<html><head><style type="text/css"></style></head><body><div style="font-family:garamond,new york,times,serif;font-size:14pt"><div>Hi,<br>In my application, I haven't spawned a single thread nor do I call any dbus functions as I don't require both of them, it only the notifications thats needed. Still the control is stuck at the notify_notification_show() function call and then after the choke, it returns back to normal flow. In fact, the function calls g_thread_init and dbus_g_thread_init() was put after which the hangs got less, while I have tried both with and without these calls and still some times it hangs. Is libnotify using <a href="http://maemo.org/maemo_training_material/maemo4.x/html/maemo_Platform_Development/Chapter_05_Asynchronous_GLibDBus.html">dbus func. sync or async</a>?<br><br>Anyways, many thanks for the reply!<br><br>Regards,<br>Sundaram<br></div><div style="font-family: garamond,new york,times,serif; font-size: 14pt;"><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Christian Hammond <chipx86@chipx86.com><br><b><span style="font-weight: bold;">To:</span></b> Sundaram <legends2k@yahoo.com><br><b><span style="font-weight: bold;">Cc:</span></b> galago-devel@lists.freedesktop.org<br><b><span style="font-weight: bold;">Sent:</span></b> Thursday, February 5, 2009 2:58:35 PM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [Galago-devel] libnotify: system freezes for a few secs. on notify_notification_show<br></font><br> Hi,<br><br>libnotify is a thin wrapper around D-BUS, and all communication happens within D-BUS. I don't have experience with libnotify and threads either (as I tend to avoid threads in my apps). It's possible that it's libnotify, but I would start off assuming the issue has to do with your app and D-BUS in some way.<br> <br>Christian<br><br clear="all">-- <br>Christian Hammond - <a rel="nofollow" ymailto="mailto:chipx86@chipx86.com" target="_blank" href="mailto:chipx86@chipx86.com">chipx86@chipx86.com</a><br>VMware, Inc.<br> <br><br><div class="gmail_quote">On Thu, Feb 5, 2009 at 1:16 AM, Sundaram <span dir="ltr"><<a rel="nofollow" ymailto="mailto:legends2k@yahoo.com" target="_blank" href="mailto:legends2k@yahoo.com">legends2k@yahoo.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div><div style="font-family: garamond,new york,times,serif; font-size: 14pt;"><div style="font-family: garamond,new york,times,serif; font-size: 14pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"> <div style="font-family: garamond,new york,times,serif; font-size: 14pt;"><div>Hi,<br>Is libnotify thread safe? Should I call dbus_g_thread_init() to make sure it is?<br><br>I have written a Eng. thesaurus <a rel="nofollow" target="_blank" href="http://sourceforge.net/projects/artha">Artha</a> using GLib & GTK+, in which, when I get a particular hot key combination, on that key press signal handler, I call <span style="font-weight: bold;">notify_notification_show()</span> [before this, I close any earlier notifications by <span style="font-weight: bold;">notify_notification_close()</span>]. Everything works fine.<br> <br>But, when I press that hot key combo more than a few times, say 10, for a first few I get notification after notification, but towards the end (arbitrary), the app. freezes and even the desktop freezes for a few seconds (8 to 10 secs) and then I see the notification and everything gets back to normal, including my app. But when this happens, <span style="font-weight: bold;">notify_notification_show()</span> returns a FALSE (eventhough a notification was shown), and GError msg reads thus: <i>"Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.".</i><br><i><br></i>As for the code, before calling any other func. I call <span style="font-weight: bold;">g_thread_init()</span>, then <span style="font-weight: bold;">dbus_g_thread_init</span> and <span style="font-weight: bold;">notify_init()</span> and then get a notifier handle by calling <span style="font-weight: bold;">notify_notification_new_with_status_icon()</span> with a GtkStatus icon, in my main, all of them only once. After that, when in gtk_main() loop, when ever I get a hot key press signal every time, I update the body & summary of the same notifier with a new one using <span style="font-weight: bold;">notify_notification_update()</span> and then call notify_notification_show(). I haven't used any thread related functions except the above ones (init). Is anything wrong in this approach that libnotify's notify_notification_show() chokes the whole system for a few seconds, because of my wrong way of using it? Or is it a glitch on libnotify's side?<br><br>Thanks!<br><br>Regards,<br>Sundaram<br></div></div> </div></div></div><br> </div><br>_______________________________________________<br> galago-devel mailing list<br> <a rel="nofollow" ymailto="mailto:galago-devel@lists.freedesktop.org" target="_blank" href="mailto:galago-devel@lists.freedesktop.org">galago-devel@lists.freedesktop.org</a><br> <a rel="nofollow" target="_blank" href="http://lists.freedesktop.org/mailman/listinfo/galago-devel">http://lists.freedesktop.org/mailman/listinfo/galago-devel</a><br> <br></blockquote></div><br> </div></div></div><br> </body></html>