static int
cttykqfilter(struct dev_kqfilter_args *ap)
{
cdev_t dev = ap->a_head.a_dev;
struct proc *p = curproc;
struct knote *kn = ap->a_kn;
struct vnode *ttyvp;
KKASSERT(p);
ttyvp = cttyvp(p);
if (ttyvp != NULL)
return (VOP_KQFILTER(ttyvp, kn));
ap->a_result = 0;
switch (kn->kn_filter) {
case EVFILT_READ:
kn->kn_fop = &cttyfiltops_read;
kn->kn_hook = (caddr_t)dev;
break;
case EVFILT_WRITE:
kn->kn_fop = &cttyfiltops_write;
kn->kn_hook = (caddr_t)dev;
break;
default:
ap->a_result = EOPNOTSUPP;
return (0);
}
return (0);
}
/*
* MPSAFE
*/
static int
vn_kqfilter(struct file *fp, struct knote *kn)
{
int error;
error = VOP_KQFILTER(((struct vnode *)fp->f_data), kn);
return (error);
}
int
cttykqfilter(dev_t dev, struct knote *kn)
{
struct vnode *ttyvp = cttyvp(curproc);
if (ttyvp == NULL)
return (ENXIO);
return (VOP_KQFILTER(ttyvp, kn));
}
static int
cttykqfilter(dev_t dev, struct knote *kn)
{
/* This is called from filt_fileattach() by the attaching process. */
struct proc *p = curproc;
struct vnode *ttyvp = cttyvp(p);
if (ttyvp == NULL)
return (1);
return (VOP_KQFILTER(ttyvp, kn));
}
static int
unionfs_kqfilter(void *v)
{
struct vop_kqfilter_args *ap = v;
struct unionfs_node *unp;
struct vnode *tvp;
unp = VTOUNIONFS(ap->a_vp);
tvp = (unp->un_uppervp != NULLVP ? unp->un_uppervp : unp->un_lowervp);
return VOP_KQFILTER(tvp, ap->a_kn);
}
int
RUMP_VOP_KQFILTER(struct vnode *vp,
struct knote *kn)
{
int error;
rump_schedule();
error = VOP_KQFILTER(vp, kn);
rump_unschedule();
return error;
}
int
vn_kqfilter(struct file *fp, struct knote *kn)
{
return (VOP_KQFILTER(((struct vnode *)fp->f_data), kn));
}
/*
* File table vnode kqfilter routine.
*/
int
vn_kqfilter(file_t *fp, struct knote *kn)
{
return (VOP_KQFILTER(fp->f_data, kn));
}
