Porting GnomeMeeting

[Damien Sandras <dsandras seconix com>]

Hi all,

I started to port GnomeMeeting to Gnome2 and GTK2 a few days ago, and it
has proven to be a complete disaster.
The last version of GnomeMeeting was very stable (we have made tests and
stopped GM after 700 calls), now GnomeMeeting, with the same code,
crashes every 2 calls.

It seems to always happen because of threads. I always get XLib
Asynchronous Reply, even after the GDK lock is taken (Im sure it is
taken, and moreover it has always worked since more than one year).

Other common problem is a crash of this type while drawing the webcam
image in the drawing_area... :

#0  0x407fbb62 in g_logv (log_domain=0x406781ed "Gdk", 
    log_level=G_LOG_LEVEL_ERROR, format=0x4067854e "%s",
args1=0xbffff250)
    at gmessages.c:560
#1  0x407fbc1d in g_log (log_domain=0x406781ed "Gdk", 
    log_level=G_LOG_LEVEL_ERROR, format=0x4067854e "%s") at
gmessages.c:583
#2  0x406609e5 in gdk_x_error (display=0x80eed60, error=0xbffff30c)
    at gdkmain-x11.c:780
#3  0x401db3df in bonobo_x_error_handler (display=0x80eed60,
error=0xbffff30c)
    at bonobo-ui-main.c:49
#4  0x4154b9ed in _XError () from /usr/X11R6/lib/libX11.so.6
#5  0x4154a09b in _XReply () from /usr/X11R6/lib/libX11.so.6
#6  0x41545a97 in XSync () from /usr/X11R6/lib/libX11.so.6
#7  0x41545b20 in _XSyncFunction () from /usr/X11R6/lib/libX11.so.6
#8  0x4152ee34 in XCreateGC () from /usr/X11R6/lib/libX11.so.6
#9  0x40659878 in _gdk_x11_gc_new (drawable=0x82159f0, values=0x0,
values_mask=0)
    at gdkgc-x11.c:170
#10 0x4063a396 in gdk_gc_new_with_values (drawable=0x82159f0,
values=0x0, 
    values_mask=0) at gdkgc.c:91
#11 0x40648640 in gdk_window_create_gc (drawable=0x8215990, values=0x0,
mask=0)
    at gdkwindow.c:1231
#12 0x4063a396 in gdk_gc_new_with_values (drawable=0x8215990,
values=0x0, 
    values_mask=0) at gdkgc.c:91
#13 0x4063a2f3 in gdk_gc_new (drawable=0x8215990) at gdkgc.c:79
#14 0x40648349 in gdk_window_end_paint (window=0x8215990) at
gdkwindow.c:1066
#15 0x404c1ef4 in gtk_main_do_event (event=0xbffff6a8) at gtkmain.c:1276
#16 0x4064a33a in gdk_window_process_updates_internal (window=0x8215990)
    at gdkwindow.c:2111
#17 0x4064a3e1 in gdk_window_process_all_updates () at gdkwindow.c:2146
#18 0x4064a424 in gdk_window_update_idle (data=0x0) at gdkwindow.c:2159
#19 0x407f71d6 in g_idle_dispatch (source=0x826dbe8, 
    callback=0x4064a40c <gdk_window_update_idle>, user_data=0x0) at
gmain.c:3129
#20 0x407f4ac9 in g_main_dispatch (context=0x80f4f10) at gmain.c:1617
#21 0x407f58e7 in g_main_context_dispatch (context=0x80f4f10) at
gmain.c:2161
#22 0x407f5cc3 in g_main_context_iterate (context=0x80f4f10, block=1,
dispatch=1, 
    self=0x80df160) at gmain.c:2242
#23 0x407f639f in g_main_loop_run (loop=0x8266588) at gmain.c:2462
#24 0x404c161f in gtk_main () at gtkmain.c:915
#25 0x8058825 in main (argc=2, argv=0xbffff954, envp=0xbffff960)
    at gnomemeeting.cpp:377


Im completely puzzled. What has changed so much with threads except the
fact that I need to call gdk_threads_init ()?  The code is *exactly* the
same (Im even using broken and deprecated things).

Thanks for your help.

-- 
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