Hi, I lately wanted to validate that a connecting&disconnecting to a lambda will not leak the lambda object .. and found that more then that is leaked.
Here is my example: http://paste.ofcode.org/36dmWCT8ddF6Zaqb9csKZNv After the 10million connections are executed and disconnected (all of them a successful), I assume a drop in memory consumption and more importantly a drop of cpu load to close to 0%. I see neither one nor the other. I see continues 100% consume with no memory consumption drop what so ever. I did a quick peak into QMetaObject::activate and it seems no clean up happened .. the list returned in list = &connectionLists->at(signal_index); (line #3660 in 5.6 checkout from today) seems rather long! (10million?) However all "if (!c->receiver)" shows no receiver and therefor will continue right away .. at least Is this expected? A bug? ... I'm happy to fill a bug report, I just wanted to get some feedback, maybe I'm just doing something wrong Some background: I wanted to check if a single-shot-connection (connection to a signal and disconnect at first execute, using a lambda as slot) would be a feasible thing to do. Greets Thomas _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
