int
ipsc_attachis(struct ipstate *is)
{
frentry_t *fr;
ipscan_t *i;
READ_ENTER(&ipsc_rwlock);
fr = is->is_rule;
if (fr) {
i = fr->fr_isc;
if ((i != NULL) && (i != (ipscan_t *)-1)) {
is->is_isc = i;
ATOMIC_INC32(i->ipsc_sref);
if (i->ipsc_clen)
is->is_flags |= IS_SC_CLIENT;
else
is->is_flags |= IS_SC_MATCHC;
if (i->ipsc_slen)
is->is_flags |= IS_SC_SERVER;
else
is->is_flags |= IS_SC_MATCHS;
}
}
RWLOCK_EXIT(&ipsc_rwlock);
return 0;
}
int
ipsc_attachfr(struct frentry *fr)
{
ipscan_t *i;
if (fr->fr_isctag[0]) {
READ_ENTER(&ipsc_rwlock);
i = ipsc_lookup(fr->fr_isctag);
if (i != NULL) {
ATOMIC_INC32(i->ipsc_fref);
}
RWLOCK_EXIT(&ipsc_rwlock);
if (i == NULL)
return ENOENT;
fr->fr_isc = i;
}
return 0;
}
int
rwfqueue_push (rwfqueue_t *rwfqueue, void *data)
{
if (rwfqueue == NULL)
return -1;
if (data == NULL)
return -2;
if (rwfqueue->size == rwfqueue->count) {
if (rwfqueue->wmode == RWFQUEUE_MODE_NOBLOCK)
return -3;
else {
pthread_mutex_lock(&rwfqueue->lock);
while (!rwfqueue->stop && rwfqueue->size == rwfqueue->count)
pthread_cond_wait(&rwfqueue->cond, &rwfqueue->lock);
pthread_mutex_unlock(&rwfqueue->lock);
}
}
rwfqueue->head->data = data;
rwfqueue->head->inuse = 1;
ATOMIC_INC32(&rwfqueue->count);
if (rwfqueue->head == rwfqueue->last)
rwfqueue->head = rwfqueue->data;
else
rwfqueue->head++;
// send a signal to the reader if there wasn't anything in
// the queue prior to this call to push(), and now there is.
if (rwfqueue->count == 1)
pthread_cond_signal(&rwfqueue->cond);
return 0;
}
