Re: [gtk-osx-users] Memory leaks after toplevel window is destroyed

[John Ralls <jralls ceridwen us>]

On Jul 1, 2013, at 2:12 AM, Andrius <andriusr yahoo com> wrote:

> Hi all,
> Working on Bluefish port to OSX, using gtk+3.6.4, gtk-mac-integration 2.0.1 on MacOSX 10.8.4. I
>
> When using gtk-osx, I noticed that after toplevel window is created with menubar and then destroyed, leaks 
> shows large number of of memory leaks (typically ~1500, probably it depends on complexity of menubar), most 
> likely related to the app menubar. Below is small excerpt from leaks output:
>
> Leak: 0x7febae111ea0  size=128  zone: DefaultMallocZone_0x1061b6000   _GNSMenuItem  ObjC  
> libgtkmacintegration.2.dylib
>     0x06226e48 0x00000001 0x00000000 0x00000000     Hn".............
>     0xae111d00 0x00007feb 0x06226e70 0x00000001     ........pn".....
>     0x00000000 0x00000000 0x00000000 0x00000000     ................
>     0xae112160 0x00007feb 0x00000000 0x00000000     `!..............
>     0xae111ea0 0x00007feb 0x95804365 0x00007fff     ........eC......
>     0x00000000 0x00000000 0x00000010 0x00000001     ................
>     0xa8cbc6a0 0x00007feb 0xae111d50 0x00007feb     ........P.......
>     0x00000000 0x00000000 0x00000000 0x00000000     ................
>     Call stack: [thread 0x7fff7b1ac180]: | start | main | gtk_main | g_main_loop_run | 
> g_main_context_iterate | g_main_context_dispatch | g_main_dispatch | g_idle_dispatch | gdk_threads_dispatch 
> | idle_call_activate | g_closure_invoke | g_cclosure_marshal_VOID__VOID | gtk_menu_item_activate | 
> g_signal_emit | g_signal_emit_valist | _g_closure_invoke_va | g_type_class_meta_marshalv | 
> g_cclosure_marshal_VOID__VOIDv | gtk_real_menu_item_activate | gtk_action_activate | 
> _gtk_action_emit_activate | g_signal_emit | g_signal_emit_valist | signal_emit_unlocked_R | 
> g_closure_invoke | g_cclosure_marshal_VOID__VOID | ui_new_window | bfwin_window_new | bfwin_show_main | 
> gtkosx_application_set_menu_bar | cocoa_menu_item_add_submenu | cocoa_menu_item_add_item | 
> cocoa_menu_item_sync | cocoa_menu_item_update_submenu | cocoa_menu_item_add_submenu | 
> cocoa_menu_item_add_item | _objc_rootAllocWithZone | class_createInstance | calloc | malloc_zone_calloc 
> Leak: 0x7febae112610  size=128  zone: DefaultMallocZone_0x1061b6000   _GNSMenuItem  ObjC  
> libgtkmacintegration.2.dylib
>     0x06226e48 0x00000001 0x00000000 0x00000000     Hn".............
>     0xae112e30 0x00007feb 0x06226e70 0x00000001     0.......pn".....
>     0x00000000 0x00000000 0x00000000 0x00000000     ................
>     0x00000000 0x00000000 0x00000000 0x00000000     ................
>     0xae112610 0x00007feb 0x95804365 0x00007fff     .&......eC......
>     0x00000000 0x00000000 0x00000010 0x00000001     ................
>     0xace17f90 0x00007feb 0xae112bc0 0x00007feb     .........+......
>     0x00000000 0x00000000 0x00000000 0x00000000     ................
>     Call stack: [thread 0x7fff7b1ac180]: | start | main | gtk_main | g_main_loop_run | 
> g_main_context_iterate | g_main_context_dispatch | g_main_dispatch | g_idle_dispatch | gdk_threads_dispatch 
> | idle_call_activate | g_closure_invoke | g_cclosure_marshal_VOID__VOID | gtk_menu_item_activate | 
> g_signal_emit | g_signal_emit_valist | _g_closure_invoke_va | g_type_class_meta_marshalv | 
> g_cclosure_marshal_VOID__VOIDv | gtk_real_menu_item_activate | gtk_action_activate | 
> _gtk_action_emit_activate | g_signal_emit | g_signal_emit_valist | signal_emit_unlocked_R | 
> g_closure_invoke | g_cclosure_marshal_VOID__VOID | ui_new_window | bfwin_window_new | bfwin_show_main | 
> gtkosx_application_set_menu_bar | cocoa_menu_item_add_submenu | cocoa_menu_item_add_item | 
> cocoa_menu_item_sync | cocoa_menu_item_update_submenu | cocoa_menu_item_add_submenu | 
> cocoa_menu_item_add_item | cocoa_menu_item_sync | cocoa_menu_item_update_submenu | 
> cocoa_menu_item_add_submenu |
> cocoa_menu_item_add_item | _objc_rootAllocWithZone | class_createInstance | calloc | malloc_zone_calloc 
> Leak: 0x7febae113080  size=128  zone: DefaultMallocZone_0x1061b6000   _GNSMenuItem  ObjC  
> libgtkmacintegration.2.dylib
>     0x06226e48 0x00000001 0x00000000 0x00000000     Hn".............
>     0xae112fc0 0x00007feb 0x06226e70 0x00000001     ./......pn".....
>     0x00000000 0x00000000 0x00000000 0x00000000     ................
>     0x00000000 0x00000000 0x00000000 0x00000000     ................
>     0xae113080 0x00007feb 0x95804365 0x00007fff     .0......eC......
>     0x00000000 0x00000000 0x00000010 0x00000001     ................
>     0xace17b40 0x00007feb 0xae113000 0x00007feb     @{.......0......
>     0x00000000 0x00000000 0x00000000 0x00000000     ................
>     Call stack: [thread 0x7fff7b1ac180]: | start | main | gtk_main | g_main_loop_run | 
> g_main_context_iterate | g_main_context_dispatch | g_main_dispatch | g_idle_dispatch | gdk_threads_dispatch 
> | idle_call_activate | g_closure_invoke | g_cclosure_marshal_VOID__VOID | gtk_menu_item_activate | 
> g_signal_emit | g_signal_emit_valist | _g_closure_invoke_va | g_type_class_meta_marshalv | 
> g_cclosure_marshal_VOID__VOIDv | gtk_real_menu_item_activate | gtk_action_activate | 
> _gtk_action_emit_activate | g_signal_emit | g_signal_emit_valist | signal_emit_unlocked_R | 
> g_closure_invoke | g_cclosure_marshal_VOID__VOID | ui_new_window | bfwin_window_new | bfwin_show_main | 
> gtkosx_application_set_menu_bar | cocoa_menu_item_add_submenu | cocoa_menu_item_add_item | 
> cocoa_menu_item_sync | cocoa_menu_item_update_submenu | cocoa_menu_item_add_submenu | 
> cocoa_menu_item_add_item | cocoa_menu_item_sync | cocoa_menu_item_update_submenu | 
> cocoa_menu_item_add_submenu |
> cocoa_menu_item_add_item | _objc_rootAllocWithZone | class_createInstance | calloc | malloc_zone_calloc 
> Leak: 0x7febae1134c0  size=128  zone: DefaultMallocZone_0x1061b6000   _GNSMenuItem  ObjC  
> libgtkmacintegration.2.dylib
>     0x06226e48 0x00000001 0x00000000 0x00000000     Hn".............
>     0xae113400 0x00007feb 0x06226e70 0x00000001     .4......pn".....
>     0x00000000 0x00000000 0x00000000 0x00000000     ................
>     0x00000000 0x00000000 0x00000000 0x00000000     ................
>     0xae1134c0 0x00007feb 0x95804365 0x00007fff     .4......eC......
>     0x00000000 0x00000000 0x00000010 0x00000001     ................
>     0xace17c60 0x00007feb 0xae113440 0x00007feb     `|       4      
>     0x00000000 0x00000000 0x00000000 0x00000000     ................
>     Call stack: [thread 0x7fff7b1ac180]: | start | main | gtk_main | g_main_loop_run | 
> g_main_context_iterate | g_main_context_dispatch | g_main_dispatch | g_idle_dispatch | gdk_threads_dispatch 
> | idle_call_activate | g_closure_invoke | g_cclosure_marshal_VOID__VOID | gtk_menu_item_activate | 
> g_signal_emit | g_signal_emit_valist | _g_closure_invoke_va | g_type_class_meta_marshalv | 
> g_cclosure_marshal_VOID__VOIDv | gtk_real_menu_item_activate | gtk_action_activate | 
> _gtk_action_emit_activate | g_signal_emit | g_signal_emit_valist | signal_emit_unlocked_R | 
> g_closure_invoke | g_cclosure_marshal_VOID__VOID | ui_new_window | bfwin_window_new | bfwin_show_main | 
> gtkosx_application_set_menu_bar | cocoa_menu_item_add_submenu | cocoa_menu_item_add_item | 
> cocoa_menu_item_sync | cocoa_menu_item_update_submenu | cocoa_menu_item_add_submenu | 
> cocoa_menu_item_add_item | cocoa_menu_item_sync | cocoa_menu_item_update_submenu | 
> cocoa_menu_item_add_submenu |
> cocoa_menu_item_add_item | _objc_rootAllocWithZone | class_createInstance | calloc | malloc_zone_calloc 
>
> Is this normal situation? Or there is something wrong with my code?
>
> Is there a clean way to destroy the window with menubar without causing memory leaks? The description of 
> gtkosxApplication seems to do not provide any hints...

See https://bugzilla.gnome.org/show_bug.cgi?id=701571

As part of investigating that I found and fixed a couple of leaks in GNSMenuItem. They're pushed but I'm 
holding off on making a new release until we get the event loop code sorted out to see if there are any other 
changes that I need to make.

Regards,
John Ralls