Testing for memory leaks in GTK

[Erik de Castro Lopo <mle+gtk mega-nerd com>]

Hi all,

I have written a small test program that can create independent toplevel
windows based on a command line parameter. Currently these top level
windows contain nothing more than a GtkLabel widget and destroy
themselves using a g_timeout after 30 seconds. When all the toplevel
windows have been destroyed the program calls gtk_main_quit() and then
terminates.

When this program is run under valgrind with an increasing number of top
level windows I notice that number of blocks 'still reachable' when
the program terminates increases with the number of top level windows
created:

     Created          Still reachable
     ----------------------------------------------
     1                397,039 bytes in 7,739 blocks
     2                401,271 bytes in 7,786 blocks
     3                405,111 bytes in 7,826 blocks
     4                408,271 bytes in 7,847 blocks
     5                412,399 bytes in 7,899 blocks

Assuming that the bug isn't in my program, doesn't this look like a
genuine leak that should be fixed?

Cheers,
Erik
-- 
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Erik de Castro Lopo
http://www.mega-nerd.com/