Fix heart beat

See merge request !60

coupler/keep_alive.h

@@ -56,8 +56,8 @@ const int DEFAULT_HEART_BEAT_TIMEOUT_INTERVAL = 4 * DEFAULT_HEART_BEAT_INTERVAL;
 static int HEART_BEAT_TIMEOUT_INTERVAL = DEFAULT_HEART_BEAT_TIMEOUT_INTERVAL;
 
 // the list of couplers onto which we depend for properly running
-// XXX: assume ONLY 8 couplers!
-unsigned int HEART_BEAT_ID_LIST[] = {0, 0, 0, 0, 0, 0, 0, 0};
+// assume maximum of 127 couplers!
+unsigned int HEART_BEAT_ID_LIST[127] = {0};
 
 // the interval for publishing messages
 static int PUBLISHING_INTERVAL = 10;

coupler/mod_io_opc_ua.h

@@ -471,7 +471,8 @@ static void addValueCallbackToCurrentTimeVariable(UA_Server *server)
     int device_number, offset_number;
     char *node_id = malloc(sizeof(char) * 10);
 
-    // list of relays, digital and analog callbacks for all devices (XXX: for now only 4 out of 127 possible!)
+    // list of relays, digital and analog callbacks for all devices
+    // XXX: for now only 4 out of 127 added!
     static void (*callables[40])
                                  (UA_Server *server, const UA_NodeId *sessionId, void *sessionContext,
                                   const UA_NodeId *nodeId, void *nodeContext, const UA_NumericRange *range,