Implement parsing for proprietary events (complex-event-type) (#420)

* Implement parsing for proprietary events (complex-event-type)

* Fix unit test linking for event.c
---------

Co-authored-by: Steve Karg <skarg@users.sourceforge.net>

src/bacnet/event.h

@@ -48,6 +48,20 @@ typedef enum {
 ** Based on UnconfirmedEventNotification-Request
 */
 
+
+// TODO make these configurable from env?
+
+/** Enable decoding of complex-event-type property-values. If set to 0, the values are decoded and discarded. */
+#ifndef BACNET_DECODE_COMPLEX_EVENT_TYPE_PARAMETERS
+#define BACNET_DECODE_COMPLEX_EVENT_TYPE_PARAMETERS 1
+#endif
+
+/** Max complex-event-type property-values to decode. Events with more values fail to decode. */
+#ifndef BACNET_COMPLEX_EVENT_TYPE_MAX_PARAMETERS
+#define BACNET_COMPLEX_EVENT_TYPE_MAX_PARAMETERS 5
+#endif
+
+
 typedef struct BACnet_Event_Notification_Data {
     uint32_t processIdentifier;
     BACNET_OBJECT_ID initiatingObjectIdentifier;
@@ -168,6 +182,14 @@ typedef struct BACnet_Event_Notification_Data {
             /* OPTIONAL - Set authenticationFactor.format_type to
                AUTHENTICATION_FACTOR_MAX if not being used */
         } accessEvent;
+#if (BACNET_DECODE_COMPLEX_EVENT_TYPE_PARAMETERS == 1)
+        /*
+         * complex-event-type - a sequence of values, used for proprietary event types
+         */
+        struct {
+            BACNET_PROPERTY_VALUE values[BACNET_COMPLEX_EVENT_TYPE_MAX_PARAMETERS];
+        } complexEventType;
+#endif
     } notificationParams;
 } BACNET_EVENT_NOTIFICATION_DATA;