Re: Print dialog hangs for several seconds before activating
On Wed, 2010-06-09 at 20:20 -0400, David A Benjamin wrote: I've run into this issue (and have been poking at it recently). The core problem appears to be that, although GTK+ is using CUPS and setting things like httpBlocking off, the CUPS non-blocking API isn't. See conversations with CUPS developers at [1,2,3]. Yeah, it seems like threads are the way to go. It appears that the only sane way to interact with CUPS in a GUI application is to use separate threads. If folks do not object the change, I'll try my hand at them. Historically gtk+ could not depend on threads being enabled, leaving it up to apps to call g_thread_init() and gdk_thread_init(). However, as of glib 2.24 gobject now calls g_thread_init(), so it should be safe to use threads in gtk+. You can't call gtk+ widget code from a thread though, as apps may still not have called gdk_thread_init(), so you need to marshal any thread results back to the mainloop (via e.g. g_idle_add()). -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Alexander LarssonRed Hat, Inc al...@redhat.comalexander.lars...@gmail.com He's an unconventional coffee-fuelled vagrant on the run. She's a transdimensional snooty mercenary who can talk to animals. They fight crime! ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Print dialog hangs for several seconds before activating
On Thu, Jun 10, 2010 at 9:38 AM, Alexander Larsson al...@redhat.com wrote: On Wed, 2010-06-09 at 20:20 -0400, David A Benjamin wrote: I've run into this issue (and have been poking at it recently). The core problem appears to be that, although GTK+ is using CUPS and setting things like httpBlocking off, the CUPS non-blocking API isn't. See conversations with CUPS developers at [1,2,3]. Yeah, it seems like threads are the way to go. Dunno if this is related, but there is also bug 614581 that may help as well: https://bugzilla.gnome.org/show_bug.cgi?id=614581 which was committed as http://git.gnome.org/browse/gtk+/commit/?id=33097d65 HTH, Olivier. ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Print dialog hangs for several seconds before activating
Le mercredi 09 juin 2010 à 20:20 -0400, David A Benjamin a écrit : It appears that the only sane way to interact with CUPS in a GUI application is to use separate threads. If folks do not object the change, I'll try my hand at them. I would suggest to write a very thin layer that wraps the API and make it asynchronous the GLib way. See GAsyncResult/GSimpleAsyncResult with help of g_simple_async_result_run_in_thread(). Note that it won't make your API cancellable, I think that GResolver implement a solution to that. regards, Nicolas p.s. You could also simplement a DBus API for CUPS. ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
RE: [Gtk-osx-users] Print dialog hangs for several seconds before activating
Thanks Guys! This looks like it solved my problem. I had to apply the patch manually (GTK 2.18 on OS X 10.6.3 using jhbuild). No more hangs in the print dialog... my users will be singing your blessing. So the patch works, and from the bug it is has already been committed since 2.22. If it works, don't add more layers. Shawn Date: Thu, 10 Jun 2010 10:11:41 +0200 From: four...@gmail.com To: gtk-devel-list@gnome.org; gtk-osx-us...@lists.sourceforge.net CC: david...@mit.edu; al...@redhat.com Subject: Re: [Gtk-osx-users] Print dialog hangs for several seconds before activating On Thu, Jun 10, 2010 at 9:38 AM, Alexander Larsson al...@redhat.com wrote: On Wed, 2010-06-09 at 20:20 -0400, David A Benjamin wrote: I've run into this issue (and have been poking at it recently). The core problem appears to be that, although GTK+ is using CUPS and setting things like httpBlocking off, the CUPS non-blocking API isn't. See conversations with CUPS developers at [1,2,3]. Yeah, it seems like threads are the way to go. Dunno if this is related, but there is also bug 614581 that may help as well: https://bugzilla.gnome.org/show_bug.cgi?id=614581 which was committed as http://git.gnome.org/browse/gtk+/commit/?id=33097d65 HTH, Olivier. -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Gtk-osx-users mailing list gtk-osx-us...@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gtk-osx-users _ Hotmail has tools for the New Busy. Search, chat and e-mail from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_1___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Print dialog hangs for several seconds before activating
For some reason the Print dialog hangs for several seconds before fully activating. During this period I am unable to push any buttons and on my OS X 10.6.3, I get the little color wheel. After a few seconds, The dialog pops bigger, with several added tabs show up at the top (printer info). jhbuild info Name: gtk-i386 Module Set: gtk-osx-universal Type: autogen Install-date: not installed URL: http://ftp.gnome.org/gtk+/2.16/gtk+-2.18.2.tar.bz2 Version: 2.18.2 Tree-ID: 2.18.2-d41d8cd98f00b204e9800998ecf8427e Required-by: meta-gtk-universal Name: glib Module Set: gtk-osx Type: autogen Install-date: 2010-03-22 16:31:17 URL: http://ftp.gnome.org/pub/GNOME/sources/glib/2.22/glib-2.22.2.tar.bz2 Version: 2.22.2 Tree-ID: 2.22.2-d41d8cd98f00b204e9800998ecf8427e Required-by: glibmm, gnome-mime-data, pango, enchant, shared-mime-info, libsoup, atk After: meta-gtk-osx-bootstrap, gtk-doc Before: loudmouth, gstreamer . According to google, there seems to be a bug everyone is working arround, I have as of yet to implement correctly on my machine. https://bugs.launchpad.net/ubuntu/+source/gtk+2.0/+bug/475845 https://bugs.launchpad.net/ubuntu/+source/gtk+2.0/+bug/475845/comments/29 https://bugs.launchpad.net/ubuntu/+source/gtk+2.0/+bug/359975 http://serverfault.com/questions/104935/authinforequired-cups-overwrites Has anyone run into this problem, and is there a fix I am not aware of? Thanks in advance, Shawn ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
Re: Print dialog hangs for several seconds before activating
I've run into this issue (and have been poking at it recently). The core problem appears to be that, although GTK+ is using CUPS and setting things like httpBlocking off, the CUPS non-blocking API isn't. See conversations with CUPS developers at [1,2,3]. It appears that the only sane way to interact with CUPS in a GUI application is to use separate threads. If folks do not object the change, I'll try my hand at them. David [1] http://www.cups.org/newsgroups.php?s3708+gcups.development+v3713+T0 [2] http://www.cups.org/newsgroups.php?s3708+gcups.development+v3714+T0 [3] http://www.cups.org/newsgroups.php?s3708+gcups.development+v3716+T0 On Wed, 9 Jun 2010, Shawn Bakhtiar wrote: For some reason the Print dialog hangs for several seconds before fully activating. During this period I am unable to push any buttons and on my OS X 10.6.3, I get the little color wheel. After a few seconds, The dialog pops bigger, with several added tabs show up at the top (printer info). jhbuild info Name: gtk-i386 Module Set: gtk-osx-universal Type: autogen Install-date: not installed URL: http://ftp.gnome.org/gtk+/2.16/gtk+-2.18.2.tar.bz2 Version: 2.18.2 Tree-ID: 2.18.2-d41d8cd98f00b204e9800998ecf8427e Required-by: meta-gtk-universal Name: glib Module Set: gtk-osx Type: autogen Install-date: 2010-03-22 16:31:17 URL: http://ftp.gnome.org/pub/GNOME/sources/glib/2.22/glib-2.22.2.tar.bz2 Version: 2.22.2 Tree-ID: 2.22.2-d41d8cd98f00b204e9800998ecf8427e Required-by: glibmm, gnome-mime-data, pango, enchant, shared-mime-info, libsoup, atk After: meta-gtk-osx-bootstrap, gtk-doc Before: loudmouth, gstreamer . According to google, there seems to be a bug everyone is working arround, I have as of yet to implement correctly on my machine. https://bugs.launchpad.net/ubuntu/+source/gtk+2.0/+bug/475845 https://bugs.launchpad.net/ubuntu/+source/gtk+2.0/+bug/475845/comments/29 https://bugs.launchpad.net/ubuntu/+source/gtk+2.0/+bug/359975 http://serverfault.com/questions/104935/authinforequired-cups-overwrites Has anyone run into this problem, and is there a fix I am not aware of? Thanks in advance, Shawn ___ gtk-devel-list mailing list gtk-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-devel-list
