static void
vca_kev(const struct kevent *kp)
{
int i, j;
struct sess *sp;
struct sess *ss[NKEV];
AN(kp->udata);
if (kp->udata == vca_pipes) {
j = 0;
i = read(vca_pipes[0], ss, sizeof ss);
if (i == -1 && errno == EAGAIN)
return;
while (i >= sizeof ss[0]) {
CHECK_OBJ_NOTNULL(ss[j], SESS_MAGIC);
assert(ss[j]->sp_fd >= 0);
AZ(ss[j]->obj);
VTAILQ_INSERT_TAIL(&sesshead, ss[j], list);
vca_kq_sess(ss[j], EV_ADD | EV_ONESHOT);
j++;
i -= sizeof ss[0];
}
assert(i == 0);
return;
}
CAST_OBJ_NOTNULL(sp, kp->udata, SESS_MAGIC);
DSL(0x04, SLT_Debug, sp->id, "KQ: sp %p kev data %lu flags 0x%x%s",
sp, (unsigned long)kp->data, kp->flags,
(kp->flags & EV_EOF) ? " EOF" : "");
assert(sp->id == kp->ident);
assert(sp->sp_fd == sp->id);
if (kp->data > 0) {
i = HTC_Rx(sp->htc);
if (i == 0) {
vca_kq_sess(sp, EV_ADD | EV_ONESHOT);
return; /* more needed */
}
VTAILQ_REMOVE(&sesshead, sp, list);
vca_handover(sp, i);
return;
} else if (kp->flags & EV_EOF) {
VTAILQ_REMOVE(&sesshead, sp, list);
vca_close_session(sp, "EOF");
SES_Delete(sp);
return;
} else {
VSL(SLT_Debug, sp->id, "KQ: sp %p kev data %lu flags 0x%x%s",
sp, (unsigned long)kp->data, kp->flags,
(kp->flags & EV_EOF) ? " EOF" : "");
}
}
static inline void
vca_port_ev(port_event_t *ev) {
struct sess *sp;
if(ev->portev_source == PORT_SOURCE_USER) {
CAST_OBJ_NOTNULL(sp, ev->portev_user, SESS_MAGIC);
assert(sp->fd >= 0);
AZ(sp->obj);
VTAILQ_INSERT_TAIL(&sesshead, sp, list);
vca_add(sp->fd, sp);
} else {
int i;
assert(ev->portev_source == PORT_SOURCE_FD);
CAST_OBJ_NOTNULL(sp, ev->portev_user, SESS_MAGIC);
assert(sp->fd >= 0);
if(ev->portev_events & POLLERR) {
vca_del(sp->fd);
VTAILQ_REMOVE(&sesshead, sp, list);
vca_close_session(sp, "EOF");
SES_Delete(sp);
return;
}
i = HTC_Rx(sp->htc);
if (i == 0) {
/* incomplete header, wait for more data */
vca_add(sp->fd, sp);
return;
}
/*
* note: the original man page for port_associate(3C) states:
*
* When an event for a PORT_SOURCE_FD object is retrieved,
* the object no longer has an association with the port.
*
* This can be read along the lines of sparing the
* port_dissociate after port_getn(), but in fact,
* port_dissociate should be used
*
* Ref: http://opensolaris.org/jive/thread.jspa?threadID=129476&tstart=0
*/
vca_del(sp->fd);
VTAILQ_REMOVE(&sesshead, sp, list);
/* vca_handover will also handle errors */
vca_handover(sp, i);
}
return;
}
static void
vca_eev(const struct epoll_event *ep)
{
struct sess *ss[NEEV], *sp;
int i, j;
AN(ep->data.ptr);
if (ep->data.ptr == vca_pipes) {
if (ep->events & EPOLLIN || ep->events & EPOLLPRI) {
j = 0;
i = read(vca_pipes[0], ss, sizeof ss);
if (i == -1 && errno == EAGAIN)
return;
while (i >= sizeof ss[0]) {
CHECK_OBJ_NOTNULL(ss[j], SESS_MAGIC);
assert(ss[j]->fd >= 0);
AZ(ss[j]->obj);
VTAILQ_INSERT_TAIL(&sesshead, ss[j], list);
vca_cond_modadd(ss[j]->fd, ss[j]);
j++;
i -= sizeof ss[0];
}
assert(i == 0);
}
} else {
CAST_OBJ_NOTNULL(sp, ep->data.ptr, SESS_MAGIC);
if (ep->events & EPOLLIN || ep->events & EPOLLPRI) {
i = HTC_Rx(sp->htc);
if (i == 0) {
vca_modadd(sp->fd, sp, EPOLL_CTL_MOD);
return; /* more needed */
}
VTAILQ_REMOVE(&sesshead, sp, list);
vca_handover(sp, i);
} else if (ep->events & EPOLLERR) {
VTAILQ_REMOVE(&sesshead, sp, list);
vca_close_session(sp, "ERR");
SES_Delete(sp);
} else if (ep->events & EPOLLHUP) {
VTAILQ_REMOVE(&sesshead, sp, list);
vca_close_session(sp, "HUP");
SES_Delete(sp);
} else if (ep->events & EPOLLRDHUP) {
VTAILQ_REMOVE(&sesshead, sp, list);
vca_close_session(sp, "RHUP");
SES_Delete(sp);
}
}
}
