Migrate a large number of AMI events over to Stasis-Core

This patch moves a number of AMI events over to the Stasis-Core message bus.
This includes:
 * ChanSpyStart/Stop
 * MonitorStart/Stop
 * MusicOnHoldStart/Stop
 * FullyBooted/Reload
 * All Voicemail/MWI related events

In addition, it adds some Stasis-Core and AMI support for generic AMI messages,
refactors the message router in AMI to use a single router with topic
forwarding for the topics that AMI cares about, and refactors MWI message
types and topics to be more name compliant.

Review: https://reviewboard.asterisk.org/r/2532

(closes issue ASTERISK-21462)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@389733 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 7 insertions, 0 deletions

diff --git a/main/json.c b/main/json.c
index 5b69ccbaa..70830bd13 100644
--- a/main/json.c
+++ b/main/json.c
@@ -78,6 +78,9 @@ struct ast_json *ast_json_ref(struct ast_json *json)
 
 void ast_json_unref(struct ast_json *json)
 {
+	if (!json) {
+		return;
+	}
 	json_decref((json_t *)json);
 }
 
@@ -327,6 +330,10 @@ const char *ast_json_object_iter_key(struct ast_json_iter *iter)
 {
 	return json_object_iter_key(iter);
 }
+struct ast_json_iter *ast_json_object_key_to_iter(const char *key)
+{
+	return (struct ast_json_iter *)json_object_key_to_iter(key);
+}
 struct ast_json *ast_json_object_iter_value(struct ast_json_iter *iter)
 {
 	return (struct ast_json *)json_object_iter_value(iter);