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sys/event.h: Update to FreeBSD head 2017-01-02

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This commit is contained in:
Sebastian Huber
2017-01-09 14:53:26 +01:00
parent a7cfb4bda0
commit 45ae4a89e7
1 changed files with 31 additions and 29 deletions
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52
cpukit/libcsupport/include/sys/event.h
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@@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: head/sys/sys/event.h 302242 2016-06-27 23:34:53Z kib $
* $FreeBSD: head/sys/sys/event.h 311055 2017-01-02 09:02:39Z kib $
*/
#ifndef _SYS_EVENT_H_
@@ -202,8 +202,11 @@ struct filterops {
};
/*
* Setting the KN_INFLUX flag enables you to unlock the kq that this knote
* is on, and modify kn_status as if you had the KQ lock.
* An in-flux knote cannot be dropped from its kq while the kq is
* unlocked. If the KN_SCAN flag is not set, a thread can only set
* kn_influx when it is exclusive owner of the knote state, and can
* modify kn_status as if it had the KQ lock. KN_SCAN must not be set
* on a knote which is already in flux.
*
* kn_sfflags, kn_sdata, and kn_kevent are protected by the knlist lock.
*/
@@ -214,16 +217,18 @@ struct knote {
TAILQ_ENTRY(knote) kn_tqe;
struct kqueue *kn_kq; /* which queue we are on */
struct kevent kn_kevent;
void *kn_hook;
int kn_hookid;
int kn_status; /* protected by kq lock */
#define KN_ACTIVE 0x01 /* event has been triggered */
#define KN_QUEUED 0x02 /* event is on queue */
#define KN_DISABLED 0x04 /* event is disabled */
#define KN_DETACHED 0x08 /* knote is detached */
#define KN_INFLUX 0x10 /* knote is in flux */
#define KN_MARKER 0x20 /* ignore this knote */
#define KN_KQUEUE 0x40 /* this knote belongs to a kq */
#define KN_HASKQLOCK 0x80 /* for _inevent */
#define KN_SCAN 0x100 /* flux set in kqueue_scan() */
int kn_influx;
int kn_sfflags; /* saved filter flags */
intptr_t kn_sdata; /* saved data field */
union {
@@ -231,12 +236,9 @@ struct knote {
struct proc *p_proc; /* proc pointer */
struct kaiocb *p_aio; /* AIO job pointer */
struct aioliojob *p_lio; /* LIO job pointer */
sbintime_t *p_nexttime; /* next timer event fires at */
void *p_v; /* generic other pointer */
} kn_ptr;
struct filterops *kn_fop;
void *kn_hook;
int kn_hookid;
#define kn_id kn_kevent.ident
#define kn_filter kn_kevent.filter
@@ -257,30 +259,30 @@ struct knlist;
struct mtx;
struct rwlock;
extern void knote(struct knlist *list, long hint, int lockflags);
extern void knote_fork(struct knlist *list, int pid);
extern struct knlist *knlist_alloc(struct mtx *lock);
extern void knlist_detach(struct knlist *knl);
extern void knlist_add(struct knlist *knl, struct knote *kn, int islocked);
extern void knlist_remove(struct knlist *knl, struct knote *kn, int islocked);
extern int knlist_empty(struct knlist *knl);
extern void knlist_init(struct knlist *knl, void *lock,
void (*kl_lock)(void *), void (*kl_unlock)(void *),
void (*kl_assert_locked)(void *), void (*kl_assert_unlocked)(void *));
extern void knlist_init_mtx(struct knlist *knl, struct mtx *lock);
extern void knlist_init_rw_reader(struct knlist *knl, struct rwlock *lock);
extern void knlist_destroy(struct knlist *knl);
extern void knlist_cleardel(struct knlist *knl, struct thread *td,
void knote(struct knlist *list, long hint, int lockflags);
void knote_fork(struct knlist *list, int pid);
struct knlist *knlist_alloc(struct mtx *lock);
void knlist_detach(struct knlist *knl);
void knlist_add(struct knlist *knl, struct knote *kn, int islocked);
void knlist_remove(struct knlist *knl, struct knote *kn, int islocked);
int knlist_empty(struct knlist *knl);
void knlist_init(struct knlist *knl, void *lock, void (*kl_lock)(void *),
void (*kl_unlock)(void *), void (*kl_assert_locked)(void *),
void (*kl_assert_unlocked)(void *));
void knlist_init_mtx(struct knlist *knl, struct mtx *lock);
void knlist_init_rw_reader(struct knlist *knl, struct rwlock *lock);
void knlist_destroy(struct knlist *knl);
void knlist_cleardel(struct knlist *knl, struct thread *td,
int islocked, int killkn);
#define knlist_clear(knl, islocked) \
knlist_cleardel((knl), NULL, (islocked), 0)
#define knlist_delete(knl, td, islocked) \
knlist_cleardel((knl), (td), (islocked), 1)
extern void knote_fdclose(struct thread *p, int fd);
extern int kqfd_register(int fd, struct kevent *kev, struct thread *p,
void knote_fdclose(struct thread *p, int fd);
int kqfd_register(int fd, struct kevent *kev, struct thread *p,
int waitok);
extern int kqueue_add_filteropts(int filt, struct filterops *filtops);
extern int kqueue_del_filteropts(int filt);
int kqueue_add_filteropts(int filt, struct filterops *filtops);
int kqueue_del_filteropts(int filt);
#else /* !_KERNEL */