--- /dev/null
+/*
+ * AVAHI service publisher
+ * Copyright (C) 2009 Andreas Öman
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/***
+ 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.
+***/
+
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include <avahi-client/client.h>
+#include <avahi-client/publish.h>
+
+#include <avahi-common/alternative.h>
+#include <avahi-common/simple-watch.h>
+#include <avahi-common/malloc.h>
+#include <avahi-common/error.h>
+#include <avahi-common/timeval.h>
+
+#include "tvhead.h"
+#include "avahi.h"
+
+static AvahiEntryGroup *group = NULL;
+static char *name = NULL;
+
+static void create_services(AvahiClient *c);
+
+static void
+entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state,
+ void *userdata)
+{
+ assert(g == group || group == NULL);
+ group = g;
+
+ /* Called whenever the entry group state changes */
+
+ switch (state) {
+ case AVAHI_ENTRY_GROUP_ESTABLISHED :
+ /* The entry group has been established successfully */
+ tvhlog(LOG_INFO, "AVAHI",
+ "Service '%s' successfully established.", name);
+ break;
+
+ case AVAHI_ENTRY_GROUP_COLLISION : {
+ char *n;
+
+ /* A service name collision with a remote service
+ * happened. Let's pick a new name */
+ n = avahi_alternative_service_name(name);
+ avahi_free(name);
+ name = n;
+
+ tvhlog(LOG_ERR, "AVAHI",
+ "Service name collision, renaming service to '%s'", name);
+
+ /* And recreate the services */
+ create_services(avahi_entry_group_get_client(g));
+ break;
+ }
+
+ case AVAHI_ENTRY_GROUP_FAILURE :
+ tvhlog(LOG_ERR, "AVAHI",
+ "Entry group failure: %s",
+ avahi_strerror(avahi_client_errno(avahi_entry_group_get_client(g))));
+ break;
+
+ case AVAHI_ENTRY_GROUP_UNCOMMITED:
+ case AVAHI_ENTRY_GROUP_REGISTERING:
+ ;
+ }
+}
+
+
+/**
+ *
+ */
+static void
+create_services(AvahiClient *c)
+{
+ char *n;
+ int ret;
+ assert(c);
+
+ /* If this is the first time we're called, let's create a new
+ * entry group if necessary */
+
+ if (!group)
+ if (!(group = avahi_entry_group_new(c, entry_group_callback, NULL))) {
+ tvhlog(LOG_ERR, "AVAHI",
+ "avahi_enty_group_new() failed: %s",
+ avahi_strerror(avahi_client_errno(c)));
+ goto fail;
+ }
+
+ /* If the group is empty (either because it was just created, or
+ * because it was reset previously, add our entries. */
+
+ if (avahi_entry_group_is_empty(group)) {
+ tvhlog(LOG_DEBUG, "AVAHI", "Adding service '%s'", name);
+
+ /* Add the service for IPP */
+ if ((ret = avahi_entry_group_add_service(group, AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC, 0, name,
+ "_htsp._tcp", NULL, NULL, 9982,
+ NULL)) < 0) {
+
+ if (ret == AVAHI_ERR_COLLISION)
+ goto collision;
+
+ tvhlog(LOG_ERR, "AVAHI",
+ "Failed to add _htsp._tcp service: %s",
+ avahi_strerror(ret));
+ goto fail;
+ }
+
+ /* Tell the server to register the service */
+ if ((ret = avahi_entry_group_commit(group)) < 0) {
+ tvhlog(LOG_ERR, "AVAHI",
+ "Failed to commit entry group: %s",
+ avahi_strerror(ret));
+ goto fail;
+ }
+ }
+
+ return;
+
+ collision:
+
+ /* A service name collision with a local service happened. Let's
+ * pick a new name */
+ n = avahi_alternative_service_name(name);
+ avahi_free(name);
+ name = n;
+
+ tvhlog(LOG_ERR, "AVAHI",
+ "Service name collision, renaming service to '%s'", name);
+
+ avahi_entry_group_reset(group);
+
+ create_services(c);
+ return;
+
+ fail:
+ return;
+}
+
+
+/**
+ *
+ */
+static void
+client_callback(AvahiClient *c, AvahiClientState state, void *userdata)
+{
+ assert(c);
+
+ /* Called whenever the client or server state changes */
+
+ switch (state) {
+ case AVAHI_CLIENT_S_RUNNING:
+
+ /* The server has startup successfully and registered its host
+ * name on the network, so it's time to create our services */
+ create_services(c);
+ break;
+
+ case AVAHI_CLIENT_FAILURE:
+ tvhlog(LOG_ERR, "AVAHI", "Client failure: %s",
+ avahi_strerror(avahi_client_errno(c)));
+ break;
+
+ case AVAHI_CLIENT_S_COLLISION:
+
+ /* Let's drop our registered services. When the server is back
+ * in AVAHI_SERVER_RUNNING state we will register them
+ * again with the new host name. */
+
+ case AVAHI_CLIENT_S_REGISTERING:
+
+ /* The server records are now being established. This
+ * might be caused by a host name change. We need to wait
+ * for our own records to register until the host name is
+ * properly esatblished. */
+
+ if(group)
+ avahi_entry_group_reset(group);
+
+ break;
+
+ case AVAHI_CLIENT_CONNECTING:
+ ;
+ }
+}
+
+
+/**
+ *
+ */
+static void *
+avahi_thread(void *aux)
+{
+ AvahiSimplePoll *asp = avahi_simple_poll_new();
+ const AvahiPoll *ap = avahi_simple_poll_get(asp);
+
+ name = avahi_strdup("Tvheadend");
+
+ avahi_client_new(ap, AVAHI_CLIENT_NO_FAIL, client_callback, NULL, NULL);
+
+ while((avahi_simple_poll_iterate(asp, -1)) != -1) {}
+
+ return NULL;
+
+
+}
+
+/**
+ *
+ */
+void
+avahi_init(void)
+{
+ pthread_t tid;
+
+ pthread_create(&tid, NULL, avahi_thread, NULL);
+}
projects / thirdparty / tvheadend.git / commitdiff
