/*
* call-seq:
* mq.notify = signal => signal
*
* Registers the notification request to deliver a given +signal+
* to the current process when message is received.
* If +signal+ is +nil+, it will unregister and disable the notification
* request to allow other processes to register a request.
* If +signal+ is +false+, it will register a no-op notification request
* which will prevent other processes from registering a notification.
* If +signal+ is an +IO+ object, it will spawn a thread upon the
* arrival of the next message and write one "\\0" byte to the file
* descriptor belonging to that IO object.
* Only one process may have a notification request for a queue
* at a time, Errno::EBUSY will be raised if there is already
* a notification request registration for the queue.
*
* Notifications are only fired once and processes must reregister
* for subsequent notifications.
*
* For readers of the mq_notify(3) manpage, passing +false+
* is equivalent to SIGEV_NONE, and passing +nil+ is equivalent
* of passing a NULL notification pointer to mq_notify(3).
*/
static VALUE setnotify(VALUE self, VALUE arg)
{
struct posix_mq *mq = get(self, 1);
struct sigevent not;
struct sigevent * notification = ¬
VALUE rv = arg;
notify_cleanup(self);
not.sigev_notify = SIGEV_SIGNAL;
switch (TYPE(arg)) {
case T_FALSE:
not.sigev_notify = SIGEV_NONE;
break;
case T_NIL:
notification = NULL;
break;
case T_FIXNUM:
not.sigev_signo = NUM2INT(arg);
break;
case T_SYMBOL:
case T_STRING:
not.sigev_signo = lookup_sig(arg);
rv = INT2NUM(not.sigev_signo);
break;
default:
rb_raise(rb_eArgError, "must be a signal or nil");
}
my_mq_notify(mq->des, notification);
return rv;
}
/**
* Clean up zone.
*
*/
void
zone_cleanup(zone_type* zone)
{
allocator_type* allocator;
lock_basic_type zone_lock;
lock_basic_type xfr_lock;
if (!zone) {
return;
}
allocator = zone->allocator;
zone_lock = zone->zone_lock;
xfr_lock = zone->xfr_lock;
ldns_rdf_deep_free(zone->apex);
adapter_cleanup(zone->adinbound);
adapter_cleanup(zone->adoutbound);
namedb_cleanup(zone->db);
ixfr_cleanup(zone->ixfr);
xfrd_cleanup(zone->xfrd);
notify_cleanup(zone->notify);
signconf_cleanup(zone->signconf);
stats_cleanup(zone->stats);
allocator_deallocate(allocator, (void*) zone->notify_command);
allocator_deallocate(allocator, (void*) zone->notify_args);
allocator_deallocate(allocator, (void*) zone->policy_name);
allocator_deallocate(allocator, (void*) zone->signconf_filename);
allocator_deallocate(allocator, (void*) zone->name);
allocator_deallocate(allocator, (void*) zone);
allocator_cleanup(allocator);
lock_basic_destroy(&xfr_lock);
lock_basic_destroy(&zone_lock);
return;
}
/**
* Update DNS configuration for zone.
*
*/
static int
dnsconfig_zone(engine_type* engine, zone_type* zone)
{
int numdns = 0;
ods_log_assert(engine);
ods_log_assert(engine->xfrhandler);
ods_log_assert(engine->xfrhandler->netio);
ods_log_assert(zone);
ods_log_assert(zone->adinbound);
ods_log_assert(zone->adoutbound);
ods_log_assert(zone->name);
if (zone->adinbound->type == ADAPTER_DNS) {
/* zone transfer handler */
if (!zone->xfrd) {
ods_log_debug("[%s] add transfer handler for zone %s",
engine_str, zone->name);
zone->xfrd = xfrd_create((void*) engine->xfrhandler,
(void*) zone);
ods_log_assert(zone->xfrd);
netio_add_handler(engine->xfrhandler->netio,
&zone->xfrd->handler);
} else if (!zone->xfrd->serial_disk_acquired) {
xfrd_set_timer_now(zone->xfrd);
}
numdns++;
} else if (zone->xfrd) {
netio_remove_handler(engine->xfrhandler->netio,
&zone->xfrd->handler);
xfrd_cleanup(zone->xfrd);
zone->xfrd = NULL;
}
if (zone->adoutbound->type == ADAPTER_DNS) {
/* notify handler */
if (!zone->notify) {
ods_log_debug("[%s] add notify handler for zone %s",
engine_str, zone->name);
zone->notify = notify_create((void*) engine->xfrhandler,
(void*) zone);
ods_log_assert(zone->notify);
netio_add_handler(engine->xfrhandler->netio,
&zone->notify->handler);
}
numdns++;
} else if (zone->notify) {
netio_remove_handler(engine->xfrhandler->netio,
&zone->notify->handler);
notify_cleanup(zone->notify);
zone->notify = NULL;
}
return numdns;
}
/**
* Create notify structure.
*
*/
notify_type*
notify_create(void* xfrhandler, void* zone)
{
notify_type* notify = NULL;
allocator_type* allocator = NULL;
if (!xfrhandler || !zone) {
return NULL;
}
allocator = allocator_create(malloc, free);
if (!allocator) {
ods_log_error("[%s] unable to create notify structure: "
"allocator_create() failed", notify_str);
return NULL;
}
notify = (notify_type*) allocator_alloc(allocator, sizeof(notify_type));
if (!notify) {
ods_log_error("[%s] unable to create notify structure: "
" allocator_alloc() failed", notify_str);
allocator_cleanup(allocator);
return NULL;
}
notify->allocator = allocator;
notify->zone = zone;
notify->xfrhandler = xfrhandler;
notify->waiting_next = NULL;
notify->secondary = NULL;
notify->soa = NULL;
notify->tsig_rr = tsig_rr_create(allocator);
if (!notify->tsig_rr) {
notify_cleanup(notify);
return NULL;
}
notify->retry = 0;
notify->query_id = 0;
notify->is_waiting = 0;
notify->handler.fd = -1;
notify->timeout.tv_sec = 0;
notify->timeout.tv_nsec = 0;
notify->handler.timeout = NULL;
notify->handler.user_data = notify;
notify->handler.event_types =
NETIO_EVENT_READ|NETIO_EVENT_TIMEOUT;
notify->handler.event_handler = notify_handle_zone;
return notify;
}
static void
kill_server_callback (server * serv)
{
serv->cleanup (serv);
serv_list = g_slist_remove (serv_list, serv);
dcc_notify_kill (serv);
serv->flush_queue (serv);
free_away_messages (serv);
free (serv->nick_modes);
free (serv->nick_prefixes);
free (serv->chanmodes);
free (serv->chantypes);
if (serv->bad_nick_prefixes)
free (serv->bad_nick_prefixes);
if (serv->last_away_reason)
free (serv->last_away_reason);
if (serv->eom_cmd)
free (serv->eom_cmd);
if (serv->username)
free (serv->username);
if (serv->realname)
free (serv->realname);
if (serv->networkname)
free (serv->networkname);
if (serv->encoding)
free (serv->encoding);
fe_server_callback (serv);
free (serv);
notify_cleanup ();
}
