[libvirt] [glib PATCH] gconfig, gobject: Use G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE

Michal Privoznik mprivozn at redhat.com
Wed Oct 3 12:28:15 UTC 2018


On 10/03/2018 01:48 PM, Fabiano Fidêncio wrote:
> Commit 7190c5024d introduced the usage of new GObject define macros with
> private. However as the conversion hasn't been done for abstract types
> (G_DEFINE_ABSTRACT_TYPE) and the addition of the private classes for the
> abstract types has been removed as part of the commit, crashes can be
> seen in Apps consuming libvirt-glib, as this one from GNOME Boxes:
> 
>  Thread 1 "gnome-boxes" received signal SIGSEGV, Segmentation fault.
>  0x00007ffff7ef2b35 in g_type_check_instance_is_fundamentally_a () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
>  (gdb) bt
>  #0  0x00007ffff7ef2b35 in g_type_check_instance_is_fundamentally_a () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
>  #1  0x00007ffff7ed2e75 in g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
>  #2  0x00007ffff6ef094e in gvir_domain_device_set_property (object=0x555556680950, prop_id=2, value=0x7fffffffcbe0,
>      pspec=0x555556772540) at libvirt-gobject-domain-device.c:89
>  #3  0x00007ffff7ed3b19 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
>  #4  0x00007ffff7ed5624 in g_object_new_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
>  #5  0x00007ffff7ed5959 in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
>  #6  0x00005555555d8257 in boxes_libvirt_machine_get_domain_disk (self=0x5555560e6790, error=0x55555615a630)
>      at /run/build/gnome-boxes/src/libvirt-machine.vala:547
>  #7  0x00005555555d0e7e in boxes_libvirt_machine_update_io_stat_co (_data_=0x55555615a320)
>      at /run/build/gnome-boxes/src/libvirt-machine.vala:280
>  #8  0x00005555555d09b2 in boxes_libvirt_machine_update_io_stat (self=0x5555560e6790, info=0x555555f25990, stat=0x555556736a90,
>      _callback_=0x5555555d2992 <boxes_libvirt_machine_update_stats_ready>, _user_data_=0x555556736a50)
>      at /run/build/gnome-boxes/src/libvirt-machine.vala:5
>  #9  0x00005555555d3120 in boxes_libvirt_machine_update_stats_co (_data_=0x555556736a50)
>      at /run/build/gnome-boxes/src/libvirt-machine.vala:332
>  #10 0x00005555555d29dd in boxes_libvirt_machine_update_stats_ready (source_object=0x5555567bb840, _res_=0x55555677ae00,
>      _user_data_=0x555556736a50) at /run/build/gnome-boxes/src/libvirt-machine.vala:328
>  #11 0x00007ffff72adc89 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
>  #12 0x00007ffff72adcc9 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
>  #13 0x00007ffff7dec948 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
>  #14 0x00007ffff7decd38 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
>  #15 0x00007ffff7decdcc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
>  #16 0x00007ffff72c2dbd in g_application_run () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
>  #17 0x00005555556004b6 in _vala_main (args=0x7fffffffd4f8, args_length1=1) at /run/build/gnome-boxes/src/main.vala:84
>  #18 0x0000555555600517 in main (argc=1, argv=0x7fffffffd4f8) at /run/build/gnome-boxes/src/main.vala:68
> 
> In order to solve the issue, let's just replace G_DEFINE_ABSTRACT_TYPE
> by G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE.
> 
> Signed-off-by: Fabiano Fidêncio <fidencio at redhat.com>
> ---
>  libvirt-gconfig/libvirt-gconfig-domain-address.c        | 2 +-
>  libvirt-gconfig/libvirt-gconfig-domain-chardev-source.c | 2 +-
>  libvirt-gconfig/libvirt-gconfig-domain-chardev.c        | 2 +-
>  libvirt-gconfig/libvirt-gconfig-domain-controller.c     | 2 +-
>  libvirt-gconfig/libvirt-gconfig-domain-graphics.c       | 2 +-
>  libvirt-gconfig/libvirt-gconfig-domain-hostdev.c        | 2 +-
>  libvirt-gconfig/libvirt-gconfig-domain-interface.c      | 2 +-
>  libvirt-gconfig/libvirt-gconfig-domain-smartcard.c      | 2 +-
>  libvirt-gconfig/libvirt-gconfig-domain-timer.c          | 2 +-
>  libvirt-gobject/libvirt-gobject-domain-device.c         | 2 +-
>  10 files changed, 10 insertions(+), 10 deletions(-)
> 

Oops. ACKed and pushed. Congratulations on your first libvirt-glib
contribution.

Michal




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