void avahi_s_record_browser_free(AvahiSRecordBrowser *b) {
assert(b);
assert(!b->dead);
b->dead = 1;
b->server->need_browser_cleanup = 1;
browser_cancel(b);
}
static void defer_callback(AVAHI_GCC_UNUSED AvahiTimeEvent *e, void *userdata) {
AvahiSRecordBrowser *b = userdata;
int n = 0;
assert(b);
assert(!b->dead);
/* Remove the defer timeout */
if (b->defer_time_event) {
avahi_time_event_free(b->defer_time_event);
b->defer_time_event = NULL;
}
/* Create initial query */
assert(!b->root_lookup);
b->root_lookup = lookup_add(b, b->interface, b->protocol, b->flags, b->key);
assert(b->root_lookup);
n = lookup_go(b->root_lookup);
if (b->dead)
return;
if (n < 0) {
/* sending of the initial query failed */
avahi_server_set_errno(b->server, AVAHI_ERR_FAILURE);
b->callback(
b, b->interface, b->protocol, AVAHI_BROWSER_FAILURE, NULL,
b->flags & AVAHI_LOOKUP_USE_WIDE_AREA ? AVAHI_LOOKUP_RESULT_WIDE_AREA :
(b->flags & AVAHI_LOOKUP_RESULT_MULTICAST ? AVAHI_LOOKUP_RESULT_MULTICAST : AVAHI_LOOKUP_RESULT_LLMNR),
b->userdata);
browser_cancel(b);
return;
}
/* Tell the client that we're done with the cache */
b->callback(
b, b->interface, b->protocol, AVAHI_BROWSER_CACHE_EXHAUSTED, NULL,
b->flags & AVAHI_LOOKUP_USE_WIDE_AREA ? AVAHI_LOOKUP_RESULT_WIDE_AREA :
(b->flags & AVAHI_LOOKUP_RESULT_MULTICAST ? AVAHI_LOOKUP_RESULT_MULTICAST : AVAHI_LOOKUP_RESULT_LLMNR),
b->userdata);
if (!b->dead && b->root_lookup &&
(b->root_lookup->flags & AVAHI_LOOKUP_USE_WIDE_AREA) &&
n > 0 ) {
/* If we do wide area lookups and the the cache contained
* entries, we assume that it is complete, and tell the user
* so by firing ALL_FOR_NOW. */
b->callback(b, b->interface, b->protocol, AVAHI_BROWSER_ALL_FOR_NOW, NULL, AVAHI_LOOKUP_RESULT_LLMNR, b->userdata);
}
}
void avahi_s_record_browser_destroy(AvahiSRecordBrowser *b) {
assert(b);
browser_cancel(b);
AVAHI_LLIST_REMOVE(AvahiSRecordBrowser, browser, b->server->record_browsers, b);
avahi_key_unref(b->key);
avahi_free(b);
}
void avahi_s_record_browser_restart(AvahiSRecordBrowser *b) {
assert(b);
assert(!b->dead);
browser_cancel(b);
/* Request a new iteration of the cache scanning */
if (!b->defer_time_event) {
b->defer_time_event = avahi_time_event_new(b->server->time_event_queue, NULL, defer_callback, b);
assert(b->defer_time_event);
}
}
