If a queue uses dynamic realtime members, then the member list should be updated after each attempt to call the queue.

This fixes an issue where if a caller calls into a queue where no one is logged in, they would wait forever even if a member
logged in at some point.

(closes issue #10346, reported by and tested by blitzrage, patched by me)



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@77852 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_queue.c

@@ -1167,6 +1167,57 @@ static struct call_queue *load_realtime_queue(const char *queuename)
 	return q;
 }
 
+static void update_realtime_members(struct call_queue *q)
+{
+	struct ast_config *member_config = NULL;
+	struct member *m, *prev_m, *next_m;
+	char *interface = NULL;
+
+	member_config = ast_load_realtime_multientry("queue_members", "interface LIKE", "%", "queue_name", q->name , NULL);
+	if (!member_config) {
+		/*This queue doesn't have realtime members*/
+		if (option_debug > 2)
+			ast_log(LOG_DEBUG, "Queue %s has no realtime members defined. No need for update\n", q->name);
+		return;
+	}
+
+	ast_mutex_lock(&q->lock);
+	
+	/* Temporarily set non-dynamic members dead so we can detect deleted ones.*/ 
+	for (m = q->members; m; m = m->next) {
+		if (!m->dynamic)
+			m->dead = 1;
+	}
+
+	while ((interface = ast_category_browse(member_config, interface))) {
+		rt_handle_member_record(q, interface,
+			S_OR(ast_variable_retrieve(member_config, interface, "membername"), interface),
+			ast_variable_retrieve(member_config, interface, "penalty"),
+			ast_variable_retrieve(member_config, interface, "paused"));
+	}
+
+	/* Delete all realtime members that have been deleted in DB. */
+	m = q->members;
+	prev_m = NULL;
+	while (m) {
+		next_m = m->next;
+		if (m->dead) {
+			if (prev_m) {
+				prev_m->next = next_m;
+			} else {
+				q->members = next_m;
+			}
+			remove_from_interfaces(m->interface);
+			q->membercount--;
+			free(m);
+		} else {
+			prev_m = m;
+		}
+		m = next_m;
+	}
+	ast_mutex_unlock(&q->lock);
+}
+
 static int join_queue(char *queuename, struct queue_ent *qe, enum queue_result *reason)
 {
 	struct call_queue *q;
@@ -3485,6 +3536,9 @@ check_turns:
 				break;
 			}
 
+			/* If using dynamic realtime members, we should regenerate the member list for this queue */
+			update_realtime_members(qe.parent);
+
 			/* OK, we didn't get anybody; wait for 'retry' seconds; may get a digit to exit with */
 			res = wait_a_bit(&qe);
 			if (res)