diff options
Diffstat (limited to 'sys/kern/kern_event.c')
| -rw-r--r-- | sys/kern/kern_event.c | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c index 5b4445c..6bec056 100644 --- a/sys/kern/kern_event.c +++ b/sys/kern/kern_event.c @@ -122,7 +122,16 @@ SYSCTL_INT(_kern, OID_AUTO, kq_calloutmax, CTLFLAG_RW, #define KN_HASHSIZE 64 /* XXX should be tunable */ #define KN_HASH(val, mask) (((val) ^ (val >> 8)) & (mask)) -extern struct filterops aio_filtops; +static int +filt_nullattach(struct knote *kn) +{ + + return (ENXIO); +}; + +struct filterops null_filtops = + { 0, filt_nullattach, NULL, NULL }; + extern struct filterops sig_filtops; /* @@ -131,7 +140,7 @@ extern struct filterops sig_filtops; static struct filterops *sysfilt_ops[] = { &file_filtops, /* EVFILT_READ */ &file_filtops, /* EVFILT_WRITE */ - &aio_filtops, /* EVFILT_AIO */ + &null_filtops, /* EVFILT_AIO */ &file_filtops, /* EVFILT_VNODE */ &proc_filtops, /* EVFILT_PROC */ &sig_filtops, /* EVFILT_SIGNAL */ @@ -460,6 +469,36 @@ done: } int +kqueue_add_filteropts(int filt, struct filterops *filtops) +{ + + if (filt > 0) + panic("filt(%d) > 0", filt); + if (filt + EVFILT_SYSCOUNT < 0) + panic("filt(%d) + EVFILT_SYSCOUNT(%d) == %d < 0", + filt, EVFILT_SYSCOUNT, filt + EVFILT_SYSCOUNT); + if (sysfilt_ops[~filt] != &null_filtops) + panic("sysfilt_ops[~filt(%d)] != &null_filtops", filt); + sysfilt_ops[~filt] = filtops; + return (0); +} + +int +kqueue_del_filteropts(int filt) +{ + + if (filt > 0) + panic("filt(%d) > 0", filt); + if (filt + EVFILT_SYSCOUNT < 0) + panic("filt(%d) + EVFILT_SYSCOUNT(%d) == %d < 0", + filt, EVFILT_SYSCOUNT, filt + EVFILT_SYSCOUNT); + if (sysfilt_ops[~filt] == &null_filtops) + panic("sysfilt_ops[~filt(%d)] != &null_filtops", filt); + sysfilt_ops[~filt] = &null_filtops; + return (0); +} + +int kqueue_register(struct kqueue *kq, struct kevent *kev, struct thread *td) { struct filedesc *fdp = kq->kq_fdp; |
