Migrate PeerStatus events to stasis, add stasis endpoints, and add chan_pjsip device state.

(closes issue ASTERISK-21489)
(closes issue ASTERISK-21503)

Review: https://reviewboard.asterisk.org/r/2601/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@392538 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 104 insertions, 0 deletions

diff --git a/main/manager_endpoints.c b/main/manager_endpoints.c
new file mode 100644
index 000000000..1a36424af
--- /dev/null
+++ b/main/manager_endpoints.c
@@ -0,0 +1,104 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2013, Digium, Inc.
+ *
+ * Joshua Colp <jcolp@digium.com>
+ * David M. Lee, II <dlee@digium.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file
+ *
+ * \brief The Asterisk Management Interface - AMI (endpoint handling)
+ *
+ * \author Joshua Colp <jcolp@digium.com>
+ * \author David M. Lee, II <dlee@digium.com>
+ *
+  */
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+
+#include "asterisk/callerid.h"
+#include "asterisk/channel.h"
+#include "asterisk/manager.h"
+#include "asterisk/stasis_message_router.h"
+#include "asterisk/pbx.h"
+#include "asterisk/stasis_endpoints.h"
+
+static struct stasis_message_router *endpoint_router;
+
+/*! \brief The \ref stasis subscription returned by the forwarding of the endpoint topic
+ * to the manager topic
+ */
+static struct stasis_subscription *topic_forwarder;
+
+static void manager_endpoints_shutdown(void)
+{
+	stasis_message_router_unsubscribe_and_join(endpoint_router);
+	endpoint_router = NULL;
+
+	stasis_unsubscribe(topic_forwarder);
+	topic_forwarder = NULL;
+}
+
+int manager_endpoints_init(void)
+{
+	struct stasis_topic *manager_topic;
+	struct stasis_topic *endpoint_topic;
+	struct stasis_message_router *message_router;
+	int ret = 0;
+
+	if (endpoint_router) {
+		/* Already initialized */
+		return 0;
+	}
+
+	ast_register_atexit(manager_endpoints_shutdown);
+
+	manager_topic = ast_manager_get_topic();
+	if (!manager_topic) {
+		return -1;
+	}
+	message_router = ast_manager_get_message_router();
+	if (!message_router) {
+		return -1;
+	}
+	endpoint_topic = stasis_caching_get_topic(ast_endpoint_topic_all_cached());
+	if (!endpoint_topic) {
+		return -1;
+	}
+
+	topic_forwarder = stasis_forward_all(endpoint_topic, manager_topic);
+	if (!topic_forwarder) {
+		return -1;
+	}
+
+	endpoint_router = stasis_message_router_create(endpoint_topic);
+
+	if (!endpoint_router) {
+		return -1;
+	}
+
+	/* If somehow we failed to add any routes, just shut down the whole
+	 * thing and fail it.
+	 */
+	if (ret) {
+		manager_endpoints_shutdown();
+		return -1;
+	}
+
+	return 0;
+}
+