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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/workqueue.h | |
download | op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/workqueue.h')
-rw-r--r-- | include/linux/workqueue.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h new file mode 100644 index 0000000..ff46f53 --- /dev/null +++ b/include/linux/workqueue.h @@ -0,0 +1,90 @@ +/* + * 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 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); + +/* + * 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 |