GLib BoF

Icon theme fallbacks (https://gitlab.gnome.org/GNOME/glib/merge_requests/72)

• GTK+ developers are happy with it, as long as its behaviour is the same as what GTK+ does; Philip to verify, then merge

Update on GProperty

• Some discussion about JS trampolining costs for animations in the shell
• People seem OK with this idea
• Who’s going to do the work? Can we guarantee it for 2.60?
• Reevaluate what to do about property documentation (getter + setter + property documentation + blurb)
• Some discussion of how to present this better in gtk-doc (list getter/setter prototypes below documentation from property doc block); bear in mind the need for _dup_ rather than _get_, etc.; does the getter return const or (transfer full)?

GError improvements:

• https://gitlab.gnome.org/GNOME/glib/issues/14

• Complex, lots of use cases

• > Have requested people to add their use cases to https://gitlab.gnome.org/GNOME/glib/issues/14

• Some discussion about ways of ABI-compatibly extending GError: probably need to have a new error domain which is 'extended' and overallocates the GError
• Could we also have a way of getting a backtrace from where a GError was *set*?

Thumbnailing:

• Long, rambly, off-topic discussion
• If Bastien wants it, he can implement it
• Thumbnail sizing, normal vs large, do we want symlinks for actual hard pixel sizes?

Unicode tables (https://gitlab.gnome.org/GNOME/glib/issues/1333):

• libicu has complex symbol versioning and is huge, and is a pain to build on Windows
• Can’t find any compelling alternatives
• Make sure we have a list of places to update UCD when it updates

Anything which people want to get upstream into GLib

• g_clear_pointer() typeof() improvements; more typeof() improvements everywhere
• Can we do something like g_clear_autoptr() which uses the autoptr-registered free function?
• Some discussion about getting g_autoptr() support working on Windows; Nirbheek to take a look at it so that we can potentially use it for GTK+ 4.0? Evaluating clang vs clang-cl next month

Finalisation of objects from the thread which created them

• Philip to take a look
• Need to think about whether we marshal dispose() as well as finalize() — could this cause deadlocks?

• Once it’s done in GLib, GTK+ needs to implement the vfunc in GtkWidget

Misc discussion about atomics:

• Do we make higher atomic refcount safety guarantees than we actually need? Do the new acquire()/release() APIs match up with C11?
• Fallback atomic refcounting code is not actually safe, according to Behdad

2.60 planning

• Elementary have some utility functions which might be upstreamable into GLib (GDateTime comparisons, ISO8601 formatting)
• Topological sort?