Can build, but won't run.

Steve Teale

Posted Mon, 20 Apr 2015 13:58:12 GMT

I can build my COMPO app against Gtkd3

It uses a Tree view, and it segfaults as soon as I try to select the single object that is present in the view at startup. To be honest I have never understood the GTK documentation for this stuff, but it worked fine with 2.4.

I derive a class from TreeModel, and override the methods specified by the interface.

You seem to also define a TreeModel implementation in the library, using mixins somehow. Should I be using that implementation? Do you have a working tree view example?

The stack trace to the segfault as generated by CodeBlocks 10.05 is as follows (how do I send a file). All of the action seems to happen in libgtk-3.so.

#0 0xb7f6fcab pthreadmutexlock() (/lib/i386-linux-gnu/libpthread.so.0:??)
#1 0x889bbff core.sync.mutex.Mutex.T9lock_implTC6object5ErrorZ.lock_impl() () (??:??) #2 0x889bacb core.sync.mutex.Mutex.lock_nothrow() () (??:??) #3 0x889501f gc.gc.GC.malloc() () (??:??) #4 ( 0x08858439 in gc_qalloc() (??:??) #5 ( 0x0885a298 in _d_newarrayU() (??:??) #6 ( 0x0885a385 in _d_newarrayiT() (??:??) #7 0x862b36d glib.Str.Str.toStringz() () (??:??) #8 0x8768e20 gobject.ObjectG.ObjectG.T10getDObjectTC3gtk9TreeModel9TreeModelTC3gtk9TreeModel9TreeModelTPS4gtkc8gtktypes12GtkTreeModelZ.getDObject() () (??:??)
#9 0x8768b48 gtk.TreeModel.TreeModel.customTreeModelIterNthChild() () (??:??)
#10 0xb7038203 gtktreemodeliternthchild() (/usr/lib/i386-linux-gnu/libgtk-3.so.0:??) #11 0x87679f8 gtk.TreeModel.TreeModel.mixin21.iterNthChild() () (??:??) #12 0x8768b66 gtk.TreeModel.TreeModel.customTreeModelIterNthChild() () (??:??) #13 0xb7038203 gtktreemodeliternthchild() (/usr/lib/i386-linux-gnu/libgtk-3.so.0:??)
#14 0x87679f8 gtk.TreeModel.TreeModel.mixin21.iterNthChild() () (??:??) #15 0x8768b66 gtk.TreeModel.TreeModel.customTreeModelIterNthChild() () (??:??) #16 0xb7038203 gtk_tree_model_iter_nth_child() (/usr/lib/i386-linux-gnu/libgtk-3.so.0:??) #17 0x87679f8 gtk.TreeModel.TreeModel.mixin21.iterNthChild() () (??:??)
#18 0x8768b66 gtk.TreeModel.TreeModel.customTreeModelIterNthChild() () (??:??)
#19 0xb7038203 gtktreemodeliternthchild() (/usr/lib/i386-linux-gnu/libgtk-3.so.0:??) #20 0x87679f8 gtk.TreeModel.TreeModel.mixin21.iterNthChild() () (??:??) #21 0x8768b66 gtk.TreeModel.TreeModel.customTreeModelIterNthChild() () (??:??) #22 0xb7038203 gtktreemodeliternthchild() (/usr/lib/i386-linux-gnu/libgtk-3.so.0:??)
#23 0x87679f8 gtk.TreeModel.TreeModel.mixin21.iterNthChild() () (??:??) #24 0x8768b66 gtk.TreeModel.TreeModel.customTreeModelIterNthChild() () (??:??) #25 0xb7038203 gtk_tree_model_iter_nth_child() (/usr/lib/i386-linux-gnu/libgtk-3.so.0:??) #26 0x87679f8 gtk.TreeModel.TreeModel.mixin21.iterNthChild() () (??:??)
#27 0x8768b66 gtk.TreeModel.TreeModel.customTreeModelIterNthChild() () (??:??)
#28 0xb7038203 gtktreemodeliternthchild() (/usr/lib/i386-linux-gnu/libgtk-3.so.0:??) #29 0x87679f8 gtk.TreeModel.TreeModel._mixin21.iterNthChild() () (??:??)

Mike Wey

Posted Mon, 20 Apr 2015 20:04:29 +0200 in reply to Steve Teale

On 04/20/2015 03:58 PM, Steve Teale wrote:

I can build my COMPO app against Gtkd3

It uses a Tree view, and it segfaults as soon as I try to select the single object that is present in the view at startup. To be honest I have never understood the GTK documentation for this stuff, but it worked fine with 2.4.

I think this is because for two functions the TreeIter parameter changed
to out, which means the TreeIter now has to initialized before using it.

This commit should summarize the needed changes:
https://github.com/gtkd-developers/GtkD/commit/91fc6e074e05a63a0daeb6c18245fcdc869dbec2

I derive a class from TreeModel, and override the methods specified by the interface.

You seem to also define a TreeModel implementation in the library, using mixins somehow. Should I be using that implementation? Do you have a working tree view example?

A default implementation for when Gtk returns a TreeModel without a
corresponding D Object.

The stack trace to the segfault as generated by CodeBlocks 10.05 is as follows (how do I send a file). All of the action seems to happen in libgtk-3.so.
...

Can build, but won't run.

Re: Can build, but won't run.