static void *
vwk_thread(void *priv)
{
struct vwk *vwk;
struct kevent ke[NKEV], *kp;
int j, n, dotimer;
double deadline;
struct sess *sp;
CAST_OBJ_NOTNULL(vwk, priv, VWK_MAGIC);
THR_SetName("cache-kqueue");
vwk->kq = kqueue();
assert(vwk->kq >= 0);
j = 0;
EV_SET(&ke[j], 0, EVFILT_TIMER, EV_ADD, 0, 100, NULL);
j++;
EV_SET(&ke[j], vwk->pipes[0], EVFILT_READ, EV_ADD, 0, 0, vwk->pipes);
j++;
AZ(kevent(vwk->kq, ke, j, NULL, 0, NULL));
vwk->nki = 0;
while (1) {
dotimer = 0;
n = kevent(vwk->kq, vwk->ki, vwk->nki, ke, NKEV, NULL);
assert(n >= 1 && n <= NKEV);
vwk->nki = 0;
for (kp = ke, j = 0; j < n; j++, kp++) {
if (kp->filter == EVFILT_TIMER) {
dotimer = 1;
continue;
}
assert(kp->filter == EVFILT_READ);
vwk_kev(vwk, kp);
}
if (!dotimer)
continue;
/*
* Make sure we have no pending changes for the fd's
* we are about to close, in case the accept(2) in the
* other thread creates new fd's betwen our close and
* the kevent(2) at the top of this loop, the kernel
* would not know we meant "the old fd of this number".
*/
vwk_kq_flush(vwk);
deadline = VTIM_real() - params->sess_timeout;
for (;;) {
sp = VTAILQ_FIRST(&vwk->sesshead);
if (sp == NULL)
break;
if (sp->t_open > deadline)
break;
VTAILQ_REMOVE(&vwk->sesshead, sp, list);
// XXX: not yet (void)VTCP_linger(sp->fd, 0);
SES_Delete(sp, "timeout");
}
}
}
static void
vwk_kq_sess(struct vwk *vwk, struct sess *sp, short arm)
{
CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
assert(sp->fd >= 0);
DSL(DBG_WAITER, sp->vxid, "KQ: EV_SET sp %p arm %x", sp, arm);
EV_SET(&vwk->ki[vwk->nki], sp->fd, EVFILT_READ, arm, 0, 0, sp);
if (++vwk->nki == NKEV)
vwk_kq_flush(vwk);
}
static void *
vwk_thread(void *priv)
{
struct vwk *vwk;
struct kevent ke[NKEV], *kp;
int j, n, dotimer;
double now, deadline;
struct sess *sp;
CAST_OBJ_NOTNULL(vwk, priv, VWK_MAGIC);
THR_SetName("cache-kqueue");
vwk->kq = kqueue();
assert(vwk->kq >= 0);
j = 0;
EV_SET(&ke[j], 0, EVFILT_TIMER, EV_ADD, 0, 100, NULL);
j++;
EV_SET(&ke[j], vwk->pipes[0], EVFILT_READ, EV_ADD, 0, 0, vwk->pipes);
j++;
AZ(kevent(vwk->kq, ke, j, NULL, 0, NULL));
vwk->nki = 0;
while (1) {
dotimer = 0;
n = kevent(vwk->kq, vwk->ki, vwk->nki, ke, NKEV, NULL);
now = VTIM_real();
assert(n <= NKEV);
if (n == 0) {
/* This happens on OSX in m00011.vtc */
dotimer = 1;
(void)usleep(10000);
}
vwk->nki = 0;
for (kp = ke, j = 0; j < n; j++, kp++) {
if (kp->filter == EVFILT_TIMER) {
dotimer = 1;
} else if (kp->filter == EVFILT_READ &&
kp->udata == vwk->pipes) {
vwk_pipe_ev(vwk, kp);
} else {
assert(kp->filter == EVFILT_READ);
vwk_sess_ev(vwk, kp, now);
}
}
if (!dotimer)
continue;
/*
* Make sure we have no pending changes for the fd's
* we are about to close, in case the accept(2) in the
* other thread creates new fd's betwen our close and
* the kevent(2) at the top of this loop, the kernel
* would not know we meant "the old fd of this number".
*/
vwk_kq_flush(vwk);
deadline = now - cache_param->timeout_idle;
for (;;) {
sp = VTAILQ_FIRST(&vwk->sesshead);
if (sp == NULL)
break;
if (sp->t_idle > deadline)
break;
VTAILQ_REMOVE(&vwk->sesshead, sp, list);
// XXX: not yet (void)VTCP_linger(sp->fd, 0);
SES_Delete(sp, SC_RX_TIMEOUT, now);
}
}
NEEDLESS_RETURN(NULL);
}
