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-rw-r--r--libavahi-core/announce.c422
1 files changed, 0 insertions, 422 deletions
diff --git a/libavahi-core/announce.c b/libavahi-core/announce.c
deleted file mode 100644
index dbad6c7..0000000
--- a/libavahi-core/announce.c
+++ /dev/null
@@ -1,422 +0,0 @@
-/* $Id$ */
-
-/***
- This file is part of avahi.
-
- avahi is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as
- published by the Free Software Foundation; either version 2.1 of the
- License, or (at your option) any later version.
-
- avahi is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
- Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with avahi; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- USA.
-***/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "announce.h"
-#include "util.h"
-
-#define AVAHI_ANNOUNCEMENT_JITTER_MSEC 250
-#define AVAHI_PROBE_JITTER_MSEC 250
-#define AVAHI_PROBE_INTERVAL_MSEC 250
-
-static void remove_announcement(AvahiServer *s, AvahiAnnouncement *a) {
- g_assert(s);
- g_assert(a);
-
- if (a->time_event)
- avahi_time_event_queue_remove(s->time_event_queue, a->time_event);
-
- AVAHI_LLIST_REMOVE(AvahiAnnouncement, by_interface, a->interface->announcements, a);
- AVAHI_LLIST_REMOVE(AvahiAnnouncement, by_entry, a->entry->announcements, a);
-
- g_free(a);
-}
-
-static void elapse_announce(AvahiTimeEvent *e, void *userdata);
-
-static void set_timeout(AvahiAnnouncement *a, const GTimeVal *tv) {
- g_assert(a);
-
- if (!tv) {
- if (a->time_event) {
- avahi_time_event_queue_remove(a->server->time_event_queue, a->time_event);
- a->time_event = NULL;
- }
- } else {
-
- if (a->time_event)
- avahi_time_event_queue_update(a->server->time_event_queue, a->time_event, tv);
- else
- a->time_event = avahi_time_event_queue_add(a->server->time_event_queue, tv, elapse_announce, a);
- }
-}
-
-static void next_state(AvahiAnnouncement *a);
-
-void avahi_entry_group_check_probed(AvahiEntryGroup *g, gboolean immediately) {
- AvahiEntry *e;
- g_assert(g);
- g_assert(!g->dead);
-
- /* Check whether all group members have been probed */
-
- if (g->state != AVAHI_ENTRY_GROUP_REGISTERING || g->n_probing > 0)
- return;
-
- avahi_entry_group_change_state(g, AVAHI_ENTRY_GROUP_ESTABLISHED);
-
- if (g->dead)
- return;
-
- for (e = g->entries; e; e = e->entries_next) {
- AvahiAnnouncement *a;
-
- for (a = e->announcements; a; a = a->by_entry_next) {
-
- if (a->state != AVAHI_WAITING)
- continue;
-
- a->state = AVAHI_ANNOUNCING;
-
- if (immediately) {
- /* Shortcut */
-
- a->n_iteration = 1;
- next_state(a);
- } else {
- GTimeVal tv;
- a->n_iteration = 0;
- avahi_elapse_time(&tv, 0, AVAHI_ANNOUNCEMENT_JITTER_MSEC);
- set_timeout(a, &tv);
- }
- }
- }
-}
-
-static void next_state(AvahiAnnouncement *a) {
- g_assert(a);
-
-/* g_message("%i -- %u", a->state, a->n_iteration); */
-
- if (a->state == AVAHI_WAITING) {
-
- g_assert(a->entry->group);
-
- avahi_entry_group_check_probed(a->entry->group, TRUE);
-
- } else if (a->state == AVAHI_PROBING) {
-
- if (a->n_iteration >= 4) {
- /* Probing done */
-
- gchar *t;
-
- g_message("Enough probes for record [%s]", t = avahi_record_to_string(a->entry->record));
- g_free(t);
-
- if (a->entry->group) {
- g_assert(a->entry->group->n_probing);
- a->entry->group->n_probing--;
- }
-
- if (a->entry->group && a->entry->group->state == AVAHI_ENTRY_GROUP_REGISTERING)
- a->state = AVAHI_WAITING;
- else {
- a->state = AVAHI_ANNOUNCING;
- a->n_iteration = 1;
- }
-
- set_timeout(a, NULL);
- next_state(a);
- } else {
- GTimeVal tv;
-
- avahi_interface_post_probe(a->interface, a->entry->record, FALSE);
-
- avahi_elapse_time(&tv, AVAHI_PROBE_INTERVAL_MSEC, 0);
- set_timeout(a, &tv);
-
- a->n_iteration++;
- }
-
- } else if (a->state == AVAHI_ANNOUNCING) {
-
- avahi_interface_post_response(a->interface, NULL, a->entry->record, a->entry->flags & AVAHI_ENTRY_UNIQUE, FALSE);
-
- if (++a->n_iteration >= 4) {
- gchar *t;
- /* Announcing done */
-
- g_message("Enough announcements for record [%s]", t = avahi_record_to_string(a->entry->record));
- g_free(t);
-
- a->state = AVAHI_ESTABLISHED;
-
- set_timeout(a, NULL);
- } else {
- GTimeVal tv;
- avahi_elapse_time(&tv, a->sec_delay*1000, AVAHI_ANNOUNCEMENT_JITTER_MSEC);
-
- if (a->n_iteration < 10)
- a->sec_delay *= 2;
-
- set_timeout(a, &tv);
- }
- }
-}
-
-static void elapse_announce(AvahiTimeEvent *e, void *userdata) {
- g_assert(e);
-
- next_state(userdata);
-}
-
-AvahiAnnouncement *avahi_get_announcement(AvahiServer *s, AvahiEntry *e, AvahiInterface *i) {
- AvahiAnnouncement *a;
-
- g_assert(s);
- g_assert(e);
- g_assert(i);
-
- for (a = e->announcements; a; a = a->by_entry_next)
- if (a->interface == i)
- return a;
-
- return NULL;
-}
-
-static void new_announcement(AvahiServer *s, AvahiInterface *i, AvahiEntry *e) {
- AvahiAnnouncement *a;
- GTimeVal tv;
- gchar *t;
-
- g_assert(s);
- g_assert(i);
- g_assert(e);
- g_assert(!e->dead);
-
-/* g_message("NEW ANNOUNCEMENT: %s.%i [%s]", i->hardware->name, i->protocol, t = avahi_record_to_string(e->record)); */
-/* g_free(t); */
-
- if (!avahi_interface_match(i, e->interface, e->protocol) || !i->announcing || !avahi_entry_commited(e))
- return;
-
- /* We don't want duplicate announcements */
- if (avahi_get_announcement(s, e, i))
- return;
-
- a = g_new(AvahiAnnouncement, 1);
- a->server = s;
- a->interface = i;
- a->entry = e;
-
- if ((e->flags & AVAHI_ENTRY_UNIQUE) && !(e->flags & AVAHI_ENTRY_NOPROBE))
- a->state = AVAHI_PROBING;
- else if (!(e->flags & AVAHI_ENTRY_NOANNOUNCE)) {
-
- if (!e->group || e->group->state == AVAHI_ENTRY_GROUP_ESTABLISHED)
- a->state = AVAHI_ANNOUNCING;
- else
- a->state = AVAHI_WAITING;
-
- } else
- a->state = AVAHI_ESTABLISHED;
-
-
- g_message("New announcement on interface %s.%i for entry [%s] state=%i", i->hardware->name, i->protocol, t = avahi_record_to_string(e->record), a->state);
- g_free(t);
-
- a->n_iteration = 1;
- a->sec_delay = 1;
- a->time_event = NULL;
-
- if (a->state == AVAHI_PROBING)
- if (e->group)
- e->group->n_probing++;
-
- AVAHI_LLIST_PREPEND(AvahiAnnouncement, by_interface, i->announcements, a);
- AVAHI_LLIST_PREPEND(AvahiAnnouncement, by_entry, e->announcements, a);
-
- if (a->state == AVAHI_PROBING) {
- avahi_elapse_time(&tv, 0, AVAHI_PROBE_JITTER_MSEC);
- set_timeout(a, &tv);
- } else if (a->state == AVAHI_ANNOUNCING) {
- avahi_elapse_time(&tv, 0, AVAHI_ANNOUNCEMENT_JITTER_MSEC);
- set_timeout(a, &tv);
- }
-}
-
-void avahi_announce_interface(AvahiServer *s, AvahiInterface *i) {
- AvahiEntry *e;
-
- g_assert(s);
- g_assert(i);
-
- if (!i->announcing)
- return;
-
- for (e = s->entries; e; e = e->entries_next)
- if (!e->dead)
- new_announcement(s, i, e);
-}
-
-static void announce_walk_callback(AvahiInterfaceMonitor *m, AvahiInterface *i, gpointer userdata) {
- AvahiEntry *e = userdata;
-
- g_assert(m);
- g_assert(i);
- g_assert(e);
- g_assert(!e->dead);
-
- new_announcement(m->server, i, e);
-}
-
-void avahi_announce_entry(AvahiServer *s, AvahiEntry *e) {
- g_assert(s);
- g_assert(e);
- g_assert(!e->dead);
-
- avahi_interface_monitor_walk(s->monitor, e->interface, e->protocol, announce_walk_callback, e);
-}
-
-void avahi_announce_group(AvahiServer *s, AvahiEntryGroup *g) {
- AvahiEntry *e;
-
- g_assert(s);
- g_assert(g);
-
- for (e = g->entries; e; e = e->by_group_next)
- if (!e->dead)
- avahi_announce_entry(s, e);
-}
-
-gboolean avahi_entry_registered(AvahiServer *s, AvahiEntry *e, AvahiInterface *i) {
- AvahiAnnouncement *a;
-
- g_assert(s);
- g_assert(e);
- g_assert(i);
- g_assert(!e->dead);
-
- if (!(a = avahi_get_announcement(s, e, i)))
- return FALSE;
-
- return a->state == AVAHI_ANNOUNCING || a->state == AVAHI_ESTABLISHED;
-}
-
-gboolean avahi_entry_registering(AvahiServer *s, AvahiEntry *e, AvahiInterface *i) {
- AvahiAnnouncement *a;
-
- g_assert(s);
- g_assert(e);
- g_assert(i);
- g_assert(!e->dead);
-
- if (!(a = avahi_get_announcement(s, e, i)))
- return FALSE;
-
- return a->state == AVAHI_PROBING || a->state == AVAHI_WAITING;
-}
-
-static AvahiRecord *make_goodbye_record(AvahiRecord *r) {
-/* gchar *t; */
- AvahiRecord *g;
-
- g_assert(r);
-
-/* g_message("Preparing goodbye for record [%s]", t = avahi_record_to_string(r)); */
-/* g_free(t); */
-
- g = avahi_record_copy(r);
- g_assert(g->ref == 1);
- g->ttl = 0;
-
- return g;
-}
-
-static void send_goodbye_callback(AvahiInterfaceMonitor *m, AvahiInterface *i, gpointer userdata) {
- AvahiEntry *e = userdata;
- AvahiRecord *g;
-
- g_assert(m);
- g_assert(i);
- g_assert(e);
- g_assert(!e->dead);
-
- if (!avahi_interface_match(i, e->interface, e->protocol))
- return;
-
- if (e->flags & AVAHI_ENTRY_NOANNOUNCE)
- return;
-
- if (!avahi_entry_registered(m->server, e, i))
- return;
-
- g = make_goodbye_record(e->record);
- avahi_interface_post_response(i, NULL, g, e->flags & AVAHI_ENTRY_UNIQUE, TRUE);
- avahi_record_unref(g);
-}
-
-void avahi_goodbye_interface(AvahiServer *s, AvahiInterface *i, gboolean goodbye) {
- g_assert(s);
- g_assert(i);
-
-/* g_message("goodbye interface: %s.%u", i->hardware->name, i->protocol); */
-
- if (goodbye && avahi_interface_relevant(i)) {
- AvahiEntry *e;
-
- for (e = s->entries; e; e = e->entries_next)
- if (!e->dead)
- send_goodbye_callback(s->monitor, i, e);
- }
-
- while (i->announcements)
- remove_announcement(s, i->announcements);
-
-/* g_message("goodbye interface done: %s.%u", i->hardware->name, i->protocol); */
-
-}
-
-void avahi_goodbye_entry(AvahiServer *s, AvahiEntry *e, gboolean goodbye) {
- g_assert(s);
- g_assert(e);
-
-/* g_message("goodbye entry: %p", e); */
-
- if (goodbye && !e->dead)
- avahi_interface_monitor_walk(s->monitor, 0, AF_UNSPEC, send_goodbye_callback, e);
-
- while (e->announcements)
- remove_announcement(s, e->announcements);
-
-/* g_message("goodbye entry done: %p", e); */
-
-}
-
-void avahi_goodbye_all(AvahiServer *s, gboolean goodbye) {
- AvahiEntry *e;
-
- g_assert(s);
-
-/* g_message("goodbye all"); */
-
- for (e = s->entries; e; e = e->entries_next)
- if (!e->dead)
- avahi_goodbye_entry(s, e, goodbye);
-
-/* g_message("goodbye all done"); */
-
-}
-
generated by cgit (git 2.34.1) at 2025-06-17 23:18:53 +0000