | |||
| 76 | #endif |
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| 77 |