hi all conn = dbus_bus_get (DBUS_BUS_SESSION, &derror);   if (!conn)     lose ("Cannot get connection: %s", derror.message);   g_print ("(expecting assertion...)\n");   gconn = dbus_connection_get_g_connection (conn);   if (gconn)     lose ("Retrieved DBusGConection from plain DBusConnection");   /* Check DBusGConnection -> DBusConnection -> DBusGConnection */   gconn = dbus_g_bus_get (DBUS_BUS_SESSION, &gerror);   if (!gconn)     lose ("Cannot get connection: %s", gerror->message);     conn = dbus_g_connection_get_connection (gconn);   if (!conn)    lose ("Cannot get DBusConnection from DBusGConnection");   gconn2 = dbus_connection_get_g_connection (conn); this is the portion of code where i hav problem .. here when i am comparing the gonn ?& gcoon2 i see that both doesnt match as i see that gconn2 alwaqys returns 0...any inputs on this will be a great help 4 me thanx in advance vasanth <div class="gmail_quote">On Wed, Jun 11, 2008 at 11:00 AM, Kalle Vahlman <<a href="mailto:kalle.vahlman@gmail.com">kalle.vahlman@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> 2007/10/25 Havoc Pennington <<a href="mailto:hp@redhat.com">hp@redhat.com</a>>: > Hi, > > Kalle Vahlman wrote: >> >> I'm not sure if the D-Bus daemon already has such logging facilities, >> but storing information on the amount of messages, average/peak sizes >> of payloads and identifying who sends how much during regural daily >> usage should be very interesting to chart. >> > > Indeed. This is most likely very simple: an easy approach would be to hack > the daemon to send a signal message out whenever the data changes, then have > a little app that connects to dbus and gets these messages. The only trick > is, don't count the signals themselves ;-) This has been sitting in my inbox as a TODO for quite some time and few weeks ago I went ahead and hacked something up. Then got busy etc. but now the code is available at  <a href="http://gitweb.pingu.fi/?p=dbus.git;a=summary" target="_blank">http://gitweb.pingu.fi/?p=dbus.git;a=summary</a> There's two new things in the repo (both controlled by the --enable option for configure): In libdbus there now is a trivial traffic logging support by recording data from DBusMessages into a file. This is public API with log domain support so you could use it in whatever application you want to for recording messages for traffic profiling. And then there's the dbus-daemon portion which records all outgoing messages using the above system. I decided that this would be the most interesting data to start with, as it includes _all_ delivered messages even when there are multiple recipients. Of course it doesn't record the incoming messages that don't have a recipient but that's for another day. The data recorded is as follows: domain ; sender ; destination ; message type ; signature ; size(bytes) ; sha-1  of message body ; message timestamp (seconds from epoch) Obviously, this means sha-1 calculations for each message recorded as well as disc access so it definitely will degrade performance :) The uniqueness of a message is an important factor though, so I think it is worth it. It's not like this code is intended to run on production systems anyway ;) The profiling has two enviromental variables:  - DBUS_TRAFFIC_PROFILING for enabling/disabling the profiling (set/unset)  - DBUS_TRAFFIC_PROFILING_LOG for controlling where to write the file Let me know if I've done something silly in the code. I've been running it on my N800 for a while and last night set up my desktop machine to do the same, so at least it works to some degree. Haven't had time to really analyze the data, but seems like the average message size (in system bus at least) is pretty small and the bus is not so active as one might think given the impression that "everything" uses D-Bus. There were some peaks though and seems like the system bus is more active so it should be interesting to see what happens there too. -- Kalle Vahlman, <a href="mailto:zuh@iki.fi">zuh@iki.fi</a> Powered by <a href="http://movial.fi" target="_blank">http://movial.fi</a> Interesting stuff at <a href="http://syslog.movial.fi" target="_blank">http://syslog.movial.fi</a> _______________________________________________ dbus mailing list <a href="mailto:dbus@lists.freedesktop.org">dbus@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/dbus" target="_blank">http://lists.freedesktop.org/mailman/listinfo/dbus</a> </blockquote></div>