Possible memory leak in simple code

[Ian King <king eiffel com>]

Hi,

Below is some simple code that creates a window and an event box, sinks 
both to retain the reference, shows the window, and then constantly add 
and remove the event box to and from the window.  However when the code 
is running the heap keeps growing, the code is compiled on the latest 
OpenSolaris version and pmap shows the heap is at a very large size, 
running the binary under dbx using 'check -memuse' shows that a large 
number of allocations are being made by _XEnq

 Total    % of Num of  Avg    Allocation call stack
 Size      All Blocks  Size
========== ==== ====== ======  =======================================
 10222888  69%  98297    104  _XEnq < _XReply

It looks like gtk is performing asynchronous calls to X to retrieve some 
meta information but I haven't looked in to this too deeply, is this a 
known leak or will this memory eventually get reclaimed?

Thanks for your time

Ian King


#include <gtk/gtk.h>

int main( int   argc,
         char *argv[] )
{

   GtkWidget *window;
   GtkWidget *event_box;

   gtk_init (&argc, &argv);

   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
   g_object_ref ((GObject*)window);
   gtk_object_sink ((GtkObject*)window);

   event_box = gtk_event_box_new();
   g_object_ref((GObject*)event_box);
   gtk_object_sink((GtkObject*)event_box);

   gtk_widget_show(window);


   for (int i = 0; i < 100000; i++)
   {
       gtk_container_add((GtkContainer*) window, event_box);
       gtk_container_remove((GtkContainer*) window, event_box);
   }
   return 0;
}