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